Photocatalytic decomposition of water to produce hydrogen H is an ideal way to solve energy and environmental problems, and the development of highly efficient polyoxometalate catalysts for photocatalytic hydrogen production has attracted wide attention. Herein, two Cu-modified Strandberg-type organophosphomolybdates were successfully synthesized, [Cu(CHN)(HO)][(CHPO)MoO]·4HO () and [Cu(phen)(HO)][Cu(phen)(HO)][(CHPO)MoO]·2HO () ([(CHP)MoO]Cu) (CHN = 2-(1H-pyrazol-3-yl)pyridine, phen = 1,10-phenanthroline). Two Strandberg-type organophosphomolybdates can be used for visible-light-driven hydrogen production. Also, compound exhibits an H production rate of 6399 μmol g h after 8 h light exposure in the presence of photosensitization agent [Ir(dtbbpy)(ppy)][PF] and TEOA. In addition, cyclic tests showed that compound could be recycled four times without a significant reduction in catalytic performance. This work offers fresh insight into the development of novel polyoxometalates for efficient hydrogen evolution.
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