Insitu growth of BiVO4/HoVO4 heterojunction with O[sbnd]O bond connection for enhanced photodegradation activity

Qi He; Jiandi Xin; Liang Mao; Xiaoyan Cai; Bangfu Ding; Lei Zhang; Junying Zhang; Shukai Zheng; Yanmin Yang

doi:10.1016/j.matlet.2020.128952

Insitu growth of BiVO₄/HoVO₄ heterojunction with O[sbnd]O bond connection for enhanced photodegradation activity

Qi He
, Jiandi Xin
, Liang Mao^*
, Xiaoyan Cai
, Bangfu Ding
, Lei Zhang
, Junying Zhang
, Shukai Zheng
, Yanmin Yang

^*Corresponding author for this work

School of Physics

College of Electron and Information Engineering
College of Civil Engineering and Architecture
China University of Mining and Technology
Hebei University

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

11 Scopus citations

Abstract

Heterojunction composite plays an important role in enhancing photocatalysis activity through inhibit electron-hole recombination. In this paper, biphasic heterojunction BiVO₄ and HoVO₄ is insitu-grown and characterized through XRD, TEM, Raman, SEM, EDS, and XPS. These two structures form n type staggered band configuration using Mott-Schottky and DRS. Rhodamine B (RhB) photodegradation efficiency of the optimal sample is 90.7% after 90 min, higher than single BiVO₄ 54% and HoVO₄ 34.5%. The main reason is ascribed to fast photogenerated charge separation via O[sbnd]O bond connection according to photoluminescence, photocurrent response, and theory calculation. The RhB degradation path is revealed from intermediate products identification. Therefore this study unveils photodegradation dyes application of BiVO₄/HoVO₄ samples.

Original language	English
Article number	128952
Journal	Materials Letters
Volume	284
DOIs	https://doi.org/10.1016/j.matlet.2020.128952
State	Published - 1 Feb 2021

Keywords

Lattice matching
Monocline BiVO
O[sbnd]O bond connection
Photodegradation RhB
Tetragonal HoVO

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10.1016/j.matlet.2020.128952

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@article{bcae391c7aec405ea239d4eca81e5654,

title = "Insitu growth of BiVO4/HoVO4 heterojunction with O[sbnd]O bond connection for enhanced photodegradation activity",

abstract = "Heterojunction composite plays an important role in enhancing photocatalysis activity through inhibit electron-hole recombination. In this paper, biphasic heterojunction BiVO4 and HoVO4 is insitu-grown and characterized through XRD, TEM, Raman, SEM, EDS, and XPS. These two structures form n type staggered band configuration using Mott-Schottky and DRS. Rhodamine B (RhB) photodegradation efficiency of the optimal sample is 90.7\% after 90 min, higher than single BiVO4 54\% and HoVO4 34.5\%. The main reason is ascribed to fast photogenerated charge separation via O[sbnd]O bond connection according to photoluminescence, photocurrent response, and theory calculation. The RhB degradation path is revealed from intermediate products identification. Therefore this study unveils photodegradation dyes application of BiVO4/HoVO4 samples.",

keywords = "Lattice matching, Monocline BiVO, O[sbnd]O bond connection, Photodegradation RhB, Tetragonal HoVO",

author = "Qi He and Jiandi Xin and Liang Mao and Xiaoyan Cai and Bangfu Ding and Lei Zhang and Junying Zhang and Shukai Zheng and Yanmin Yang",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2021",

month = feb,

day = "1",

doi = "10.1016/j.matlet.2020.128952",

language = "英语",

volume = "284",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Insitu growth of BiVO4/HoVO4 heterojunction with O[sbnd]O bond connection for enhanced photodegradation activity

AU - He, Qi

AU - Xin, Jiandi

AU - Mao, Liang

AU - Cai, Xiaoyan

AU - Ding, Bangfu

AU - Zhang, Lei

AU - Zhang, Junying

AU - Zheng, Shukai

AU - Yang, Yanmin

PY - 2021/2/1

Y1 - 2021/2/1

N2 - Heterojunction composite plays an important role in enhancing photocatalysis activity through inhibit electron-hole recombination. In this paper, biphasic heterojunction BiVO4 and HoVO4 is insitu-grown and characterized through XRD, TEM, Raman, SEM, EDS, and XPS. These two structures form n type staggered band configuration using Mott-Schottky and DRS. Rhodamine B (RhB) photodegradation efficiency of the optimal sample is 90.7% after 90 min, higher than single BiVO4 54% and HoVO4 34.5%. The main reason is ascribed to fast photogenerated charge separation via O[sbnd]O bond connection according to photoluminescence, photocurrent response, and theory calculation. The RhB degradation path is revealed from intermediate products identification. Therefore this study unveils photodegradation dyes application of BiVO4/HoVO4 samples.

AB - Heterojunction composite plays an important role in enhancing photocatalysis activity through inhibit electron-hole recombination. In this paper, biphasic heterojunction BiVO4 and HoVO4 is insitu-grown and characterized through XRD, TEM, Raman, SEM, EDS, and XPS. These two structures form n type staggered band configuration using Mott-Schottky and DRS. Rhodamine B (RhB) photodegradation efficiency of the optimal sample is 90.7% after 90 min, higher than single BiVO4 54% and HoVO4 34.5%. The main reason is ascribed to fast photogenerated charge separation via O[sbnd]O bond connection according to photoluminescence, photocurrent response, and theory calculation. The RhB degradation path is revealed from intermediate products identification. Therefore this study unveils photodegradation dyes application of BiVO4/HoVO4 samples.

KW - Lattice matching

KW - Monocline BiVO

KW - O[sbnd]O bond connection

KW - Photodegradation RhB

KW - Tetragonal HoVO

UR - https://www.scopus.com/pages/publications/85095742212

U2 - 10.1016/j.matlet.2020.128952

DO - 10.1016/j.matlet.2020.128952

M3 - 文章

AN - SCOPUS:85095742212

SN - 0167-577X

VL - 284

JO - Materials Letters

JF - Materials Letters

M1 - 128952

ER -

Insitu growth of BiVO₄/HoVO₄ heterojunction with O[sbnd]O bond connection for enhanced photodegradation activity

Abstract

Keywords

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