1. Hebei Key Lab of Power Plant Flue Gas Multi-Pollutants Control, Department of Environmental Science and Engineering, North China Electric Power University, Baoding 071003, P. R. China
2. MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing 102206, P. R. China
3. Department of Chemistry and Biology, Swinburne University of Technology, Hawthorn, Victoria 3122, Australia