1. College of Chemistry and Chemical Engineering Jiangxi Inorganic Membrane Materials Engineering Research Centre Jiangxi Normal University Nanchang 330022 P.R. China
2. Department of Chemistry University of California Riverside CA 92521 USA
3. School of Resources Environmental and Chemical Engineering Nanchang University Nanchang 330031 P.R. China
4. Department of Chemistry University of Tennessee Knoxville TN 37996 USA
5. Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN 37831 USA