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Title: Exceptional enhancement of H{sub 2} production in alkaline environment over plasmonic Au/TiO{sub 2} photocatalyst under visible light

Abstract

A reaction environment modulation strategy was employed to promote the H{sub 2} production over plasmonic Au/semiconductor composites. It is shown that the fast consumption of the holes in plasmonic Au nanoparticles by methanol in alkaline reaction environment remarkably increases H{sub 2} generation rate under visible light. The photocatalytic reaction is mainly driven by the interband transition of plasmonic Au nanoparticles, and the apparent quantum efficiency of plasmon-assisted H{sub 2} production at pH 14 reaches 6% at 420 nm. The reaction environment control provides a simple and effective way for the highly efficient solar fuel production from biomass reforming through plasmonic photocatalysis in future.

Authors:
;  [1];  [2];  [1]; ; ;  [3];  [4];  [1];  [2];  [5]
  1. Graduate School of Chemical Science and Engineering, Hokkaido University, Sapporo 060-0814 (Japan)
  2. (WPI-MANA), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
  3. Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics (WPI-MANA), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)
  4. TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072 (China)
  5. (China)
Publication Date:
OSTI Identifier:
22415245
Resource Type:
Journal Article
Journal Name:
APL materials
Additional Journal Information:
Journal Volume: 3; Journal Issue: 10; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 2166-532X
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; BIOMASS; COMPOSITE MATERIALS; ENERGY-LEVEL TRANSITIONS; GOLD; HOLES; HYDROGEN; METHANOL; MODULATION; NANOPARTICLES; PH VALUE; PHOTOCATALYSIS; PLASMONS; QUANTUM EFFICIENCY; SEMICONDUCTOR MATERIALS; TITANIUM OXIDES; VISIBLE RADIATION

Citation Formats

Meng, Xianguang, Liu, Guigao, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, Yu, Qing, Wang, Tao, Chang, Kun, Li, Peng, Liu, Lequan, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Ye, Jinhua, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, and TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072. Exceptional enhancement of H{sub 2} production in alkaline environment over plasmonic Au/TiO{sub 2} photocatalyst under visible light. United States: N. p., 2015. Web. doi:10.1063/1.4921783.
Meng, Xianguang, Liu, Guigao, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, Yu, Qing, Wang, Tao, Chang, Kun, Li, Peng, Liu, Lequan, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Ye, Jinhua, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, & TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072. Exceptional enhancement of H{sub 2} production in alkaline environment over plasmonic Au/TiO{sub 2} photocatalyst under visible light. United States. doi:10.1063/1.4921783.
Meng, Xianguang, Liu, Guigao, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, Yu, Qing, Wang, Tao, Chang, Kun, Li, Peng, Liu, Lequan, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Ye, Jinhua, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn, Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics, and TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072. Thu . "Exceptional enhancement of H{sub 2} production in alkaline environment over plasmonic Au/TiO{sub 2} photocatalyst under visible light". United States. doi:10.1063/1.4921783.
@article{osti_22415245,
title = {Exceptional enhancement of H{sub 2} production in alkaline environment over plasmonic Au/TiO{sub 2} photocatalyst under visible light},
author = {Meng, Xianguang and Liu, Guigao and Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics and Yu, Qing and Wang, Tao and Chang, Kun and Li, Peng and Liu, Lequan, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn and Ye, Jinhua, E-mail: Jinhua.YE@nims.go.jp, E-mail: Lequan.Liu@tju.edu.cn and Environmental Remediation Materials Unit and International Center for Materials Nanoarchitectonics and TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Tianjin 300072},
abstractNote = {A reaction environment modulation strategy was employed to promote the H{sub 2} production over plasmonic Au/semiconductor composites. It is shown that the fast consumption of the holes in plasmonic Au nanoparticles by methanol in alkaline reaction environment remarkably increases H{sub 2} generation rate under visible light. The photocatalytic reaction is mainly driven by the interband transition of plasmonic Au nanoparticles, and the apparent quantum efficiency of plasmon-assisted H{sub 2} production at pH 14 reaches 6% at 420 nm. The reaction environment control provides a simple and effective way for the highly efficient solar fuel production from biomass reforming through plasmonic photocatalysis in future.},
doi = {10.1063/1.4921783},
journal = {APL materials},
issn = {2166-532X},
number = 10,
volume = 3,
place = {United States},
year = {2015},
month = {10}
}