Hydrogen evolution by photocatalytic decomposition of water under UV irradiation over K[Bi3PbTi5O16]perovskite: Effect of cerium species

Chong Heng He; O. Bong Yang

doi:10.1021/ie010978k

Hydrogen evolution by photocatalytic decomposition of water under UV irradiation over K[Bi₃PbTi₅O₁₆]perovskite: Effect of cerium species

Chong Heng He
, O. Bong Yang^*

^*Corresponding author for this work

Division of Chemical Engineering

Jeonbuk National University

Research output: Contribution to journal › Journal article › peer-review

17 Scopus citations

Abstract

Photocatalytic decomposition of water to produce hydrogen under UV irradiation was studied over layered perovskite K[Bi₃PbTi₅O₁₆] photocatalysts prepared by the polymerized complex (PC) method. The photocatalysts were characterized by X-ray diffraction, ultraviolet - visible spectra, Brunauer - Emmett - Teller specific surface area, and FT-IR. The complete phase of K[Bi₃PbTi₅O₁₆] perovskite was formed at a lower calcination temperature (1073 K, 2 h) by the PC method than a solid-state (SS) reaction method (1273 K, 6 h). The K[Bi₃PbTi₅O₁₆] photocatalyst prepared by the PC method showed much higher activity than that prepared by SS reaction method. The evolution rate of hydrogen over PC-K[Bi₃PbTi₅O₁₆] was significantly enhanced and affected by the addition of Ce(SO₄)₂ in the aqueous solution, which showed a volcano plot as a function of the concentration of Ce(SO₄)₂ passing through the maximum hydrogen evolution at [Ce(SO₄)₂]= 2.4 mM. It was found that the essential promoters for the photocatalytic decomposition of water to produce hydrogen in the Ce(SO₄)₂ aqueous solution were cerium(IV) cations adsorbed on the perovskite surface (Ce_ad⁴⁺) as well as cerium(III) cations in the aqueous phase (Ce_aq³⁺), which were transformed from Ce_aq⁴⁺ in the aqueous solution of cerium(IV) sulfate during the induction period.

Original language	English
Pages (from-to)	419-425
Number of pages	7
Journal	Industrial and Engineering Chemistry Research
Volume	42
Issue number	3
DOIs	https://doi.org/10.1021/ie010978k
State	Published - 2003.02.5

UN SDGs

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

SDG 7 Affordable and Clean Energy

Quacquarelli Symonds(QS) Subject Topics

Engineering - Mechanical
Engineering - Chemical
Chemistry

Access to Document

10.1021/ie010978k

Cite this

@article{26e1cb2e9b1d495ea5a6c054119d3d24,

title = "Hydrogen evolution by photocatalytic decomposition of water under UV irradiation over K[Bi3PbTi5O16]perovskite: Effect of cerium species",

abstract = "Photocatalytic decomposition of water to produce hydrogen under UV irradiation was studied over layered perovskite K[Bi3PbTi5O16] photocatalysts prepared by the polymerized complex (PC) method. The photocatalysts were characterized by X-ray diffraction, ultraviolet - visible spectra, Brunauer - Emmett - Teller specific surface area, and FT-IR. The complete phase of K[Bi3PbTi5O16] perovskite was formed at a lower calcination temperature (1073 K, 2 h) by the PC method than a solid-state (SS) reaction method (1273 K, 6 h). The K[Bi3PbTi5O16] photocatalyst prepared by the PC method showed much higher activity than that prepared by SS reaction method. The evolution rate of hydrogen over PC-K[Bi3PbTi5O16] was significantly enhanced and affected by the addition of Ce(SO4)2 in the aqueous solution, which showed a volcano plot as a function of the concentration of Ce(SO4)2 passing through the maximum hydrogen evolution at [Ce(SO4)2]= 2.4 mM. It was found that the essential promoters for the photocatalytic decomposition of water to produce hydrogen in the Ce(SO4)2 aqueous solution were cerium(IV) cations adsorbed on the perovskite surface (Cead4+) as well as cerium(III) cations in the aqueous phase (Ceaq3+), which were transformed from Ceaq4+ in the aqueous solution of cerium(IV) sulfate during the induction period.",

author = "He, \{Chong Heng\} and Yang, \{O. Bong\}",

year = "2003",

month = feb,

day = "5",

doi = "10.1021/ie010978k",

language = "English",

volume = "42",

pages = "419--425",

journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

number = "3",

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TY - JOUR

T1 - Hydrogen evolution by photocatalytic decomposition of water under UV irradiation over K[Bi3PbTi5O16]perovskite

T2 - Effect of cerium species

AU - He, Chong Heng

AU - Yang, O. Bong

PY - 2003/2/5

Y1 - 2003/2/5

N2 - Photocatalytic decomposition of water to produce hydrogen under UV irradiation was studied over layered perovskite K[Bi3PbTi5O16] photocatalysts prepared by the polymerized complex (PC) method. The photocatalysts were characterized by X-ray diffraction, ultraviolet - visible spectra, Brunauer - Emmett - Teller specific surface area, and FT-IR. The complete phase of K[Bi3PbTi5O16] perovskite was formed at a lower calcination temperature (1073 K, 2 h) by the PC method than a solid-state (SS) reaction method (1273 K, 6 h). The K[Bi3PbTi5O16] photocatalyst prepared by the PC method showed much higher activity than that prepared by SS reaction method. The evolution rate of hydrogen over PC-K[Bi3PbTi5O16] was significantly enhanced and affected by the addition of Ce(SO4)2 in the aqueous solution, which showed a volcano plot as a function of the concentration of Ce(SO4)2 passing through the maximum hydrogen evolution at [Ce(SO4)2]= 2.4 mM. It was found that the essential promoters for the photocatalytic decomposition of water to produce hydrogen in the Ce(SO4)2 aqueous solution were cerium(IV) cations adsorbed on the perovskite surface (Cead4+) as well as cerium(III) cations in the aqueous phase (Ceaq3+), which were transformed from Ceaq4+ in the aqueous solution of cerium(IV) sulfate during the induction period.

AB - Photocatalytic decomposition of water to produce hydrogen under UV irradiation was studied over layered perovskite K[Bi3PbTi5O16] photocatalysts prepared by the polymerized complex (PC) method. The photocatalysts were characterized by X-ray diffraction, ultraviolet - visible spectra, Brunauer - Emmett - Teller specific surface area, and FT-IR. The complete phase of K[Bi3PbTi5O16] perovskite was formed at a lower calcination temperature (1073 K, 2 h) by the PC method than a solid-state (SS) reaction method (1273 K, 6 h). The K[Bi3PbTi5O16] photocatalyst prepared by the PC method showed much higher activity than that prepared by SS reaction method. The evolution rate of hydrogen over PC-K[Bi3PbTi5O16] was significantly enhanced and affected by the addition of Ce(SO4)2 in the aqueous solution, which showed a volcano plot as a function of the concentration of Ce(SO4)2 passing through the maximum hydrogen evolution at [Ce(SO4)2]= 2.4 mM. It was found that the essential promoters for the photocatalytic decomposition of water to produce hydrogen in the Ce(SO4)2 aqueous solution were cerium(IV) cations adsorbed on the perovskite surface (Cead4+) as well as cerium(III) cations in the aqueous phase (Ceaq3+), which were transformed from Ceaq4+ in the aqueous solution of cerium(IV) sulfate during the induction period.

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