文献类型：期刊文献

英文题名：Study on the preparation and characterization of a titanium-pillared clay-supported CrCe catalyst and its application to the degradation of a low concentration of chlorobenzene

作者：Zuo, Shufeng[1];Ding, Menglin[1];Tong, Jing[1];Feng, Lucong[1];Qi, Chenze[1]

机构：[1]Shaoxing Univ, Zhejiang Key Lab Alternat Technol Fine Chem Proc, Shaoxing 312000, Peoples R China

年份：2015

卷号：105

起止页码：118

外文期刊名：APPLIED CLAY SCIENCE

收录：SCI-EXPANDED(收录号：WOS:000350187300016)、、EI(收录号：20150500462886)、Scopus(收录号：2-s2.0-84921521608)、WOS

基金：This research was supported by the Natural Science Foundation of China (No. 21203124), the Foundation of Science and Technology of the Shaoxing Bureau (No. 2012B70023), the 2013 National Innovation Training Program for College Students (No. 200310349015) and the 2013 Shaoxing College Student Technology Innovation Project (Jing Tong).

语种：英文

外文关键词：Ti-pillared clays; Transition metals; Rare earth oxides; Chlorobenzene degradation

外文摘要：In the present study, Ti-pillared clay (Ti-PILC) with a large surface area, uniform mesopores and high thermal stability was prepared and used as carder to support CrCe oxides. Performance of the catalysts in catalytic chlorobenzene degradation was investigated. Ti-PILC had a significantly larger basal space and higher specific surface area and pore volume compared with those of Na-montmorillonite. These improvements accelerated the mass transfer of the gas in the gas-solid reaction, as the gas was transferred through the bigger pores of the catalysts. The porous structure of the carrier remained stable after calcination at 550 degrees C, and the supported active constituent was evenly dispersed without aggregation, indicating that the material was a class of catalyst well suited for the catalytic degradation of chlorobenzene. Notably, CrCe(6:1)/Ti-PILC enabled the complete degradation of a low concentration of chlorobenzene at approximately 250 degrees C and displayed outstanding performance compared with other types of catalysts. (C) 2015 Elsevier B.V. All rights reserved.