TY - JOUR ID - 22354 TI - Photocatalytic C-H bond activation by surface anchoring of [CoII(Saloph)(His)] complex on Ag-TiO2 nanocomposite JO - Scientia Iranica JA - SCI LA - en SN - 1026-3098 AU - Shahnejat, E. AU - Mohebbi, S. AD - - Department of Chemistry, University of Kurdistan, Sanandaj, P.O. Box, 66179-416, Iran - Research Center of Nanotechnology, University of Kurdistan, Sanandaj, P.O. Box, 66177-15175, Iran Y1 - 2021 PY - 2021 VL - 28 IS - 6 SP - 3816 EP - 2826 KW - Heterojunction catalyst KW - Photocatalyst KW - alcohol oxidation KW - nanohybrid KW - plasmonic, cobalt Schiff base complex DO - 10.24200/sci.2021.57767.5405 N2 - A novel heterojunction plasmonic photocatalyst [Co(Saloph)(His)]/Ag-TiO2 as a nanohybrid material was applied for the photocatalytic activity towards the C-H bond cleavage of alcohols to the aldehyde using different oxidants, O2, H2O2, or TBHP under irradiation of visible-light and NHPI as co-catalyst. It was synthesized by photo-deposition of metallic silver nanoparticles on titanium oxide surface and follow it, modification with cobalt(II) Saloph complex under ultrasonic agitation condition using histidine linker to reach a photocatalyst under 50 nm in size and band gap 2.64 eV. The [Co(Saloph)(His)]/Ag-TiO2 nanohybrid was characterized with EDS, XRD, DRS, FT-IR, PL spectroscopies, FESEM imaging, and BET technique. The size This three-component plasmonic photocatalyst revealed high photocatalytic efficiency with 95% conversion and 99% selectivity in aerobic conditions. The higher photocatalytic performance of [Co(Saloph)(His)]/Ag-TiO2 than the Co(Saloph)/TiO2 and Ag-TiO2 NPs should be related to the localized surface plasmonic resonance (LSPR) of these motives. So, this three-component nanohybrid provides an efficient interfacial electron transfer process through a synergistic effect that allows producing a nanocatalyst, with advantages of stability and fast selective C-H bond activation alcohols at ambient temperature using O2 as an inexpensive environmental friendly oxidant. UR - https://scientiairanica.sharif.edu/article_22354.html L1 - https://scientiairanica.sharif.edu/article_22354_a8959f1f199f9dd9520e3e8cfc8bb710.pdf ER -