1. College of Chemical and Environmental Science, Hebei University, Baoding, Hebei Province, People’s Republic of China
2. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Science, Beijing, People’s Republic of China
3. Department of Chemical Engineering, Anhui Vocational and Technical College, Hefei, Anhui Province, People’s Republic of China
4. Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Japan
5. Institute of Image Processing and Pattern Recognition, Henan University, Kaifeng, People’s Republic of China