Enhanced activity of iron oxide dispersed on bentonite for the catalytic degradation of organic dye under visible light

被引：31

作者：

Du, Weiping ^{[1
]}

Sun, Qiong ^{[1
]}

Lv, Xuejun ^{[1
]}

Xu, Yiming ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Chem, Hangzhou 310027, Zhejiang, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2009年 / 10卷 / 14期

关键词：

Bentonite; Iron oxide; Dye; Adsorption; Degradation; Visible light; ASSISTED DEGRADATION; HYDROGEN-PEROXIDE; ORANGE-II; FE; NANOPARTICLES; RESIN; X-3B;

D O I：

10.1016/j.catcom.2009.06.014

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：

Natural clay-supported iron oxide was prepared by deposition method, and dried at 120 degrees C. It was found that under visible light in the presence of H2O2, this catalyst was highly active for degradation of cationic (malachite and fuchsin basic) and anionic dyes (orange II and X3B) in water at pH 6.5, as compared with bare iron oxide or the clay-supported iron oxide sintered at 350 degrees C. The excellent performance of the catalyst is correlated with its high sorption capacity toward both types of dyes, thus resulting in enhanced dye degradation via a photosensitization pathway. The catalyst was characterized by XRD, nitrogen adsorption, infrared. and UV-visible spectroscopy. (c) 2009 Elsevier B.V. All rights reserved.

引用

页码：1854 / 1858

页数：5

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