Rapid degradation of toxic toluene using novel mesoporous SiO2 doped TiO2 nanofibers

被引：31
作者：
Zhan, Sihui [1 ,2 ,3 ]
Yang, Yang [1 ,2 ]
Gao, Xichao [1 ,2 ]
Yu, Hongbing [1 ,2 ]
Yang, Shanshan [1 ,2 ]
Zhu, Dandan [1 ,2 ]
Li, Yi [3 ,4 ]
机构：
[1] Nankai Univ, Coll Environm Sci & Engn, Tianjin 300071, Peoples R China
[2] Nankai Univ, Key Lab Environm Pollut Proc & Environm Criteria, Minist Educ, Tianjin 300071, Peoples R China
[3] Univ Notre Dame, Dept Chem & Biochem, Notre Dame, IN 46556 USA
[4] Tianjin Univ, Dept Chem, Tianjin 300072, Peoples R China
来源：
CATALYSIS TODAY | 2014年 / 225卷
关键词：
Toluene; Fibrous catalyst; Doped; Degradation mechanism; LIGHT PHOTOCATALYTIC ACTIVITY; GAS-PHASE; MICROSPHERES; DECOMPOSITION; NANOMATERIALS; TEMPERATURE; FABRICATION; MECHANISMS; ADSORPTION; OXIDATION;
D O I：
10.1016/j.cattod.2013.08.018
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Toluene is a typical volatile organic compound (VOC), which is harmful to human. The novel mesoporous TiO2 composite fibers with optimal SiO2 content were fabricated via electrospinning the relevant gel precursor, and were characterized by XRD, SEM, TEM, TG-DTA, UV-vis, and BET surface analysis, respectively. Through photocatalytic degradation of gaseous toluene with these nano structured fibrous catalysts, it has shown that 10% silica doped TiO2 nanofibers displayed the highest degradation rate among a lot of titania fibers with different silica content, and whose reaction rate is two-fold enhancement than Degussa P25. What is more, it is easy to fix and recycle nanofibrous catalysts. Furthermore, the degradation pathway of cleaning toluene has been verified based on GC-MS detection. Crown Copyright (C) 2013 Published by Elsevier B.V. All rights reserved.
引用
收藏
页码：10 / 17
页数：8
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