Oxalic Acid Treating of ZSM-5 Zeolite for the Enhanced Photocatalytic Activity of TiO2/HZSM-5

被引：0
|
作者：
Zhang, Wenjie [1 ]
Xin, Hongliang [1 ]
Yu, Yang [1 ]
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, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
来源：
JOURNAL OF ADVANCED OXIDATION TECHNOLOGIES | 2014年 / 17卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Photocatalysis; TiO2; HZSM-5; Methyl orange; TIO2; DEGRADATION; ISOPROTURON; PHOTODEGRADATION; OXIDATION; AIR;
D O I：
10.1515/jaots-2014-0221
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：
NaZSM-5 treated by oxalic acid was used as support to prepare TiO2/HZSM-5 composite photocatalysts. The structure, phase composition, morphology, and photocatalytic activity of the photocatalysts were studied. XRD pattern of TiO2 shows typical anatase TiO2 phase with the most preferred (101) plane. Titanium is in its full oxidation state in TiO2 and 60% TiO2/3HZSM-5. The electron binding energies of Ti2p(1/2) and Ti2p(3/2) in the 60% TiO2/3HZSM-5 shift to low energy end, while the binding energies of Al and Si have very similar values in both 3HZSM-5 and 60% TiO2/3HZSM-5. The supported TiO2/3HZSM-5 shows different activity with increasing TiO2 content. The maximum degradation activity is found on 60% TiO2/3HZSM-5. Methyl orange is almost fully degraded on the composite after 2 h of irradiation, but degradation rate on the pure TiO2 is only 51.2%.
引用
收藏
页码：359 / 364
页数：6
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