Synthesis and characterization of highly efficient and stable Pr6O11/Ag3PO4/Pt ternary hybrid structure

被引：19
作者：
Deng, Jiatao [1 ]
Liu, Lin [1 ]
Niu, Tongjun [1 ]
Sun, Xiaosong [1 ]
机构：
[1] Sichuan Univ, Sch Mat Sci & Engn, 29 Wangjiang Rd, Chengdu 610064, Sichuan, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2017年 / 403卷
关键词：
Efficiency; Stability; Visible-light; Photocatalyst; RhB; Pr6O11/Ag3PO4/Pt; ENHANCED PHOTOCATALYTIC ACTIVITY; ASSISTED SYNTHESIS; AG3PO4; NANOPARTICLES; PRASEODYMIUM OXIDE; STABILITY; FABRICATION; HETEROSTRUCTURES; HETEROJUNCTION; PERFORMANCE; COMPOSITES;
D O I：
10.1016/j.apsusc.2017.01.257
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：
Ag3PO4 is an excellent photocatalyst with high efficiency and quantum yield, but suffers from the fast recombination of photogenerated electron-hole pairs and photo-corrosion. Hereby, the highly efficient and stable visible-light-driven Pr6O11/Ag3PO4/Pt photocatalyst were prepared via a three-step wet chemical approach. The as-prepared Pr6O11/Ag3PO4/Pt composite was characterized by X-ray diffraction, US-vis diffuse reflectance spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, photoluminescence spectra and transient photocurrent as well. Comparing with single Pr6O11 or Ag3PO4, the prepared Pr6O11/Ag3PO4/Pt composite exhibited much higher photocatalytic activity and stability for the degradation of Rhodamine B under visible light irradiation (>420 nm). The enhanced photocatalytic performance of Pr6O11/Ag3PO4/Pt composite has been attributed to the efficient separation of photo-generated electron-hole pairs through a scheme system composed of Pr6O11, Ag3PO4 and Pt. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：531 / 539
页数：9
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