1. State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of Technology Harbin 150001 China
2. Interdisciplinary Nanoscience Center (iNANO) and Department of Physics and AstronomyAarhus University Aarhus 8000 Denmark
3. Beijing Computational Science Research Center Beijing 100193 China
4. Condensed Matter Science and Technology InstituteHarbin Institute of Technology Harbin 150001 China