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
收藏
页码：71 / 74
页数：4
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共 14 条
  • [1] Preparation, characterization and visible-light photocatalytic activity of AgI/AgCl/TiO2
    Cao, Jing
    Xu, Benyan
    Luo, Bangde
    Lin, Haili
    Chen, Shifu
    [J]. APPLIED SURFACE SCIENCE, 2011, 257 (16) : 7083 - 7089
  • [2] Microwave-assisted synthesis of CdS intercalated K4Nb6O17 and its photocatalytic activity for hydrogen production
    Cui, Wenquan
    Liu, Yanfei
    Liu, Li
    Hu, Jinshan
    Liang, Yinghua
    [J]. APPLIED CATALYSIS A-GENERAL, 2012, 417 : 111 - 118
  • [3] Some interesting properties of metals confined in time and nanometer space of different shapes
    El-Sayed, MA
    [J]. ACCOUNTS OF CHEMICAL RESEARCH, 2001, 34 (04) : 257 - 264
  • [4] Apatite-coated Ag/AgBr/TiO2 visible-light photocatalyst for destruction of bacteria
    Elahifard, Mohammad R.
    Rahimnejad, Sara
    Haghighi, Saeed
    Gholami, Mohammad R.
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (31) : 9552 - +
  • [5] Photocatalytic degradation of pathogenic bacteria with AgI/TiO2 under visible light irradiation
    Hu, Chun
    Guo, Jian
    Qu, Jiuhui
    Hu, Xuexiang
    [J]. LANGMUIR, 2007, 23 (09) : 4982 - 4987
  • [6] Visible-light-induced photocatalytic degradation of azodyes in aqueous AgI/TiO2 dispersion
    Hu, Chun
    Hu, Xuexiang
    Wang, Liusuo
    Qu, Jiuhui
    Wang, Aimin
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2006, 40 (24) : 7903 - 7907
  • [7] Plasmon-Induced Photodegradation of Toxic Pollutants with Ag-Agl/Al2O3 under Visible-Light Irradiation
    Hu, Chun
    Peng, Tianwei
    Hu, Xuexiang
    Nie, Yulun
    Zhou, Xuefeng
    Qu, Jiuhui
    He, Hong
    [J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2010, 132 (02) : 857 - 862
  • [8] Ag-AgCl/WO3 hollow sphere with flower-like structure and superior visible photocatalytic activity
    Ma, Bowen
    Guo, Jianfeng
    Dai, Wei-Lin
    Fan, Kangnian
    [J]. APPLIED CATALYSIS B-ENVIRONMENTAL, 2012, 123 : 193 - 199
  • [9] Photoinduced electron transfer in nanostructured assemblies of layered semiconducting oxide and methylviologen: Effect of the location of acceptor molecules
    Nakato, Teruyuki
    Edakubo, Hitomi
    Shimomura, Takeshi
    [J]. MICROPOROUS AND MESOPOROUS MATERIALS, 2009, 123 (1-3) : 280 - 288
  • [10] All-solid-state Z-scheme in CdS-Au-TiO2 three-component nanojunction system
    Tada, Hiroaki
    Mitsui, Tomohiro
    Kiyonaga, Tomokazu
    Akita, Tomoki
    Tanaka, Koji
    [J]. NATURE MATERIALS, 2006, 5 (10) : 782 - 786
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