PMID- 30314392 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20181015 LR - 20231004 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 18 IP - 10 DP - 2018 Oct 11 TI - Ultrafast and Energy-saving Synthesis of Nitrogen and Chlorine Co-doped Carbon Nanodots via Neutralization Heat for Selective Detection of Cr(VI) in Aqueous Phase. LID - 10.3390/s18103416 [doi] LID - 3416 AB - In this work, it is presented for the first time that nitrogen and chlorine co-doped carbon nanodots (N,Cl-CDs) were synthesized by simply mixing glucose, concentrated hydrochloric acid (HCl), and 1,2-ethylenediamine (EDA). No external heat was employed; the neutralization reaction served as the heat source. The glucose served as the carbon source while EDA and HCl were the N and Cl dopants, respectively. The fluorescence of N,Cl-CDs was adequately quenched by hexavalent chromium Cr(VI) based on a combination of dynamic quenching and inner filter effect (IFE). Accordingly, an efficient N,Cl-CDs-based fluorescence probe was established for sensitive and selective detection of Cr(VI). The proposed fluorescence sensor provides a linear recognition range for Cr(VI) determination from 3 to 40 microM with a limit of detection (LOD) of 0.28 microM (14.6 microg/L). The proposed fluorescence method was successfully utilized to detect Cr(VI) in different water samples with satisfactory results. The spike recoveries vary from 97.01% to 103.89% with relative standard deviations (RSDs) of less than 0.82%. This work highlights the development of a simple, ultrafast, and energy-saving one-step synthetic route to fabricate N,Cl-CDs for highly selective and sensitive detection of Cr(VI) in real water samples. It is anticipated that the proposed fluorescence method could be further explored and widely used for Cr(VI) detection in the environmental industry. FAU - Hu, Qin AU - Hu Q AUID- ORCID: 0000-0002-9989-3413 AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. qinhu1998@outlook.com. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. qinhu1998@outlook.com. FAU - Li, Tao AU - Li T AD - Department of Agronomy, Yangzhou University, Jiangsu 225001, China. gaolu@yzu.edu.cn. FAU - Gao, Lu AU - Gao L AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. sqrao@yzu.edu.cn. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. sqrao@yzu.edu.cn. FAU - Gong, Xiaojuan AU - Gong X AD - Institute of Environmental Science, and School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, China. wmfang@yzu.edu.cn. FAU - Rao, Shengqi AU - Rao S AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. rxgu@yzu.edu.cn. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. rxgu@yzu.edu.cn. FAU - Fang, Weiming AU - Fang W AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. taoli@yzu.edu.cn. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. taoli@yzu.edu.cn. FAU - Gu, Ruixia AU - Gu R AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. gxj1124@sxu.edu.cn. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. gxj1124@sxu.edu.cn. FAU - Yang, Zhenquan AU - Yang Z AD - College of Food Science and Engineering, Yangzhou University, Jiangsu 225001, China. yangzq@yzu.edu.cn. AD - Jiangsu Key Laboratory of Dairy Biotechnology and Safety Control, Yangzhou University, Jiangsu 225001, China. yangzq@yzu.edu.cn. LA - eng GR - 31371806 and 21705101/National Natural Science Foundation of China/ GR - CX(15)1012/China Jiangsu Innovation Fund of Agricultural Science and Technology/ GR - 2016/Yangzhou University Science and Technology Innovation Team (2016)/ PT - Journal Article DEP - 20181011 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 PMC - PMC6210692 OTO - NOTNLM OT - Cr(VI) detection OT - carbon nanodots OT - fluorescent nanosensor OT - water samples COIS- The authors declare no conflict of interest. EDAT- 2018/10/14 06:00 MHDA- 2018/10/14 06:01 PMCR- 2018/10/01 CRDT- 2018/10/14 06:00 PHST- 2018/09/09 00:00 [received] PHST- 2018/10/09 00:00 [revised] PHST- 2018/10/09 00:00 [accepted] PHST- 2018/10/14 06:00 [entrez] PHST- 2018/10/14 06:00 [pubmed] PHST- 2018/10/14 06:01 [medline] PHST- 2018/10/01 00:00 [pmc-release] AID - s18103416 [pii] AID - sensors-18-03416 [pii] AID - 10.3390/s18103416 [doi] PST - epublish SO - Sensors (Basel). 2018 Oct 11;18(10):3416. doi: 10.3390/s18103416.