TiO2 sensitized photomineralization kinetics of phthalic anhydride

被引：3

作者：

Inel, Y ^{[1
]}

Okte, AN ^{[1
]}

机构：

[1] Bogazici Univ, Dept Chem, TR-80815 Istanbul, Turkey

来源：

CHEMOSPHERE | 1998年 / 36卷 / 14期

关键词：

photomineralization; TiO2; phthalic anhydride; kinetic; CO2;

D O I：

10.1016/S0045-6535(98)00005-8

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The photomineralization of phthalic anhydride (PA) in aqueous solutions over TiO2 particles has been investigated under UV-illumination, and then kinetics of CO2 generation have been followed. Effects of the aqueous suspension pH, PA concentration, temperature, irradiation time, and light intensity are examined. A correction term, alpha(T), the decrease in the solubility of CO2 with increasing temperature, is taken into account. The activation energy is found to be 3.19 kJ/mol. A quantum yield of 0.22 for CO2 formation is also calculated. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2969 / 2975

页数：7

共 5 条

[1] Photocatalytic degradation of malonic acid in aqueous suspensions of titanium dioxide: An initial kinetic investigation of CO2 photogeneration [J].