Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 364, Issue -, Pages 650-656Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2018.07.003
Keywords
Cobalt (II) complex; CdS materials; Hydrogen evolution; Photocatalytic system
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Funding
- National Science Foundation of China [20971045, 21271073, 21372088]
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The reaction of S,S'-bis(2-pyridylmethyl)-1,2-thioethane (bpte) and CoCl2 formed a new cobalt(II) complex, [(bpte)CoCl2], a new cocatalyst for photochemical driven hydrogen evolution from water. Several physicochemical and spectroscopic methods were used to characterize the cobalt complex. Under photoirradiation with blue light (lambda(max) = 469 nm), together with CdS nanorods (CdS NRs) as a photosensitizer, and ascorbic acid (H(2)A) as a sacrificial electron donor, the cobalt complex can catalyze hydrogen evolution in heterogeneous environments and can remain for 120 h. Under an optimal condition, this photocatalytic system achieved a turnover number (TON) of 9810 mol H-2 per mol of catalyst (mol of cat(-1)) during 95 h irradiation.
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