Photocatalytic properties of BiOX (X = Cl, Br, and I)

Huizhong AN; Yi DU; Tianmin WANG; Cong WANG; Weichang HAO; Junying ZHANG

doi:10.1016/S1001-0521(08)60123-0

Photocatalytic properties of BiOX (X = Cl, Br, and I)

Huizhong AN
, Yi DU
, Tianmin WANG
, Cong WANG^*
, Weichang HAO
, Junying ZHANG

^*Corresponding author for this work

Beihang University

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

351 Scopus citations

Abstract

A novel series of photocatalysts, bismuth oxyhalide (BiOX, X = Cl, Br, and I), were synthesized by a hydrolysis method. The powder samples were characterized by the use of X-ray diffraction (XRD), scanning electron microscope, and UV-Vis spectrophotometer. The XRD pattern showed that all the BiOX were well crystallized in the tetragonal structure. The band gaps of the sheet-shaped compounds BiOX (X = Cl, Br, and I) were 3.44, 2.76, and 1.85 eV, respectively. BiOBr showed the highest photocatalytic activity in degrading rhodamine B (RhB) and evolving O2 for its proper valence band (VB). BiOI has no photocatalytic activity. BiOCl showed the highest activity in decomposing isopropanol because of electron-hole pair separation through trapping electrons by oxygen vacancies.

Original language	English
Pages (from-to)	243-250
Number of pages	8
Journal	Rare Metals
Volume	27
Issue number	3
DOIs	https://doi.org/10.1016/S1001-0521(08)60123-0
State	Published - Jun 2008

Keywords

BiOBr
BiOCl
BiOI
O evolution
isopropanol
photocatalysis
rhodamine B

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10.1016/S1001-0521(08)60123-0

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@article{c9e3fdaf3cf04d16b19234dafad1f19e,

title = "Photocatalytic properties of BiOX (X = Cl, Br, and I)",

abstract = "A novel series of photocatalysts, bismuth oxyhalide (BiOX, X = Cl, Br, and I), were synthesized by a hydrolysis method. The powder samples were characterized by the use of X-ray diffraction (XRD), scanning electron microscope, and UV-Vis spectrophotometer. The XRD pattern showed that all the BiOX were well crystallized in the tetragonal structure. The band gaps of the sheet-shaped compounds BiOX (X = Cl, Br, and I) were 3.44, 2.76, and 1.85 eV, respectively. BiOBr showed the highest photocatalytic activity in degrading rhodamine B (RhB) and evolving O2 for its proper valence band (VB). BiOI has no photocatalytic activity. BiOCl showed the highest activity in decomposing isopropanol because of electron-hole pair separation through trapping electrons by oxygen vacancies.",

keywords = "BiOBr, BiOCl, BiOI, O evolution, isopropanol, photocatalysis, rhodamine B",

author = "Huizhong AN and Yi DU and Tianmin WANG and Cong WANG and Weichang HAO and Junying ZHANG",

year = "2008",

month = jun,

doi = "10.1016/S1001-0521(08)60123-0",

language = "英语",

volume = "27",

pages = "243--250",

journal = "Rare Metals",

issn = "1001-0521",

publisher = "John Wiley and Sons Inc",

number = "3",

}

TY - JOUR

T1 - Photocatalytic properties of BiOX (X = Cl, Br, and I)

AU - AN, Huizhong

AU - DU, Yi

AU - WANG, Tianmin

AU - WANG, Cong

AU - HAO, Weichang

AU - ZHANG, Junying

PY - 2008/6

Y1 - 2008/6

N2 - A novel series of photocatalysts, bismuth oxyhalide (BiOX, X = Cl, Br, and I), were synthesized by a hydrolysis method. The powder samples were characterized by the use of X-ray diffraction (XRD), scanning electron microscope, and UV-Vis spectrophotometer. The XRD pattern showed that all the BiOX were well crystallized in the tetragonal structure. The band gaps of the sheet-shaped compounds BiOX (X = Cl, Br, and I) were 3.44, 2.76, and 1.85 eV, respectively. BiOBr showed the highest photocatalytic activity in degrading rhodamine B (RhB) and evolving O2 for its proper valence band (VB). BiOI has no photocatalytic activity. BiOCl showed the highest activity in decomposing isopropanol because of electron-hole pair separation through trapping electrons by oxygen vacancies.

AB - A novel series of photocatalysts, bismuth oxyhalide (BiOX, X = Cl, Br, and I), were synthesized by a hydrolysis method. The powder samples were characterized by the use of X-ray diffraction (XRD), scanning electron microscope, and UV-Vis spectrophotometer. The XRD pattern showed that all the BiOX were well crystallized in the tetragonal structure. The band gaps of the sheet-shaped compounds BiOX (X = Cl, Br, and I) were 3.44, 2.76, and 1.85 eV, respectively. BiOBr showed the highest photocatalytic activity in degrading rhodamine B (RhB) and evolving O2 for its proper valence band (VB). BiOI has no photocatalytic activity. BiOCl showed the highest activity in decomposing isopropanol because of electron-hole pair separation through trapping electrons by oxygen vacancies.

KW - BiOBr

KW - BiOCl

KW - BiOI

KW - O evolution

KW - isopropanol

KW - photocatalysis

KW - rhodamine B

UR - https://www.scopus.com/pages/publications/46449112349

U2 - 10.1016/S1001-0521(08)60123-0

DO - 10.1016/S1001-0521(08)60123-0

M3 - 文章

AN - SCOPUS:46449112349

SN - 1001-0521

VL - 27

SP - 243

EP - 250

JO - Rare Metals

JF - Rare Metals

IS - 3

ER -

Photocatalytic properties of BiOX (X = Cl, Br, and I)

Abstract

Keywords

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