Mechanism for selective binding of aromatic compounds on oxygen-rich graphene nanosheets based on molecule size/polarity matching

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dc.citation.articleNumbereabn4650
dc.citation.issueNumber30
dc.citation.journalTitleScience Advances
dc.citation.volumeNumber8
dc.contributor.authorFu, Heyun
dc.contributor.authorWang, Bingyu
dc.contributor.authorZhu, Dongqiang
dc.contributor.authorZhou, Zhicheng
dc.contributor.authorBao, Shidong
dc.contributor.authorQu, Xiaolei
dc.contributor.authorGuo, Yong
dc.contributor.authorLing, Lan
dc.contributor.authorZheng, Shourong
dc.contributor.authorDuan, Pu
dc.contributor.authorMao, Jingdong
dc.contributor.authorSchmidt-Rohr, Klaus
dc.contributor.authorTao, Shu
dc.contributor.authorAlvarez, Pedro J.J.
dc.date.accessioned2022-08-09T17:09:31Z
dc.date.available2022-08-09T17:09:31Z
dc.date.issued2022
dc.description.abstractSelective binding of organic compounds is the cornerstone of many important industrial and pharmaceutical applications. Here, we achieved highly selective binding of aromatic compounds in aqueous solution and gas phase by oxygen-enriched graphene oxide (GO) nanosheets via a previously unknown mechanism based on size matching and polarity matching. Oxygen-containing functional groups (predominately epoxies and hydroxyls) on the nongraphitized aliphatic carbons of the basal plane of GO formed highly polar regions that encompass graphitic regions slightly larger than the benzene ring. This facilitated size match–based interactions between small apolar compounds and the isolated aromatic region of GO, resulting in high binding selectivity relative to larger apolar compounds. The interactions between the functional group(s) of polar aromatics and the epoxy/hydroxyl groups around the isolated aromatic region of GO enhanced binding selectivity relative to similar-sized apolar aromatics. These findings provide opportunities for precision separations and molecular recognition enabled by size/polarity match–based selectivity.
dc.identifier.citationFu, Heyun, Wang, Bingyu, Zhu, Dongqiang, et al.. "Mechanism for selective binding of aromatic compounds on oxygen-rich graphene nanosheets based on molecule size/polarity matching." <i>Science Advances,</i> 8, no. 30 (2022) AAAS: https://doi.org/10.1126/sciadv.abn4650.
dc.identifier.digitalsciadv-abn4650
dc.identifier.doihttps://doi.org/10.1126/sciadv.abn4650
dc.identifier.urihttps://hdl.handle.net/1911/113088
dc.language.isoeng
dc.publisherAAAS
dc.rightsDistributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0/
dc.titleMechanism for selective binding of aromatic compounds on oxygen-rich graphene nanosheets based on molecule size/polarity matching
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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