水相CdSe量子点在甲醛传感中的应用

Q4 Engineering

International Journal of Nanoparticles Pub Date : 2019-02-25 DOI:10.1504/IJNP.2019.10019126

N. Deepika, R. Dhar, Suman Singh

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引用次数: 0

摘要

在水相中合成了巯基乙酸封端的硒化镉（CdSe）量子点，并利用紫外-可见吸收光谱和荧光光谱对其光学性质进行了研究。使用TEM和XRD对量子点进行了表征。以甲醛为模型化合物，进一步研究了CdSe量子点的潜在应用。该传感基于甲醛存在下量子点的荧光猝灭，这项工作在0.15至1.05ppm范围内显示出线性，检测限为0.06ppm。

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Application of aqueous phase CdSe quantum dots for formaldehyde sensing

Thioglycolic acid capped cadmium selenide (CdSe) quantum dots have been synthesised in aqueous phase and their optical properties have been studied using UV-visible absorption and fluorescence spectroscopy. Quantum dots have been characterised using TEM and XRD. The potential application of CdSe quantum dots are further studied using formaldehyde as a model compound. The sensing is based on fluorescence quenching of quantum dots in the presence of formaldehyde, and this work showed linearity in the range from 0.15 to 1.05 ppm, with a detection limit of 0.06 ppm.

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来源期刊

International Journal of Nanoparticles Engineering-Mechanical Engineering

CiteScore

1.60

自引率

0.00%

发文量