1. MOE Key Laboratory of Pollution Processes and Environmental Criteria Tianjin Key Laboratory of Environmental Remediation and Pollution Control College of Environmental Science and Engineering Nankai University Tianjin 300350 P. R. China
2. Tianjin Key Laboratory of Clean Energy and Pollutant Control School of Energy and Environmental Engineering Hebei University of Technology Tianjin 300401 P. R. China
3. College of Chemistry and Chemical Engineering Xinjiang Normal University Urumqi 830000 P. R. China
4. State Key Laboratory of Molecular Reaction Dynamics Dalian Institute of Chemical Physics Chinese Academy of Sciences Dalian 116000 P. R. China