Evolution of Hierarchical Hexagonal Stacked Plates of CuS from Liquid−Liquid Interface and its Photocatalytic Application for Oxidative Degradation of Different Dyes under Indoor Lighting
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- 作者：Mrinmoyee Basu ; Arun Kumar Sinha ; Mukul Pradhan ; Sougata Sarkar ; Yuichi Negishi ; Govind ; Tarasankar Pal
- 刊名：Environmental Science & Technology
- 出版年：2010
- 出版时间：August 15, 2010
- 年：2010
- 卷：44
- 期：16
- 页码：6313-6318
- 全文大小：289K
- 年卷期：v.44,no.16(August 15, 2010)
- ISSN：1520-5851
文摘
Blue solution of copper(II) acetylacetonate complex, [Cu(acac)2] in dichloromethane (DCM) and an aqueous alkaline solution of thioacetamide (TAA) constitute a biphasic system. The system in a screw cap test tube under a modified hydrothermal (MHT) reaction condition produces a greenish black solid at the liquid−liquid interface. It has been characterized that the solid mass is an assembly of hexagonal copper sulfide (CuS) nanoplates representing a hierarchical structure. The as-synthesized CuS nanoplates are well characterized by several physical techniques. An ethanolic dispersion of CuS presents a high band gap energy (2.2 eV) which assists visible light photocatalytic mineralization of different dye molecules. Thus a cleanup measure of dye contaminated water body even under indoor light comes true.