Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst

In this work, a spinel oxide of MnFe(2)O(4) was used as the dielectric barrier discharge (DBD) catalyst for the remediation of pyrene-contaminated soil. The performances were investigated through tuning voltage, frequency, catalyst dosage, and soil moisture. Under the optimal conditions, such as the...

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Autores principales: Zeng, Zixu, Zhang, Yani, Xu, Xianlun, Hao, Shaoyun, Lei, Lecheng, Zhang, Xingwang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Chemistry
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9756416/
https://www.ncbi.nlm.nih.gov/pubmed/36545100
http://dx.doi.org/10.1039/d2ra06251h
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author Zeng, Zixu
Zhang, Yani
Xu, Xianlun
Hao, Shaoyun
Lei, Lecheng
Zhang, Xingwang
author_facet Zeng, Zixu
Zhang, Yani
Xu, Xianlun
Hao, Shaoyun
Lei, Lecheng
Zhang, Xingwang
author_sort Zeng, Zixu
collection PubMed
description In this work, a spinel oxide of MnFe(2)O(4) was used as the dielectric barrier discharge (DBD) catalyst for the remediation of pyrene-contaminated soil. The performances were investigated through tuning voltage, frequency, catalyst dosage, and soil moisture. Under the optimal conditions, such as the voltage of 10.0 kV, the discharge frequency of 1.0 kHz, MnFe(2)O(4) dosage of 0.3 g, air flow rate of 2.0 L min(−1), soil humidity of 5.3%, and degradation efficiency of DBD/MnFe(2)O(4) for pyrene could reach 79.26% after 10 min treatment, which was much higher than that of DBD for pyrene of 42.56%. The DBD/MnFe(2)O(4) system also showed the high degradation efficiency of other pollutants including phenanthrene, p-nitrophenol, and p-nitrophenol in contaminated soil. The enhancing mechanism of the DBD/MnFe(2)O(4) system was discussed.
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spelling pubmed-97564162022-12-20 Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst Zeng, Zixu Zhang, Yani Xu, Xianlun Hao, Shaoyun Lei, Lecheng Zhang, Xingwang RSC Adv Chemistry In this work, a spinel oxide of MnFe(2)O(4) was used as the dielectric barrier discharge (DBD) catalyst for the remediation of pyrene-contaminated soil. The performances were investigated through tuning voltage, frequency, catalyst dosage, and soil moisture. Under the optimal conditions, such as the voltage of 10.0 kV, the discharge frequency of 1.0 kHz, MnFe(2)O(4) dosage of 0.3 g, air flow rate of 2.0 L min(−1), soil humidity of 5.3%, and degradation efficiency of DBD/MnFe(2)O(4) for pyrene could reach 79.26% after 10 min treatment, which was much higher than that of DBD for pyrene of 42.56%. The DBD/MnFe(2)O(4) system also showed the high degradation efficiency of other pollutants including phenanthrene, p-nitrophenol, and p-nitrophenol in contaminated soil. The enhancing mechanism of the DBD/MnFe(2)O(4) system was discussed. The Royal Society of Chemistry 2022-12-16 /pmc/articles/PMC9756416/ /pubmed/36545100 http://dx.doi.org/10.1039/d2ra06251h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Zeng, Zixu
Zhang, Yani
Xu, Xianlun
Hao, Shaoyun
Lei, Lecheng
Zhang, Xingwang
Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title_full Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title_fullStr Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title_full_unstemmed Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title_short Degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the MnFe(2)O(4) catalyst
title_sort degradation of pyrene in contaminated soil by the dielectric barrier discharge combined with the mnfe(2)o(4) catalyst
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9756416/
https://www.ncbi.nlm.nih.gov/pubmed/36545100
http://dx.doi.org/10.1039/d2ra06251h
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