Effect of Cd2+ Concentration on the CdS Crystallites Prepared by Microwave Hydrothermal Process
Cadmium sulphide (CdS) crystallites were successfully prepared by a microwave hydrothermal (M-H) process using cadmium chloride (CdCl2·H2O) and sodium thiosulfate (Na2S2O3·5H2O) as source material with different Cd2+ concentration.The phase,composition,morphology and optical property of the obtained crystallites were characterized by X-ray diffraction (XRD),field-emission scanning electron microscopy (FE-SEM),transmission electron microscopy (TEM) and ultraviolet-visible spectrophotometer (UV-Vis).Results show that the crystalline structure of the prepared CdS crystallites changes regularly with the increase of Cd2+ concentration and the corresponding morphology of CdS crystallites transforms from tetrahedron to quasi-sphere.The quasi-spherical CdS is derived from the nanoparticles-assembly behavior.And with the increase of Cd2+ concentration,the decrease in CdS crystallite size is observed.Obvious blue-shift is detected in the UV-Vis absorption when Cd2+ concentration reaches 0.60 mol/L.
Microwave hydrothermal Cd2+ molarity CdS Morphology
Huang Jian-feng Zhang Qin-feng Hu Bao-yun Cao Li-yun Wu Jian-peng
Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education,Shaan School of Material Science and Engineering,Tongji University,Shanghai 201804,China
国际会议
The Seventh China International Conference on High-Performance Ceramics (第七届先进陶瓷国际研讨会(CICC-7))
厦门
英文
203-206
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）