1. Institute for Nanoscale Technology, University of Technology Sydney, P. O. Box 123, Broadway, NSW 2007, Australia
2. Institute for Water and Environmental Resources Management, University of Technology Sydney, P. O. Box 123, Broadway, NSW 2007, Australia
3. Current address: Faculty of Engineering and Surveying, University of Southern Queensland, West Street, Toowoomba, QLD 4350, Australia
4. Australian Synchrotron, 800 Blackburn Road, Clayton, VIC 3168, Australia