title: A novel platform to study the photoinduced electron transfer at a dye-sensitized solid/liquid interface.
abstract: Photoinduced electron transfer with the electron donor-acceptor linked system of zinc-5,10,15,20-tetraphenylporphyrin (ZnTPP) as donor and benzoquinone (BQ) as acceptor was designed to mimic the electron transfer process in photosynthetic reaction center. Within the framework of the bimolecular electron transfer mechanisms of scanning electrochemical microscopy (SECM), the fundamental features of photoinduced electron transfer were demonstrated by recording the feedback approach curves under different light wavelength, intensity, and concentration of BQ. Meanwhile, relevant theoretical study was employed to support our proposal. It demonstrated that SECM as a new platform could also provide crucial information for simple simulation of the electron transfer process in photosynthetic reaction center.
authors.affiliation: Key Laboratory of Bioelectrochemistry & Environmental Analysis of Gansu Province, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China. luxq@nwnu.edu.cn
authors.forename: Xiaoquan
authors.initials: X
authors.lastname: Lu
authors.forename: Yaqi
authors.initials: Y
authors.lastname: Hu
authors.forename: Wenting
authors.initials: W
authors.lastname: Wang
authors.forename: Jie
authors.initials: J
authors.lastname: Du
authors.forename: Hongxia
authors.initials: H
authors.lastname: He
authors.forename: Ruixia
authors.initials: R
authors.lastname: Ai
authors.forename: Xiuhui
authors.initials: X
authors.lastname: Liu
mesh_terms: D016227:Benzoquinones / Q000737:chemistry*; D002734:Chlorophyll / Q000737:chemistry / Q000378:metabolism; D004396:Coloring Agents / Q000737:chemistry*; D004566:Electrodes; D004579:Electron Transport / Q000528:radiation effects; D008027:Light; D010788:Photosynthesis / Q000528:radiation effects; D011166:Porphyrins / Q000737:chemistry / Q000378:metabolism; D013056:Spectrophotometry, Ultraviolet; D013816:Thermodynamics; D017971:Tin Compounds / Q000737:chemistry; D015032:Zinc / Q000737:chemistry / Q000378:metabolism
chemical_list: C509964:5,10,15,20-tetraphenylporphyrin; D016227:Benzoquinones; D004396:Coloring Agents; D011166:Porphyrins; D017971:Tin Compounds; D002734:Chlorophyll; C004532:quinone; C109984:indium tin oxide; D015032:Zinc