Preparation of Ag@AgI-intercalated K4Nb6O17 composite and enhanced photocatalytic degradation of Rhodamine B under visible light

被引：24

作者：

Cui, Wenquan ^{[1
]}

Wang, Huan ^{[1
]}

Liang, Yinghua ^{[1
]}

Liu, Li ^{[1
]}

Han, Bingxu ^{[1
]}

机构：

[1] Hebei United Univ, Coll Chem Engn, Tangshan 063009, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2013年 / 36卷

基金：

中国国家自然科学基金;

关键词：

Ag@AgI nanoparticles; Intercalation; K4Nb6O17; Plasmonic photocatalysis; AGI/TIO2;

D O I：

10.1016/j.catcom.2013.03.011

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：

In this study, a novel plasmonic photocatalyst, Ag@AgI intercalated layered niobate, was synthesized via a microwave-assisted ion-exchange method. The composite materials prepared were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM), X-ray fluorescence spectrometry (XRF), Brunauer-Emmett-Teller (BET) and ultraviolet-visible diffuse reflection spectra (UV-vis). The as-prepared plasmonic photocatalyst exhibited an enhanced and stable photocatalytic performance for the degradation of Rhodamine B (RhB) and up to 83% of RhB was degraded in 40 min under visible light irradiation. The mechanism of separation of the photo-generated electrons and holes at the K4Nb6O17/Ag@AgI composite was discussed. (c) 2013 Elsevier B.V. All rights reserved.

引用

页码：71 / 74

页数：4

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