Reaction-volume dependent chemistry of highly selective photocatalytic reduction of nitrobenzene

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dc.contributor.authorJang, Seungwookko
dc.contributor.authorJung, Bum-Joonko
dc.contributor.authorKim, Mi-Jeongko
dc.contributor.authorLee, Wonheeko
dc.contributor.authorKim, Dong-Pyoko
dc.date.accessioned2019-10-24T01:20:12Z-
dc.date.available2019-10-24T01:20:12Z-
dc.date.created2019-10-22-
dc.date.created2019-10-22-
dc.date.created2019-10-22-
dc.date.issued2019-10-
dc.identifier.citationREACTION CHEMISTRY & ENGINEERING, v.4, no.10, pp.1752 - 1756-
dc.identifier.issn2058-9883-
dc.identifier.urihttp://hdl.handle.net/10203/268040-
dc.description.abstractReaction-volume dependent photocatalytic reduction of nitrobenzene was investigated in various batch reactors and continuous-flow microreactors (CFMs) with different surface area to volume ratios (SA/V) under visible-light irradiation, leading to control of the photochemical reduction route, reaction speed and product selectivity. A batch reactor with less than 1.5 cm(-1) SA/V ratio produced only aniline in 96% selectivity with 40% conversion by a direct reaction route. In contrast, the CFM with an 80 cm(-1) SA/V ratio showed production of high-value azoxybenzene in 99% selectivity with 99% conversion through a condensation reaction route. In particular, a parylene thin film microreactor with a 100 mu m channel height (400 cm(-1) SA/V ratio) achieved perfect conversion and selectivity to azoxybenzene within only 50 min of reaction, compared to 20 h of reaction in the batch reactor to produce aniline. The mechanistic reaction progress was monitored by conducting time-dependent reactions of nitrobenzene and nitrosobenzene. Furthermore, the photocatalysis of various nitro-aromatic compounds also exhibited the identical reaction-volume dependent chemistry with excellent product selectivity.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.titleReaction-volume dependent chemistry of highly selective photocatalytic reduction of nitrobenzene-
dc.typeArticle-
dc.identifier.wosid000487966300003-
dc.identifier.scopusid2-s2.0-85072748563-
dc.type.rimsART-
dc.citation.volume4-
dc.citation.issue10-
dc.citation.beginningpage1752-
dc.citation.endingpage1756-
dc.citation.publicationnameREACTION CHEMISTRY & ENGINEERING-
dc.identifier.doi10.1039/c9re00251k-
dc.contributor.localauthorLee, Wonhee-
dc.contributor.nonIdAuthorJang, Seungwook-
dc.contributor.nonIdAuthorKim, Mi-Jeong-
dc.contributor.nonIdAuthorKim, Dong-Pyo-
dc.description.isOpenAccessN-
dc.type.journalArticleArticle-
dc.subject.keywordPlusNITRO-COMPOUNDS-
dc.subject.keywordPlusTITANIUM-DIOXIDE-
dc.subject.keywordPlusEFFICIENT-
dc.subject.keywordPlusLIGHT-
dc.subject.keywordPlusANILINE-
dc.subject.keywordPlusTIO2-
dc.subject.keywordPlusHYDROGENATION-
dc.subject.keywordPlusNITROAROMATICS-
dc.subject.keywordPlusPHOTOREDUCTION-
dc.subject.keywordPlusNANOPARTICLES-
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