Immobilization of TiO2 on pumice stone for the photocatalytic degradation of dyes and dye industry pollutants

被引：107

作者：

Rao, KVS

Rachel, A

Subrahmanyam, M

Boule, P ^{[1
]}

机构：

[1] Univ Clermont Ferrand, Photochim Mol & Macromol Lab, CNRS, UMR 6505, F-63177 Clermont Ferrand, France

[2] Indian Inst Chem Technol, Catalysis & Phys Chem Div, Hyderabad 500007, Andhra Pradesh, India

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2003年 / 46卷 / 01期

关键词：

photocatalysis; TiO2; pumice stone; 3-nitrobenzenesulfonic acid; acid orange-7; wastewater;

D O I：

10.1016/S0926-3373(03)00199-1

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：

An easy method is proposed to immobilize TiO2 for photocatalytic transformations of organic pollutants in aqueous solution. It consists of impregnation of pumice stone pellets with commercially available TiO2. Pumice stone is a soft material, but this disadvantage can be eliminated by fixing pellets on a hard surface (cement or polycarbonate) and using a thin-film fixed bed reactor. Examples of application are given with 3-nitrobenzenesulfonic acid (3-NBSA), Acid Orange-7 (AO-7, a dye) and real wastewaters collected after biological treatment. (C) 2003 Elsevier B.V. All rights reserved.

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页码：77 / 85

页数：9

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