期刊
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
卷 16, 期 7, 页码 1079-1087出版社
SPRINGERNATURE
DOI: 10.1039/c6pp00465b
关键词
-
资金
- Ministry of Science and Higher Education, Poland, within the IDEAS PLUS project [IdP2012000362]
Bare and photosensitized copper iodides were tested in photocatalysed degradation of an organic dye (Acid Red 1) and inactivation of fungi (Saccharomyces cerevisiae). CuI, with the band gap energy slightly lower than that of TiO2, appeared to be highly efficient in these processes. Sensitization of copper iodide was achieved by surface modification with [Cu(SCN)(2)(phen)(2)]. The photosensitization mechanism encompasses a metal to metal charge transfer, Cu-I -> Cu-II. The applied photosensitizer binds to CuI through thiocyanate ligands resulting in the formation of an active Cu-II/Cu-I hybrid photocatalyst ([Cu-II(SCN)(2)(phen)(2)]@(CuI)-I-I). Its absorption edge is red shifted towards a lower energy when compared with bare CuI, resulting in enhanced visible light induced photocatalytic activity. The studied materials appeared to be photoactive in current generation, degradation of organic compounds and inactivation of fungi.
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