Photocatalytic Activity of TiO2 Coated on HZSM-5 Prepared by Oxalic Acid Treatment

被引：0

作者：

Zhang, Wenjie ^{[1
]}

Chen, Jinlei ^{[1
,2
]}

He, Hongbo ^{[2
]}

机构：

[1] Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110159, Peoples R China

[2] Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China

来源：

ADVANCED RESEARCH ON ENGINEERING MATERIALS, ENERGY, MANAGEMENT AND CONTROL, PTS 1 AND 2 | 2012年 / 424-425卷

关键词：

TiO2; Photocatalysis; HZSM-5; Oxalic acid; SOL-GEL; FILMS;

D O I：

10.4028/www.scientific.net/AMR.424-425.633

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Zeolite HZSM-5 was pre-treated by oxalic acid and used as support for TiO2 film prepared by sol-gel method. Decoloration rates increased with TiO2 concentration both for pure TiO2 and TiO2/HZSM-5. Meanwhile, the total decoloration rate on TiO2/HZSM-5 is much higher than using pure TiO2 on all TiO2 concentrations. Methyl orange degradation on TiO2/HZSM-5 reached its maximum value at TiO2 concentration of 600 mg/l. After 120 min of irradiation, decoloration rate on TiO2/HZSM-5 was near 100%, compared with 50% decoloration on pure TiO2. Photocatalytic degradation of methyl orange on both TiO2/HZSM-5 and TiO2 follows the equation of first order reaction. Kinetic constant on TiO2/HZSM-5 is K-1=0.02663 min(-1), which is much higher than that on pure TiO2, k(2)=0.010154 min(-1).

引用

页码：633 / +

页数：2

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