Study on Characteristics of TiO<sub>2</sub> Pohotocatalytic Oxidation Decolorization for Dyes

欧阳荣; 江立文

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Study on Characteristics of TiO₂ Pohotocatalytic Oxidation Decolorization for Dyes

更新时间：2026-01-19

- Study on Characteristics of TiO₂ Pohotocatalytic Oxidation Decolorization for Dyes
- Issue 1, Pages: 16-19+37(2010)
- 作者机构：
  
  1. 华东交通大学土木建筑学院
  2. 吉安县规划建设局
- 作者简介：
- 基金信息：
- DOI：
  CLC： X703.1
- Published：2010
- 稿件说明：
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[1]欧阳荣,江立文.TiO_2光催化氧化对染料降解脱色行为的研究[J].能源研究与管理,2010(01):16-19+37.

欧阳荣, 江立文. Study on Characteristics of TiO₂ Pohotocatalytic Oxidation Decolorization for Dyes[J]. 2010, (1): 16-19+37.
[1]欧阳荣,江立文.TiO_2光催化氧化对染料降解脱色行为的研究[J].能源研究与管理,2010(01):16-19+37. DOI：

欧阳荣, 江立文. Study on Characteristics of TiO₂ Pohotocatalytic Oxidation Decolorization for Dyes[J]. 2010, (1): 16-19+37. DOI：

摘要

在以紫外光为光源的TiO2悬浮光催化反应体系中

以RB、AG和MG三种染料作为模型污染物

对染料光催化氧化的脱色行为进行了研究。研究结果表明:①染料在TiO2表面上的吸附是进行光催化反应的前提条件之一

而染料在TiO2表面吸附能力的大小直接影响着光催化反应效率的高低;②OHg的主要来源是由TiO2表面光生空穴进行离子反应提供的;溶解O2主要是抑制TiO2表面光生电子—空穴的复合;染料主要是通过TiO2表面光生空穴直接氧化分解的或由光生空穴产生的OHg氧化分解的。

Abstract

In TiO2 suspension photocatalytic reaction system with UV lamp radiation

characteristics of photocatalytic decolorization for dyes is investigated as model pollutions using reactive blue 4

acid red G and malachite green.The research results demonstrated that:（1） dyes absorption on TiO2 surface is one of the preconditions for the process of photocatalytic reaction

then dyes absorption efficiency is directly determined to photocatalytic reaction efficiency.（2）OHg is mainly provided by ions reaction of TiO2 surface cavity

dissolve O2 restrains mostly combination of electron cavity pairs

dyes are mainly photo-degradation by TiO2 surface cavity or OHg producing by cavity.

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Study on Characteristics of TiO2 Pohotocatalytic Oxidation Decolorization for Dyes

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Study on Characteristics of TiO₂ Pohotocatalytic Oxidation Decolorization for Dyes