1. College of Chemsitry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, P. R. China
2. Hunan Provincial Key Laboratory of Water Treatment Functional Materials, Hunan University of Arts and Science, Changde 415000, P. R. China
3. Hunan Province Engineering Research Center of Electroplating Wastewater Reuse Technology, Hunan University of Arts and Science, Changde 415000, P. R. China
4. Nanjing Foreign Language School, Nanjing 210000, P. R. China