Preparation of CdS-TiO2/Rectorite Nanocomposite and Its Photocatalytic Property

Chem. J. Chinese Universities ›› 2011, Vol. 32 ›› Issue (12): 2823.

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Preparation of CdS-TiO2/Rectorite Nanocomposite and Its Photocatalytic Property

XIAO Jiang-Rong^1,2, PENG Tian-You^2*, ZHOU Sheng-Yin¹, ZENG Peng²

1. Hubei Provincial Supervision and Inspection Research Institute for Products Quality, Wuhan 430061, China;
2. College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China

Received:2011-03-29 Revised:2011-07-04 Online:2011-12-10 Published:2011-11-25
Contact: PENG Tian-You E-mail:typeng@whu.edu.cn
Supported by:
国家质检总局公益性行业科研专项(批准号: 201010052)、国家自然科学基金(批准号: 20973128)和新世纪优秀人才支持项目(批准号: NCET-07-0637)资助.

Abstract

Abstract: CdS-TiO2/rectorite nanocomposite was obtained through in-situ intercalation-exfoliation process of CdS-TiO2. The microstructures and properties of the CdS-TiO2/rectorite were characterized by means of X-ray powder diffraction(XRD), transmission electron microscopy(TEM), Fourier transform infrared spectroscopy(FTIR), diffuse reflectance absorbance spectroscopy(DRS) and nitrogen adsorption-desorption measurement. The adsorption and photocatalytic properties of rectorite, TiO2/rectorite and CdS-TiO2/rectorite nanocomposites were comparatively investigated by Rhodamine B(RB) as simulated organic pollutant. The experimental results show that the CdS-TiO2/rectorite nanocomposite exhibits more complicated porous structure, larger pore volume, specific surface area and more effective optical absorptivity, and therefore stronger adsorption ability and higher photocatalytic degradation activity as compared to the rectorite. The above results show a promising route for the application of the rare mineral rectroite.

Key words: Rectorite, CdS, TiO2, Photocatalytic degradation, Nanocomposite

CLC Number:

0643

TrendMD:

XIAO Jiang-Rong, PENG Tian-You*, ZHOU Sheng-Yin, ZENG Peng. Preparation of CdS-TiO2/Rectorite Nanocomposite and Its Photocatalytic Property[J]. Chem. J. Chinese Universities, 2011, 32(12): 2823.

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Preparation of CdS-TiO2/Rectorite Nanocomposite and Its Photocatalytic Property

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