1. Shandong Vocational College of Light Industry, Zibo 255300, P. R. China
2. Institute of Environmental Research at Greater Bay Area, Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Guangzhou University, Guangzhou 510006, P. R. China
3. Shandong Xinquan Pharmaceutical Co., Ltd., Zibo 256100, P. R. China