Surfactant-assistant and facile synthesis of hollow ZnS nanospheres

被引:31
作者
Dong, Lihong
Chu, Ying [1 ]
Zhang, Yanping
Liu, Yang
Yang, Fuyong
机构
[1] NE Normal Univ, Dept Chem, Changchun 130024, Peoples R China
[2] Tonghua Normal Coll, Dept Chem, Tonghua 134002, Peoples R China
关键词
ZnS; hollow nanospheres; photocatalytic activity; FABRICATION; SPHERES; MICROSPHERES; EFFICIENT; ROUTE; SOL;
D O I
10.1016/j.jcis.2006.12.025
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Small and monodisperse ZnS hollow nanospheres with outer diameter ranging from 60 to 70 nm and wall thickness of 15-20 nm were fabricated in a large scale by a simple surfactant polyethylene glycol (PEG) assisted method. The diameter and the wall thickness of the hollow nanospheres could be controlled by manipulating the amount of PEG and the aging time, respectively. Moreover, the wall of these hollow nanospheres is very compact. The product was characterized by X-ray power diffraction (XRD), transmission electron microscopy (TEM), UV-vis spectrum and fluorescence spectroscopy. The photocatalytic activity of as-prepared ZnS hollow nanospheres was also evaluated by using methyl orange (MO) as a model organic compound and the result revealed that their photocatalytic activity is a little lower than that of Degussa P25 TiO2 but better than that of ZnS nanocrystals prepared by literature method. Furthermore, a rational mechanism to the formation and evolution of the products is proposed. (c) 2006 Elsevier Inc. All rights reserved.
引用
收藏
页码:258 / 264
页数:7
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