Synthesis of TiO2/RGO with plasmonic Ag nanoparticles for highly efficient photoelectrocatalytic reduction of CO2 to methanol toward the removal of an organic pollutant from the atmosphere
DC Field | Value | Language |
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dc.contributor.author | Bharath, G. | - |
dc.contributor.author | Prakash, J. | - |
dc.contributor.author | Rambabu, K. | - |
dc.contributor.author | Venkatasubbu, G. Devanand | - |
dc.contributor.author | Kumar, Ashok | - |
dc.contributor.author | Lee, Seungjun | - |
dc.contributor.author | Theerthagiri, Jayaraman | - |
dc.contributor.author | Choi, Myong Yong | - |
dc.contributor.author | Banat, Fawzi | - |
dc.date.accessioned | 2022-12-26T10:15:35Z | - |
dc.date.available | 2022-12-26T10:15:35Z | - |
dc.date.issued | 2021-07-15 | - |
dc.identifier.issn | 0269-7491 | - |
dc.identifier.issn | 1873-6424 | - |
dc.identifier.uri | https://scholarworks.gnu.ac.kr/handle/sw.gnu/3483 | - |
dc.description.abstract | The synergistic photoelectrochemical (PEC) technology is a robust process for the conversion of CO2 into fuels. However, designing a highly efficient UV-visible driven photoelectrocatalyst is still challenging. Herein, a plasmonic Ag NPs modified TiO2/RGO photoelectrocatalyst (Ag-TiO2/RGO) has been designed for the PEC CO2 reduction into selective production of CH3OH. HR-TEM analysis revealed that Ag and TiO2 NPs with average sizes of 4 and 7 nm, respectively, were densely grown on the few-micron-sized 2D RGO nanosheets. The physicochemical analysis was used to determine the optical and textural properties of the Ag-TiO2/RGO nanohybrids. Under VU-Vis light illumination, Ag-TiO2/RGO photocathode possessed a current density of 23.5 mA cm(-2) and a lower electrode resistance value of 125 Omega in CO2-saturated 1.0 M KOH-aqueous electrolyte solution. Catalytic studies showed that the Ag-TiO2/RGO photocathode possessed a remarkable PEC CO2 reduction activity and selective production of CH3OH with a yield of 85 timol L-1 cm(-2), the quantum efficiency of 20% and Faradic efficiency of 60.5% at onset potential of -0.7 V. A plausible PEC CO2 reduction mechanism over Ag-TiO2/RGO photocathode is schematically demonstrated. The present work gives a new avenue to develop high-performance and stable photoelectrocatalyst for PEC CO2 reduction towards sustainable liquid fuels production. (C) 2021 Elsevier Ltd. All rights reserved. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | Pergamon Press Ltd. | - |
dc.title | Synthesis of TiO2/RGO with plasmonic Ag nanoparticles for highly efficient photoelectrocatalytic reduction of CO2 to methanol toward the removal of an organic pollutant from the atmosphere | - |
dc.type | Article | - |
dc.publisher.location | 영국 | - |
dc.identifier.doi | 10.1016/j.envpol.2021.116990 | - |
dc.identifier.scopusid | 2-s2.0-85103558705 | - |
dc.identifier.wosid | 000657599600005 | - |
dc.identifier.bibliographicCitation | Environmental Pollution, v.281 | - |
dc.citation.title | Environmental Pollution | - |
dc.citation.volume | 281 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
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 | PHOTOCATALYTIC REDUCTION | - |
dc.subject.keywordPlus | DOPED TIO2 | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHEMICALS | - |
dc.subject.keywordAuthor | Plasmonics | - |
dc.subject.keywordAuthor | Heterogeneous electrocatalysts | - |
dc.subject.keywordAuthor | Photocathode | - |
dc.subject.keywordAuthor | CO2 reduction | - |
dc.subject.keywordAuthor | Methanol | - |
dc.subject.keywordAuthor | Sustainable liquid fuels | - |
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