Growth of Photocatalytic CdSe-Pt Nanorods and Nanonets

被引:211
作者
Elmalem, Einat [1 ,2 ]
Saunders, Aaron E. [1 ,2 ]
Costi, Ronny [1 ,2 ]
Salant, Asaf [1 ,2 ]
Banin, Uri [1 ,2 ]
机构
[1] Hebrew Univ Jerusalem, Inst Chem, IL-91904 Jerusalem, Israel
[2] Hebrew Univ Jerusalem, Ctr Nanosci & Nanotechnol, IL-91904 Jerusalem, Israel
基金
美国国家科学基金会; 以色列科学基金会;
关键词
D O I
10.1002/adma.200800044
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A hybrid Pt-CdSe nanoparticle system is prepared in aqueous media. displaying rod or nanonet structures depending on the pH. The new hybrids display morphology-dependent photocatalytic activity under visible light irradiation. Separation between photo generated charge carriers occurs at the metal/semiconductor interface (see figure), allowing redox reactions to take place at the nanoparticle surface.
引用
收藏
页码:4312 / 4317
页数:6
相关论文
共 39 条
[1]   Size-dependent dissociation pH of thiolate ligands from cadmium chalcogenide nanocrystals [J].
Aldana, J ;
Lavelle, N ;
Wang, YJ ;
Peng, XG .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2005, 127 (08) :2496-2504
[2]  
[Anonymous], 1985, STANDARD POTENTIALS
[3]  
BAO N, 2005, CHEM LETT, P318
[4]   Self-templated synthesis of nanoporous CdS nanostructures for highly efficient photocatalytic hydrogen production under visible [J].
Bao, Ningzhong ;
Shen, Liming ;
Takata, Tsuyoshi ;
Domen, Kazunari .
CHEMISTRY OF MATERIALS, 2008, 20 (01) :110-117
[5]   ARTIFICIAL PHOTOSYNTHESIS - SOLAR SPLITTING OF WATER TO HYDROGEN AND OXYGEN [J].
BARD, AJ ;
FOX, MA .
ACCOUNTS OF CHEMICAL RESEARCH, 1995, 28 (03) :141-145
[6]   Selective reactions on the tips of colloidal semiconductor nanorods [J].
Carbone, Luigi ;
Kudera, Stefan ;
Giannini, Cinzia ;
Ciccarella, Giuseppe ;
Cingolani, Roberto ;
Cozzoli, Pantaleo Davide ;
Manna, Liberato .
JOURNAL OF MATERIALS CHEMISTRY, 2006, 16 (40) :3952-3956
[7]   Improving the photoelectrochemical performance of nanostructured TiO2 films by adsorption of gold nanoparticles [J].
Chandrasekharan, N ;
Kamat, PV .
JOURNAL OF PHYSICAL CHEMISTRY B, 2000, 104 (46) :10851-10857
[8]   Visible light-induced charge retention and photocatalysis with hybrid CdSe-Au nanodumbbells [J].
Costi, Ronny ;
Saunders, Aaron E. ;
Elmalem, Einat ;
Salant, Asaf ;
Banin, Uri .
NANO LETTERS, 2008, 8 (02) :637-641
[9]   Efficient charge storage in photoexcited TiO2 nanorod-noble metal nanoparticle composite systems [J].
Cozzoli, PD ;
Curri, ML ;
Agostiano, A .
CHEMICAL COMMUNICATIONS, 2005, (25) :3186-3188
[10]   Role of metal nanoparticles in TiO2/Ag nanocomposite-based microheterogeneous photocatalysis [J].
Cozzoli, PD ;
Fanizza, E ;
Comparelli, R ;
Curri, ML ;
Agostiano, A ;
Laub, D .
JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (28) :9623-9630