Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications

Yufei Zhang; Junjie Zheng; Jiejie Nan; Chengjie Gai; Qian Shao; Vignesh Murugadoss; Srihari K. Maganti; Nithesh Naik; Hassan Algadi; Mina Huang; Ben Bin Xu; Zhanhu Guo

doi:10.1016/j.partic.2022.05.010

Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications

Yufei Zhang, Junjie Zheng, Jiejie Nan, Chengjie Gai, Qian Shao^*, Vignesh Murugadoss, Srihari K. Maganti, Nithesh Naik, Hassan Algadi, Mina Huang, Ben Bin Xu^*, Zhanhu Guo^*

^*Corresponding author for this work

Mechanical and Construction Engineering Department

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Abstract

A visible light-active photoelectrocatalyst, ZnFe-layered double oxide (LDO)/cobalt(II,III) oxide (Co3O4) composites were obtained by calcining the Co loaded ZnFe-layered double hydroxide (LDH) prepared by a hydrothermal and microwave hydrothermal method. The morphological studies revealed that the ZnFe-LDO/Co3O4 composites exhibited a flower-like structure comprising Co3O4 nanowires and ZnFe-LDO nanosheets. Further, when the mass ratio of Co(NO3)2·6H2O/LDH was 1:1.8 and the calcination temperature was 550 °C, the ZnFe-LDO/Co3O4 composite exhibited 93.3% degradation efficiency for methylene blue (MB) at the applied voltage of 1.0 V under visible light after 3 h. Furthermore, the Mott-Schottky model experiments showed that the formation of a p-n heterojunction between ZnFe-LDO and Co3O4 could effectively inhibit the recombination of electrons and holes in the photoelectrocatalytic process. Meanwhile, free radical scavenging experiments showed that the active radicals of ⋅OH played an important role in the degradation of MB. Therefore, the photoelectrocatalytic effect of ZnFe-LDO/Co3O4 provides a simple and effective strategy for the removal of organic pollutants.

Original language	English
Pages (from-to)	141-155
Number of pages	15
Journal	Particuology
Volume	74
Early online date	7 Jun 2022
DOIs	https://doi.org/10.1016/j.partic.2022.05.010
Publication status	Published - 1 Mar 2023

Keywords

Methylene blue
Photoelectrocatalytic
ZnFe-LDO/Co O
p-n heterojunction

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10.1016/j.partic.2022.05.010

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Zhang, Y., Zheng, J., Nan, J., Gai, C., Shao, Q., Murugadoss, V., Maganti, S. K., Naik, N., Algadi, H., Huang, M., Xu, B. B., & Guo, Z. (2023). Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications. Particuology, 74, 141-155. https://doi.org/10.1016/j.partic.2022.05.010

@article{027cb8c065ef4cc29767b6262f0e77a7,

title = "Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications",

abstract = "A visible light-active photoelectrocatalyst, ZnFe-layered double oxide (LDO)/cobalt(II,III) oxide (Co3O4) composites were obtained by calcining the Co loaded ZnFe-layered double hydroxide (LDH) prepared by a hydrothermal and microwave hydrothermal method. The morphological studies revealed that the ZnFe-LDO/Co3O4 composites exhibited a flower-like structure comprising Co3O4 nanowires and ZnFe-LDO nanosheets. Further, when the mass ratio of Co(NO3)2·6H2O/LDH was 1:1.8 and the calcination temperature was 550 °C, the ZnFe-LDO/Co3O4 composite exhibited 93.3% degradation efficiency for methylene blue (MB) at the applied voltage of 1.0 V under visible light after 3 h. Furthermore, the Mott-Schottky model experiments showed that the formation of a p-n heterojunction between ZnFe-LDO and Co3O4 could effectively inhibit the recombination of electrons and holes in the photoelectrocatalytic process. Meanwhile, free radical scavenging experiments showed that the active radicals of ⋅OH played an important role in the degradation of MB. Therefore, the photoelectrocatalytic effect of ZnFe-LDO/Co3O4 provides a simple and effective strategy for the removal of organic pollutants.",

keywords = "Methylene blue, Photoelectrocatalytic, ZnFe-LDO/Co O, p-n heterojunction",

author = "Yufei Zhang and Junjie Zheng and Jiejie Nan and Chengjie Gai and Qian Shao and Vignesh Murugadoss and Maganti, {Srihari K.} and Nithesh Naik and Hassan Algadi and Mina Huang and Xu, {Ben Bin} and Zhanhu Guo",

year = "2023",

month = mar,

day = "1",

doi = "10.1016/j.partic.2022.05.010",

language = "English",

volume = "74",

pages = "141--155",

journal = "Particuology",

issn = "1674-2001",

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Zhang, Y, Zheng, J, Nan, J, Gai, C, Shao, Q, Murugadoss, V, Maganti, SK, Naik, N, Algadi, H, Huang, M, Xu, BB & Guo, Z 2023, 'Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications', Particuology, vol. 74, pp. 141-155. https://doi.org/10.1016/j.partic.2022.05.010

Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications. / Zhang, Yufei; Zheng, Junjie; Nan, Jiejie et al.
In: Particuology, Vol. 74, 01.03.2023, p. 141-155.

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

TY - JOUR

T1 - Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications

AU - Zhang, Yufei

AU - Zheng, Junjie

AU - Nan, Jiejie

AU - Gai, Chengjie

AU - Shao, Qian

AU - Murugadoss, Vignesh

AU - Maganti, Srihari K.

AU - Naik, Nithesh

AU - Algadi, Hassan

AU - Huang, Mina

AU - Xu, Ben Bin

AU - Guo, Zhanhu

PY - 2023/3/1

Y1 - 2023/3/1

N2 - A visible light-active photoelectrocatalyst, ZnFe-layered double oxide (LDO)/cobalt(II,III) oxide (Co3O4) composites were obtained by calcining the Co loaded ZnFe-layered double hydroxide (LDH) prepared by a hydrothermal and microwave hydrothermal method. The morphological studies revealed that the ZnFe-LDO/Co3O4 composites exhibited a flower-like structure comprising Co3O4 nanowires and ZnFe-LDO nanosheets. Further, when the mass ratio of Co(NO3)2·6H2O/LDH was 1:1.8 and the calcination temperature was 550 °C, the ZnFe-LDO/Co3O4 composite exhibited 93.3% degradation efficiency for methylene blue (MB) at the applied voltage of 1.0 V under visible light after 3 h. Furthermore, the Mott-Schottky model experiments showed that the formation of a p-n heterojunction between ZnFe-LDO and Co3O4 could effectively inhibit the recombination of electrons and holes in the photoelectrocatalytic process. Meanwhile, free radical scavenging experiments showed that the active radicals of ⋅OH played an important role in the degradation of MB. Therefore, the photoelectrocatalytic effect of ZnFe-LDO/Co3O4 provides a simple and effective strategy for the removal of organic pollutants.

AB - A visible light-active photoelectrocatalyst, ZnFe-layered double oxide (LDO)/cobalt(II,III) oxide (Co3O4) composites were obtained by calcining the Co loaded ZnFe-layered double hydroxide (LDH) prepared by a hydrothermal and microwave hydrothermal method. The morphological studies revealed that the ZnFe-LDO/Co3O4 composites exhibited a flower-like structure comprising Co3O4 nanowires and ZnFe-LDO nanosheets. Further, when the mass ratio of Co(NO3)2·6H2O/LDH was 1:1.8 and the calcination temperature was 550 °C, the ZnFe-LDO/Co3O4 composite exhibited 93.3% degradation efficiency for methylene blue (MB) at the applied voltage of 1.0 V under visible light after 3 h. Furthermore, the Mott-Schottky model experiments showed that the formation of a p-n heterojunction between ZnFe-LDO and Co3O4 could effectively inhibit the recombination of electrons and holes in the photoelectrocatalytic process. Meanwhile, free radical scavenging experiments showed that the active radicals of ⋅OH played an important role in the degradation of MB. Therefore, the photoelectrocatalytic effect of ZnFe-LDO/Co3O4 provides a simple and effective strategy for the removal of organic pollutants.

KW - Methylene blue

KW - Photoelectrocatalytic

KW - ZnFe-LDO/Co O

KW - p-n heterojunction

UR - http://www.scopus.com/inward/record.url?scp=85132936586&partnerID=8YFLogxK

U2 - 10.1016/j.partic.2022.05.010

DO - 10.1016/j.partic.2022.05.010

M3 - Article

SN - 1674-2001

VL - 74

SP - 141

EP - 155

JO - Particuology

JF - Particuology

ER -

Influence of mass ratio and calcination temperature on physical and photoelectrochemical properties of ZnFe-layered double oxide/cobalt oxide heterojunction semiconductor for dye degradation applications

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Keywords

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