Degradation of some typical pharmaceuticals and personal care products with copper-plating iron doped Cu₂O under visible light irradiation

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• 作者：Jing An^a ; ^{anjing@iae.ac.cn} ; Qixing Zhou^a ; ^b ; ^{zhouqx523@yahoo.com}
• 关键词：copper-plating iron ; Cu2O ; PPCPs ; degradation ; mechanism
• 刊名：Journal of Environmental Sciences
• 出版年：2012
• 期刊代码：8_10010742
• 类别：env
• 出版时间：May, 2012
• 卷：24
• 期：5
• 页码：827-833
• 文件大小：739 K

摘要

A mixture of five commonly used pharmaceuticals and personal care products (PPCPs) was degraded using a new combined catalyst under visible light irradiation. Scanning electron microscopy and X-ray diffraction analysis revealed that the combined catalyst was composed of copper-plating iron doped Cu₂O (FeCu/Cu₂O). Compared with the Fe/C inner micro-circuit, the electric currents flowing between Cu and Fe increase the speed of anodic Fe dissolution. Moreover, due to the photochemical properties, Cu₂O can accelerate the PPCPs degradation processes under the irradiation of visible light. In addition, shaking increased the dissolved oxygen concentration in the solution, which not only preconditioned the photo-catalysis reaction, but also set the stage for Fe reduction. According to the experimental results, we propose the possible reaction mechanism of the reaction.