Sonochemical Synthesis of Core/Shell Structured CdS/TiO

武汉理工大学学报-材料科学版(英文版), 2009, 24(5): 698-701. doi: 10.1007/s11595-009-5698-9

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

2.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

3.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

4.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

5.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

6.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

基金项目: the National Natural Science Foundation of China(.50532030 and 50625206) the Zhejiang Provincial Natural Science Foundation of China(Z4080021)

Sonochemical Synthesis of Core/Shell Structured CdS/TiO_2 Nanocrystals Composites

WANG Zhiyu ^1, , YU Zhongping ^2, , LIU Bo ^3, , YE Bo ^4, , QIAN Guodong ^5, , FAN Xianping ^6,

1.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

2.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

3.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

4.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

5.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

6.State Key Laboratory of Silicon Materials,Department of Materials Science and Engineering,Zhejiang University,Hangzhou 310027,China

Keywords： core/shell

A simple sonochemical route for the surface coating of titanium dioxide on cadmium sulfide nanocrystal was reported.After 2 h ultrasonic irradiation treatment,the mixture of CdS nanocrystals and tetrabutyl titanate in an aqueous medium yielded CdS/TiO_2 nanocrystals composites with core/shell structure.The thickness of TiO_2 layer with smooth interface could be easily controlled via changing the concentration of the precursors and the time of irradiation.The core/shell nanocrysrals were characterized by X-ray diffraction,transmission electron microscope and UV-vis spectrometry techniques.The prepared semiconductor composites with particular band structure present appealing properties especially in photochemical activity.

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Sonochemical Synthesis of Core/Shell Structured CdS/TiO_2 Nanocrystals Composites

参考文献