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银纳米颗粒和银纳米团簇在汞（II）检测与去除中的作用。

Role of silver nanoparticles and silver nanoclusters for the detection and removal of Hg(ii).

作者信息

Sahu Mamta, Ganguly Mainak, Sharma Priyanka

机构信息

Department of Chemistry, Manipal University Jaipur Dehmi Kalan Jaipur 303007 Rajasthan India

出版信息

RSC Adv. 2024 Jul 15;14(31):22374-22392. doi: 10.1039/d4ra04182h. eCollection 2024 Jul 12.

DOI:10.1039/d4ra04182h
PMID:39010928
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11247438/
Abstract

Silver metal, being a 3d transition metal in group 11 in the periodic table, is widely used in material science for its distinguished plasmonic properties. Nanoparticles (NPs) and nanoclusters (NCs) are widely used in sensing applications having a surface plasmon band and emissive properties, respectively. Mercury is one of the detrimental toxins and threats to various ecosystems. The distinction between nanoparticles and nanoclusters, the utility and toxicity of heavy metal mercury, fluorometric and colorimetric approaches to the recognition of mercury ions with NPs and NCs, the mechanism of detection, spot detection, and natural water sample analyses were illustrated in detail in this review article. Moreover, the sensing platform and analyte (Hg) fate were described for substantiating the mechanism. It was observed that NCs are mostly utilized for fluorometric approaches, while NPs are mostly employed for colorimetric approaches. Fluorometric detection is mainly quenching-based. However, sensing with enhancement was found in a few reports. Adulteration of other metals with silver particles often modifies the sensing platform.

摘要

银金属作为元素周期表第11族中的一种3d过渡金属，因其卓越的等离子体特性而在材料科学中得到广泛应用。纳米颗粒（NPs）和纳米团簇（NCs）分别因其具有表面等离子体带和发光特性而被广泛应用于传感应用中。汞是对各种生态系统有害的毒素和威胁之一。本文详细阐述了纳米颗粒与纳米团簇之间的区别、重金属汞的用途和毒性、利用纳米颗粒和纳米团簇对汞离子进行荧光和比色识别的方法、检测机制、现场检测以及天然水样分析。此外，还描述了传感平台和分析物（汞）的归宿以证实该机制。据观察，纳米团簇大多用于荧光检测方法，而纳米颗粒大多用于比色检测方法。荧光检测主要基于猝灭。然而，在一些报告中发现了增强型传感。银颗粒与其他金属的掺杂常常会改变传感平台。

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