title: Phosphine-free, low-temperature synthesis of tetrapod-shaped CdS and its hybrid with Au nanoparticles.
abstract: 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.
authors.affiliation: Frontier Institute of Chemistry, Frontier Institute of Science and Technology jointly with College of Science, Xi'an Jiaotong University, 99 Yanxiang Road, Yanta District, Xi'an Shaanxi Province, 710054, China.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Du
authors.forename: Bo
authors.initials: B
authors.lastname: Chen
authors.forename: Zongyou
authors.initials: Z
authors.lastname: Yin
authors.forename: Zhengqing
authors.initials: Z
authors.lastname: Liu
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D003080:Cold Temperature; D003102:Colloids; D006046:Gold / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry*; D046529:Microscopy, Electron, Transmission; D010720:Phosphines / Q000737:chemistry*; D013440:Sulfides / Q000737:chemistry*
chemical_list: D019187:Cadmium Compounds; D003102:Colloids; D010720:Phosphines; D013440:Sulfides; C034939:cadmium sulfide; D006046:Gold
keywords: Au-CdS hybrids; CdS; phosphine-free; photoelectrochemical cells; tetrapods; water splitting