1. Institute for Superconducting & Electronic Materials Australian Institute for Innovative Materials University of Wollongong innovation Campus North Wollongong New South Wales 2500 Australia
2. School of Metallurgy and Environment Central South University Changsha 410083 China
3. Chinese National Engineering Research Centre for Control & Treatment of Heavy Metal Pollution Changsha 410083 China
4. Faculty of Engineering and Information Science University of Wollongong Northfields Ave Wollongong New South Wales 2522 Australia
5. School of Chemical Engineering & Advanced Materials The University of Adelaide Adelaide South Australia 5005 Australia