STUDY ON TIO2-MEDIATED PHOTOCATALYTIC DEGRADATION OF METHYLENE-BLUE

被引：274

作者：

LAKSHMI, S

RENGANATHAN, R

FUJITA, S

机构：

[1] BHARATHIDASAN UNIV, DEPT CHEM, Tiruchirappalli 620024, TAMIL NADU, INDIA

[2] UNIV OSAKA PREFECTURE, ADV SCI & TECHNOL RES INST, SAKAI, OSAKA 593, JAPAN

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1995年 / 88卷 / 2-3期

关键词：

TIO2; PHOTOCATALYSIS; METHYLENE BLUE;

D O I：

10.1016/1010-6030(94)04030-6

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：

The degradation (oxidation) of methylene blue assisted by TiO2 photocatalysis (with an irradiation wavelength of 365 nm) was investigated in aqueous suspension. The rate constants for this heterogeneous photocatalysis were evaluated as a function of the concentration of the dye, the amount of TiO2 and the pH. The reaction is found to conform to a Langmuir adsorption isotherm and the rate vs. pH profile exhibits a linear increase with pH in acidic solutions with a maximum at around pH 6.9.

引用

页码：163 / 167

页数：5

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