Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S
Abstract Azorubin S (ARS) represents one of the most common and frequently-utilized toxic azo dyes produced from industrial activities. While various conventional treatment techniques could not effectively eliminate ARS from water, heterogeneous metal-based catalyst coupled with monopersulfate (MPS)...
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| Format: | Article |
| Language: | English |
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BMC
2022-12-01
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| Series: | Sustainable Environment Research |
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| Online Access: | https://doi.org/10.1186/s42834-022-00158-3 |
| _version_ | 1811203716536074240 |
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| author | Ta Cong Khiem Duong Dinh Tuan Eilhann Kwon Bui Xuan Thanh Yiu Fai Tsang Venkata Subbaiah Munagapati Jet-Chau Wen Chechia Hu Kun-Yi Andrew Lin |
| author_facet | Ta Cong Khiem Duong Dinh Tuan Eilhann Kwon Bui Xuan Thanh Yiu Fai Tsang Venkata Subbaiah Munagapati Jet-Chau Wen Chechia Hu Kun-Yi Andrew Lin |
| author_sort | Ta Cong Khiem |
| collection | DOAJ |
| description | Abstract Azorubin S (ARS) represents one of the most common and frequently-utilized toxic azo dyes produced from industrial activities. While various conventional treatment techniques could not effectively eliminate ARS from water, heterogeneous metal-based catalyst coupled with monopersulfate (MPS) is a highly-efficient process for eliminating ARS, in which tricobalt tetroxide (Co3O4) has been attracted increasing attention as a preeminent MPS activator due to its outstanding physicochemical properties. However, the nanoscale Co3O4 particles usually pose a limitation of serious agglomeration in the aqueous environment, thus lowering their efficiency. Thus, developing an easy-synthesized and exceptionally efficient Co3O4-based catalyst is crucially paramount. Therefore, in this work, a special hollow-structured oval-like cobalt oxide (abbreviated as HOCO) was successfully constructed using Co-metal organic framework as a precursor, which was then utilized for catalyzing activation of MPS to degrade ARS. This as-obtained HOCO exhibited distinct physicochemical characteristics from commercially-available Co3O4, which subsequently resulted in superior activities for MPS activation in ARS degradation. Specifically, 100% of ARS could be degraded in 30 min with a corresponding reaction kinetic of 0.22 min− 1 by HOCO + MPS system. SO4 •– radicals were validated to be primary reactive species for ARS degradation while the degradation pathway of ARS was also elucidated. This study further provides insightful information about the development of novel hollow-structured Co3O4-based catalyst for catalyzing activation of MPS to remove toxic dyes from water. |
| first_indexed | 2024-04-12T02:59:32Z |
| format | Article |
| id | doaj.art-70914ff22ce94c6eac16ebbff400d28f |
| institution | Directory Open Access Journal |
| issn | 2468-2039 |
| language | English |
| last_indexed | 2024-04-12T02:59:32Z |
| publishDate | 2022-12-01 |
| publisher | BMC |
| record_format | Article |
| series | Sustainable Environment Research |
| spelling | doaj.art-70914ff22ce94c6eac16ebbff400d28f2022-12-22T03:50:42ZengBMCSustainable Environment Research2468-20392022-12-0132111510.1186/s42834-022-00158-3Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin STa Cong Khiem0Duong Dinh Tuan1Eilhann Kwon2Bui Xuan Thanh3Yiu Fai Tsang4Venkata Subbaiah Munagapati5Jet-Chau Wen6Chechia Hu7Kun-Yi Andrew Lin8Department of Environmental Engineering, National Chung Hsing UniversityInternational School, Thai Nguyen UniversityDepartment of Earth Resources and Environmental Engineering, Hanyang UniversityFaculty of Environment and Natural Resources, Ho Chi Minh City University of TechnologyDepartment of Science and Environmental Studies, The Education University of Hong KongResearch Center for Soil & Water Resources and Natural Disaster Prevention, National Yunlin University of Science and TechnologyResearch Center for Soil & Water Resources and Natural Disaster Prevention, National Yunlin University of Science and TechnologyDepartment of Chemical Engineering, National Taiwan University of Science and TechnologyDepartment of Environmental Engineering, National Chung Hsing UniversityAbstract Azorubin S (ARS) represents one of the most common and frequently-utilized toxic azo dyes produced from industrial activities. While various conventional treatment techniques could not effectively eliminate ARS from water, heterogeneous metal-based catalyst coupled with monopersulfate (MPS) is a highly-efficient process for eliminating ARS, in which tricobalt tetroxide (Co3O4) has been attracted increasing attention as a preeminent MPS activator due to its outstanding physicochemical properties. However, the nanoscale Co3O4 particles usually pose a limitation of serious agglomeration in the aqueous environment, thus lowering their efficiency. Thus, developing an easy-synthesized and exceptionally efficient Co3O4-based catalyst is crucially paramount. Therefore, in this work, a special hollow-structured oval-like cobalt oxide (abbreviated as HOCO) was successfully constructed using Co-metal organic framework as a precursor, which was then utilized for catalyzing activation of MPS to degrade ARS. This as-obtained HOCO exhibited distinct physicochemical characteristics from commercially-available Co3O4, which subsequently resulted in superior activities for MPS activation in ARS degradation. Specifically, 100% of ARS could be degraded in 30 min with a corresponding reaction kinetic of 0.22 min− 1 by HOCO + MPS system. SO4 •– radicals were validated to be primary reactive species for ARS degradation while the degradation pathway of ARS was also elucidated. This study further provides insightful information about the development of novel hollow-structured Co3O4-based catalyst for catalyzing activation of MPS to remove toxic dyes from water.https://doi.org/10.1186/s42834-022-00158-3Azorubin SMonopersulfateHollowCobalt OxideActivation |
| spellingShingle | Ta Cong Khiem Duong Dinh Tuan Eilhann Kwon Bui Xuan Thanh Yiu Fai Tsang Venkata Subbaiah Munagapati Jet-Chau Wen Chechia Hu Kun-Yi Andrew Lin Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S Sustainable Environment Research Azorubin S Monopersulfate Hollow Cobalt Oxide Activation |
| title | Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S |
| title_full | Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S |
| title_fullStr | Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S |
| title_full_unstemmed | Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S |
| title_short | Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S |
| title_sort | hollow and oval configured ultrafine co3o4 as a highly efficient activator of monopersulfate for catalytic elimination of azorubin s |
| topic | Azorubin S Monopersulfate Hollow Cobalt Oxide Activation |
| url | https://doi.org/10.1186/s42834-022-00158-3 |
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