Synthesis of hydrophilic ZnS nanocrystals and their application in photocatalytic degradation of dye pollutants--颗粒学报PARTICUOLOGY

Li, J., Xu, Y., Liu, Y., Wu, D., & Sun, Y. (2004). Synthesis of hydrophilic ZnS nanocrystals and their application in photocatalytic degradation of dye pollutants. China Particuology, 2(6), 266-269. https://doi.org/10.1016/S1672-2515(07)60072-4

Synthesis of hydrophilic ZnS nanocrystals and their application in photocatalytic degradation of dye pollutants

Junping Li ^{a b}, Yao Xu ^a, Yong Liu ^{a b}, Dong Wu ^a, Yuhan Sun ^a *

a State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China
b Graduate school of the Chinese Academy of Sciences, Beijing 100089, P. R. China

10.1016/S1672-2515(07)60072-4

Volume 2, Issue 6, December 2004, Pages 266-269

Received 21 October 2004, Accepted 15 November 2004, Available online 27 November 2007.

E-mail: yhsun@sxicc.ac.cn

Highlights

Abstract

Hydrophilic ZnS nanocrystals with narrow size distribution were synthesized via homogeneous precipitation using EDTA as stabilizer. The as-synthesized products were characterized with XRD, TEM, HRTEM and UV-Vis spectrum. UV-Vis spectra showed that ZnS nanocrystals exhibited strong quantum-confined effect with a blue shift in the band gap of light absorbance. The photocatalytic activity of these nanocrystals was also investigated for the liquid phase photocatalytic degradation of Basic Violet 5BN (BV5) dye under UV irradiation. It was found that the ZnS nanocrystals had good catalytic activity for photodegradation of BV5.

Graphical abstract

Keywords

ZnS; nanocrystals; homogeneous precipitation; photocatalytic activity; pollutant degradation

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