1. State Key Laboratory of Chemical Resource Engineering and School of Science, Beijing University of Chemical Technology, Beijing 100029, China
2. Beijing Key Laboratory of Environmentally Harmful Chemical Analysis, Beijing University of Chemical Technology, Beijing 100029, China
3. State Key Laboratory of Organic–Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, China
4. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100022, China
5. Department of Physics, University of Texas at Arlington, Arlington, Texas 76019, USA