Photocatalytic decolourization of indigo carmine on 1,10-phenanthrolinium intercalated bentonite under UV-B and solar irradiation

被引：21

作者：

Bentouami, Abdelhadi ^{[1
,2
]}

Ouali, Mohand Said ^{[2
]}

De Menorval, Louis-Charles ^{[3
]}

机构：

[1] Univ Sci & Technol Oran M Boudiaf, Fac Sci, Dept Chim, Oran, Algeria

[2] Univ Mostaganem, Lab Valorisat Mat, Mostaganem, Algeria

[3] Univ Montpellier 2, ICG AIME UMR 5253, F-34095 Montpellier 05, France

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2010年 / 212卷 / 2-3期

关键词：

Bentonite; Solar irradiation; Photo-decolourization; Indigo carmine; AZO DYES; TEXTILE DYE; WASTE-WATER; NANOCRYSTALLINE TIO2; AQUEOUS-SOLUTIONS; PILLARED CLAYS; DEGRADATION; ADSORPTION; OXIDATION; DECOLORIZATION;

D O I：

10.1016/j.jphotochem.2010.04.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In the present work, organophilic clay was prepared and characterized by XRD, FT-IR, TGA,C-13 MAS NMR and UV-vis DRS. The obtained material was investigated as photocatalyst on photo-decolourization of indigo carmine under UV-B and solar irradiation. The decolourization capacity of the obtained material against indigo carmine was very low. Besides, the kinetic photo-decolourization data under UV-B and solar irradiation fitted well the pseudo-first order and Langmuir-Hinshelwood kinetic models. The photodecolourization rate was found better under solar than UV-B irradiation. A total colour removal was obtained at natural pH after 160 min of solar irradiation of a 10 mg L-1 indigo carmine solution. The prepared material was used four times with practically the same decolourization efficiency. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：101 / 106

页数：6

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