Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation

Liquan Xia; Guifeng Chen; Wenbo Li; Minglong Gao; Jiaxin Zhao

doi:doi:10.11648/j.jeece.20200504.11

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Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation

Liquan Xia, Guifeng Chen, Wenbo Li, Minglong Gao, Jiaxin Zhao

Published in Journal of Energy, Environmental & Chemical Engineering (Volume 5, Issue 4)

Received: 16 October 2020 Accepted: 2 November 2020 Published: 27 November 2020

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Abstract

In order to improve the performance of the catalyst applied in ozonation, this work show the hydrothermal synthesis routine to prepare MnO₂ with different oxygen vacancy content. The α-MnO₂ was aminated and further processed with doped graphene oxide (GO) to obtain high oxygen vacancy content α-MnO₂-NH₂-GO, which was subsequently used for catalyzing ozonation phenol degradate. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Brunner-Emmet-Teller (BET), H₂-temperature-programmed reduction (H₂-TPR), scanning electron microscopy (SEM), etc. Characterization and experimental results showed that the oxygen vacancy content has an important effect on the catalytic performance of the catalyst, MnO₂ with low average oxidation state showed better catalytic ozonation performance. The coexistence of Mn³⁺ and Mn⁴⁺ have great significant role for the continuous generation of free radicals and the restoration of oxygen vacancies. The doping of GO can increase the electron transfer rate, and improve the catalytic performance. The catalytic performance of α-MnO₂-NH₂-GO is better than α-MnO₂, phenol removal rate can achieve more than 99% within 30 min, and superoxide radicals can be determined by different free radical trapping agents. The results of main active oxygen and reaction kinetics research showed that the degradation of phenol is a first-order reaction whether α-MnO₂-NH₂-GO or α-MnO₂ is used as a catalyst.

Published in	Journal of Energy, Environmental & Chemical Engineering (Volume 5, Issue 4)
DOI	10.11648/j.jeece.20200504.11
Page(s)	48-56
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2020. Published by Science Publishing Group

Keywords

MnO₂, Catalyst, Oxygen Vacancy, Ozonation, Phenol

References

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APA Style

Liquan Xia, Guifeng Chen, Wenbo Li, Minglong Gao, Jiaxin Zhao. (2020). Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. Journal of Energy, Environmental & Chemical Engineering, 5(4), 48-56. https://doi.org/10.11648/j.jeece.20200504.11

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ACS Style

Liquan Xia; Guifeng Chen; Wenbo Li; Minglong Gao; Jiaxin Zhao. Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. J. Energy Environ. Chem. Eng. 2020, 5(4), 48-56. doi: 10.11648/j.jeece.20200504.11

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AMA Style

Liquan Xia, Guifeng Chen, Wenbo Li, Minglong Gao, Jiaxin Zhao. Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. J Energy Environ Chem Eng. 2020;5(4):48-56. doi: 10.11648/j.jeece.20200504.11

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@article{10.11648/j.jeece.20200504.11,
  author = {Liquan Xia and Guifeng Chen and Wenbo Li and Minglong Gao and Jiaxin Zhao},
  title = {Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation},
  journal = {Journal of Energy, Environmental & Chemical Engineering},
  volume = {5},
  number = {4},
  pages = {48-56},
  doi = {10.11648/j.jeece.20200504.11},
  url = {https://doi.org/10.11648/j.jeece.20200504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeece.20200504.11},
  abstract = {In order to improve the performance of the catalyst applied in ozonation, this work show the hydrothermal synthesis routine to prepare MnO2 with different oxygen vacancy content. The α-MnO2 was aminated and further processed with doped graphene oxide (GO) to obtain high oxygen vacancy content α-MnO2-NH2-GO, which was subsequently used for catalyzing ozonation phenol degradate. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Brunner-Emmet-Teller (BET), H2-temperature-programmed reduction (H2-TPR), scanning electron microscopy (SEM), etc. Characterization and experimental results showed that the oxygen vacancy content has an important effect on the catalytic performance of the catalyst, MnO2 with low average oxidation state showed better catalytic ozonation performance. The coexistence of Mn3+ and Mn4+ have great significant role for the continuous generation of free radicals and the restoration of oxygen vacancies. The doping of GO can increase the electron transfer rate, and improve the catalytic performance. The catalytic performance of α-MnO2-NH2-GO is better than α-MnO2, phenol removal rate can achieve more than 99% within 30 min, and superoxide radicals can be determined by different free radical trapping agents. The results of main active oxygen and reaction kinetics research showed that the degradation of phenol is a first-order reaction whether α-MnO2-NH2-GO or α-MnO2 is used as a catalyst.},
 year = {2020}
}

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TY  - JOUR
T1  - Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation
AU  - Liquan Xia
AU  - Guifeng Chen
AU  - Wenbo Li
AU  - Minglong Gao
AU  - Jiaxin Zhao
Y1  - 2020/11/27
PY  - 2020
N1  - https://doi.org/10.11648/j.jeece.20200504.11
DO  - 10.11648/j.jeece.20200504.11
T2  - Journal of Energy, Environmental & Chemical Engineering
JF  - Journal of Energy, Environmental & Chemical Engineering
JO  - Journal of Energy, Environmental & Chemical Engineering
SP  - 48
EP  - 56
PB  - Science Publishing Group
SN  - 2637-434X
UR  - https://doi.org/10.11648/j.jeece.20200504.11
AB  - In order to improve the performance of the catalyst applied in ozonation, this work show the hydrothermal synthesis routine to prepare MnO2 with different oxygen vacancy content. The α-MnO2 was aminated and further processed with doped graphene oxide (GO) to obtain high oxygen vacancy content α-MnO2-NH2-GO, which was subsequently used for catalyzing ozonation phenol degradate. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Brunner-Emmet-Teller (BET), H2-temperature-programmed reduction (H2-TPR), scanning electron microscopy (SEM), etc. Characterization and experimental results showed that the oxygen vacancy content has an important effect on the catalytic performance of the catalyst, MnO2 with low average oxidation state showed better catalytic ozonation performance. The coexistence of Mn3+ and Mn4+ have great significant role for the continuous generation of free radicals and the restoration of oxygen vacancies. The doping of GO can increase the electron transfer rate, and improve the catalytic performance. The catalytic performance of α-MnO2-NH2-GO is better than α-MnO2, phenol removal rate can achieve more than 99% within 30 min, and superoxide radicals can be determined by different free radical trapping agents. The results of main active oxygen and reaction kinetics research showed that the degradation of phenol is a first-order reaction whether α-MnO2-NH2-GO or α-MnO2 is used as a catalyst.
VL  - 5
IS  - 4
ER  -

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Author Information

Liquan Xia

China Coal Research Institute, Beijing, China
Guifeng Chen

China Coal Research Institute Company Ltd., Beijing, China
Wenbo Li

China Coal Research Institute Company Ltd., Beijing, China
Minglong Gao

China Coal Research Institute Company Ltd., Beijing, China
Jiaxin Zhao

China Coal Research Institute, Beijing, China

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APA Style

Liquan Xia, Guifeng Chen, Wenbo Li, Minglong Gao, Jiaxin Zhao. (2020). Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. Journal of Energy, Environmental & Chemical Engineering, 5(4), 48-56. https://doi.org/10.11648/j.jeece.20200504.11

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ACS Style

Liquan Xia; Guifeng Chen; Wenbo Li; Minglong Gao; Jiaxin Zhao. Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. J. Energy Environ. Chem. Eng. 2020, 5(4), 48-56. doi: 10.11648/j.jeece.20200504.11

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AMA Style

Liquan Xia, Guifeng Chen, Wenbo Li, Minglong Gao, Jiaxin Zhao. Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation. J Energy Environ Chem Eng. 2020;5(4):48-56. doi: 10.11648/j.jeece.20200504.11

Copy | Download

@article{10.11648/j.jeece.20200504.11,
  author = {Liquan Xia and Guifeng Chen and Wenbo Li and Minglong Gao and Jiaxin Zhao},
  title = {Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation},
  journal = {Journal of Energy, Environmental & Chemical Engineering},
  volume = {5},
  number = {4},
  pages = {48-56},
  doi = {10.11648/j.jeece.20200504.11},
  url = {https://doi.org/10.11648/j.jeece.20200504.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.jeece.20200504.11},
  abstract = {In order to improve the performance of the catalyst applied in ozonation, this work show the hydrothermal synthesis routine to prepare MnO2 with different oxygen vacancy content. The α-MnO2 was aminated and further processed with doped graphene oxide (GO) to obtain high oxygen vacancy content α-MnO2-NH2-GO, which was subsequently used for catalyzing ozonation phenol degradate. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Brunner-Emmet-Teller (BET), H2-temperature-programmed reduction (H2-TPR), scanning electron microscopy (SEM), etc. Characterization and experimental results showed that the oxygen vacancy content has an important effect on the catalytic performance of the catalyst, MnO2 with low average oxidation state showed better catalytic ozonation performance. The coexistence of Mn3+ and Mn4+ have great significant role for the continuous generation of free radicals and the restoration of oxygen vacancies. The doping of GO can increase the electron transfer rate, and improve the catalytic performance. The catalytic performance of α-MnO2-NH2-GO is better than α-MnO2, phenol removal rate can achieve more than 99% within 30 min, and superoxide radicals can be determined by different free radical trapping agents. The results of main active oxygen and reaction kinetics research showed that the degradation of phenol is a first-order reaction whether α-MnO2-NH2-GO or α-MnO2 is used as a catalyst.},
 year = {2020}
}

Copy | Download

TY  - JOUR
T1  - Influence of Oxygen Vacancy in Mangan-based Catalyst on Phenol Removal Via Catalytic Ozonation
AU  - Liquan Xia
AU  - Guifeng Chen
AU  - Wenbo Li
AU  - Minglong Gao
AU  - Jiaxin Zhao
Y1  - 2020/11/27
PY  - 2020
N1  - https://doi.org/10.11648/j.jeece.20200504.11
DO  - 10.11648/j.jeece.20200504.11
T2  - Journal of Energy, Environmental & Chemical Engineering
JF  - Journal of Energy, Environmental & Chemical Engineering
JO  - Journal of Energy, Environmental & Chemical Engineering
SP  - 48
EP  - 56
PB  - Science Publishing Group
SN  - 2637-434X
UR  - https://doi.org/10.11648/j.jeece.20200504.11
AB  - In order to improve the performance of the catalyst applied in ozonation, this work show the hydrothermal synthesis routine to prepare MnO2 with different oxygen vacancy content. The α-MnO2 was aminated and further processed with doped graphene oxide (GO) to obtain high oxygen vacancy content α-MnO2-NH2-GO, which was subsequently used for catalyzing ozonation phenol degradate. The catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), Brunner-Emmet-Teller (BET), H2-temperature-programmed reduction (H2-TPR), scanning electron microscopy (SEM), etc. Characterization and experimental results showed that the oxygen vacancy content has an important effect on the catalytic performance of the catalyst, MnO2 with low average oxidation state showed better catalytic ozonation performance. The coexistence of Mn3+ and Mn4+ have great significant role for the continuous generation of free radicals and the restoration of oxygen vacancies. The doping of GO can increase the electron transfer rate, and improve the catalytic performance. The catalytic performance of α-MnO2-NH2-GO is better than α-MnO2, phenol removal rate can achieve more than 99% within 30 min, and superoxide radicals can be determined by different free radical trapping agents. The results of main active oxygen and reaction kinetics research showed that the degradation of phenol is a first-order reaction whether α-MnO2-NH2-GO or α-MnO2 is used as a catalyst.
VL  - 5
IS  - 4
ER  -

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