g-C3N4 coated SrTiO3 as an efficient photocatalyst for H2 production in aqueous solution under visible light irradiation

Xiaoxiang Xu; Gang Liu; Chamnan Randorn; John Thomas Sirr Irvine

doi:10.1016/j.ijhydene.2011.08.052

g-C₃N₄ coated SrTiO₃ as an efficient photocatalyst for H₂ production in aqueous solution under visible light irradiation

Xiaoxiang Xu, Gang Liu, Chamnan Randorn, John Thomas Sirr Irvine

Research output: Contribution to journal › Article › peer-review

226 Citations (Scopus)

Abstract

A highly active photocatalyst based on g-C3N4 coated SrTiO3 has been synthesized simply by decomposing urea in the presence of SrTiO3 at 400 °C. The catalyst demonstrates a high H2 production rate ∼440 μmol h−1/g catalyst in aqueous solution under visible light irradiation, which is much higher than conventional anion doped SrTiO3 or physical mixtures of g-C3N4 and SrTiO3. The improved photocatalytic activity can be ascribed to the close interfacial connections between g-C3N4 and SrTiO3 where photo-generated electron and holes are effectively separated. The newly synthesized catalyst also exhibited a stable performance in the repeated experiments.

Original language	English
Pages (from-to)	13501-13507
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	21
DOIs	https://doi.org/10.1016/j.ijhydene.2011.08.052
Publication status	Published - 2011

Keywords

Carbon nitride
Photocatalyst
Visible light
SrTiO3

Access to Document

10.1016/j.ijhydene.2011.08.052

International Collaboration in Chemistry: International Collaboration in Chemistry enhancing direct photoelectrochemical conversion of CO2
Irvine, J. T. S. (PI)
EPSRC
1/11/09 → 31/12/12
Project: Standard
Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology
Irvine, J. T. S. (PI), Cassidy, M. (CoI), Connor, P. A. (CoI), Savaniu, C. D. (CoI) & Tao, S. (CoI)
EPSRC
1/01/08 → 31/12/12
Project: Standard

Cite this

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title = "g-C3N4 coated SrTiO3 as an efficient photocatalyst for H2 production in aqueous solution under visible light irradiation",

abstract = "A highly active photocatalyst based on g-C3N4 coated SrTiO3 has been synthesized simply by decomposing urea in the presence of SrTiO3 at 400 °C. The catalyst demonstrates a high H2 production rate ∼440 μmol h−1/g catalyst in aqueous solution under visible light irradiation, which is much higher than conventional anion doped SrTiO3 or physical mixtures of g-C3N4 and SrTiO3. The improved photocatalytic activity can be ascribed to the close interfacial connections between g-C3N4 and SrTiO3 where photo-generated electron and holes are effectively separated. The newly synthesized catalyst also exhibited a stable performance in the repeated experiments.",

keywords = "Carbon nitride, Photocatalyst, Visible light, SrTiO3",

author = "Xiaoxiang Xu and Gang Liu and Chamnan Randorn and Irvine, {John Thomas Sirr}",

year = "2011",

doi = "10.1016/j.ijhydene.2011.08.052",

language = "English",

volume = "36",

pages = "13501--13507",

journal = "International Journal of Hydrogen Energy",

issn = "0360-3199",

publisher = "PERGAMON-ELSEVIER SCIENCE LTD",

number = "21",

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T1 - g-C3N4 coated SrTiO3 as an efficient photocatalyst for H2 production in aqueous solution under visible light irradiation

AU - Xu, Xiaoxiang

AU - Liu, Gang

AU - Randorn, Chamnan

AU - Irvine, John Thomas Sirr

PY - 2011

Y1 - 2011

N2 - A highly active photocatalyst based on g-C3N4 coated SrTiO3 has been synthesized simply by decomposing urea in the presence of SrTiO3 at 400 °C. The catalyst demonstrates a high H2 production rate ∼440 μmol h−1/g catalyst in aqueous solution under visible light irradiation, which is much higher than conventional anion doped SrTiO3 or physical mixtures of g-C3N4 and SrTiO3. The improved photocatalytic activity can be ascribed to the close interfacial connections between g-C3N4 and SrTiO3 where photo-generated electron and holes are effectively separated. The newly synthesized catalyst also exhibited a stable performance in the repeated experiments.

AB - A highly active photocatalyst based on g-C3N4 coated SrTiO3 has been synthesized simply by decomposing urea in the presence of SrTiO3 at 400 °C. The catalyst demonstrates a high H2 production rate ∼440 μmol h−1/g catalyst in aqueous solution under visible light irradiation, which is much higher than conventional anion doped SrTiO3 or physical mixtures of g-C3N4 and SrTiO3. The improved photocatalytic activity can be ascribed to the close interfacial connections between g-C3N4 and SrTiO3 where photo-generated electron and holes are effectively separated. The newly synthesized catalyst also exhibited a stable performance in the repeated experiments.

KW - Carbon nitride

KW - Photocatalyst

KW - Visible light

KW - SrTiO3

U2 - 10.1016/j.ijhydene.2011.08.052

DO - 10.1016/j.ijhydene.2011.08.052

M3 - Article

SN - 0360-3199

VL - 36

SP - 13501

EP - 13507

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 21

ER -

g-C3N4 coated SrTiO3 as an efficient photocatalyst for H2 production in aqueous solution under visible light irradiation

Abstract

Keywords

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Projects

International Collaboration in Chemistry: International Collaboration in Chemistry enhancing direct photoelectrochemical conversion of CO2

Material for high Temp FCT EP/E064248/1: Materials for High Temperature Fuel Cell Technology

Cite this

g-C₃N₄ coated SrTiO₃ as an efficient photocatalyst for H₂ production in aqueous solution under visible light irradiation