ZnO-Mediated Photocatalytic Degradation of Benzopurpurine BP4B in Aqueous Solution

被引：5

作者：

Nadjia, Laouedj ^{[2
]}

Abdelkader, Elaziouti ^{[1
]}

Ahmed, Bekka ^{[1
]}

机构：

[1] Univ Sci & Technol Oran, Dept Ind Chem, Fac Sci, LCPCE Lab, Oran 31000, Algeria

[2] DR Moulay Tahar Univ, Saida, Algeria

来源：

FIBERS AND POLYMERS | 2012年 / 13卷 / 03期

关键词：

Photocatalytic activity; Semiconductors; Azo dye; Langmuir-Hinshelwood (L-H); AZO DYES; ORANGE;

D O I：

10.1007/s12221-012-0303-9

中图分类号：

TB3 [工程材料学]; TS1 [纺织工业、染整工业];

学科分类号：

0805 ; 080502 ; 0821 ;

摘要：

The photocatalytic degradation of a commercial azo dye Benzopurpurine 4B (BP4B) in aqueous solution was investigated under UV-A light at different operating conditions, including irradiation time, pH solution, initial dye concentration, amount of catalyst, light intensity as well as band gap of other semiconductor groups by UV-spectrophotometric monitoring. The highest decomposition efficiency was obtained at pH 8 as a result of 97.24 % degradation of BP4B for 80 min of irradiation time. Photodecomposition reaction of BP4B dye was correlated with pseudo-first-order kinetic model. The degradation data of BP4B dye were satisfactory described by Langmuir-Hinshelwood (L-H) mechanism.

引用

页码：303 / 312

页数：10

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