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Hans Journal of Nanotechnology 纳米技术, 2013, 3, 15-18 /10.12677/nat.2013.31002 Published Online February 2013 (/journal/nat.html) Aqueous Shape-Controlled Synthesis and Characterization of CdS Nanostructures* Pengfei Hu#, Bo Lu, Yanyan Lou, Min Shao, Yuliang Chu Laboratory for Microstructures, Shanghai University, Shanghai Email: #hpf-hqx@ Received: Jan. 23rd, 2013; revised: Feb. 6th, 2013; accepted: Feb. 13th, 2013 Abstract: Cadmium sulfide microcrystallines with tuning morphologies were prepared with cadmium acetate and thio- acetamide as raw materials by aqueous process under mild temperature. The sphere-like hierarchical and rod-shaped cadmium sulfide nanostructures can be modulated by employing different surfactants. The transmission electron mi- croscopy resolutions indicated that the nanorods actually are one-dimensional assemblies of smaller cadmium sulfide nanounits abiding the oriented assembly mechanism, but the cadmium sulfide spheres are the random aggregations of cadmium sulfide nanograins. We propose that the linear templating effect of surfactant PEG-400 contributes to the rod-like assembly of cadmium sulfide nanounits, while the spherical micelles of anion dodecylbenzenesulfonate induce the spherical aggregation of cadmium sulfide grains. The ultraviolet-visible absorption spectra show that the cadmium sulfide samples all had strong absorption in ultraviolet region with obvious blue shifts. The method provides economi- cally feasible route for controlled synthesis of cadmium sulfide nanocrystals, and may open a new avenue to fabricate other semiconductor nanocrystals. Keywords: Cadmium Sulfide; Aqueous; Microstructure; Shape-Controlled; Optical Property CdS 纳米结构的水相可控合成及表征* 胡鹏飞#，鲁 波，楼燕燕，邵 敏