1. State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology (WUT), No. 122, Luoshi Road, Wuhan 430070, P. R. China
2. Department of Chemistry, Materials Chemistry Centre, University College London, 20 Gordon St., London WC1H 0AJ, U.K.
3. Department of Physics, Innovation Center of Materials for Energy and Environment Technologies, College of Science, Tibet University, Lhasa 850000, China