Noval Dual-Emission Fluorescence Carbon Dots as a Ratiometric Probe for Cu(2+) and ClO(-) Detection.

Noval Dual-Emission Fluorescence Carbon Dots as a Ratiometric Probe for Cu(2+) and ClO(-) Detection.
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新型双发射荧光碳点作为比例探针用于 Cu2 和 ClO 检测

DOI:
10.3390/nano11051232
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发表时间:
2021-05-07
期刊:
Nanomaterials (Basel, Switzerland)
影响因子:
--
通讯作者:
Qu J
Qu J
中科院分区:
其他
文献类型:
--
作者:
Guo J;Liu A;Zeng Y;Cai H;Ye S;Li H;Yan W;Zhou F;Song J;Qu J

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近年来,基于比率荧光的双发射碳点(Cd)的使用引起了人们的关注,因为它们有助于避免背景噪声、探针浓度和复杂性的干扰,从而实现更准确的离子检测。本论文采用一种简单的检测Cu2+和ClO的方法制备了新型双发射掺氮硫化镉(NCDS)。NCDS对不同的排放表现出良好的抗干扰性和选择性。此外,在Cu2+(0-90μM)和ClO−(0-75μM)的不同发射下,NCD溶液的荧光强度(FI)之间存在良好的线性关系。Cu2+的检出限和ClO−的检出限都很低,分别为17.7 nm和11.6 nm。在水中对Cu2+和ClO−的检测也显示了良好的回收率。因此,它们在实际样品中有望有更广泛的应用前景。
The use of carbon dots (CDs) with dual emission based on ratiometric fluorescence has been attracting attention in recent times for more accurate ion detection since they help avoid interference from background noise, probe concentration, and complexity. Herein, novel dual-emission nitrogen-doped CDs (NCDs) were prepared by a simple method for Cu2+ and ClO- detection. The NCDs showed excellent anti-interference ability and selectivity for different emissions. In addition, a good linear relationship was observed between the fluorescence intensity (FI) of the NCD solutions in different emissions with Cu2+ (0–90 μM) and ClO− (0–75 μM). The limits of both Cu2+ detection and ClO− were very low, at 17.7 and 11.6 nM, respectively. The NCDs developed herein also showed a good recovery rate in water for Cu2+ and ClO− detection. Hence, they are expected to have a more extensive application prospect in real samples.
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