Preparation of immobilized Cu2O using microwave irradiation and its catalytic activity for bisphenol A: comparisons of Cu2O/H2O2 and visible-light/Cu2O/H2O2 systems

被引：14

作者：

Kuo, C. Y. ^{[1
]}

Wu, C. H. ^{[2
]}

Wu, J. T. ^{[2
]}

Chen, Y. C. ^{[1
]}

机构：

[1] Natl Yunlin Univ Sci & Technol, Dept Environm & Safety Engn, Douliu City, Taiwan

[2] Natl Kaohsiung Univ Appl Sci, Dept Chem & Mat Engn, Kaohsiung 807, Taiwan

来源：

WATER SCIENCE AND TECHNOLOGY | 2014年 / 70卷 / 08期

关键词：

bisphenol A; Cu2O; H2O2; visible-light; Fenton-like; photo-Fenton-like; PHOTOCATALYTIC DEGRADATION; HYDROGEN-PEROXIDE; AQUEOUS-SOLUTION; LIGHT; WATER; PHOTODEGRADATION; DECOLORIZATION; OXYGEN; TIO2;

D O I：

10.2166/wst.2014.373

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

This study produced immobilized Cu2O via microwave irradiation. The surface properties of Cu2O were assessed by X-ray diffraction, scanning electron microscopy, and UV-vis spectroscopy. The catalytic activity of the generated Cu2O was examined for bisphenol (BPA) degradation in Cu2O/H2O2 and visible-light/Cu2O/H2O2 systems under various H2O2 concentrations. Cu2O can decompose H2O2 to generate radicals, similar to the Fenton-like process. The BPA degradation rate followed pseudo-first-order kinetics. The optimal H2O2 concentration was 30 mM and the BPA degradation rate under 30 mM H2O2 in the Cu2O/H2O2 and visible-light/Cu2O/H2O2 systems was 1.43 and 2.69 h(-1), respectively. The original Cu2O partly oxidized into CuO in the visible-light/Cu2O/H2O2 system and the BPA degradation percentage declined to 51% from 100% after the fifth cycle.

引用

页码：1428 / 1433

页数：6

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