Study on Photocatalytic Properties of 3d-4f Heterobimetallic Polyoxometalates
Due to the increasing energy shortage and environmental pollution,the development of clean and renewable energy has become the focus of social attention.Because hydrogen energy has the advantages of zero carbon emission and renewable energy,it has become one of the ideal energy sources.In this paper,three rare earth polyacid hybrid materials with the same structure based on Keggin type silicotungstic acid,transition metal Cu,and organic ligand isonicotinic acid were synthesized by hydrothermal synthesis.The samples were analyzed and characterized by single crystal X-ray diffraction and powder X-ray diffraction(PXRD),which proved that the three compounds were pure phase compounds.The results showed that the H2 release rate of compound 3 was the fastest,up to 2.641 21 μmol·g-1·min-1,which was about 4.1 times that of H4SiW12O40.
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维普
