Facile synthesis of β-Bi2O3/Bi2O 2CO3 nanocomposite with high visible-light photocatalytic activity

Guiyu Cai; Lingling Xu; Bo Wei; Jixin Che; Hong Gao; Wenjun Sun

doi:10.1016/j.matlet.2014.01.027

Facile synthesis of β-Bi₂O₃/Bi₂O ₂CO₃ nanocomposite with high visible-light photocatalytic activity

Guiyu Cai
, Lingling Xu^*
, Bo Wei
, Jixin Che
, Hong Gao
, Wenjun Sun

^*Corresponding author for this work

School of Physics

Harbin Normal University
Aviation University of Air Force

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

56 Scopus citations

Abstract

β-Bi₂O₃/Bi₂O₂CO ₃ composite nanosheets are synthesized via a rational heat-treatment of Bi₂O₂CO₃ precursor. The precursor transforms to β-Bi₂O₃/Bi₂O₂CO₃ composites and α-Bi₂O₃ phase under different calcination conditions. The photocatalytic activities are evaluated and compared through the photodegradation of methylene blue (MB) under visible-light irradiation. β-Bi₂O₃/Bi₂O ₂CO₃ composites exhibit much higher photodegradation activity than Bi₂O₂CO₃ and α-Bi ₂O₃ products. The significant enhancement is attributed to the formation of β-Bi₂O₃/Bi₂O ₂CO₃ heterojunctions, which is favorable for the low recombination rate of the electron-hole pairs.

Original language	English
Pages (from-to)	1-4
Number of pages	4
Journal	Materials Letters
Volume	120
DOIs	https://doi.org/10.1016/j.matlet.2014.01.027
State	Published - 1 Apr 2014

Keywords

BiO
BiOCO
Nanocomposites
Phase transformation
Photocatalysts

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10.1016/j.matlet.2014.01.027

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title = "Facile synthesis of β-Bi2O3/Bi2O 2CO3 nanocomposite with high visible-light photocatalytic activity",

abstract = "β-Bi2O3/Bi2O2CO 3 composite nanosheets are synthesized via a rational heat-treatment of Bi2O2CO3 precursor. The precursor transforms to β-Bi2O3/Bi2O2CO3 composites and α-Bi2O3 phase under different calcination conditions. The photocatalytic activities are evaluated and compared through the photodegradation of methylene blue (MB) under visible-light irradiation. β-Bi2O3/Bi2O 2CO3 composites exhibit much higher photodegradation activity than Bi2O2CO3 and α-Bi 2O3 products. The significant enhancement is attributed to the formation of β-Bi2O3/Bi2O 2CO3 heterojunctions, which is favorable for the low recombination rate of the electron-hole pairs.",

keywords = "BiO, BiOCO, Nanocomposites, Phase transformation, Photocatalysts",

author = "Guiyu Cai and Lingling Xu and Bo Wei and Jixin Che and Hong Gao and Wenjun Sun",

year = "2014",

month = apr,

day = "1",

doi = "10.1016/j.matlet.2014.01.027",

language = "英语",

volume = "120",

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journal = "Materials Letters",

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TY - JOUR

T1 - Facile synthesis of β-Bi2O3/Bi2O 2CO3 nanocomposite with high visible-light photocatalytic activity

AU - Cai, Guiyu

AU - Xu, Lingling

AU - Wei, Bo

AU - Che, Jixin

AU - Gao, Hong

AU - Sun, Wenjun

PY - 2014/4/1

Y1 - 2014/4/1

N2 - β-Bi2O3/Bi2O2CO 3 composite nanosheets are synthesized via a rational heat-treatment of Bi2O2CO3 precursor. The precursor transforms to β-Bi2O3/Bi2O2CO3 composites and α-Bi2O3 phase under different calcination conditions. The photocatalytic activities are evaluated and compared through the photodegradation of methylene blue (MB) under visible-light irradiation. β-Bi2O3/Bi2O 2CO3 composites exhibit much higher photodegradation activity than Bi2O2CO3 and α-Bi 2O3 products. The significant enhancement is attributed to the formation of β-Bi2O3/Bi2O 2CO3 heterojunctions, which is favorable for the low recombination rate of the electron-hole pairs.

AB - β-Bi2O3/Bi2O2CO 3 composite nanosheets are synthesized via a rational heat-treatment of Bi2O2CO3 precursor. The precursor transforms to β-Bi2O3/Bi2O2CO3 composites and α-Bi2O3 phase under different calcination conditions. The photocatalytic activities are evaluated and compared through the photodegradation of methylene blue (MB) under visible-light irradiation. β-Bi2O3/Bi2O 2CO3 composites exhibit much higher photodegradation activity than Bi2O2CO3 and α-Bi 2O3 products. The significant enhancement is attributed to the formation of β-Bi2O3/Bi2O 2CO3 heterojunctions, which is favorable for the low recombination rate of the electron-hole pairs.

KW - BiO

KW - BiOCO

KW - Nanocomposites

KW - Phase transformation

KW - Photocatalysts

UR - https://www.scopus.com/pages/publications/84893096295

U2 - 10.1016/j.matlet.2014.01.027

DO - 10.1016/j.matlet.2014.01.027

M3 - 文章

AN - SCOPUS:84893096295

SN - 0167-577X

VL - 120

SP - 1

EP - 4

JO - Materials Letters

JF - Materials Letters

ER -

Facile synthesis of β-Bi₂O₃/Bi₂O ₂CO₃ nanocomposite with high visible-light photocatalytic activity

Abstract

Keywords

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