Abstract
It is quite interesting to develop photocatalytic applications among borate materials, in addition to their applications in optics. The diversity in structural chemistry may provide suitable electronic structures, possessing low e−-h+ recombination rate. With this rationale, polycrystalline Cd12Ge17B8O58 was unraveled as a new efficient photocatalyst for H2 evolution in pure water. The calculated electronic structure suggests different effective masses of e− and h+, facilitating the anisotropic migration of charges. Various cocatalysts (Ag, Au, Pd, Pt, CuOx, RuOx, NiOx) were applied to significantly enhance the activity, and the optimal H2 evolution rate in pure water achieved 163μmol/h/g.
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