Synthesis of cysteamine-coated CdTe quantum dots and its application in mercury (II) detection

	Synthesis of cysteamine-coated CdTe quantum dots and its application in mercury (II) detection
	Pei JY ; Zhu H ; Wang XL ; Zhang HC ; Yang XR
刊名	analytica chimica acta
	2012
卷号	757 页码:63-68
关键词	ION PROBES NANOCRYSTALS WATER PHOTOLUMINESCENCE NANOPARTICLES COPPER PHASE HG
ISSN号	0003-2670
通讯作者	yang xr
中文摘要	high-quality cysteamine-coated cdte quantum dots (ca-cdte qds) were successfully synthesized in aqueous phase by a facile one-pot method. through hydroxylamine hydrochloride-promoted kinetic growth strategy, water-soluble ca-cdte qds could be obtained conveniently in a conical flask by a step-wise addition of raw materials. the photoluminescence quantum yield (pl qy) of the obtained qds reached 9.2% at the emission peak of 520 nm. the optical property and the morphology of the qds were characterized by uv-vis absorption spectra, photoluminescence spectra (pl) and transmission electron microscopy (tem) respectively. furthermore, the fluorescence of the resultant qds was quenched by copper (ii) (cu2+) and mercury (ii) (hg2+) meanwhile. it is worthy of note that to separately detect hg2+, cyanide ion could be used to eliminate the interference of cu2+. under the optimal conditions, the response was linearly proportional to the logarithm of hg2+ concentration over the range of 0.08-3.33 mu m with a limit of detection (lod) of 0.07 mu m. (c) 2012 elsevier b.v. all rights reserved.
收录类别	SCI收录期刊论文
语种	英语
WOS记录号	WOS:000312514800008
公开日期	2013-03-17
内容类型	期刊论文
源URL	[http://ir.ciac.jl.cn/handle/322003/47798]
专题	长春应用化学研究所_长春应用化学研究所知识产出_期刊论文
推荐引用方式 GB/T 7714	Pei JY,Zhu H,Wang XL,et al. Synthesis of cysteamine-coated CdTe quantum dots and its application in mercury (II) detection[J]. analytica chimica acta,2012,757:63-68.
APA	Pei JY,Zhu H,Wang XL,Zhang HC,&Yang XR.(2012).Synthesis of cysteamine-coated CdTe quantum dots and its application in mercury (II) detection.analytica chimica acta,757,63-68.
MLA	Pei JY,et al."Synthesis of cysteamine-coated CdTe quantum dots and its application in mercury (II) detection".analytica chimica acta 757(2012):63-68.