1. Department of Environmental Engineering School of Metallurgy and Environment Central South University Changsha 410083 China
2. John de Laeter Centre Curtin University Perth WA 6102 Australia
3. Australian Synchrotron Clayton Vic. 3168 Australia
4. Western Australian School of Mines: Minerals, Energy and Chemical Engineering and Fuels and Energy Technology Institute Curtin University Perth WA 6102 Australia
5. State Key Laboratory of Chem/Bio‐Sensing and Chemometrics College of Chemistry and Chemical Engineering Hunan University Changsha 410082 Hunan China