Controlled Orientation in a Bio-Inspired Assembly of Ag/AgCl/ZnO Nanostructures Enables Enhancement in Visible-Light-Induced Photocatalytic Performance

被引:67
作者
Begum, Gousia [1 ]
Manna, Joydeb [1 ]
Rana, Rohit Kumar [1 ]
机构
[1] Indian Inst Chem Technol, Inorgan & Phys Chem Div, Nanomat Lab, Hyderabad 500607, Andhra Pradesh, India
关键词
biomimetic synthesis; nanostructures; photocatalysis; self-assembly; semiconductors; AG-AT-AGCL; HIGHLY EFFICIENT; ZNO NANOSTRUCTURES; SILVER; DETOXIFICATION; NANOPARTICLES; CONTAMINANTS; DESTRUCTION; DEGRADATION; CATALYSTS;
D O I
10.1002/chem.201103760
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In a bio-inspired approach, polyamine-mediated mineralization of ZnO was explored to develop an environmentally benign methodology for synthesizing Ag/AgCl/ZnO nanostructures. The assembling properties displayed by the polyamines to create composite structures was utilized to have the nanocomponents effectively interact with each other in a way that is desirable for the application envisaged. The polyamines, which act as a mineralizing agent for ZnO nanoparticles, also facilitate the formation of Ag/AgCl within ZnO under ambient conditions. Thus synthesized Ag/AgCl/ZnO nanostructures represent a multi-heterojunction system in which the nanocomponents lead in a synergistic way to enhancement in the photocatalytic activity under visible-light irradiation.
引用
收藏
页码:6847 / 6853
页数:7
相关论文
共 41 条
[1]   Enhanced photoelectrochemical responses of ZnO films through Ga and N codoping [J].
Ahn, Kwang-Soon ;
Yan, Yanfa ;
Shet, Sudhakar ;
Deutsch, Todd ;
Turner, John ;
Al-Jassim, Mowafak .
APPLIED PHYSICS LETTERS, 2007, 91 (23)
[2]   Toxicity of Organic Fluorophores Used in Molecular Imaging: Literature Review [J].
Alford, Raphael ;
Simpson, Haley M. ;
Duberman, Josh ;
Hill, G. Craig ;
Ogawa, Mikako ;
Regino, Celeste ;
Kobayashi, Hisataka ;
Choyke, Peter L. .
MOLECULAR IMAGING, 2009, 8 (06) :341-354
[3]   A plasmonic photocatalyst consisting of sliver nanoparticles embedded in titanium dioxide [J].
Awazu, Koichi ;
Fujimaki, Makoto ;
Rockstuhl, Carsten ;
Tominaga, Junji ;
Murakami, Hirotaka ;
Ohki, Yoshimichi ;
Yoshida, Naoya ;
Watanabe, Toshiya .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (05) :1676-1680
[4]   Morphology-controlled assembly of ZnO nanostructures: A bioinspired method and visible luminescence [J].
Begum, Gousia ;
Manorama, Sunkara V. ;
Singh, Shashi ;
Rana, Rohit Kumar .
CHEMISTRY-A EUROPEAN JOURNAL, 2008, 14 (21) :6421-6427
[5]   Visible light detoxification by 2,9,16,23-tetracarboxyl phthalocyanine copper modified amorphous titania [J].
Chen, F ;
Deng, ZG ;
Li, XP ;
Zhang, JL ;
Zhao, JC .
CHEMICAL PHYSICS LETTERS, 2005, 415 (1-3) :85-88
[6]   Structural and optical properties of uniform ZnO nanosheets [J].
Chen, SJ ;
Liu, YC ;
Shao, CL ;
Mu, R ;
Lu, YM ;
Zhang, JY ;
Shen, DZ ;
Fan, XW .
ADVANCED MATERIALS, 2005, 17 (05) :586-+
[7]  
Chen X., 2008, ANGEW CHEM, V120, P5433, DOI [DOI 10.1002/ANGE.200800602, 10.1002/ange.200800602]
[8]   Visible-light-driven oxidation of organic contaminants in air with gold nanoparticle catalysts on oxide supports [J].
Chen, Xi ;
Zhu, Huai-Yong ;
Zhao, Jin-Cai ;
Zheng, Zhan-Feng ;
Gao, Xue-Ping .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (29) :5353-5356
[9]   RAMAN EFFECT IN ZINC OXIDE [J].
DAMEN, TC ;
PORTO, SPS ;
TELL, B .
PHYSICAL REVIEW, 1966, 142 (02) :570-&
[10]   Apatite-coated Ag/AgBr/TiO2 visible-light photocatalyst for destruction of bacteria [J].
Elahifard, Mohammad R. ;
Rahimnejad, Sara ;
Haghighi, Saeed ;
Gholami, Mohammad R. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (31) :9552-+