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Hydrogen Production from Hydrophobic Ruthenium Dye-Sensitized TiO2 Photocatalyst Assisted by Vesicle Formation
| Title: | Hydrogen Production from Hydrophobic Ruthenium Dye-Sensitized TiO2 Photocatalyst Assisted by Vesicle Formation |
| Authors: | Higashida, Yusuke Browse this author | | Takizawa, Shin-ya Browse this author →KAKEN DB | | Yoshida, Masaki Browse this author →KAKEN DB | | Kato, Masako Browse this author →KAKEN DB | | Kobayashi, Atsushi Browse this author |
| Keywords: | photocatalysis | | dye sensitization | | nanoparticle | | vesicle | | H-2 production |
| Issue Date: | 7-Jun-2023 |
| Publisher: | American Chemical Society |
| Journal Title: | ACS applied materials & interfaces |
| Volume: | 15 |
| Issue: | 22 |
| Start Page: | 27277 |
| End Page: | 27284 |
| Publisher DOI: | 10.1021/acsami.3c02340 |
| Abstract: | Dye-sensitizedH(2) evolution photocatalysts have attractedconsiderable attention as promising systems for the photochemicalgeneration of H-2 from water. In this study, to mimic thereaction field of natural photosynthesis artificially, we synthesizeda hydrophobic Ru-(II) dye-sensitized Pt-TiO2 nanoparticlephotocatalyst, RuC ( 9 )@Pt-TiO2 (RuC ( 9 ) = [Ru-(dC(9)bpy)(2)(H(4)dmpbpy)](2+); dC(9)bpy = 4,4 '-dinonyl-2,2 '-bipyridine, H(4)dmpbpy= 4,4 '-dimethyl phosphonic acid-2,2 '-bipyridine), andintegrated it into 1,2-dipalmitoyl-sn-glycero-3-phosphocholine(DPPC) lipid bilayer vesicle membranes. The photocatalytic H-2 production activity in 0.5 M l-ascorbic acid aqueous solutionenhanced by more than three times in the presence of DPPC vesicles(apparent quantum yield = 2.11%), whereas such a significant enhancementwas hardly observed when the vesicle formation was omitted. Theseresults indicate that the highly dispersed state of the hydrophobic RuC ( 9 )@Pt-TiO2 nanoparticlesin the DPPC bilayer vesicles is a key factor in achieving enhancedphotocatalytic H-2 production activity in aqueous solution. |
| Rights: | This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials & Interfaces , copyright © 2023 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/articlesonrequest/AOR-APXKNYTNR7K6YNFZCAUU |
| Type: | article (author version) |
| URI: | http://hdl.handle.net/2115/92597 |
| Appears in Collections: | 理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 小林 厚志
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