Synthesis and visible-light driven photocatalytic performance of metallic ag-loaded ceo2 with x-architecture

被引：0

作者：

Zheng X. ^{[1
]}

Huang M. ^{[1
]}

Wen J. ^{[2
]}

You Y. ^{[1
]}

Liu Y. ^{[1
]}

Fu X. ^{[1
]}

机构：

[1] Laboratory of Technology and Engineering Application of Functional Nanomaterials, College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang

[2] Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining

来源：

Fu, Xiaojin (fu-xj2007@163.com) | 2018年 / Chinese Ceramic Society卷 / 46期

关键词：

Ag-loading; Degradation; Photocatalytic activity; X-like cerium oxide;

D O I：

10.14062/j.issn.0454-5648.2018.04.18

中图分类号：

学科分类号：

摘要：

X-like CeO2 (X-CeO2) was synthesized by a hydrothermal route using cerous chloride (CeCl3) and urea (CO(NH2)2) as raw materials. The supported catalyst Ag/X-CeO2 loaded with Ag was prepared via a photo-deposition approach. The parameter effects for X-CeO2 and Ag/X-CeO2 preparation on the photocatalytic performance in degradation of rhodamine (RhB) under visible light irradiation were investigated, respectively. The X-structured CeO2 sample with the length of 20 μm and the width of 4 μm was generated at Ce3+/urea moral ratio of 1:6, Ce3+/polyvinylpyrrolidone (PVP) mass ratio of 1:3, reaction temperature of 160 ℃, and reaction time of 60 min. The X-CeO2 sample loaded with metallic Ag can enhance the photocatalytic performance in degradation of RhB under visible light region. The 8-Ag/CeO2 sample with Ag loading content of 8% exhibits the excellent photocatalytic activity, and slightly deactivates after five cycles. This is ascribed to the synergetic effect of plasma resonance combined with redox couple of Ce4+/Ce3+, which can improve the effusion rate of photoexcited electrons and effectively facilitate the separation of photo-induced electron-hole pairs. ©2018, Editorial Department of Journal of the Chinese Ceramic Society. All right reserved.

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页码：580 / 589

页数：9

共 25 条

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