Bismuth oxybromide with reasonable photocatalytic reduction activity under visible light

Jun Shang; Weichang Hao; Xiaojun Lv; Tianmin Wang; Xiaolin Wang; Yi Du; Shixue Dou; Tengfeng Xie; Dejun Wang; Jiaou Wang

doi:10.1021/cs401025u

Bismuth oxybromide with reasonable photocatalytic reduction activity under visible light

Jun Shang
, Weichang Hao^*
, Xiaojun Lv
, Tianmin Wang
, Xiaolin Wang
, Yi Du
, Shixue Dou
, Tengfeng Xie
, Dejun Wang
, Jiaou Wang

^*Corresponding author for this work

School of Physics

Beihang University
University of Wollongong
CAS - Technical Institute of Physics and Chemistry
College of Chemistry
CAS - Institute of High Energy Physics

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

346 Scopus citations

Abstract

The original bismuth-based oxyhalide, known as the Sillén family, is an important photocatalyst due to its high photocatalytic oxidation activity. Here, we report a bismuth-based photocatalyst, Bi₂₄O ₃₁Br₁₀, with reasonable reduction activity. The photoreduction capability of Bi₂₄O₃₁Br₁₀ in H₂ evolution from water reduction is 133.9 μmol after 40 h under visible light irradiation. Bi₂₄O₃₁Br₁₀ presents the highest activity among Bi₂O₃, BiOBr, and Bi ₂₄O₃₁Br₁₀ in photocatalytic reduction of the Cr (VI) test, and Cr (VI) ions are totally removed in 40 min. The Mott-Schottky test shows the bottom of the conduction band fits the electric potential requirements for splitting water to H₂. First-principles calculations indicate the conduction band of Bi₂₄O₃₁Br₁₀ mainly consists of hybridized Bi 6p and Br 4s orbitals, which may contribute to the uplifting of the conduction band.

Original language	English
Pages (from-to)	954-961
Number of pages	8
Journal	ACS Catalysis
Volume	4
Issue number	3
DOIs	https://doi.org/10.1021/cs401025u
State	Published - 7 Mar 2014

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

SDG 7 Affordable and Clean Energy

Keywords

BiOBr
bismuth-based oxyhalide
hydrogen production
photocatalyst
photocatalytic reduction activity

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10.1021/cs401025u

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@article{3ecf6352fe0c4e8e86497bfb2bd86d70,

title = "Bismuth oxybromide with reasonable photocatalytic reduction activity under visible light",

abstract = "The original bismuth-based oxyhalide, known as the Sill{\'e}n family, is an important photocatalyst due to its high photocatalytic oxidation activity. Here, we report a bismuth-based photocatalyst, Bi24O 31Br10, with reasonable reduction activity. The photoreduction capability of Bi24O31Br10 in H2 evolution from water reduction is 133.9 μmol after 40 h under visible light irradiation. Bi24O31Br10 presents the highest activity among Bi2O3, BiOBr, and Bi 24O31Br10 in photocatalytic reduction of the Cr (VI) test, and Cr (VI) ions are totally removed in 40 min. The Mott-Schottky test shows the bottom of the conduction band fits the electric potential requirements for splitting water to H2. First-principles calculations indicate the conduction band of Bi24O31Br10 mainly consists of hybridized Bi 6p and Br 4s orbitals, which may contribute to the uplifting of the conduction band.",

keywords = "BiOBr, bismuth-based oxyhalide, hydrogen production, photocatalyst, photocatalytic reduction activity",

author = "Jun Shang and Weichang Hao and Xiaojun Lv and Tianmin Wang and Xiaolin Wang and Yi Du and Shixue Dou and Tengfeng Xie and Dejun Wang and Jiaou Wang",

year = "2014",

month = mar,

day = "7",

doi = "10.1021/cs401025u",

language = "英语",

volume = "4",

pages = "954--961",

journal = "ACS Catalysis",

issn = "2155-5435",

publisher = "American Chemical Society",

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TY - JOUR

T1 - Bismuth oxybromide with reasonable photocatalytic reduction activity under visible light

AU - Shang, Jun

AU - Hao, Weichang

AU - Lv, Xiaojun

AU - Wang, Tianmin

AU - Wang, Xiaolin

AU - Du, Yi

AU - Dou, Shixue

AU - Xie, Tengfeng

AU - Wang, Dejun

AU - Wang, Jiaou

PY - 2014/3/7

Y1 - 2014/3/7

N2 - The original bismuth-based oxyhalide, known as the Sillén family, is an important photocatalyst due to its high photocatalytic oxidation activity. Here, we report a bismuth-based photocatalyst, Bi24O 31Br10, with reasonable reduction activity. The photoreduction capability of Bi24O31Br10 in H2 evolution from water reduction is 133.9 μmol after 40 h under visible light irradiation. Bi24O31Br10 presents the highest activity among Bi2O3, BiOBr, and Bi 24O31Br10 in photocatalytic reduction of the Cr (VI) test, and Cr (VI) ions are totally removed in 40 min. The Mott-Schottky test shows the bottom of the conduction band fits the electric potential requirements for splitting water to H2. First-principles calculations indicate the conduction band of Bi24O31Br10 mainly consists of hybridized Bi 6p and Br 4s orbitals, which may contribute to the uplifting of the conduction band.

AB - The original bismuth-based oxyhalide, known as the Sillén family, is an important photocatalyst due to its high photocatalytic oxidation activity. Here, we report a bismuth-based photocatalyst, Bi24O 31Br10, with reasonable reduction activity. The photoreduction capability of Bi24O31Br10 in H2 evolution from water reduction is 133.9 μmol after 40 h under visible light irradiation. Bi24O31Br10 presents the highest activity among Bi2O3, BiOBr, and Bi 24O31Br10 in photocatalytic reduction of the Cr (VI) test, and Cr (VI) ions are totally removed in 40 min. The Mott-Schottky test shows the bottom of the conduction band fits the electric potential requirements for splitting water to H2. First-principles calculations indicate the conduction band of Bi24O31Br10 mainly consists of hybridized Bi 6p and Br 4s orbitals, which may contribute to the uplifting of the conduction band.

KW - BiOBr

KW - bismuth-based oxyhalide

KW - hydrogen production

KW - photocatalyst

KW - photocatalytic reduction activity

UR - https://www.scopus.com/pages/publications/84896786400

U2 - 10.1021/cs401025u

DO - 10.1021/cs401025u

M3 - 文章

AN - SCOPUS:84896786400

SN - 2155-5435

VL - 4

SP - 954

EP - 961

JO - ACS Catalysis

JF - ACS Catalysis

IS - 3

ER -

Bismuth oxybromide with reasonable photocatalytic reduction activity under visible light

Abstract

UN SDGs

Keywords

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