Synthesis of fluorescent ionic liquid-functionalized silicon nanoparticles with tunable amphiphilicity and selective determination of Hg2+

被引：18

作者：

Li, Quan ^{[1
]}

Peng, Kaite ^{[1
]}

Lu, Yanzhen ^{[1
]}

Li, Aoxin ^{[1
]}

Che, Fenfang ^{[1
]}

Liu, Yuanyuan ^{[1
]}

Xi, Xingjun ^{[2
]}

Chu, Qiao ^{[2
]}

Lan, Tao ^{[2
]}

Wei, Yun ^{[1
]}

机构：

[1] Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, 15 3rd Ring North East Rd, Beijing 100029, Peoples R China

[2] China Natl Inst Standardizat, 4 Zhichun Rd, Beijing 100191, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY B | 2018年 / 6卷 / 48期

基金：

中国国家自然科学基金; 北京市自然科学基金;

关键词：

COLD VAPOR GENERATION; QUANTUM DOTS; ASSISTED SYNTHESIS; SENSING HG2+; CARBON DOTS; NITROGEN; EMISSION; ABSORPTION; MERCURY; CELLS;

D O I：

10.1039/c8tb02109k

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

0805 ; 080501 ; 080502 ;

摘要：

Fluorescent silicon nanoparticles have attracted much attention in recent years due to their superior optical properties, strong photostability, low toxicity, and favorable biocompatibility. In this paper, we have prepared imidazolium ionic liquid-functionalized silicon nanoparticles (IL@SiNPs) via a simple one-pot hydrothermal route from 1-(trimethoxysilyl)propyl-3-methylimidazolium chloride that was denoted as [SmIm]Cl and sodium citrate. The synthetic IL@SiNPs could be a novel label-free sensing probe for sensitive and selective detection of Hg2+ ions with energy transfer from IL@SiNPs to Hg2+. A good linear relationship was obtained from 0 to 40 mol L-1 with a detection limit of 0.45 M. Furthermore, the solubility of the IL@SiNPs can be facilely converted by anion exchange without complex chemical modification. The ionic liquid-modified SiNPs may show great promise in biological and environmental applications due to their excellent biocompatibility and optical performance.

引用

页码：8214 / 8220

页数：7

共 44 条

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