1. College of Chemistry and Material Science, Hunan Provincial Key Laboratory of Functional Metal-Organic Compounds, Hengyang Normal University, Hengyang, Hunan, P. R. China
2. Key Laboratory of Organometallic New Materials (Hengyang Normal University), College of Hunan Province, Hengyang, Hunan, P. R. China
3. Hunan Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the upper Reaches of Xiangjiang River, Hengyang, Hunan, P. R. China