A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection

In this article, a novel method to synthesize graphene quantum dots was developed via thermal treatment of crude graphite oxide (GO) in a dry and alkaline condition to cut the crude GO sheets into small graphene quantum dots (named as aGQDs). The aGQDs are nano-scale reduced graphene oxide pieces wi...

Full description

Bibliographic Details
Main Authors:	Shanli Yang, Yingru Li, Shaofei Wang, Jingsong Xu, Lang Shao, Tao Gai, Hao Tang, Yiming Ren, Mingfu Chu, Bianyuan Xia
Format:	Article
Language:	English
Published:	Elsevier 2020-09-01
Series:	Heliyon
Subjects:	Analytical chemistry Environmental science Materials science Graphene dots Uranyl Detection
Online Access:	http://www.sciencedirect.com/science/article/pii/S2405844020313773

id	doaj-02ccc06ef7db4791a7620852bdaff6a2
record_format	Article
spelling	doaj-02ccc06ef7db4791a7620852bdaff6a22020-11-25T03:58:13ZengElsevierHeliyon2405-84402020-09-0169e04533A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detectionShanli Yang0Yingru Li1Shaofei Wang2Jingsong Xu3Lang Shao4Tao Gai5Hao Tang6Yiming Ren7Mingfu Chu8Bianyuan Xia9Institute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, China; Corresponding author.Institute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaScience and Technology on Surface Physics and Chemistry Laboratory, P.O. Box Nos, 9-35, Huafengxincun, Jiangyou City, Sichuan Province, 621908, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaInstitute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, China; Corresponding author.Institute of Materials, Chinse Academy of Engineering Physics, Mianyang, Sichuan province, 621700, ChinaIn this article, a novel method to synthesize graphene quantum dots was developed via thermal treatment of crude graphite oxide (GO) in a dry and alkaline condition to cut the crude GO sheets into small graphene quantum dots (named as aGQDs). The aGQDs are nano-scale reduced graphene oxide pieces with the sizes around 5–10 nm. The aGQDs could disperse in water for their richment of oxygen-containing groups. The fluorescence properties were carefully investigated. The aGQDS aqueous solution shows a bright yellow-green fluorescence under the UV illumination. Besides, the uranyl ions show a strong fluorescence quenching effect on the a aGQD aqueous solution even at a low concentration (~10−7 M) compared with other common ions in natural water-body, which makes that these aGQDs could be applied as a chemosensor for detection of uranyl ions with good sensitivity and selectivity.http://www.sciencedirect.com/science/article/pii/S2405844020313773Analytical chemistryEnvironmental scienceMaterials scienceGraphene dotsUranylDetection
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Shanli Yang Yingru Li Shaofei Wang Jingsong Xu Lang Shao Tao Gai Hao Tang Yiming Ren Mingfu Chu Bianyuan Xia
spellingShingle	Shanli Yang Yingru Li Shaofei Wang Jingsong Xu Lang Shao Tao Gai Hao Tang Yiming Ren Mingfu Chu Bianyuan Xia A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection Heliyon Analytical chemistry Environmental science Materials science Graphene dots Uranyl Detection
author_facet	Shanli Yang Yingru Li Shaofei Wang Jingsong Xu Lang Shao Tao Gai Hao Tang Yiming Ren Mingfu Chu Bianyuan Xia
author_sort	Shanli Yang
title	A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
title_short	A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
title_full	A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
title_fullStr	A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
title_full_unstemmed	A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
title_sort	novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection
publisher	Elsevier
series	Heliyon
issn	2405-8440
publishDate	2020-09-01
description	In this article, a novel method to synthesize graphene quantum dots was developed via thermal treatment of crude graphite oxide (GO) in a dry and alkaline condition to cut the crude GO sheets into small graphene quantum dots (named as aGQDs). The aGQDs are nano-scale reduced graphene oxide pieces with the sizes around 5–10 nm. The aGQDs could disperse in water for their richment of oxygen-containing groups. The fluorescence properties were carefully investigated. The aGQDS aqueous solution shows a bright yellow-green fluorescence under the UV illumination. Besides, the uranyl ions show a strong fluorescence quenching effect on the a aGQD aqueous solution even at a low concentration (~10−7 M) compared with other common ions in natural water-body, which makes that these aGQDs could be applied as a chemosensor for detection of uranyl ions with good sensitivity and selectivity.
topic	Analytical chemistry Environmental science Materials science Graphene dots Uranyl Detection
url	http://www.sciencedirect.com/science/article/pii/S2405844020313773
work_keys_str_mv	AT shanliyang anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT yingruli anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT shaofeiwang anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT jingsongxu anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT langshao anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT taogai anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT haotang anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT yimingren anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT mingfuchu anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT bianyuanxia anovelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT shanliyang novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT yingruli novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT shaofeiwang novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT jingsongxu novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT langshao novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT taogai novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT haotang novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT yimingren novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT mingfuchu novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection AT bianyuanxia novelsynthesisofgraphenequantumdotsviathermaltreatmentofcrudegraphiteoxideinadryandalkalineconditionandtheirapplicationinuranyldetection
_version_	1724458560166821888

A novel synthesis of graphene quantum dots via thermal treatment of crude graphite oxide in a dry and alkaline condition, and their application in uranyl detection

Similar Items