title: Peptide Self-Assembled Biofilm with Unique Electron Transfer Flexibility for Highly Efficient Visible-Light-Driven Photocatalysis.
abstract: Inspired by natural photosynthesis, biomaterial-based catalysts are being confirmed to be excellent for visible-light-driven photocatalysis, but are far less well explored. Herein, an ultrathin and uniform biofilm fabricated from cold-plasma-assisted peptide self-assembly was employed to support Eosin Y (EY) and Pt nanoparticles to form an EY/Pt/Film catalyst for photocatalytic water splitting to H2 and photocatalytic CO2 reduction with water to CO, under irradiation of visible light. The H2 evolution rate on EY/Pt/Film is 62.1 μmol h(-1), which is about 5 times higher than that on Pt/EY and 1.5 times higher than that on the EY/Pt/TiO2 catalyst. EY/Pt/Film exhibits an enhanced CO evolution rate (19.4 μmol h(-1)), as compared with Pt/EY (2.8 μmol h(-1)) and EY/Pt/TiO2 (6.1 μmol h(-1)). The outstanding activity of EY/Pt/Film results from the unique flexibility of the biofilm for an efficient transfer of the photoinduced electrons. The present work is helpful for designing efficient biomaterial-based catalysts for visible-light-driven photocatalysis and for imitating natural photosynthesis.
authors.affiliation: School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, P. R. China.|Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China.
authors.forename: Yun-Xiang
authors.initials: YX
authors.lastname: Pan
authors.affiliation: School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, P. R. China.|Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, P. R. China.
authors.forename: Huai-Ping
authors.initials: HP
authors.lastname: Cong
authors.affiliation: School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, P. R. China.
authors.forename: Yu-Long
authors.initials: YL
authors.lastname: Men
authors.affiliation: School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, P. R. China.
authors.forename: Sen
authors.initials: S
authors.lastname: Xin
authors.affiliation: School of Chemistry and Chemical Engineering, Hefei University of Technology , Hefei 230009, P. R. China.
authors.forename: Zheng-Qing
authors.initials: ZQ
authors.lastname: Sun
authors.affiliation: Collaborative Innovation Centre of Chemical Science and Engineering, School of Chemical Engineering and Technology, Tianjin University , Tianjin 300072, P. R. China.
authors.forename: Chang-Jun
authors.initials: CJ
authors.lastname: Liu
authors.affiliation: Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemistry, University of Science and Technology of China , Hefei 230026, P. R. China.
authors.forename: Shu-Hong
authors.initials: SH
authors.lastname: Yu
mesh_terms: D016229:Amyloid beta-Peptides / Q000737:chemistry*; D018441:Biofilms; D002384:Catalysis / Q000528:radiation effects; D004583:Electrons; D008027:Light; D013057:Spectrum Analysis; D014867:Water / Q000737:chemistry
chemical_list: D016229:Amyloid beta-Peptides; D014867:Water
keywords: CO2 reduction; electron transfer flexibility; peptide self-assembled biofilm; visible-light-driven photocatalysis; water splitting