Silver Nanoprism for Selective and Sensitive Detection of Hg⁺² Ions.

Journal of nanoscience and nanotechnology Pub Date : 2021-12-01 DOI:10.1166/jnn.2021.19529

Avneesh Mittal, Komal Gupta, Balaram Pani, Gulshan Kumar, Gopala Ram Bhadu, Sachin Kumar Godara, Ratyakshi Nain, Sidhharth Sirohi

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引用次数: 1

Abstract

In this article, we propose high-performance colorimetric detection of Hg⁺² using silver nanoprisms. The spherical and triangular AgNPs were synthesized using varied concentration of NaBH4. Pristine AgNPs without any further modification were used for the detection of various metal ions including Hg²⁺, Pb²⁺, Cl^-, Cd²⁺, Co²⁺, Cu²⁺, Ba²⁺, Pb²⁺, Cr³⁺, Cr₂O^2-₇ , Fe²⁺, Fe³⁺ etc. AgNPs were not only selective in detecting the ions of Cl^- and Hg⁺² ions but also highly sensitive. Minimum detection limit was observed to be as low as 10^-7 ppm for both Hg⁺² and Cl^-. Water samples collected from various locations detected for the presence of various heavy metals. Silver nanoprisms owing to their surface plasmon resonance exhibit highly selective tendency towards detection against Hg⁺².

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银纳米片选择性灵敏检测Hg+2离子。

在本文中，我们提出了用银纳米棱镜高效比色法检测Hg+2。用不同浓度的NaBH4合成了球形和三角形AgNPs。使用未经进一步修饰的原始AgNPs检测各种金属离子，包括Hg2+、Pb2+、Cl-、Cd2+、Co2+、Cu2+、Ba2+、Pb2+、Cr3+、Cr₂O2-7、Fe2+、Fe3+等。AgNPs对Cl-和Hg+2离子的检测不仅具有选择性，而且具有很高的灵敏度。Hg+2和Cl-的最低检出限低至10-7 ppm。从不同地点采集的水样检测出各种重金属的存在。银纳米棱镜由于其表面等离子体共振表现出对Hg+2检测的高度选择性倾向。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of nanoscience and nanotechnology 工程技术-材料科学：综合

自引率

0.00%

发文量

审稿时长

3.6 months

期刊介绍： JNN is a multidisciplinary peer-reviewed journal covering fundamental and applied research in all disciplines of science, engineering and medicine. JNN publishes all aspects of nanoscale science and technology dealing with materials synthesis, processing, nanofabrication, nanoprobes, spectroscopy, properties, biological systems, nanostructures, theory and computation, nanoelectronics, nano-optics, nano-mechanics, nanodevices, nanobiotechnology, nanomedicine, nanotoxicology.