Surface-tuned hierarchical ɤ-Fe2O3–N-rGO nanohydrogel for efficient catalytic removal and electrochemical sensing of toxic nitro compounds
DC Field | Value | Language |
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dc.contributor.author | Ramu, A.G. | - |
dc.contributor.author | Salla, S. | - |
dc.contributor.author | Gopi, S. | - |
dc.contributor.author | Silambarasan, P. | - |
dc.contributor.author | Yang, D.J. | - |
dc.contributor.author | Song, M.J. | - |
dc.contributor.author | Ali, H.M. | - |
dc.contributor.author | Salem, M.Z.M. | - |
dc.contributor.author | Choi, D. | - |
dc.date.available | 2021-04-02T01:40:32Z | - |
dc.date.created | 2021-01-20 | - |
dc.date.issued | 2021-04 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/80627 | - |
dc.description.abstract | 4- Nitrophenol (4-NP) is a top rated hazardous environmental pollutant and secondary explosive chemicals. For the sake of ecology and environment safety, the catalytic reduction and detection of 4-NP is highly important. In this work, ɤ-Fe2O3-nitrogen doped rGO (ɤ-Fe2O3–N-rGO) nanohydrogel was synthesized by green hydrothermal method. The morphology and phase purity of prepared ɤ-Fe2O3–N-rGO nanohydrogel were confirmed by various analytical (SEM, TEM, XRD, and XPS) and electrochemical techniques. The morphological structure of ɤ-Fe2O3–N-rGO nanohydrogel confirmed that the nanocrystals are well covered over the 2D N-rGO layer. Further, ɤ-Fe2O3–N-rGO nanohydrogel was applied for the catalytic reduction and electrochemical detection of ecotoxic 4-NP. A low cost, ɤ-Fe2O3–N-rGO nanohydrogel displayed an excellent catalytic activity, high recyclability (>5 cycles) and high conversion efficiency of 4-NP to 4-Aminophenol (4-AP). In addition, ɤ-Fe2O3–N-rGO nanohydrogel modified GCE displayed a wide linear sensing range (0.1–1000 μM), and a low detection limit (LOD) of 0.1 μM with excellent sensitivity, high selectivity (<1.2%) and good stability (>4 weeks). The developed sensor electrode shows the low reduction potential of −0.3 V and −0.60 V for the determination of 4-NP. The proposed ɤ-Fe2O3–N-rGO nanohydrogel is promising catalyst for the detection and removal of toxic aromatic nitro compounds in real site applications. © 2020 Elsevier Ltd | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.relation.isPartOf | Chemosphere | - |
dc.title | Surface-tuned hierarchical ɤ-Fe2O3–N-rGO nanohydrogel for efficient catalytic removal and electrochemical sensing of toxic nitro compounds | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000615571300062 | - |
dc.identifier.doi | 10.1016/j.chemosphere.2020.128853 | - |
dc.identifier.bibliographicCitation | Chemosphere, v.268 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.scopusid | 2-s2.0-85097405743 | - |
dc.citation.title | Chemosphere | - |
dc.citation.volume | 268 | - |
dc.contributor.affiliatedAuthor | Gopi, S. | - |
dc.type.docType | Article | - |
dc.subject.keywordAuthor | 2D-graphene oxide | - |
dc.subject.keywordAuthor | Catalytic reduction | - |
dc.subject.keywordAuthor | Electrochemical sensor | - |
dc.subject.keywordAuthor | Nanohydrogel | - |
dc.subject.keywordAuthor | Spinel nanocrystals | - |
dc.subject.keywordPlus | Catalyst activity | - |
dc.subject.keywordPlus | Chemical detection | - |
dc.subject.keywordPlus | Doping (additives) | - |
dc.subject.keywordPlus | Explosives | - |
dc.subject.keywordPlus | Hematite | - |
dc.subject.keywordPlus | Morphology | - |
dc.subject.keywordPlus | Nanocatalysts | - |
dc.subject.keywordPlus | Reduction | - |
dc.subject.keywordPlus | Aromatic nitro compounds | - |
dc.subject.keywordPlus | ELectrochemical detection | - |
dc.subject.keywordPlus | Electrochemical sensing | - |
dc.subject.keywordPlus | Electrochemical techniques | - |
dc.subject.keywordPlus | Environmental pollutants | - |
dc.subject.keywordPlus | High conversion efficiency | - |
dc.subject.keywordPlus | Hydrothermal methods | - |
dc.subject.keywordPlus | Morphological structures | - |
dc.subject.keywordPlus | Reduced Graphene Oxide | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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