1. Ph.D. Student, State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing Univ., Nanjing 210093, People’s Republic of China; presently, Institute of Chemistry, Henan Academy of Sciences, Zhengzhou 450002, People’s Republic of China.
2. MS Student, State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing Univ., Nanjing 210093, People’s Republic of China.
3. Professor, State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing Univ., Nanjing 210093, People’s Republic of China (corresponding author).