Facilely synthesized N-doped carbon quantum dots with high fluorescent yield for sensing Fe3+

被引：150

作者：

Yu, Jing ^{[1
]}

Xu, Chunxiang ^{[1
]}

Tian, Zhengshan ^{[1
]}

Lin, Yi ^{[1
]}

Shi, Zengliang ^{[1
]}

机构：

[1] Southeast Univ, Sch Biol Sci & Med Engn, State Key Lab Bioelect, Nanjing 210096, Jiangsu, Peoples R China

来源：

NEW JOURNAL OF CHEMISTRY | 2016年 / 40卷 / 03期

关键词：

ONE-STEP PREPARATION; TURN-ON DETECTION; HYDROTHERMAL SYNTHESIS; SENSITIVE DETECTION; HYDROGEN-PEROXIDE; PHASE SYNTHESIS; GRAPHENE OXIDE; NITROGEN; NANODOTS; PROBE;

D O I：

10.1039/c5nj03252k

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Nitrogen doped carbon quantum dots (NCQDs) were synthesized using L-glutamic acid as raw material through a facile, effective and green hydrothermal method in one pot. Without any chemical reagents and further surface modifications, the NCQDs emit bright blue fluorescence with a high quantum yield of 17.8% due to the fluorescence enhancement effect of N dopant atoms on a surface of carbon quantum dots. Moreover, the NCQDs present a sensitive response to Fe3+ ions with a detection limit of 4.67 mu M (S/N = 3) through the variation in fluorescence with respect to the target concentration and based on electron transfer from the NCQDs to Fe3+ ions.

引用

页码：2083 / 2088

页数：6

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