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Journal of Materials
Volume 2017, Article ID 3094606, 13 pages
https://doi.org/10.1155/2017/3094606
Research Article

Well-Dispersed Nanoscale Zero-Valent Iron Supported in Macroporous Silica Foams: Synthesis, Characterization, and Performance in Cr(VI) Removal

College of Chemistry, Sichuan University, Chengdu 610064, China

Correspondence should be addressed to Jie Yang; nc.ude.ucs@gnay.j

Received 8 May 2017; Revised 4 July 2017; Accepted 30 July 2017; Published 10 September 2017

Academic Editor: Eric Guibal

Copyright © 2017 Chaoxia Zhao 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.

Supplementary Material

Figure S1: The nitrogen adsorption-desorption isotherms of MOSF and Mx-NZVI composites. The adsorption isotherms of Mb-NZVI, Ma-NZVI and MOSF are shifted by 500, 1000 and 1500 cm3⋅g−1 (STP), respectively.

Figure S2: The size-distribution histogram of NZVI nanoparticles in Mc-NZVI.

Figure S3: TEM images of (a-b) Ma-NZVI and (c-d) Mb-NZVI.

Figure S4: (a) XPS survey scan and (b) the corresponding high resolution spectra of Fe 2p for Ma-NZVI and Mb-NZVI.

Figure S5: (a) Adsorption isotherms of Mx-NZVI composites fitted to Freundlich isotherm model; (b) pseudo-second-order adsorption kinetics of Mx-NZVI composites; (c) pseudo-second-order adsorption kinetics of Mc-NZVI with different dosage; (d) pseudo-second-order adsorption kinetics of Mc-NZVI at different initial pH.

Figure S6: (a) Pseudo-first order adsorption kinetics of Mx-NZVI composites; (b) pseudo-first-order adsorption kinetics of Mc-NZVI with different dosage; (c) pseudo-first-order adsorption kinetics of Mc-NZVI at different initial pH.

Table S1: Summary of properties of Mx-NZVI composites.

Table S2: Adsorption isotherm of Mx-NZVI composites.

Table S3: Kinetic studies of Mx-NZVI composites.

  1. Supplementary Material