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

共 15 条

[1] KINETIC-STUDIES IN HETEROGENEOUS PHOTOCATALYSIS .1. PHOTOCATALYTIC DEGRADATION OF CHLORINATED PHENOLS IN AERATED AQUEOUS-SOLUTIONS OVER TIO2 SUPPORTED ON A GLASS MATRIX
ALEKABI, H
SERPONE, N
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (20) : 5726 - 5731
[2] Dynamics of oxidant addition as a parameter in the modelling of dye mineralization (Orange II) via advanced oxidation technologies
Bandara, J
Nadtochenko, V
Kiwi, J
Pulgarin, C
[J]. WATER SCIENCE AND TECHNOLOGY, 1997, 35 (04) : 87 - 93
[3] Wet oxidation of high-concentration reactive dyes
Chen, GH
Lei, LC
Yue, PL
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (05) : 1837 - 1843
[4] KINETICS OF PHOTODECOLORIZATION OF METHYL-ORANGE USING TITANIUM-DIOXIDE AS CATALYST
CHEN, LC
CHOU, TC
[J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1993, 32 (07) : 1520 - 1527
[5] HETEROGENEOUS PHOTOCATALYSIS
FOX, MA
DULAY, MT
[J]. CHEMICAL REVIEWS, 1993, 93 (01) : 341 - 357
[6] Studies on photodegradation of two commercial dyes in aqueous phase using different photocatalysts
Kansal, S. K.
Singh, M.
Sud, D.
[J]. JOURNAL OF HAZARDOUS MATERIALS, 2007, 141 (03) : 581 - 590
[7] Ozonation of azo dyes
Liakou, S
Pavlou, S
Lyberatos, G
[J]. WATER SCIENCE AND TECHNOLOGY, 1997, 35 (04) : 279 - 286
[8] ZNO-CATALYZED PHOTODEGRADATION OF KRAFT BLACK LIQUOR
MANSILLA, HD
VILLASENOR, J
MATURANA, G
BAEZA, J
FREER, J
DURAN, N
[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1994, 78 (03) : 267 - 273
[9] PHOTOOXIDATION OF ORGANIC IMPURITIES IN WATER USING THIN-FILMS OF TITANIUM-DIOXIDE
MATTHEWS, RW
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1987, 91 (12) : 3328 - 3333
[10] MENGYUE Z, 1995, J CHEM TECHNOL BIOT, V64, P283

← 1 2 →