1. Department of Chemistry, College of Sciences, Henan Agricultural University, Nongye Road 63, 450002 Zhengzhou, China
2. School of Environmental Engineering, Henan University of Technology, Lianhua Street 100, 450001 Zhengzhou, China
3. Zhengzhou Public Utility Investment Development Group Co. Ltd, Shangding Road 89, 450000 Zhengzhou, China