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International Journal of Photoenergy
Volume 2014, Article ID 498540, 15 pages
http://dx.doi.org/10.1155/2014/498540
Review Article

Hierarchical Structures from Inorganic Nanocrystal Self-Assembly for Photoenergy Utilization

1Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), College of Chemistry, Nankai University, Tianjin 300071, China
2School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China
3School of Chemical Engineering, University of Adelaide, Adelaide, SA 5005, Australia

Received 7 February 2014; Accepted 7 March 2014; Published 3 April 2014

Academic Editor: Yong Ma

Copyright © 2014 Yun-Pei Zhu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. Y. P. Zhu, T. Z. Ren, and Z. Y. Yuan, “Mesoporous non-siliceous inorganic-organic hybrids: a promising platform for designing multifunctional materials,” New Journal of Chemistry, 2014. View at Publisher · View at Google Scholar
  2. T. Y. Ma, L. Liu, and Z. Y. Yuan, “Direct synthesis of ordered mesoporous carbons,” Chemical Society Reviews, vol. 42, pp. 3977–4003, 2013. View at Google Scholar
  3. T.-Y. Ma and Z.-Y. Yuan, “Metal phosphonate hybrid mesostructures: environmentally friendly multifunctional materials for clean energy and other applications,” ChemSusChem, vol. 4, no. 10, pp. 1407–1419, 2011. View at Publisher · View at Google Scholar · View at Scopus
  4. Y. Sun, B. Mayers, and Y. Xia, “Metal nanostructures with hollow interiors,” Advanced Materials, vol. 15, no. 7-8, pp. 641–646, 2003. View at Google Scholar · View at Scopus
  5. T. Nakashima and N. Kimizuka, “Interfacial synthesis of hollow TiO2 microspheres in ionic liquids,” Journal of the American Chemical Society, vol. 125, no. 21, pp. 6386–6387, 2003. View at Publisher · View at Google Scholar · View at Scopus
  6. Y. L. Hou, H. Kondoh, and T. Ohta, “Self-assembly of Co nanoplatelets into spheres: synthesis and characterization,” Chemistry of Materials, vol. 17, no. 15, pp. 3994–3996, 2005. View at Publisher · View at Google Scholar · View at Scopus
  7. Z. H. Nie, A. Petukhova, and E. Kumacheva, “Properties and emerging applications of self-assembled structures made from inorganic nanoparticles,” Nature Nanotechnology, vol. 5, no. 1, pp. 15–25, 2010. View at Publisher · View at Google Scholar · View at Scopus
  8. M. R. Buck and R. E. Schaak, “Emerging strategies for the total synthesis of inorganic nanostructures,” Angewandte Chemie, vol. 52, pp. 2–27, 2013. View at Google Scholar
  9. C. M. Doherty, D. Buso, A. J. Hill, S. Furukawa, S. Kitagawa, and P. Falcaro, “Using functional nano- and microparticles for the preparation of metal-organic framework composites with novel properties,” Accounts of Chemical Research, vol. 47, pp. 396–405, 2014. View at Google Scholar
  10. G. M. Whitesides and B. Grzybowski, “Self-assembly at all scales,” Science, vol. 295, no. 5564, pp. 2418–2421, 2002. View at Publisher · View at Google Scholar · View at Scopus
  11. I. E. Rauda, R. Buonsanti, L. C. Saldarriaga-Lopez et al., “General method for the synthesis of hierarchical nanocrystal-based mesoporous materials,” ACS Nano, vol. 6, pp. 6386–6399, 2012. View at Google Scholar
  12. W. X. Dong, G. L. Zhao, B. Song, G. Xu, J. Zhou, and G. R. Han, “Surfactant-free fabrication of CaTiO3 butterfly-like dendrite via a simple one-step hydrothermal route,” CrystEngComm, vol. 14, pp. 6990–6997, 2012. View at Google Scholar
  13. B. Xie, H. Shi, G. Liu et al., “Preparation of surface porous microcapsules templated by self-assembly of nonionic surfactant micelles,” Chemistry of Materials, vol. 20, no. 9, pp. 3099–3104, 2008. View at Publisher · View at Google Scholar · View at Scopus
  14. T.-Y. Ma, J.-L. Cao, G.-S. Shao, X.-J. Zhang, and Z.-Y. Yuan, “Hierarchically structured squama-like cerium-doped titania: synthesis, photoactivity, and catalytic CO oxidation,” Journal of Physical Chemistry C, vol. 113, no. 38, pp. 16658–16667, 2009. View at Publisher · View at Google Scholar · View at Scopus
  15. Z.-Y. Yuan and B.-L. Su, “Insights into hierarchically meso-macroporous structured materials,” Journal of Materials Chemistry, vol. 16, no. 7, pp. 663–677, 2006. View at Publisher · View at Google Scholar · View at Scopus
  16. A. Stein, S. G. Rudisill, and N. D. Petkovich, “Perspective on the influence of interactions between hard and soft templates and precursors on morphology of hierarchically structured porous materials,” Chemistry of Materials, vol. 26, pp. 259–276, 2014. View at Google Scholar
  17. T.-Y. Ma, X.-J. Zhang, G.-S. Shao, J.-L. Cao, and Z.-Y. Yuan, “Ordered macroporous titanium phosphonate materials: synthesis, photocatalytic activity, and heavy metal ion adsorption,” Journal of Physical Chemistry C, vol. 112, no. 8, pp. 3090–3096, 2008. View at Publisher · View at Google Scholar · View at Scopus
  18. T.-Y. Ma, X.-Z. Lin, X.-J. Zhang, and Z.-Y. Yuan, “Hierarchical mesostructured titanium phosphonates with unusual uniform lines of macropores,” Nanoscale, vol. 3, no. 4, pp. 1690–1696, 2011. View at Publisher · View at Google Scholar · View at Scopus
  19. Y. Li, Z. Y. Fu, and B. L. Su, “Hierarchically structured porous materials for energy conversion and storage,” Advanced Functional Materials, vol. 22, pp. 3634–4667, 2012. View at Google Scholar
  20. T. Q. Wang, X. L. Wang, Y. Lu et al., “Self-assembly of hierarchical Fe3O4 microsphere/graphene nanosheet composite: towards a promising high-performance anode for Li-ion batteries,” RSC Advances, vol. 4, pp. 322–330, 2014. View at Google Scholar
  21. Y. Zhong, Z. X. Wang, R. F. Zhang et al., “Interfacial self-assembly driven formation of hierarchically structured nanocrystals with photocatalytic activity,” ACS Nano, vol. 8, pp. 827–833, 2014. View at Google Scholar
  22. L.-H. Chen, X.-Y. Li, G. Tian et al., “Highly stable and reusable multimodal zeolite TS-1 based catalysts with hierarchically interconnected three-level micro-meso-macroporous structure,” Angewandte Chemie, vol. 50, no. 47, pp. 11156–11161, 2011. View at Publisher · View at Google Scholar · View at Scopus
  23. X.-Y. Yang, G. Tian, L.-H. Chen et al., “Well-organized zeolite nanocrystal aggregates with interconnected hierarchically micro-meso-macropore systems showing enhanced catalytic performance,” Chemistry, vol. 17, no. 52, pp. 14987–14995, 2011. View at Publisher · View at Google Scholar · View at Scopus
  24. R. Dang, L. L. Song, W. J. Dong et al., “Synthesis and self-assembly of large-area Cu nanosheets and their application as an aqueous conductive ink on flexible electronics,” ACS Applied Materials Interfaces, vol. 6, pp. 622–629, 2014. View at Google Scholar
  25. K. J. M. Bishop, C. E. Wilmer, S. Soh, and B. A. Grzybowski, “Nanoscale forces and their uses in self-assembly,” Small, vol. 5, no. 14, pp. 1600–1630, 2009. View at Publisher · View at Google Scholar · View at Scopus
  26. Y. J. Kang, K. J. Erickson, and T. A. Taton, “Plasmonic nanoparticle chains via a morphological, sphere-to-string transition,” Journal of the American Chemical Society, vol. 127, no. 40, pp. 13800–13801, 2005. View at Publisher · View at Google Scholar · View at Scopus
  27. K. K. Caswell, J. N. Wilson, U. H. F. Bunz, and C. J. Murphy, “Preferential end-to-end assembly of gold nanorods by biotin-streptavidin connectors,” Journal of the American Chemical Society, vol. 125, no. 46, pp. 13914–13915, 2003. View at Publisher · View at Google Scholar · View at Scopus
  28. Z. Y. Tang, Z. L. Zhang, Y. Wang, S. C. Glotzer, and N. A. Kotov, “Self-assembly of CdTe nanocrystals into free-floating sheets,” Science, vol. 314, no. 5797, pp. 274–278, 2006. View at Publisher · View at Google Scholar · View at Scopus
  29. N. N. Zhao, K. Liu, J. Greener, Z. H. Nie, and E. Kumacheva, “Close-packed superlattices of side-by-side assembled au-cdse nanorods,” Nano Letters, vol. 9, no. 8, pp. 3077–3081, 2009. View at Publisher · View at Google Scholar · View at Scopus
  30. S. Park, J.-H. Lim, S.-W. Chung, and C. A. Mirkin, “Self-assembly of mesoscopic metal-polymer amphiphiles,” Science, vol. 303, no. 5656, pp. 348–351, 2004. View at Publisher · View at Google Scholar · View at Scopus
  31. D. Nykypanchuk, M. M. Maye, D. van der Lelie, and O. Gang, “DNA-guided crystallization of colloidal nanoparticles,” Nature, vol. 451, no. 7178, pp. 549–552, 2008. View at Publisher · View at Google Scholar · View at Scopus
  32. C. R. Iacovella and S. C. Glotzer, “Complex crystal structures formed by the self-assembly of ditethered nanospheres,” Nano Letters, vol. 9, no. 3, pp. 1206–1211, 2009. View at Publisher · View at Google Scholar · View at Scopus
  33. J. Sharma, R. Chhabra, A. Cheng, J. Brownell, Y. Liu, and H. Yan, “Control of self-assembly of DNA tubules through integration of gold nanoparticles,” Science, vol. 323, no. 5910, pp. 112–116, 2009. View at Publisher · View at Google Scholar · View at Scopus
  34. J. F. Banfield, S. A. Welch, H. Z. Zhang, T. T. Ebert, and R. L. Penn, “Aggregation-based crystal growth and microstructure development in natural iron oxyhydroxide biomineralization products,” Science, vol. 289, no. 5480, pp. 751–754, 2000. View at Publisher · View at Google Scholar · View at Scopus
  35. R. L. Penn and J. F. Banfield, “Imperfect oriented attachment: dislocation generation in defect-free nanocrystals,” Science, vol. 281, no. 5379, pp. 969–971, 1998. View at Google Scholar · View at Scopus
  36. D. Zitoun, N. Pinna, N. Frolet, and C. Belin, “Single crystal manganese oxide multipods by oriented attachment,” Journal of the American Chemical Society, vol. 127, no. 43, pp. 15034–15035, 2005. View at Publisher · View at Google Scholar · View at Scopus
  37. J. J. Teo, Y. Chang, and H. C. Zeng, “Fabrications of hollow nanocubes of Cu2O and Cu via reductive self-assembly of CuO nanocrystals,” Langmuir, vol. 22, no. 17, pp. 7369–7377, 2006. View at Publisher · View at Google Scholar · View at Scopus
  38. C. Pacholski, A. Kornowski, and H. Weller, “Self-assembly of ZnO: from nanodots to nanorods,” Angewandte Chemie Intenational Edition, vol. 41, no. 7, pp. 1188–1191, 2002. View at Google Scholar
  39. Z. H. Nie, D. Fava, E. Kumacheva, S. Zou, G. C. Walker, and M. Rubinstein, “Self-assembly of metal-polymer analogues of amphiphilic triblock copolymers,” Nature Materials, vol. 6, no. 8, pp. 609–614, 2007. View at Publisher · View at Google Scholar · View at Scopus
  40. T.-Z. Ren, Z.-Y. Yuan, W. Hu, and X. Zou, “Single crystal manganese oxide hexagonal plates with regulated mesoporous structures,” Microporous and Mesoporous Materials, vol. 112, no. 1–3, pp. 467–473, 2008. View at Publisher · View at Google Scholar · View at Scopus
  41. Y. X. Liu, D. S. Wang, Q. Peng, D. R. Chu, X. W. Liu, and Y. D. Li, “Directly assembling ligand-free ZnO nanocrystals into three-dimensional mesoporous structures by oriented attachment,” Inorganic Chemistry, vol. 50, no. 12, pp. 5841–5847, 2011. View at Publisher · View at Google Scholar · View at Scopus
  42. X. Xu, F. Liu, K. Yu, W. Huang, B. Peng, and W. Wei, “A kinetic model for nanocrystal morphology evolution,” ChemPhysChem, vol. 8, no. 5, pp. 703–711, 2007. View at Publisher · View at Google Scholar · View at Scopus
  43. H. G. Yang and H. C. Zeng, “Self-construction of hollow SnO2 octahedra based on two-dimensional aggregation of nanocrystallites,” Angewandte Chemie, vol. 43, no. 44, pp. 5930–5933, 2004. View at Publisher · View at Google Scholar · View at Scopus
  44. J. Li and H. C. Zeng, “Hollowing Sn-doped TiO2 nanospheres via Ostwald ripening,” Journal of the American Chemical Society, vol. 129, no. 51, pp. 15839–15847, 2007. View at Publisher · View at Google Scholar · View at Scopus
  45. A. Cabot, M. Ibáñez, P. Guardia, and A. P. Alivisatos, “Reaction regimes on the synthesis of hollow particles by the Kirkendall effect,” Journal of the American Chemical Society, vol. 131, no. 32, pp. 11326–11328, 2009. View at Publisher · View at Google Scholar · View at Scopus
  46. H. J. Fan, M. Knez, R. Scholz et al., “Monocrystalline spinel nanotube fabrication based on the Kirkendall effect,” Nature Materials, vol. 5, no. 8, pp. 627–631, 2006. View at Publisher · View at Google Scholar · View at Scopus
  47. Y. D. Yin, R. M. Rioux, C. K. Erdonmez, S. Hughes, G. A. Somorjal, and A. P. Alivisatos, “Formation of hollow nanocrystals through the nanoscale Kirkendall effect,” Science, vol. 304, no. 5671, pp. 711–714, 2004. View at Publisher · View at Google Scholar · View at Scopus
  48. T.-Y. Ma, H. Li, T.-Z. Ren, and Z.-Y. Yuan, “Mesoporous SrTiO3 nanowires from a template-free hydrothermal process,” RSC Advances, vol. 2, no. 7, pp. 2790–2796, 2012. View at Publisher · View at Google Scholar · View at Scopus
  49. F. Bai, D. S. Wang, Z. Y. Huo et al., “A versatile bottom-up assembly approach to colloidal spheres from nanocrystals,” Angewandte Chemie, vol. 46, no. 35, pp. 6650–6653, 2007. View at Publisher · View at Google Scholar · View at Scopus
  50. L. Y. Wang, P. Li, J. Zhuang et al., “Carboxylic acid enriched nanospheres of semiconductor nanorods for cell imaging,” Angewandte Chemie, vol. 47, no. 6, pp. 1054–1057, 2008. View at Publisher · View at Google Scholar · View at Scopus
  51. C. Chen, C. Y. Nan, D. S. Wang et al., “Mesoporous multicomponent nanocomposite colloidal spheres: ideal high-temperature stable model catalysts,” Angewandte Chemie, vol. 50, no. 16, pp. 3725–3729, 2011. View at Publisher · View at Google Scholar · View at Scopus
  52. T.-Y. Ma, Z.-Y. Yuan, and Q. J.-L. Cao, “Hydrangea-like meso-macroporous ZnO-CeO2 binary oxide materials: synthesis, photocatalysis and CO oxidation,” European Journal of Inorganic Chemistry, no. 5, pp. 716–724, 2010. View at Publisher · View at Google Scholar · View at Scopus
  53. T.-Y. Ma, X.-Z. Lin, X.-J. Zhang, and Z.-Y. Yuan, “High surface area titanium phosphonate materials with hierarchical porosity for multi-phase adsorption,” New Journal of Chemistry, vol. 34, no. 6, pp. 1209–1216, 2010. View at Publisher · View at Google Scholar · View at Scopus
  54. M. A. Correa-Duarte, J. Pérez-Juste, A. Sánchez-Iglesias, M. Giersig, and L. M. Liz-Marzán, “Aligning Au nanorods by using carbon nanotubes as templates,” Angewandte Chemie, vol. 44, no. 28, pp. 4375–4378, 2005. View at Publisher · View at Google Scholar · View at Scopus
  55. S. R. Hall, H. Bolger, and S. Mann, “Morphosynthesis of complex inorganic forms using pollen grain templates,” Chemical Communications, vol. 9, no. 22, pp. 2784–2785, 2003. View at Google Scholar · View at Scopus
  56. Y. S. Shin, J. Liu, J. H. Chang, Z. M. Nie, and G. Exarhos, “Hierarchically ordered ceramics through surfactant-templated sol-gel mineralization of biological cellular structures,” Advanced Materials, vol. 13, pp. 728–732, 2001. View at Google Scholar
  57. H. Zhou, X. Li, T. Fan et al., “Artificial inorganic leafs for efficient photochemical hydrogen production inspired by natural photosynthesis,” Advanced Materials, vol. 22, no. 9, pp. 951–956, 2010. View at Publisher · View at Google Scholar · View at Scopus
  58. H. E. Bakkali, A. Castiñeiras, I. García-Santos, J. M. González-Pérez, and J. Niclós-Gutiérrez, “Metallo-supramolecular structures by self-assembly through weak interactions in mixed ligand metal complexes of adenine and malonate,” Crystal Growth & Design, vol. 14, no. 1, pp. 249–260, 2014. View at Publisher · View at Google Scholar
  59. J.-Y. Chane-Ching, F. Cobo, D. Aubert, H. G. Harvey, M. Airiau, and A. Corma, “A general method for the synthesis of nanostructured large-surface-area materials through the self-assembly of functionalized nanoparticles,” Chemistry, vol. 11, no. 3, pp. 979–987, 2005. View at Publisher · View at Google Scholar · View at Scopus
  60. Z.-Y. Yuan, T.-Z. Ren, and B.-L. Su, “Hierarchically mesostructured titania materials with an unusual interior macroporous structure,” Advanced Materials, vol. 15, no. 17, pp. 1462–1465, 2003. View at Publisher · View at Google Scholar · View at Scopus
  61. X.-Y. Yang, A. Léonard, A. Lemaire, G. Tian, and B.-L. Su, “Self-formation phenomenon to hierarchically structured porous materials: design, synthesis, formation mechanism and applications,” Chemical Communications, vol. 47, no. 10, pp. 2763–2786, 2011. View at Publisher · View at Google Scholar · View at Scopus
  62. Z.-Y. Yuan, A. Vantomme, A. Léonard, and B.-L. Su, “Surfactant-assisted synthesis of unprecedented hierarchical meso-macrostructured zirconia,” Chemical Communications, vol. 9, no. 13, pp. 1558–1559, 2003. View at Google Scholar · View at Scopus
  63. T.-Z. Ren, Z.-Y. Yuan, and B.-L. Su, “Microwave-assisted preparation of hierarchical mesoporous-macroporous boehmite AlOOH and gamma-Al2O3,” Langmuir, vol. 20, no. 4, pp. 1531–1534, 2004. View at Publisher · View at Google Scholar · View at Scopus
  64. Z.-Y. Yuan, T.-Z. Ren, A. Vantomme, and B.-L. Su, “Facile and generalized preparation of hierarchically mesoporous-macroporous binary metal oxide materials,” Chemistry of Materials, vol. 16, no. 24, pp. 5096–5106, 2004. View at Google Scholar · View at Scopus
  65. S. L. Tripp, R. E. Dunin-Borkowski, and A. Wei, “Flux closure in self-assembled cobalt nanoparticle rings,” Angewandte Chemie, vol. 42, no. 45, pp. 5591–5593, 2003. View at Publisher · View at Google Scholar · View at Scopus
  66. G. A. Held, G. Grinstein, H. Doyle, S. H. Sun, and C. B. Murray, “Competing interactions in dispersions of superparamagnetic nanoparticles,” Physical Review B, vol. 64, Article ID 012408, 124084 pages, 2001. View at Publisher · View at Google Scholar · View at Scopus
  67. K. D. Hermanson, S. O. Lumsdon, J. P. Williams, E. W. Kaler, and O. D. Velev, “Dielectrophoretic assembly of electrically functional microwires from nanoparticle suspensions,” Science, vol. 294, no. 5544, pp. 1082–1086, 2001. View at Publisher · View at Google Scholar · View at Scopus
  68. S. Acharya, I. Patla, J. Kost, S. Efrima, and Y. Golan, “Switchable assembly of ultra narrow CdS nanowires and nanorods,” Journal of the American Chemical Society, vol. 128, no. 29, pp. 9294–9295, 2006. View at Publisher · View at Google Scholar · View at Scopus
  69. C. Bechinger, M. Brunner, and P. Leiderer, “Phase behavior of two-dimensional colloidal systems in the presence of periodic light fields,” Physical Review Letters, vol. 86, no. 5, pp. 930–933, 2001. View at Publisher · View at Google Scholar · View at Scopus
  70. R. Klajn, K. J. M. Bishop, and B. A. Grzybowski, “Light-controlled self-assembly of reversible and irreversible nanoparticle suprastructures,” Proceedings of the National Academy of Sciences of the United States of America, vol. 104, no. 25, pp. 10305–10309, 2007. View at Publisher · View at Google Scholar · View at Scopus
  71. G. Cravotto and P. Cintas, “Power ultrasound in organic synthesis: moving cavitational chemistry from academia to innovative and large-scale applications,” Chemical Society Reviews, vol. 35, no. 2, pp. 180–196, 2006. View at Publisher · View at Google Scholar · View at Scopus
  72. Y. T. Shi, C. Zhu, L. Wang et al., “Ultrarapid sonochemical synthesis of ZnO hierarchical structures: from fundamental research to high efficiencies up to 6.42% for quasi-solid dye-sensitized solar cells,” Chemistry of Materials, vol. 25, pp. 1000–1012, 2013. View at Google Scholar
  73. Z. Y. Shen, G. Chen, Q. Wang, Y. G. Yu, C. Zhou, and Y. Wang, “Sonochemistry synthesis and enhanced photocatalytic H2 production activity of nanocrystals embedded in CdS/ZnS/In2S3 microspheres,” Nanoscale, vol. 4, no. 6, pp. 2010–2017, 2012. View at Publisher · View at Google Scholar · View at Scopus
  74. Y. P. Zhu, J. Li, T. Y. Ma, Y. P. Liu, G. H. Du, and Z. Y. Yuan, “Sonochemistry-assisted synthesis and optical properties of mesoporous ZnS nanomaterials,” Journal of Materials Chemistry A, vol. 2, pp. 1093–1101, 2014. View at Google Scholar
  75. X. F. Yang, J. Chen, L. Gong, M. M. Wu, and J. C. Yu, “Cross-medal arrays of Ta-doped rutile titania,” Journal of the American Chemical Society, vol. 131, no. 34, pp. 12048–12049, 2009. View at Publisher · View at Google Scholar · View at Scopus
  76. S. Shanmugam, A. Gabashvili, D. S. Jacob, J. C. Yu, and A. Gedanken, “Synthesis and characterization of TiO2@C core-shell composite nanoparticles and evaluation of their photocatalytic activities,” Chemistry of Materials, vol. 18, no. 9, pp. 2275–2282, 2006. View at Publisher · View at Google Scholar · View at Scopus
  77. H. J. Wang, F. Q. Sun, Y. Zhang et al., “Photochemical growth of nanoporous SnO2 at the air-water interface and its high photocatalytic activity,” Journal of Materials Chemistry, vol. 20, no. 27, pp. 5641–5645, 2010. View at Publisher · View at Google Scholar · View at Scopus
  78. G.-S. Shao, F.-Y. Wang, T.-Z. Ren, Y. Liu, and Z.-Y. Yuan, “Hierarchical mesoporous phosphorus and nitrogen doped titania materials: synthesis, characterization and visible-light photocatalytic activity,” Applied Catalysis B: Environmental, vol. 92, no. 1-2, pp. 61–67, 2009. View at Publisher · View at Google Scholar · View at Scopus
  79. G.-S. Shao, X.-J. Zhang, and Z.-Y. Yuan, “Preparation and photocatalytic activity of hierarchically mesoporous-macroporous TiO2-xNx,” Applied Catalysis B: Environmental, vol. 82, no. 3-4, pp. 208–218, 2008. View at Publisher · View at Google Scholar · View at Scopus
  80. S.-W. Cao and Y.-J. Zhu, “Hierarchically nanostructured α-Fe2O3 hollow spheres: preparation, growth mechanism, photocatalytic property, and application in water treatment,” Journal of Physical Chemistry C, vol. 112, no. 16, pp. 6253–6257, 2008. View at Publisher · View at Google Scholar · View at Scopus
  81. F. Xu, P. Zhang, A. Navrotsky et al., “Hierarchically assembled porous ZnO nanoparticles: synthesis, surface energy, and photocatalytic activity,” Chemistry of Materials, vol. 19, no. 23, pp. 5680–5686, 2007. View at Publisher · View at Google Scholar · View at Scopus
  82. J. C. Yu, J. G. Yu, W. K. Ho, Z. T. Jiang, and L. Z. Zhang, “Effects of F doping on the photocatalytic activity and microstructures of nanocrystalline TiO2 powders,” Chemistry of Materials, vol. 14, no. 9, pp. 3808–3816, 2002. View at Publisher · View at Google Scholar · View at Scopus
  83. X.-J. Zhang, T.-Y. Ma, and Z.-Y. Yuan, “Titania-phosphonate hybrid porous materials: preparation, photocatalytic activity and heavy metal ion adsorption,” Journal of Materials Chemistry, vol. 18, no. 17, pp. 2003–2010, 2008. View at Publisher · View at Google Scholar · View at Scopus
  84. Z. R. Zhu, X. Y. Li, Q. D. Zhao, H. Li, Y. Shen, and G. H. Chen, “Porous “brick-like” NiFe2O4 nanocrystals loaded with Ag species towards effective degradation of toluene,” Chemical Engineering Journal, vol. 165, no. 1, pp. 64–70, 2010. View at Publisher · View at Google Scholar · View at Scopus
  85. J. Du, X. Lai, N. Yang et al., “Hierarchically ordered macro-mesoporous TiO2-graphene composite films: improved mass transfer, reduced charge recombination, and their enhanced photocatalytic activities,” ACS Nano, vol. 5, no. 1, pp. 590–596, 2011. View at Publisher · View at Google Scholar · View at Scopus
  86. M. D. Hernández-Alonso, F. Fresno, S. Suárez, and J. M. Coronado, “Development of alternative photocatalysts to TiO2: challenges and opportunities,” Energy and Environmental Science, vol. 2, no. 12, pp. 1231–1257, 2009. View at Publisher · View at Google Scholar · View at Scopus
  87. A. Fujishima and K. Honda, “Electrochemical photolysis of water at a semiconductor electrode,” Nature, vol. 238, no. 5358, pp. 37–38, 1972. View at Publisher · View at Google Scholar · View at Scopus
  88. Z. Schnepp, W. Yang, M. Antonietti, and C. Giordano, “Biotemplating of metal carbide microstructures: the magnetic leaf,” Angewandte Chemie, vol. 49, no. 37, pp. 6564–6566, 2010. View at Publisher · View at Google Scholar · View at Scopus
  89. B. Chai, T. Peng, P. Zeng, X. Zhang, and X. Liu, “Template-free hydrothermal synthesis of ZnIn2S4 floriated microsphere as an efficient photocatalyst for H2 production under visible-light irradiation,” Journal of Physical Chemistry C, vol. 115, no. 13, pp. 6149–6155, 2011. View at Publisher · View at Google Scholar · View at Scopus
  90. P. Hartmann, D.-K. Lee, B. M. Smarsly, and J. Janek, “Mesoporous TiO2: comparison of classical sol-gel and nanoparticle based photoelectrodes for the water splitting reaction,” ACS Nano, vol. 4, no. 6, pp. 3147–3154, 2010. View at Publisher · View at Google Scholar · View at Scopus
  91. S. Bag, I. U. Arachchige, and M. G. Kanatzidis, “Aerogels from metal chalcogenides and their emerging unique properties,” Journal of Materials Chemistry, vol. 18, no. 31, pp. 3628–3632, 2008. View at Publisher · View at Google Scholar · View at Scopus
  92. I. U. Arachchige and S. L. Brock, “Sol-gel assembly of CdSe nanoparticles to form porous aerogel networks,” Journal of the American Chemical Society, vol. 128, no. 24, pp. 7964–7971, 2006. View at Publisher · View at Google Scholar · View at Scopus
  93. J. Zhang, J. G. Yu, Y. M. Zhang, Q. Li, and J. R. Gong, “Visible light photocatalytic H2-production activity of CuS/ZnS porous nanosheets based on photoinduced interfacial charge transfer,” Nano Letters, vol. 11, no. 11, pp. 4774–4779, 2011. View at Publisher · View at Google Scholar · View at Scopus
  94. H.-C. Yang, H.-Y. Lin, Y.-S. Chien, J. C.-S. Wu, and H.-H. Wu, “Mesoporous TiO2/SBA-15, and Cu/TiO2/SBA-15 composite photocatalysts for photoreduction of CO2 to methanol,” Catalysis Letters, vol. 131, no. 3-4, pp. 381–387, 2009. View at Publisher · View at Google Scholar · View at Scopus
  95. J.-S. Hwang, J.-S. Chang, S.-E. Park, K. Ikeue, and M. Anpo, “Photoreduction of carbondioxide on surface functionalized nanoporous catalysts,” Topics in Catalysis, vol. 35, no. 3-4, pp. 311–319, 2005. View at Publisher · View at Google Scholar · View at Scopus
  96. Y. Li, W.-N. Wang, Z. Zhan, M.-H. Woo, C.-Y. Wu, and P. Biswas, “Photocatalytic reduction of CO2 with H2O on mesoporous silica supported Cu/TiO2 catalysts,” Applied Catalysis B: Environmental, vol. 100, no. 1-2, pp. 386–392, 2010. View at Publisher · View at Google Scholar · View at Scopus
  97. G. N. Nomikos, P. Panagiotopoulou, D. I. Kondarides, and X. E. Verykios, “Kinetic and mechanistic study of the photocatalytic reforming of methanol over Pt/TiO2 catalyst,” Applied Catalysis B: Environmental, vol. 146, pp. 249–257, 2014. View at Google Scholar
  98. N. Ulagappan and H. Frei, “Mechanistic study of CO2 photoreduction in Ti silicalite molecular sieve by FT-IR spectroscopy,” Journal of Physical Chemistry A, vol. 104, no. 33, pp. 7834–7839, 2000. View at Google Scholar · View at Scopus
  99. S. C. Roy, O. K. Varghese, M. Paulose, and C. A. Grimes, “Toward solar fuels: photocatalytic conversion of carbon dioxide to hydrocarbons,” ACS Nano, vol. 4, no. 3, pp. 1259–1278, 2010. View at Publisher · View at Google Scholar · View at Scopus
  100. H. Takeda and O. Ishitani, “Development of efficient photocatalytic systems for CO2 reduction using mononuclear and multinuclear metal complexes based on mechanistic studies,” Coordination Chemistry Reviews, vol. 254, no. 3-4, pp. 346–354, 2010. View at Publisher · View at Google Scholar · View at Scopus
  101. C. F. Meunier, J. C. Rooke, A. Léonard, H. Xie, and B.-L. Su, “Living hybrid materials capable of energy conversion and CO2 assimilation,” Chemical Communications, vol. 46, no. 22, pp. 3843–3859, 2010. View at Publisher · View at Google Scholar · View at Scopus
  102. A. Léonard, J. C. Rooke, C. F. Meunier, H. Sarmento, J.-P. Descy, and B.-L. Su, “Cyanobacteria immobilised in porous silica gels: exploring biocompatible synthesis routes for the development of photobioreactors,” Energy and Environmental Science, vol. 3, no. 3, pp. 370–377, 2010. View at Publisher · View at Google Scholar · View at Scopus
  103. A. Léonard, P. Dandoy, E. Danloy et al., “Whole-cell based hybrid materials for green energy production, environmental remediation and smart cell-therapy,” Chemical Society Reviews, vol. 40, no. 2, pp. 860–885, 2011. View at Publisher · View at Google Scholar · View at Scopus
  104. S. S. Tan, L. Zou, and E. Hu, “Photocatalytic reduction of carbon dioxide into gaseous hydrocarbon using TiO2 pellets,” Catalysis Today, vol. 115, no. 1–4, pp. 269–273, 2006. View at Publisher · View at Google Scholar · View at Scopus
  105. B. O’Regan and M. Grätzel, “A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 film,” Nature, vol. 353, pp. 737–739, 1991. View at Google Scholar
  106. J. Burschka, N. Pellet, S. J. Moon et al., “Sequential deposition as a route to high-performance perovskite-sensitized solar cells,” Nature, vol. 499, pp. 316–320, 2013. View at Google Scholar
  107. S. Rühle, M. Shalom, and A. Zaban, “Quantum-dot-sensitized solar cells,” ChemPhysChem, vol. 11, no. 11, pp. 2290–2304, 2010. View at Publisher · View at Google Scholar · View at Scopus
  108. J. T. Park, D. Y. Roh, R. Patel, E. Kim, D. Y. Ryu, and J. H. Kim, “Preparation of TiO2 spheres with hierarchical pores via grafting polymerization and sol-gel process for dye-sensitized solar cells,” Journal of Materials Chemistry, vol. 20, no. 39, pp. 8521–8530, 2010. View at Publisher · View at Google Scholar · View at Scopus
  109. D. Hwang, H. Lee, S.-Y. Jang et al., “Electrospray preparation of hierarchically-structured mesoporous TiO2 spheres for use in highly efficient dye-sensitized solar cells,” ACS Applied Materials and Interfaces, vol. 3, no. 7, pp. 2719–2725, 2011. View at Publisher · View at Google Scholar · View at Scopus
  110. H. Wang, B. Li, J. Gao et al., “SnO2 hollow nanospheres enclosed by single crystalline nanoparticles for highly efficient dye-sensitized solar cells,” CrystEngComm, vol. 14, pp. 5177–5181, 2012. View at Google Scholar
  111. Q. Zhang, C. S. Dandeneau, X. Zhou, and C. Cao, “ZnO nanostructures for dye-sensitized solar cells,” Advanced Materials, vol. 21, no. 41, pp. 4087–4108, 2009. View at Publisher · View at Google Scholar · View at Scopus
  112. T. P. Chou, Q. F. Zhang, G. E. Fryxell, and G. Z. Cao, “Hierarchically structured ZnO film for dye-sensitized solar cells with enhanced energy conversion efficiency,” Advanced Materials, vol. 19, no. 18, pp. 2588–2592, 2007. View at Publisher · View at Google Scholar · View at Scopus
  113. Q. F. Zhang, T. P. Chou, B. Russo, S. A. Jenekhe, and G. Cao, “Aggregation of ZnO nanocrystallites for high conversion efficiency in dye-sensitized solar cells,” Angewandte Chemie, vol. 47, no. 13, pp. 2402–2406, 2008. View at Publisher · View at Google Scholar · View at Scopus
  114. Q. F. Zhang, T. P. Chou, B. Russo, S. A. Jenekhe, and G. Z. Cao, “Polydisperse aggregates of ZnO nanocrystallites: a method for energy-conversion-efficiency enhancement in dye-sensitized solar cells,” Advanced Functional Materials, vol. 18, no. 11, pp. 1654–1660, 2008. View at Publisher · View at Google Scholar · View at Scopus
  115. Q. F. Zhang, C. S. Dandeneau, S. Candelaria et al., “Effects of lithium ions on dye-sensitized ZnO aggregate solar cells,” Chemistry of Materials, vol. 22, no. 8, pp. 2427–2433, 2010. View at Publisher · View at Google Scholar · View at Scopus
  116. H.-M. Cheng and W.-F. Hsieh, “High-efficiency metal-free organic-dye-sensitized solar cells with hierarchical ZnO photoelectrode,” Energy and Environmental Science, vol. 3, no. 4, pp. 442–447, 2010. View at Publisher · View at Google Scholar · View at Scopus
  117. T.-Y. Ma, Y.-S. Wei, T.-Z. Ren, L. Liu, Q. Guo, and Z.-Y. Yuan, “Hexagonal mesoporous titanium tetrasulfonates with large conjugated hybrid framework for photoelectric conversion,” ACS Applied Materials and Interfaces, vol. 2, no. 12, pp. 3563–3571, 2010. View at Publisher · View at Google Scholar · View at Scopus
  118. H. N. Kim, T. W. Kim, I. Y. Kim, and S.-J. Hwang, “Cocatalyst-free photocatalysts for efficient visible-light-induced H2 production: porous assemblies of CdS quantum dots and layered titanate nanosheets,” Advanced Functional Materials, vol. 21, no. 16, pp. 3111–3118, 2011. View at Publisher · View at Google Scholar · View at Scopus
  119. Y.-J. Shen and Y.-L. Lee, “Assembly of CdS quantum dots onto mesoscopic TiO2 films for quantum dot-sensitized solar cell applications,” Nanotechnology, vol. 19, no. 4, Article ID 045602, 2008. View at Publisher · View at Google Scholar · View at Scopus