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Journal of Nanomaterials
Volume 2014 (2014), Article ID 157269, 5 pages
http://dx.doi.org/10.1155/2014/157269
Research Article

Synthesis of Na-Doped Lithium Metatitanate and Its Absorption for Carbon Dioxide

1Key Laboratory of Nuclear Resources and Environment, East China Institute of Technology, Ministry of Education, Jiangxi 330013, China
2Department of Applied Chemistry, East China Institute of Technology, Jiangxi 344000, China

Received 3 January 2014; Revised 10 March 2014; Accepted 17 March 2014; Published 22 April 2014

Academic Editor: Shafiul Chowdhury

Copyright © 2014 Liu Zhirong 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.

Abstract

Na-doped lithium metatitanate (Na-doped Li2TiO3) absorbent was doped with Na2CO3 and lithium metatitanate (Li2TiO3) was prepared by a solid-state reaction method from mixture of TiO2 and Li2CO3. The Na-doped lithium metatitanate was characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM) and surface area. Carbon dioxide absorption on Na-doped lithium metatitanate was investigated using TG-DTA. The results reveal an increase of the CO2 absorption capacity of the Na-doped materials with respect to pure Li2TiO3. XRD patterns of the doped samples suggest a limited substitution of Li by Na atoms within the Li2TiO3 structure. The results of experimental and modeling work were summarized to better understand the relationship between the sorbent microstructure and carbon dioxide absorption kinetics.