Facile synthesis and characterization of uniform CdS colloidal spheres

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 sphe...

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Bibliographic Details
Published inChinese chemical letters Vol. 23; no. 9; pp. 1091 - 1094
Main Author Xiu Jie Yang Xin Ping Li Xiang Tao Bai, Li Qiang Zheng
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.09.2012
Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100, China
Subjects
CdS
Colloidal spheres
Hydrothermal synthesis
Microstructure
Nanomaterials
X-射线衍射
均匀
简易合成
聚乙烯基吡咯烷酮
胶体球
表征
透射电子显微镜
Nanomaterials
Colloidal spheres
CdS
Hydrothermal synthesis
Microstructure
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Summary: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.
Bibliography: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.
11-2710/O6
Microstructure; Nanomaterials; CdS; Colloidal spheres; Hydrothermal synthesis
Xiu Jie Yang, Xin Ping Li, Xiang Tao Bai, Li Qiang Zheng Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100, China
ISSN:1001-8417
1878-5964
DOI:10.1016/j.cclet.2012.06.021