Spontaneous intra-electron transfer within rGO@Fe2O3-MnO catalyst promotes long-term NOx reduction at ambient conditions

dc.contributor.authorSharif, Hafiz Muhammad Adeel
dc.contributor.authorAsif, Muhammad
dc.contributor.authorWang, Yuwei
dc.contributor.authorHou, Ya-Nan
dc.contributor.authorYang, Bo
dc.contributor.authorXiao, Xu
dc.contributor.authorLi, Changping
dc.contributor.departmentAdvanced Membranes and Porous Materials Research Center
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.institutionResearch Center for Eco-Environmental Engineering, Dongguan University of Technology, Dongguan 523808, PR China
dc.contributor.institutionSchool of Electronic Science and Engineering, State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, Sichuan 610054, PR China
dc.contributor.institutionTianjin Key Laboratory of Aquatic Science and Technology, School of Environmental and Municipal Engineering, Tianjin Chengjian University, Tianjin 300384, PR China
dc.contributor.institutionCollege of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen 518060, PR China
dc.date.accessioned2022-09-20T11:04:46Z
dc.date.available2022-09-20T11:04:46Z
dc.date.issued2022-09-08
dc.date.published-online2022-09-08
dc.date.published-print2023-01
dc.description.abstractIron (Fe)-based catalysts are widely used for taming nitrogen oxides (NOx) containing flue gas, but the regeneration and long-term reusability remains a concern. The reusability can be acquired by external additives, and resultantly can not only increase the cost but can also add to process complexity as well as secondary pollutants. Herein, a self-sustainable material is designed to regenerate the catalyst for long-term reusability without adding to process complexity. The catalyst is based on reduced graphene-oxide impregnated by Fe2O3-MnO (rGO@Fe2O3-MnO; G-F-M) for spontaneous intra electron (e-)-transfer from Mn to Fe. The developed catalyst; G-M-F exhibited 93.7% NOx reduction, which suggests its high catalytic activity. The morphological and structure characterizations confirmed the Fe/Mn loading, contributing to e--transfer between Mn and Fe due to its conductivity. The synthesized G-F-M showed higher NOx reduction about 2.5 folds, than rGO@Fe2O3 (G-FeO) and rGO@MnOx (G-MnOx). The performance of G-M-F without and with an electrochemical system was also compared, and the difference was only 5%, which is an evidence of the spontaneous e- transfer between the Mn and Fe-NOx complex. The designed catalyst can be used for a long time without external assistance, and its efficiency was not affected significantly (<3.7%) in the presence of high oxygen contents (8%). The as-prepared G-M-F catalyst has great potential for executing a dual role NOx removal and self-regeneration of catalyst (SRC), promoting a sustainable remediation approach for large-scale applications.
dc.description.sponsorshipThis study was supported by the National Natural Science Foundation of China (Grant Nos. 22050410268, 51708356, 52070042).
dc.eprint.versionPost-print
dc.identifier.citationSharif, H. M. A., Asif, M. B., Wang, Y., Hou, Y.-N., Yang, B., Xiao, X., & Li, C. (2023). Spontaneous intra-electron transfer within rGO@Fe2O3-MnO catalyst promotes long-term NOx reduction at ambient conditions. Journal of Hazardous Materials, 441, 129951. https://doi.org/10.1016/j.jhazmat.2022.129951
dc.identifier.doi10.1016/j.jhazmat.2022.129951
dc.identifier.doi10.2139/ssrn.4148121
dc.identifier.issn0304-3894
dc.identifier.journalJournal of hazardous materials
dc.identifier.pages129951
dc.identifier.pmid36115094
dc.identifier.urihttp://hdl.handle.net/10754/681604
dc.identifier.volume441
dc.publisherElsevier BV
dc.relation.urlhttps://linkinghub.elsevier.com/retrieve/pii/S0304389422017459
dc.rightsNOTICE: this is the author’s version of a work that was accepted for publication in Journal of hazardous materials. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of hazardous materials, [441, , (2022-09-14)] DOI: 10.1016/j.jhazmat.2022.129951 . © 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.embargodate2024-09-14
dc.subjectReduced Graphene Oxide (Rgo)
dc.subjectNo(x) Reduction
dc.subjectRemoval And Regeneration
dc.subjectSpontaneous E(-) Transportation, Fe-mn Oxide
dc.titleSpontaneous intra-electron transfer within rGO@Fe2O3-MnO catalyst promotes long-term NOx reduction at ambient conditions
dc.typeArticle
display.details.left<span><h5>Embargo End Date</h5>2024-09-14<br><br><h5>Type</h5>Article<br><br><h5>Authors</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Sharif, Hafiz Muhammad Adeel,equals">Sharif, Hafiz Muhammad Adeel</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Asif, Muhammad,equals">Asif, Muhammad</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Wang, Yuwei,equals">Wang, Yuwei</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Hou, Ya-Nan,equals">Hou, Ya-Nan</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Yang, Bo,equals">Yang, Bo</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Xiao, Xu,equals">Xiao, Xu</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.author=Li, Changping,equals">Li, Changping</a><br><br><h5>KAUST Department</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.department=Advanced Membranes and Porous Materials Research Center,equals">Advanced Membranes and Porous Materials Research Center</a><br><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.department=Physical Science and Engineering (PSE) Division,equals">Physical Science and Engineering (PSE) Division</a><br><br><h5>Online Publication Date</h5>2022-09-08<br><br><h5>Print Publication Date</h5>2023-01<br><br><h5>Date</h5>2022-09-08</span>
display.details.right<span><h5>Abstract</h5>Iron (Fe)-based catalysts are widely used for taming nitrogen oxides (NOx) containing flue gas, but the regeneration and long-term reusability remains a concern. The reusability can be acquired by external additives, and resultantly can not only increase the cost but can also add to process complexity as well as secondary pollutants. Herein, a self-sustainable material is designed to regenerate the catalyst for long-term reusability without adding to process complexity. The catalyst is based on reduced graphene-oxide impregnated by Fe2O3-MnO (rGO@Fe2O3-MnO; G-F-M) for spontaneous intra electron (e-)-transfer from Mn to Fe. The developed catalyst; G-M-F exhibited 93.7% NOx reduction, which suggests its high catalytic activity. The morphological and structure characterizations confirmed the Fe/Mn loading, contributing to e--transfer between Mn and Fe due to its conductivity. The synthesized G-F-M showed higher NOx reduction about 2.5 folds, than rGO@Fe2O3 (G-FeO) and rGO@MnOx (G-MnOx). The performance of G-M-F without and with an electrochemical system was also compared, and the difference was only 5%, which is an evidence of the spontaneous e- transfer between the Mn and Fe-NOx complex. The designed catalyst can be used for a long time without external assistance, and its efficiency was not affected significantly (<3.7%) in the presence of high oxygen contents (8%). The as-prepared G-M-F catalyst has great potential for executing a dual role NOx removal and self-regeneration of catalyst (SRC), promoting a sustainable remediation approach for large-scale applications.<br><br><h5>Citation</h5>Sharif, H. M. A., Asif, M. B., Wang, Y., Hou, Y.-N., Yang, B., Xiao, X., & Li, C. (2023). Spontaneous intra-electron transfer within rGO@Fe2O3-MnO catalyst promotes long-term NOx reduction at ambient conditions. Journal of Hazardous Materials, 441, 129951. https://doi.org/10.1016/j.jhazmat.2022.129951<br><br><h5>Acknowledgements</h5>This study was supported by the National Natural Science Foundation of China (Grant Nos. 22050410268, 51708356, 52070042).<br><br><h5>Publisher</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.publisher=Elsevier BV,equals">Elsevier BV</a><br><br><h5>Journal</h5><a href="https://repository.kaust.edu.sa/search?spc.sf=dc.date.issued&spc.sd=DESC&f.journal=Journal of hazardous materials,equals">Journal of hazardous materials</a><br><br><h5>DOI</h5><a href="https://doi.org/10.1016/j.jhazmat.2022.129951">10.1016/j.jhazmat.2022.129951</a><br><a href="https://doi.org/10.2139/ssrn.4148121">10.2139/ssrn.4148121</a><br><br><h5>PubMed ID</h5><a href="https://www.ncbi.nlm.nih.gov/pubmed/36115094">36115094</a><br><br><h5>Additional Links</h5>https://linkinghub.elsevier.com/retrieve/pii/S0304389422017459</span>
kaust.personAsif, Muhammad
orcid.authorSharif, Hafiz Muhammad Adeel
orcid.authorAsif, Muhammad
orcid.authorWang, Yuwei
orcid.authorHou, Ya-Nan
orcid.authorYang, Bo
orcid.authorXiao, Xu
orcid.authorLi, Changping
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