Fe3O4 mediated Z-scheme BiVO4/Cr2V4O13 strongly coupled nano-heterojunction for rapid degradation of fluoxetine under visible light

Sunil Kumar Sharma; Amit Kumar; Gaurav Sharma; Mu Naushad; Dai Viet N. Vo; Manawwer Alam; Florian J. Stadler

doi:10.1016/j.matlet.2020.128650

Fe₃O₄ mediated Z-scheme BiVO₄/Cr₂V₄O₁₃ strongly coupled nano-heterojunction for rapid degradation of fluoxetine under visible light

Sunil Kumar Sharma
, Amit Kumar^*
, Gaurav Sharma
, Mu Naushad
, Dai Viet N. Vo
, Manawwer Alam
, Florian J. Stadler

^*Corresponding author for this work

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

21 Scopus citations

Abstract

Hybrid heterojunction photocatalysts dramatically improve the pharmaceutical wastewater treatment potential. In this work, we report construction of novel Fe₃O₄-BiVO₄/Cr₂V₄O₁₃ (FBC) with high interfacial transfer for visible and solar photo-degradation of fluoxetine (FX). Within 60 min of visible exposure, FBC removes 99.2% of FX and rate is ~ 8 times BiVO₄. The strongly coupled heterojunction leads high charge separation, interfacial charge transfer which attributes to the exceptional performance. Scavenging experiments and electron spin Resonance (ESR) probe suggest ^●OH and ^●O₂^– radicals as dominant species. The band structure and other experiments reveal a Z-scheme effective charge transfer is in action mediated by Fe₃O₄.

Original language	English
Article number	128650
Journal	Materials Letters
Volume	281
DOIs	https://doi.org/10.1016/j.matlet.2020.128650
State	Published - 15 Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

UN SDGs

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

SDG 6 Clean Water and Sanitation

Keywords

BiVO/CrVO
Heterojunction
Pharmaceuticals
Photocatalysis
Z-scheme

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2020.128650

Cite this

@article{4b7006b301f84dcea4755cac60dd4214,

title = "Fe3O4 mediated Z-scheme BiVO4/Cr2V4O13 strongly coupled nano-heterojunction for rapid degradation of fluoxetine under visible light",

abstract = "Hybrid heterojunction photocatalysts dramatically improve the pharmaceutical wastewater treatment potential. In this work, we report construction of novel Fe3O4-BiVO4/Cr2V4O13 (FBC) with high interfacial transfer for visible and solar photo-degradation of fluoxetine (FX). Within 60 min of visible exposure, FBC removes 99.2\% of FX and rate is \textasciitilde{} 8 times BiVO4. The strongly coupled heterojunction leads high charge separation, interfacial charge transfer which attributes to the exceptional performance. Scavenging experiments and electron spin Resonance (ESR) probe suggest ●OH and ●O2– radicals as dominant species. The band structure and other experiments reveal a Z-scheme effective charge transfer is in action mediated by Fe3O4.",

keywords = "BiVO/CrVO, Heterojunction, Pharmaceuticals, Photocatalysis, Z-scheme",

author = "Sharma, \{Sunil Kumar\} and Amit Kumar and Gaurav Sharma and Mu Naushad and Vo, \{Dai Viet N.\} and Manawwer Alam and Stadler, \{Florian J.\}",

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

year = "2020",

month = dec,

day = "15",

doi = "10.1016/j.matlet.2020.128650",

language = "English",

volume = "281",

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T1 - Fe3O4 mediated Z-scheme BiVO4/Cr2V4O13 strongly coupled nano-heterojunction for rapid degradation of fluoxetine under visible light

AU - Sharma, Sunil Kumar

AU - Kumar, Amit

AU - Sharma, Gaurav

AU - Naushad, Mu

AU - Vo, Dai Viet N.

AU - Alam, Manawwer

AU - Stadler, Florian J.

PY - 2020/12/15

Y1 - 2020/12/15

N2 - Hybrid heterojunction photocatalysts dramatically improve the pharmaceutical wastewater treatment potential. In this work, we report construction of novel Fe3O4-BiVO4/Cr2V4O13 (FBC) with high interfacial transfer for visible and solar photo-degradation of fluoxetine (FX). Within 60 min of visible exposure, FBC removes 99.2% of FX and rate is ~ 8 times BiVO4. The strongly coupled heterojunction leads high charge separation, interfacial charge transfer which attributes to the exceptional performance. Scavenging experiments and electron spin Resonance (ESR) probe suggest ●OH and ●O2– radicals as dominant species. The band structure and other experiments reveal a Z-scheme effective charge transfer is in action mediated by Fe3O4.

AB - Hybrid heterojunction photocatalysts dramatically improve the pharmaceutical wastewater treatment potential. In this work, we report construction of novel Fe3O4-BiVO4/Cr2V4O13 (FBC) with high interfacial transfer for visible and solar photo-degradation of fluoxetine (FX). Within 60 min of visible exposure, FBC removes 99.2% of FX and rate is ~ 8 times BiVO4. The strongly coupled heterojunction leads high charge separation, interfacial charge transfer which attributes to the exceptional performance. Scavenging experiments and electron spin Resonance (ESR) probe suggest ●OH and ●O2– radicals as dominant species. The band structure and other experiments reveal a Z-scheme effective charge transfer is in action mediated by Fe3O4.

KW - BiVO/CrVO

KW - Heterojunction

KW - Pharmaceuticals

KW - Photocatalysis

KW - Z-scheme

UR - https://www.scopus.com/pages/publications/85090950877

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DO - 10.1016/j.matlet.2020.128650

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