1. Department of Chemical Engineering, Monash University, Clayton, Victoria 3800, Australia.
2. Monash Centre for Electron Microscopy, Monash University, Clayton, Victoria 3800, Australia.
3. Australian Synchrotron (ANSTO), Clayton, Victoria, 3168, Australia.
4. State Key Laboratory of Environmental Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China.
5. Center for Water and Ecology, State Key Joint Laboratory of Environment Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China.