Preparation and Usage of ZnS/Phosphate Heterostructured Hemispheres in Enhanced Photocatalytic Activities
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- 作者：Jun Liu ; Baoyou Geng ; Shaozhen Wang
- 刊名：Crystal Growth & Design
- 出版年：2009
- 出版时间：October 7, 2009
- 年：2009
- 卷：9
- 期：10
- 页码：4384-4390
- 全文大小：969K
- 年卷期：v.9,no.10(October 7, 2009)
- ISSN：1528-7505
文摘
Novel rough ZnS/slick hopeite heterostructured hemispheres are fabricated through a facile hydrothermal route. By controlling the reaction conditions, pure ZnS microspheres, Zn3(PO4)2·4H2O panels and concave heterostructured microspheres also can be obtained. According to experimental results, the equilibrium controlled growth mechanism is proposed for the formation of products. The as-synthesized Zn3(PO4)2·4H2O panels have one Zn-terminated surface and one PO4 tetrahedral group terminated surface. The ZnS nanostructures form on the Zn-terminated surface, resulting in different heterostructures. The obtained ZnS/Zn3(PO4)2·4H2O heterostructured hemispheres show strongly structure-induced enhancement of photocatalytic performance for the photodegradation of Rhodamine B. The superiority of photocatalytic performance is attributed to the high specific surface area, larger size and the heterostructured architectures. This work not only gives insight into understanding the heterostructured growth behavior of microstructures in a solution-phase synthetic system, which may extend to synthesizing other controllable morphology and heterostructured materials but also provides an efficient route to optimize some properties of semiconductors.