负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水

孙剑辉; 王永奎; 董淑英; 刘浩

环境工程学报

, , ,

孙剑辉, 王永奎, 董淑英, 刘浩. 负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水[J]. 环境工程学报, 2009, 3(1): 77-80.

引用本文:

孙剑辉, 王永奎, 董淑英, 刘浩. 负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水[J]. 环境工程学报, 2009, 3(1): 77-80.

Sun Jianhui, Wang Yongkui, Dong Shuying, Liu Hao. Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst[J]. Chinese Journal of Environmental Engineering, 2009, 3(1): 77-80.

Citation:

Sun Jianhui, Wang Yongkui, Dong Shuying, Liu Hao. Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst[J]. Chinese Journal of Environmental Engineering, 2009, 3(1): 77-80.

负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水

1.
河南师范大学化学与环境科学学院，河南省环境污染控制重点实验室, 新乡 453007
2.
新乡市环境保护科学设计研究院，新乡 453000
基金项目:
河南省重点科技攻关项目（0523032200）
中图分类号: X703.1

Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst

1.
Henan Key Laboratory for Environmental Pollution Control,College of Chemistry and Environmental Science, Henan Normal University， Xinxiang 453007
2.
Xinxiang Environmental Protection Science Institute,Xinxiang 453000
Fund Project:

摘要: 采用溶胶-凝胶-浸渍-焙烧法制备了负载型纳米复合半导体WO3-TiO2/AC光催化剂，以偶氮染料刚果红为目标降解物，通过正交实验优化了刚果红废水的降解条件，并对其光催化动力学进行了探讨。结果表明，刚果红废水的最佳降解条件为：催化剂投加量10 g/L，pH=7，H2O2用量为3.5 mL/L。在最佳条件下，当刚果红废水起始浓度为40 mg/L时，反应120 min后，刚果红溶液的去除率可达95.21%，较相同条件下TiO2/AC对刚果红染料的降解率提高了19.57％。光催化剂对刚果红的光催化降解符合Langmuir-Hinshelwood（L-H）模型。
- WO3-TiO2/AC /
- 刚果红 /
- 降解率 /
- 正交实验
Abstract: Supported nanosized composite semiconductor WO3-TiO2/AC photocatalyst was prepared by Sol-Gel-Dipping-calcination method. The photoactivity of it was tested by the degradation of azo dye Congo Red. The optimal conditions of the Congo Red degradation were obtained through orthogonal test and the photodegradation kinetics was discussed. The results showed that the optimal conditions of the Congo Red degradation were: the amount of photocatalyst 10 g/L，pH 7，H2O2 3.5 mL/L. Under these conditions, the degradation rate was 95.21% when the initial concentration was 40 mg/L irradiated by the high-pressure mercury-vapour lamp for 2 h, having improved 19.57% compared with the TiO2/AC photocatalyst. The photodegradation of Congo Red by the WO3-TiO2/AC photocatalyst obeys the L-H model.
- WO3-TiO2/AC /
- Congo Red /
- degradation rate /
- orthogonal test

点击查看大图

计量

文章访问数: 1822
HTML全文浏览数: 1010
PDF下载数: 928
施引文献: 0

孙剑辉, 王永奎, 董淑英, 刘浩. 负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水[J]. 环境工程学报, 2009, 3(1): 77-80.

引用本文:

孙剑辉, 王永奎, 董淑英, 刘浩. 负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水[J]. 环境工程学报, 2009, 3(1): 77-80.

Citation:

负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水

1. 河南师范大学化学与环境科学学院，河南省环境污染控制重点实验室, 新乡 453007
2. 新乡市环境保护科学设计研究院，新乡 453000

收稿日期: 2008-06-04

基金项目:

河南省重点科技攻关项目（0523032200）

关键词:

摘要: 采用溶胶-凝胶-浸渍-焙烧法制备了负载型纳米复合半导体WO3-TiO2/AC光催化剂，以偶氮染料刚果红为目标降解物，通过正交实验优化了刚果红废水的降解条件，并对其光催化动力学进行了探讨。结果表明，刚果红废水的最佳降解条件为：催化剂投加量10 g/L，pH=7，H2O2用量为3.5 mL/L。在最佳条件下，当刚果红废水起始浓度为40 mg/L时，反应120 min后，刚果红溶液的去除率可达95.21%，较相同条件下TiO2/AC对刚果红染料的降解率提高了19.57％。光催化剂对刚果红的光催化降解符合Langmuir-Hinshelwood（L-H）模型。

English Abstract

Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst

1. Henan Key Laboratory for Environmental Pollution Control,College of Chemistry and Environmental Science, Henan Normal University， Xinxiang 453007
2. Xinxiang Environmental Protection Science Institute,Xinxiang 453000

Received Date: 2008-06-04

Fund Project:

Keywords:

Abstract: Supported nanosized composite semiconductor WO3-TiO2/AC photocatalyst was prepared by Sol-Gel-Dipping-calcination method. The photoactivity of it was tested by the degradation of azo dye Congo Red. The optimal conditions of the Congo Red degradation were obtained through orthogonal test and the photodegradation kinetics was discussed. The results showed that the optimal conditions of the Congo Red degradation were: the amount of photocatalyst 10 g/L，pH 7，H2O2 3.5 mL/L. Under these conditions, the degradation rate was 95.21% when the initial concentration was 40 mg/L irradiated by the high-pressure mercury-vapour lamp for 2 h, having improved 19.57% compared with the TiO2/AC photocatalyst. The photodegradation of Congo Red by the WO3-TiO2/AC photocatalyst obeys the L-H model.

全文HTML

参考文献 (0)

下载: 全尺寸图片幻灯片

返回文章

用微信扫码二维码

分享至好友和朋友圈

负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水

Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst

计量

出版历程

负载型纳米复合半导体WO3-TiO2/AC光催化降解刚果红废水

English Abstract

Photodegradation of Congo Red solution by supported nano-sized composite semiconductor WO3-TiO2/AC photocatalyst

全文HTML

目录