Photocatalytic degradation of textile wastewater in presence of hydrogen peroxide: Effect of cerium doping titania

被引：59

作者：

Touati, Azza ^{[1
]}

Hammedi, Tijani ^{[1
]}

Najjar, Wahiba ^{[1
]}

Ksibi, Zouhaier ^{[1
]}

Sayadi, Sami ^{[2
]}

机构：

[1] Univ Tunis El Manar, Fac Sci Tunis, Lab Chim Mat & Catalyse LR01ES08, Tunis 2092, Tunisia

[2] Ctr Biotechnol Sfax, Lab Bioproc Environm, BP 1177, Sfax 3018, Tunisia

来源：

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY | 2016年 / 35卷

关键词：

TiO2; Ce-TiO2; Photocatalytic degradation; H2O2; Textile wastewater; DIOXIDE PHOTOCATALYSTS; ENHANCED DEGRADATION; AZO-DYES; CE; PERFORMANCE; CO; DECOLORIZATION; DECOMPOSITION; HYDROLYSIS; REACTIVITY;

D O I：

10.1016/j.jiec.2015.12.008

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Ce-TiO2 catalysts synthesized through sol-gel method were explored for textile wastewater photocatalytic degradation in presence of H2O2. Synthesized materials were characterized by X-ray diffraction, Raman spectroscopy, UV-visible diffuse reflectance spectroscopy, N-2 physisorption at 77 K and H-2-temperature programmed reduction. Suitable amount of cerium (1%) significantly inhibits the electron-hole pairs recombination and reduces the energy gap values of the materials. 1% Ce-TiO2 catalyst demonstrated superior catalytic performances permitting a 40% and 55% of TOC and color conversions, respectively. The relationship between photocatalytic activity and physicochemical properties was discussed. Environmental impact of textile wastewater was evaluated by the bioluminescence test using the LUMIStox. (C) 2016 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

引用

页码：36 / 44

页数：9

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