PHOTOCATALYTICAL REDUCTION OF CR(VI) OVER ZNO POWDER

被引：85

作者：

DOMENECH, J

MUNOZ, J

机构：

[1] Departaent de Química Física, Universitat Autónoma de Barcelona, Bellaterra, Spain

来源：

ELECTROCHIMICA ACTA | 1987年 / 32卷 / 09期

关键词：

CATALYSTS - Materials - POWDERS - SUSPENSIONS - ULTRAVIOLET RADIATION - ZINC COMPOUNDS - Applications;

D O I：

10.1016/0013-4686(87)85071-5

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The photocatalytical reduction of Cr(VI) in aqueous suspensions of ZnO under uv-illumination is studied. The amount of Cr(VI) photoreduced at different times, initial Cr(VI) concentrations, pH and temperatures have been determined. Different ZnO-doped samples have been used in order to improve the yield of the Cr(VI) photoreduction. Finally, some experiments under sunlight have been performed. The results obtained in the present work show that ZnO can be used as efficient catalyst for the photoreduction of Cr(VI) in aqueous solutions even under sunlight exposure.

引用

页码：1383 / 1386

页数：4

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