Plasmonic Au Nanoparticles/KCa2Nb3O10 nanosheets 0D/2D heterojunctions with enhanced photocatalytic activity towards the degradation of tetracycline hydrochloride

被引：19
|
作者：
Jiang, Deli [1 ]
Wen, Baowei [1 ]
Xu, Qing [1 ]
Gao, Menghan [1 ]
Li, Di [2 ]
Chen, Min [1 ]
机构：
[1] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Inst Energy Res, Zhenjiang 212013, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2018年 / 762卷
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Plasmonic photocatalyst; KCa2Nb3O10; nanosheets; Au; Heterojunction; Mechanism; HYDROGEN-PRODUCTION; OXIDE NANOSHEETS; ENERGY-TRANSFER; SOLAR; WATER; METAL; NANOSTRUCTURES; SURFACE; TIO2; NANOCLUSTERS;
D O I：
10.1016/j.jallcom.2018.05.178
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Exploration of an effective strategy to enhance the visible-light-driven photocatalytic activity of wide band gap metal oxide semiconductors is of great importance. In this work, plasmonic Au nanoparticles/KCa2Nb3O10 nanosheets 0D/2D heterojunctions were constructed by a facile precipitation-calcination process. In these heterojunctions, Au nanoparticles not only act a photosensitizer to harvest the visible light but also assist in the charge separation, therefore enhancing the visible light photocatalytic activity. The optimized Au/KCa2Nb3O10 0D/2D plasmonic heterojunction showed a remarkable photocatalytic activity towards the degradation of tetracycline hydrochloride. The photocatalytic activity of the optimized 2%-Au/KCNO heterojunction is 3.9 times that of bare KCa2Nb3O10. This work provides an alternative approach to improve the light utilization efficiency and photocatalytic activity of KCa2Nb3O10 semiconductor for photocatalytic degradation of organic pollutant. (C) 2018 Published by Elsevier B.V.
引用
收藏
页码：38 / 45
页数：8
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