Metal oxide/activated carbon composites for the reactive adsorption and catalytic oxidation of formaldehyde and toluene in air
DC Field | Value | Language |
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dc.contributor.author | Kim, Won-Ki | - |
dc.contributor.author | Vikrant, Kumar | - |
dc.contributor.author | Younis, Sherif A. | - |
dc.contributor.author | Kim, Ki-Hyun | - |
dc.contributor.author | Heynderickx, Philippe M. | - |
dc.date.accessioned | 2023-05-03T10:11:36Z | - |
dc.date.available | 2023-05-03T10:11:36Z | - |
dc.date.created | 2023-02-08 | - |
dc.date.issued | 2023-02 | - |
dc.identifier.issn | 0959-6526 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/185062 | - |
dc.description.abstract | The synergistic effect of ‘reactive adsorption and catalytic oxidation (RACO)’ has been investigated to develop an efficient method to remove volatile organic compounds (VOCs: formaldehyde (FA) + toluene) using an amorphous-manganese dioxide-activated carbon (Am-MnO2-AC) composite. The RACO of FA and toluene onto Am-MnO2-AC was examined individually and as a mixture at multiple-isothermal conditions from room temperature (RT) to 300 °C. At RT, the values for 10% adsorption breakthrough volume (BTV10%) of single FA and toluene by Am-MnO2-AC were 45.9 and 152 L g−1, respectively, approx. 1.3-fold higher than those for their mixture. The BTV10% values for FA measured in single and mixture were 270–280 times higher than their pristine AC counterparts. The RACO performance of Am-MnO2-AC was investigated more intensively against a dual component system in reference to its crystalline forms (e.g., δ-MnO2) and two other metal-doped forms (i.e., cobalt and silver). Accordingly, Am-MnO2-AC exhibited the highest catalytic reactivity so as to achieve the complete oxidation of FA and toluene (as individual components) into carbon dioxide (CO2) at 100 and 275 °C, respectively. The thermal catalytic oxidation of FA and toluene onto Am-MnO2-AC was suggested to follow the Langmuir-Hinshelwood mechanism. The enhanced RACO performance of Am-MnO2-AC was ascribed to its higher surface porosity and higher concentration of oxygen vacancies (e.g., Mn3+/Mn4+ of 0.707 and adsorbed oxygen (OA)/lattice oxygen (OL) of 1.79). The present study is expected to provide deep insights into the practical application of metal oxide/AC composites for cleaner indoor air quality. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | Metal oxide/activated carbon composites for the reactive adsorption and catalytic oxidation of formaldehyde and toluene in air | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Ki-Hyun | - |
dc.identifier.doi | 10.1016/j.jclepro.2023.135925 | - |
dc.identifier.scopusid | 2-s2.0-85146438710 | - |
dc.identifier.wosid | 000923813100001 | - |
dc.identifier.bibliographicCitation | JOURNAL OF CLEANER PRODUCTION, v.387, pp.1 - 17 | - |
dc.relation.isPartOf | JOURNAL OF CLEANER PRODUCTION | - |
dc.citation.title | JOURNAL OF CLEANER PRODUCTION | - |
dc.citation.volume | 387 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 17 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Green & Sustainable Science & Technology | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | ACTIVATED CARBON | - |
dc.subject.keywordPlus | LATTICE OXYGEN | - |
dc.subject.keywordPlus | MNO2 | - |
dc.subject.keywordPlus | TEMPERATURE | - |
dc.subject.keywordPlus | ALPHA-MNO2 | - |
dc.subject.keywordPlus | VOCS | - |
dc.subject.keywordPlus | CALCINATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | NANORODS | - |
dc.subject.keywordAuthor | Manganese dioxide catalyst | - |
dc.subject.keywordAuthor | Activated carbon | - |
dc.subject.keywordAuthor | Reactive adsorption | - |
dc.subject.keywordAuthor | Thermal catalysis | - |
dc.subject.keywordAuthor | Volatile organic compounds | - |
dc.identifier.url | https://www.sciencedirect.com/science/article/pii/S0959652623000835?via%3Dihub | - |
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