Investigation of photoreduction of Cr (VI) and electrocatalytic properties of hydrothermally produced novel CoFe2O4/ZnO nanostructure

F. F. Alharbi; Salma Aman; Naseeb Ahmad; Muhammad Abdullah; Abdul Ghafoor Abid; Sumaira Manzoor; Sergei Trukhanov; M. I. Sayyed; Daria Tishkevich; Alex Trukhanov

doi:10.1016/j.solidstatesciences.2023.107278

Investigation of photoreduction of Cr (VI) and electrocatalytic properties of hydrothermally produced novel CoFe₂O₄/ZnO nanostructure

F. F. Alharbi, Salma Aman, Naseeb Ahmad, Muhammad Abdullah, Abdul Ghafoor Abid, Sumaira Manzoor, Sergei Trukhanov, M. I. Sayyed, Daria Tishkevich^*, Alex Trukhanov

^*Corresponding author for this work

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

60 Scopus citations

Abstract

A hydrothermal technique was used to create a CoFe₂O₄/ZnO (CFO/ZO) nanocomposite for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the nanohybrid, CoFe₂O₄ (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr into trivalent Cr. The results demonstrate that CFO exhibited a 91.20% photoreduction efficiency for Cr (VI) compared to CoFe₂O₄ (86.81%) and ZO (72.52%). This obtained rate constant for CFO, ZO and CFO/ZO are 0.020, 0.014 & 0.0255 min⁻¹, respectively. The electrochemical results suggest that the CFO/ZO exhibited a smaller Rct value (2.718 Ω) than the CFO (5.97 Ω) and ZO (4.12 Ω). The outcome indicates that CFO/ZO can effectively detoxify the noxious chemical like Cr (VI) by photoreduction to a less hazardous state (Cr III) than the ZO and CFO pristine materials.

Original language	English
Article number	107278
Journal	Solid State Sciences
Volume	143
DOIs	https://doi.org/10.1016/j.solidstatesciences.2023.107278
State	Published - Sep 2023
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2023 Elsevier Masson SAS

Keywords

CoFeO/ZnO
Electrocatalyst
Hydrothermal method
Nanocomposite
Photoreduction of Cr (VI)

ASJC Scopus subject areas

General Chemistry
General Materials Science
Condensed Matter Physics

Access to Document

10.1016/j.solidstatesciences.2023.107278

Cite this

Alharbi, F. F., Aman, S., Ahmad, N., Abdullah, M., Abid, A. G., Manzoor, S., Trukhanov, S., Sayyed, M. I., Tishkevich, D., & Trukhanov, A. (2023). Investigation of photoreduction of Cr (VI) and electrocatalytic properties of hydrothermally produced novel CoFe₂O₄/ZnO nanostructure. Solid State Sciences, 143, Article 107278. https://doi.org/10.1016/j.solidstatesciences.2023.107278

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title = "Investigation of photoreduction of Cr (VI) and electrocatalytic properties of hydrothermally produced novel CoFe2O4/ZnO nanostructure",

abstract = "A hydrothermal technique was used to create a CoFe2O4/ZnO (CFO/ZO) nanocomposite for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the nanohybrid, CoFe2O4 (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr into trivalent Cr. The results demonstrate that CFO exhibited a 91.20\% photoreduction efficiency for Cr (VI) compared to CoFe2O4 (86.81\%) and ZO (72.52\%). This obtained rate constant for CFO, ZO and CFO/ZO are 0.020, 0.014 \& 0.0255 min−1, respectively. The electrochemical results suggest that the CFO/ZO exhibited a smaller Rct value (2.718 Ω) than the CFO (5.97 Ω) and ZO (4.12 Ω). The outcome indicates that CFO/ZO can effectively detoxify the noxious chemical like Cr (VI) by photoreduction to a less hazardous state (Cr III) than the ZO and CFO pristine materials.",

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author = "Alharbi, \{F. F.\} and Salma Aman and Naseeb Ahmad and Muhammad Abdullah and Abid, \{Abdul Ghafoor\} and Sumaira Manzoor and Sergei Trukhanov and Sayyed, \{M. I.\} and Daria Tishkevich and Alex Trukhanov",

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doi = "10.1016/j.solidstatesciences.2023.107278",

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AU - Aman, Salma

AU - Ahmad, Naseeb

AU - Abdullah, Muhammad

AU - Abid, Abdul Ghafoor

AU - Manzoor, Sumaira

AU - Trukhanov, Sergei

AU - Sayyed, M. I.

AU - Tishkevich, Daria

AU - Trukhanov, Alex

PY - 2023/9

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N2 - A hydrothermal technique was used to create a CoFe2O4/ZnO (CFO/ZO) nanocomposite for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the nanohybrid, CoFe2O4 (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr into trivalent Cr. The results demonstrate that CFO exhibited a 91.20% photoreduction efficiency for Cr (VI) compared to CoFe2O4 (86.81%) and ZO (72.52%). This obtained rate constant for CFO, ZO and CFO/ZO are 0.020, 0.014 & 0.0255 min−1, respectively. The electrochemical results suggest that the CFO/ZO exhibited a smaller Rct value (2.718 Ω) than the CFO (5.97 Ω) and ZO (4.12 Ω). The outcome indicates that CFO/ZO can effectively detoxify the noxious chemical like Cr (VI) by photoreduction to a less hazardous state (Cr III) than the ZO and CFO pristine materials.

AB - A hydrothermal technique was used to create a CoFe2O4/ZnO (CFO/ZO) nanocomposite for the photoreduction of hexavalent chromium. To boost the photocatalytic efficiency of the nanohybrid, CoFe2O4 (CFO) nanoparticles were added to ZnO (ZO) nanoparticles. The photoreduction efficacy of the catalyst was measured for the conversion of hexavalent Cr into trivalent Cr. The results demonstrate that CFO exhibited a 91.20% photoreduction efficiency for Cr (VI) compared to CoFe2O4 (86.81%) and ZO (72.52%). This obtained rate constant for CFO, ZO and CFO/ZO are 0.020, 0.014 & 0.0255 min−1, respectively. The electrochemical results suggest that the CFO/ZO exhibited a smaller Rct value (2.718 Ω) than the CFO (5.97 Ω) and ZO (4.12 Ω). The outcome indicates that CFO/ZO can effectively detoxify the noxious chemical like Cr (VI) by photoreduction to a less hazardous state (Cr III) than the ZO and CFO pristine materials.

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