Self-assembled nitrogen-doped graphene quantum dots (N-GQDs) over graphene sheets for superb electro-photocatalytic activity
DC Field | Value | Language |
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dc.contributor.author | Riaz, Rabia | - |
dc.contributor.author | Ali, Mumtaz | - |
dc.contributor.author | Sahito, Iftikhar Ali | - |
dc.contributor.author | Arbab, Alvira Ayoub | - |
dc.contributor.author | Maiyalagan, T. | - |
dc.contributor.author | Anjum, Aima Sameen | - |
dc.contributor.author | Ko, Min Jae | - |
dc.contributor.author | Jeong, Sung Hoon | - |
dc.date.accessioned | 2021-07-30T05:05:45Z | - |
dc.date.available | 2021-07-30T05:05:45Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2019-06 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/2902 | - |
dc.description.abstract | Nitrogen-doped graphene quantum dots (N-GQDs) are emerging electroactive and visible light active organic photocatalysts, known for their high stability, catalytic activity and biocompatibility. The edge surfaces of N-GQDs are highly active, however, when N-GQDs make the film the edges are not fully exposed for catalysis. To avoid this issue, the N-GQDs are shaped to branched leaf shape, with an extended network of voids, offering highly active surfaces (edge) exposed for electrocatalytic and photocatalytic activity. The nitrogen doping causes a decrease in the bandgap of N-GQDs, thus enabling them to be superb visible light photocatalyst, for degradation of Methylene blue dye from water. Photoluminescence results confirmed that by a synergistic combination of the highly conductive substrate; Carbon fabric coated graphene sheets (CF-rGO) the recombination of photogenerated excitons is significantly suppressed, hence enabling their efficient utilization for catalysis. Comparatively, uniformly coated N-GQDs showed 49.3% lower photocatalytic activity, owing to their hidden active sites. The degradation was further boosted by 30% by combining the electrocatalytic activity, i.e. electro-photocatalysis of the proposed electrode. The proposed electrode material was analyzed using TEM, FE-SEM, FTIR, AFM, and WA-XRD, whereas the stability of electrode was confirmed by TGA, tensile test, bending test, and in harsh chemical environments. The proposed photo-electrocatalyst electrode is binder-free, stable, flexible and highly conductive, which makes the electrode quite suitable for flexible catalytic devices like flexible solar cells and wearable supercapacitors. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.title | Self-assembled nitrogen-doped graphene quantum dots (N-GQDs) over graphene sheets for superb electro-photocatalytic activity | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Ko, Min Jae | - |
dc.contributor.affiliatedAuthor | Jeong, Sung Hoon | - |
dc.identifier.doi | 10.1016/j.apsusc.2019.02.228 | - |
dc.identifier.scopusid | 2-s2.0-85062716249 | - |
dc.identifier.wosid | 000463008200118 | - |
dc.identifier.bibliographicCitation | APPLIED SURFACE SCIENCE, v.480, pp.1035 - 1046 | - |
dc.relation.isPartOf | APPLIED SURFACE SCIENCE | - |
dc.citation.title | APPLIED SURFACE SCIENCE | - |
dc.citation.volume | 480 | - |
dc.citation.startPage | 1035 | - |
dc.citation.endPage | 1046 | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | ASSISTED PHOTOELECTROCATALYTIC DEGRADATION | - |
dc.subject.keywordPlus | WASTE-WATER | - |
dc.subject.keywordPlus | ORGANIC POLLUTANTS | - |
dc.subject.keywordPlus | COUNTER ELECTRODE | - |
dc.subject.keywordPlus | NANOTUBE ARRAYS | - |
dc.subject.keywordPlus | CARBON NANODOTS | - |
dc.subject.keywordPlus | OXALIC-ACID | - |
dc.subject.keywordPlus | DYE | - |
dc.subject.keywordPlus | OXIDE | - |
dc.subject.keywordPlus | FLUORESCENCE | - |
dc.subject.keywordAuthor | Reduced graphene oxide | - |
dc.subject.keywordAuthor | Nitrogen doped graphene quantum dots | - |
dc.subject.keywordAuthor | Carbon fabric | - |
dc.subject.keywordAuthor | Flexible | - |
dc.subject.keywordAuthor | Electro-photocatalysis | - |
dc.identifier.url | https://linkinghub.elsevier.com/retrieve/pii/S0169433219305859 | - |
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