1. New Energy Research Institute, School of Environment and EnergySouth China University of Technology, Guangzhou Higher Education Mega Center Guangzhou 510006 P.R. China
2. College of Chemical EngineeringNorth China University of Science and Technology Tangshan 063009 P.R. China
3. State Key Laboratory of Processing for Non-ferrous Metal and Featured Materials School of Resources, Environment and MaterialsGuangxi University Nanning 530004 P.R. China
4. Guangdong Engineering and Technology Research Center for Surface Chemistry of Energy MaterialsSouth China University of Technology Guangzhou Higher Education Mega Centre Guangzhou 510006 P.R. China