A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine

doi:10.1039/c8ra06120c

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	A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine
	Wu, Bin 1,2; Shi, Xiaofeng 1; Han, Wei 1; Wang, Taishan 1; Wang, Chunru 1; Jiang, Li 1,2
刊名	RSC ADVANCES
	2018
卷号	8 期号:55 页码:31793-31802
ISSN号	2046-2069
DOI	10.1039/c8ra06120c
英文摘要	An on-off-on fluorescent phosphorus/nitrogen co-doped carbon dot (PNCD) probe was explored for the determination of Cr(vi) and dopamine resulting from the inner filter effect (IFE). The blue-emitting carbon dots with high quantum yields of 25.47% as well as a narrow size distribution were synthesized by a rapid, convenient route using H3PO4 and ethylenediamine as the precursors without any surface passivation. A wide linear region in the range of 7-70 M with a detection limit of 0.71 M was achieved for Cr(vi). Moreover, the proper reductants can weaken the inner filter effect to recover the PNCD fluorescence by converting Cr(vi) into Cr(iii). Therefore, the PNCDs/Cr(vi) hybrid could also be used as an off-on fluorescent probe for detecting dopamine (DA) with a detection limit of 0.49 M. Consequently, the PNCDs could serve as a powerful fluorescent bi-sensor for detection of both Cr(vi) and DA in practical applications.
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000445221300064
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/43011]
专题	中国科学院化学研究所
通讯作者	Jiang, Li
作者单位	1.Chinese Acad Sci, Inst Chem, CAS Res Educ Ctr Excellence Mol Sci, CAS Key Lab Mol Nanostruct & Nanotechnol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wu, Bin,Shi, Xiaofeng,Han, Wei,et al. A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine[J]. RSC ADVANCES,2018,8(55):31793-31802.
APA	Wu, Bin,Shi, Xiaofeng,Han, Wei,Wang, Taishan,Wang, Chunru,&Jiang, Li.(2018).A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine.RSC ADVANCES,8(55),31793-31802.
MLA	Wu, Bin,et al."A double fluorescent nanoprobe based on phosphorus/nitrogen co-doped carbon dots for detecting dichromate ions and dopamine".RSC ADVANCES 8.55(2018):31793-31802.