Catalytic oxidation of VOCs over Al- and Fe-pillared montmorillonite

被引：57
作者：
Li, Dan [1 ]
Li, Chunshan [1 ]
Suzuki, Kenzi [2 ]
机构：
[1] Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Beijing 100190, Peoples R China
[2] Nagoya Univ, EcoTopia Sci Inst, Nagoya, Aichi 4648603, Japan
来源：
APPLIED CLAY SCIENCE | 2013年 / 77-78卷
基金：
中国国家自然科学基金; 日本学术振兴会;
关键词：
VOCs; Deep oxidation; Al; Fe-pillared montmorillonite; PHASE DEEP OXIDATION; POLYVINYL-ALCOHOL; SURFACE-ACIDITY; CHLORINATED HYDROCARBONS; COMBUSTION; ALUMINA; CLAY; BENTONITE; POROSITY; AREA;
D O I：
10.1016/j.clay.2013.02.027
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Al- and Fe-pillared montmorillonite (Al- and Fe-PILCs) were prepared and examined as catalysts in the deep oxidation of toluene and chlorobenzene. The catalysts before and after reaction were characterized by X-ray powder diffraction, N-2 adsorption, scanning electron microscopy, and energy dispersive X-ray spectrometer. Results show that Al- and Fe-PILCs with layer structures increase the surface area. For the catalytic oxidation of volatile organic compounds (VOCs), Fe-PILCs exhibit higher performance than fresh montmorillonite and Al-PILCs. Higher concentration of Fe also resulted in higher catalytic activity. Fe-PILCs also exhibited higher stability than Al-PILCs. Even at a low temperature (100 degrees C), Fe-PILCs still exhibited certain activity. Lifetime evaluation results show that the activity of Fe-PILC (3) did not vary after a 96-hour reaction. BET and XRD results indicate that these pillared catalysts have very stable structures even after prolonged reaction. Hence, Fe-PILCs are potential materials for VOC decontamination. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：56 / 60
页数：5
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