Hubei Key Laboratory of Bioanalytical Technique,Hubei Normal University, Huangshi, Hubei 435002, China;
Department of Chemistry and Environmental Engineering,Hubei Normal University, Huangshi, Hubei 435002,China;
School of Chemistry and Materials Science, Wenzhou University,Wenzhou, Zhejiang 325027, China;
polymolybdic acid; hydrothermal synthesis; crystal structure; two-dimensional framework;