WS2 sensitized mesoporous TiO2 for efficient photocatalytic hydrogen production from water under visible light

Dengwei Jing; Lie Jin Guo; Chanjuan Xing; Qiuhui Yan

WS₂ sensitized mesoporous TiO₂ for efficient photocatalytic hydrogen production from water under visible light

Dengwei Jing
, Lie Jin Guo
, Chanjuan Xing
, Qiuhui Yan

School of Energy and Power Engineering

Xi'an Jiaotong University

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Nanosize WS₂ sensitized mesoporous TiO₂ was prepared to extend the adsorption of the wide band gap TiO₂ into visible light region. Compared with nonporous particle TiO₂ substrate, it was found that the existence of mesopore is important for larger amount of WS ₂ loading and inhibition of the light-induced detachment of WS ₂ particles from the TiO₂ substrate during photocatalytic reaction, which leads to higher photocatalytic activity and stability. We also found that the rate-determining step for photocatalytic hydrogen production is the transfer of electrons from TiO₂ substrate to H⁺ in solution, when the recombination between electrons and holes within TiO ₂ could be neglected. In this case, deposition of Pt at the surface of semiconductor is indispensable for efficient hydrogen production.

Original language	English
Title of host publication	16th World Hydrogen Energy Conference 2006, WHEC 2006
Pages	2194-2198
Number of pages	5
State	Published - 2006
Event	16th World Hydrogen Energy Conference 2006, WHEC 2006 - Lyon, France Duration: 13 Jun 2006 → 16 Jun 2006

Publication series

Name	16th World Hydrogen Energy Conference 2006, WHEC 2006
Volume	3

Conference

Conference	16th World Hydrogen Energy Conference 2006, WHEC 2006
Country/Territory	France
City	Lyon
Period	13/06/06 → 16/06/06

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Hydrogen
Mesoporous
Photocatalytic
Sensitize

Cite this

@inproceedings{15b749e01522439697401d0b06b5ade1,

title = "WS2 sensitized mesoporous TiO2 for efficient photocatalytic hydrogen production from water under visible light",

abstract = "Nanosize WS2 sensitized mesoporous TiO2 was prepared to extend the adsorption of the wide band gap TiO2 into visible light region. Compared with nonporous particle TiO2 substrate, it was found that the existence of mesopore is important for larger amount of WS 2 loading and inhibition of the light-induced detachment of WS 2 particles from the TiO2 substrate during photocatalytic reaction, which leads to higher photocatalytic activity and stability. We also found that the rate-determining step for photocatalytic hydrogen production is the transfer of electrons from TiO2 substrate to H+ in solution, when the recombination between electrons and holes within TiO 2 could be neglected. In this case, deposition of Pt at the surface of semiconductor is indispensable for efficient hydrogen production.",

keywords = "Hydrogen, Mesoporous, Photocatalytic, Sensitize",

author = "Dengwei Jing and Guo, \{Lie Jin\} and Chanjuan Xing and Qiuhui Yan",

year = "2006",

language = "英语",

isbn = "9781622765409",

series = "16th World Hydrogen Energy Conference 2006, WHEC 2006",

pages = "2194--2198",

booktitle = "16th World Hydrogen Energy Conference 2006, WHEC 2006",

note = "16th World Hydrogen Energy Conference 2006, WHEC 2006 ; Conference date: 13-06-2006 Through 16-06-2006",

}

WS₂ sensitized mesoporous TiO₂ for efficient photocatalytic hydrogen production from water under visible light. / Jing, Dengwei ; Guo, Lie Jin; Xing, Chanjuan et al.
16th World Hydrogen Energy Conference 2006, WHEC 2006. 2006. p. 2194-2198 (16th World Hydrogen Energy Conference 2006, WHEC 2006; Vol. 3).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - WS2 sensitized mesoporous TiO2 for efficient photocatalytic hydrogen production from water under visible light

AU - Jing, Dengwei

AU - Guo, Lie Jin

AU - Xing, Chanjuan

AU - Yan, Qiuhui

PY - 2006

Y1 - 2006

N2 - Nanosize WS2 sensitized mesoporous TiO2 was prepared to extend the adsorption of the wide band gap TiO2 into visible light region. Compared with nonporous particle TiO2 substrate, it was found that the existence of mesopore is important for larger amount of WS 2 loading and inhibition of the light-induced detachment of WS 2 particles from the TiO2 substrate during photocatalytic reaction, which leads to higher photocatalytic activity and stability. We also found that the rate-determining step for photocatalytic hydrogen production is the transfer of electrons from TiO2 substrate to H+ in solution, when the recombination between electrons and holes within TiO 2 could be neglected. In this case, deposition of Pt at the surface of semiconductor is indispensable for efficient hydrogen production.

AB - Nanosize WS2 sensitized mesoporous TiO2 was prepared to extend the adsorption of the wide band gap TiO2 into visible light region. Compared with nonporous particle TiO2 substrate, it was found that the existence of mesopore is important for larger amount of WS 2 loading and inhibition of the light-induced detachment of WS 2 particles from the TiO2 substrate during photocatalytic reaction, which leads to higher photocatalytic activity and stability. We also found that the rate-determining step for photocatalytic hydrogen production is the transfer of electrons from TiO2 substrate to H+ in solution, when the recombination between electrons and holes within TiO 2 could be neglected. In this case, deposition of Pt at the surface of semiconductor is indispensable for efficient hydrogen production.

KW - Hydrogen

KW - Mesoporous

KW - Photocatalytic

KW - Sensitize

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M3 - 会议稿件

AN - SCOPUS:84875594219

SN - 9781622765409

T3 - 16th World Hydrogen Energy Conference 2006, WHEC 2006

SP - 2194

EP - 2198

BT - 16th World Hydrogen Energy Conference 2006, WHEC 2006

T2 - 16th World Hydrogen Energy Conference 2006, WHEC 2006

Y2 - 13 June 2006 through 16 June 2006

ER -