Facile synthesis and characterization of uniform CdS colloidal spheres

作     者：Xiu Jie Yang Xin Ping Li Xiang Tao Bai Li Qiang Zheng 

作者机构：Key Laboratory of Colloid and Interface Chemistry of Ministry of EducationShandong UniversityChina Jinan 250100 

出 版 物：《Chinese Chemical Letters》 (中国化学快报（英文版）)

年 卷 期：2012年第23卷第9期

页      面：1091-1094页

核心收录：

学科分类：081702[工学-化学工艺] 07[理学] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070202[理学-粒子物理与原子核物理] 0702[理学-物理学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.50972080 and 91127017) the National Basic Research Program(No.2009CB930101) the Key Laboratory of Photochemical Conversion and Optoelectronic Materials,TIPC,CAS 

主　　题：Microstructure Nanomaterials CdS Colloidal spheres Hydrothermal synthesis 

摘      要：Uniform CdS colloidal spheres have been successfully synthesized via a simple hydrothermal method. X-ray diffraction （XRD） analyses indicate that the products exhibit a hexagonal structure. Scanning electron （SEM） and transmission electron microscopy （TEM） are used to characterize CdS colloidal spheres. The final size of the spheres may be selected from a range of 71± 2 nm to approximately 181 ± 5 nm by changing the amount of polyvinylpyrrolidone （PVP） and hexamethylenetetramine （HMT）. The CdS colloidal spheres are not obtained in the absence of either of the capping agents. A synergistic effect between HMT and PVP is proposed to be crucial for the formation of colloidal spheres.