Selective growth of Au nanograins on specific positions (tips, edges and facets) of Cu2O octahedrons to form Cu2O-Au hierarchical heterostructures

被引：31
|
作者：
Zhu, Han [1 ]
Du, MingLiang [1 ,2 ]
Yu, DongLiang [1 ]
Wang, Yin [3 ]
Zou, MeiLing [1 ]
Xu, CongSheng [1 ]
Fu, YaQin [1 ,2 ]
机构：
[1] Zhejiang Sci Tech Univ, Dept Mat Engn, Coll Mat & Text, Hangzhou 310018, Peoples R China
[2] Zhejiang Sci Tech Univ, Key Lab Adv Text Mat & Mfg Technol, Minist Educ, Hangzhou 310018, Peoples R China
[3] Zhejiang Univ, MOE Key Lab Macromol Synth & Functionalizat, Dept Polymer Sci & Engn, Hangzhou 310027, Peoples R China
来源：
DALTON TRANSACTIONS | 2012年 / 41卷 / 45期
基金：
中国国家自然科学基金;
关键词：
NANOPARTICLES; MICROCRYSTALS; METAL; NANOSTRUCTURES; NANOWIRES; CRYSTALS; WATER;
D O I：
10.1039/c2dt31487h
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
This communication demonstrates a novel strategy for the selective growth of Au nanograins (AuNGs) on specific positions (tips, edges and facets) of Cu2O octahedrons to form Cu2O-Au hierarchical heterostructures. The surface energy distribution of the octahedrons generally follows the order of gamma((facets)) < gamma((edges)) < gamma((tips)) and leads to the preferential growth and evolution of the heterostructures. These novel Cu2O-Au hierarchical heterostructures show fascinating degradations of methylene blue (MB), due to the suppressed electron/hole recombination phenomena and the highly efficient light harvesting.
引用
收藏
页码：13795 / 13799
页数：5
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