Al,Fe-pillared clays in catalytic decolorization of aqueous tartrazine solutions

被引：56

作者：

Bankovic, Predrag ^{[1
]}

Milutinovic-Nikolic, Aleksandra ^{[1
]}

Mojovic, Zorica ^{[1
]}

Jovic-Jovicic, Natasa ^{[1
]}

Zunic, Marija ^{[1
]}

Dondur, Vera ^{[2
]}

Jovanovic, Dusan ^{[1
]}

机构：

[1] Univ Belgrade, Inst Chem Technol & Met, Dept Catalysis & Chem Engn, Belgrade 11000, Serbia

[2] Univ Belgrade, Fac Phys Chem, Belgrade 11000, Serbia

来源：

APPLIED CLAY SCIENCE | 2012年 / 58卷

关键词：

Al; Fe-pillared clay; Catalytic wet peroxide oxidation; Tartrazine; WET PEROXIDE OXIDATION; PILLARED CLAYS; WASTE-WATER; MICROBIAL DECOLORIZATION; HYDROGEN-PEROXIDE; DYES; DEGRADATION; COPPER; IRON; PHENOL;

D O I：

10.1016/j.clay.2012.01.015

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

In this work Al,Fe-pillared clays (PILCs) were applied as heterogeneous catalysts in catalytic wet peroxide oxidation of tartrazine azo-dye in water. A series of We PILCs with different Fe3+ content were synthesized. The degree of Fe incorporation into PILCs was in accordance with the amounts of introduced Fe. The influence of Fe content and reaction temperature on the efficiency of the decolorization of tartrazine solutions was investigated. The adsorption on PILCs was almost independent on temperature and rather inefficient. The adsorption slightly increased with increasing Fe3+ content. Simultaneous application of H2O2 and the Fe-containing PILCs significantly improved dye removal. Higher Fe content led to more efficient catalytic removal of the dye. Increased temperature did not affect adsorption while it drastically increased the catalytic removal of the dye. The stability and reusability of the PILC catalysts was confirmed. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：73 / 78

页数：6

共 53 条

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