Synthesis of hierarchically structured T-ZnO-rGO-PEI composite and their catalytic removal of colour and colourless phenolic compounds
DC Field | Value | Language |
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dc.contributor.author | Ramu, A. G. | - |
dc.contributor.author | Yang, D. J. | - |
dc.contributor.author | Al Olayan, Ebtesam M. | - |
dc.contributor.author | AlAmri, Ohoud D. | - |
dc.contributor.author | Aloufi, Abeer S. | - |
dc.contributor.author | Almushawwah, Jory Omer | - |
dc.contributor.author | Choi, Dongjin | - |
dc.date.accessioned | 2021-09-02T02:42:40Z | - |
dc.date.available | 2021-09-02T02:42:40Z | - |
dc.date.created | 2021-03-11 | - |
dc.date.issued | 2021-03 | - |
dc.identifier.issn | 0045-6535 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/15598 | - |
dc.description.abstract | Phenolic compounds bisphenol A (BPA) and 4-nitrophenol (4-NP) are the prime water contaminants. As reported, these compounds are some of the highly hazardous ones to the human and living species. In this study, T-ZnO-rGO-PEI composite was synthesized employing hydrothermal method and the obtained composite samples were systematically characterized by FTIR, XPS, FE-SEM and HR-TEM studies. The FTIR, XPS analysis confirmed the successful surface modification of T-ZnO-rGO-PEI composite. The FE-SEM morphology confirmed the formation of ZnO (arm length about 2.5 mu m) tetrapod structured in synthesized T-ZnO-rGO-PEI composite. The thickness of formed ZnO arm (0.44 mu m) was increased after the polymer coating which confirmed the successful surface modification by PEI polymer. The HR-TEM images confirm the uniform coating of PEI polymer on T-ZnO-rGO surface. The catalytic activity and adsorption capacity of the synthesized T-ZnO-rGO-PEI composite was successfully explored using 4-nitrophenol and bisphenol-A as model pollutants .T-ZnO-rGO-PEI composite and found that 4-NP reduction reaction was completed within 10 min with the rate of 0.224 min(-1). The BPA adsorption over T-ZnO-rGO-PEI exhibited high adsorption rate of 0.0210 min(-1). In addition, the detailed 4-NP reduction and BPA adsorption mechanism was demonstrated. Hence the synthesized T-ZnO-rGO-PEI composite is a promising catalyst for the removal of micropollutants in aqueous medium. (C) 2020 Elsevier Ltd. All rights reserved. | - |
dc.publisher | PERGAMON-ELSEVIER SCIENCE LTD | - |
dc.title | Synthesis of hierarchically structured T-ZnO-rGO-PEI composite and their catalytic removal of colour and colourless phenolic compounds | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Dongjin | - |
dc.identifier.doi | 10.1016/j.chemosphere.2020.129245 | - |
dc.identifier.scopusid | 2-s2.0-85097765702 | - |
dc.identifier.wosid | 000608802100100 | - |
dc.identifier.bibliographicCitation | CHEMOSPHERE, v.267 | - |
dc.relation.isPartOf | CHEMOSPHERE | - |
dc.citation.title | CHEMOSPHERE | - |
dc.citation.volume | 267 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.subject.keywordPlus | REDUCED GRAPHENE OXIDE | - |
dc.subject.keywordPlus | BISPHENOL-A | - |
dc.subject.keywordPlus | ELECTROCHEMICAL DETECTION | - |
dc.subject.keywordPlus | ADSORPTION | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | ACID | - |
dc.subject.keywordPlus | NANOCOMPOSITE | - |
dc.subject.keywordPlus | REDUCTION | - |
dc.subject.keywordPlus | SENSOR | - |
dc.subject.keywordAuthor | 4-nitrophenol | - |
dc.subject.keywordAuthor | Bisphenol A | - |
dc.subject.keywordAuthor | Catalytic reduction | - |
dc.subject.keywordAuthor | Polyethylenimine | - |
dc.subject.keywordAuthor | T-ZnO | - |
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