Photo-oxidative degradation of an azo dye direct red 31 in the presence of ZnS catalyst

被引：0

作者：

Rao, A. Nageswara ^{[1
]}

Sivasankar, B. ^{[2
]}

Sadasivam, V. ^{[2
]}

机构：

[1] Sathyabama Univ, Dept Chem, Madras 600119, Tamil Nadu, India

[2] Anna Univ, Dept Chem, Madras 600025, Tamil Nadu, India

来源：

INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY | 2010年 / 49卷 / 07期

关键词：

Photochemistry; Photooxidation; Dyes; Azodyes; Direct red 31; PHOTOCATALYTIC DEGRADATION; TITANIUM-DIOXIDE; HETEROGENEOUS PHOTOCATALYSIS; PHOTODEGRADATION; OXIDATION;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photocatalytic degradation of direct red 31 on irradiation with UV light in the presence of ZnS photocatalyst has been reported. Effect of pH, weight of catalyst and concentration of dye on the degradation has been studied. A higher removal of dye is observed under mildly acidic conditions. The optimum weight of catalyst loading is found to be 3.0 g/L. The dye degradation obeys first order kinetics and is explained on the basis of Langmuir-Hinshelwood mechanism.

引用

页码：901 / 905

页数：5

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