Phosphine-Free, Low-Temperature Synthesis of Tetrapod-Shaped CdS and Its Hybrid with Au Nanoparticles

被引：22
作者：
Du, Yaping [1 ]
Chen, Bo [2 ,3 ]
Yin, Zongyou [2 ]
Liu, Zhengqing [1 ]
Zhang, Hua [2 ]
机构：
[1] Xi An Jiao Tong Univ, Frontier Inst Chem, Frontier Inst Sci & Technol, Coll Sci, Xian 710054, Shaanxi Provinc, Peoples R China
[2] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore
[3] Nanyang Technol Univ, Nanyang Environm & Water Res Inst, Interdisciplinary Grad Sch, Environm Chem & Mat Grp 3, Singapore 639798, Singapore
来源：
SMALL | 2014年 / 10卷 / 22期
基金：
新加坡国家研究基金会;
关键词：
CdS; tetrapods; phosphine-free; water splitting; photoelectrochemical cells; Au-CdS hybrids; SEEDED GROWTH; NANOCRYSTALS; NANORODS; NANOHETEROSTRUCTURES; HETEROSTRUCTURES; NANOSTRUCTURES; NANOCOMPOSITES; MORPHOLOGY; RODS; TIPS;
D O I：
10.1002/smll.201402756
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Tetrapod-shaped CdS colloidal nanocrystals are synthesized using a facile, phosphine-free synthesis approach at low temperature. The arm length and diameter of CdS tetrapods can be easily tuned by using different source of sulphureous precursors, i.e., sulfur powder, thioacetamide, and sodium diethyldithiocarbamate. Moreover, the growth of Au nanoparticles onto CdS to form metal-semiconductor hybrid nanocrystals is also demonstrated. The tetrapod-shaped CdS nanocrystals exhibit strong arm-diameter-dependent absorption and photoluminescence characteristics. Importantly, the as-obtained CdS tetrapods exhibit promising photocatalytic activity for the water-splitting reaction in photoelectrochemical cells.
引用
收藏
页码：4727 / 4734
页数：8
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