摘要
利用湿化学法成功合成了β-环糊精(β-CD)修饰的石墨烯(β-CD-GNs),探讨了其对水溶液中α-萘酚及β-萘酚的识别作用.结果表明,石墨烯功能化的β-CD能同时识别α-萘酚及β-萘酚,导致其荧光猝灭;β-CD-GNs对α-萘酚的猝灭包括α-萘酚进入β-CD内腔导致的猝灭及石墨烯与α-萘酚间的π-π相互作用导致的猝灭,而β-CD-GNs对β-萘酚的猝灭主要是石墨烯与β-萘酚间的π-π相互作用所致.
β-cyclodextrin-modified grapheme（β-CD-GNs）was successfully prepared using the wet chemical method and was used to recognizeα-naphthol andβ-naphthol in aqueous media.The experimental result suggested thatβ-CD-GNs could simultaneously recognizeα-naphthol andβ-naphthol,resulting the quenching of fluorescent naphthol homologues.The fluorescent quenching ofα-naphthol byβ-CD-GNs was due to inclusion ofβ-CD onα-naphthol andπ-πinteraction betweenα-naphthol and grapheme inβ-CD-GNs.However,the fluorescent quenching ofβ-naphthol was mainly due toπ-πinteraction betweenβ-naphthol and graphene inβ-CD-GNs.
出处
《西南大学学报（自然科学版）》
CAS
CSCD
北大核心
2015年第7期129-132,共4页
Journal of Southwest University(Natural Science Edition)
基金
国家自然科学基金项目(21277111)
关键词
β-环糊精
石墨烯
萘酚
分子识别
β-cyclodextrin
graphene
naphthol
molecular recognition
