Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju, Chonbuk 55338, Republic of Korea.
Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju, Chonbuk 55338, Republic of Korea; Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju, Chonbuk 55338, Republic of Korea.
J Hazard Mater. 2022 Feb 15;424(Pt C):127565. doi: 10.1016/j.jhazmat.2021.127565. Epub 2021 Oct 20.
Mercuric (Hg) ions released from human activities, natural phenomena, and industrial sources are regarded as the global pollutant of world's water. Hg ions contaminated water has several adverse effects on human health and the environment even at low concentrations. Therefore, rapid and cost-effective method is urgently required for the detection of Hg ions in water. Although, the current analytical methods applied for the detection of Hg ions provide low detection limit, they are time consuming, require expensive equipment, and are not suitable for in-situ analysis. Metal nanoclusters (MNCs) consisting of several to ten metal atoms are important transition missing between single atoms and plasmonic metal nanoparticles. In addition, sub-nanometer sized MNCs possess unique electronic structures and the subsequent unusual optical, physical, and chemical properties. Because of these novel properties, MNCs as a promising material have attracted considerable attention for the construction of selective and sensitive sensors to monitor water quality. Hence this review is focused on recent advances on synthesis strategies, and optical and chemical properties of various MNCs including their applications to develop optical assay for Hg ions in aqueous solutions.
汞（Hg）离子来源于人类活动、自然现象和工业来源，被认为是全球水污染物。即使在低浓度下，Hg 离子污染的水也会对人类健康和环境产生多种不利影响。因此，迫切需要快速且具有成本效益的方法来检测水中的 Hg 离子。尽管目前用于检测 Hg 离子的分析方法提供了较低的检测限，但它们耗时、需要昂贵的设备，并且不适合现场分析。由几个到十个金属原子组成的金属纳米团簇（MNCs）是单原子和等离子体金属纳米粒子之间的重要过渡缺失。此外，亚纳米尺寸的 MNCs 具有独特的电子结构，以及随后的不寻常的光学、物理和化学性质。由于这些新颖的性质，MNCs 作为一种很有前途的材料，引起了人们的极大关注，用于构建选择性和灵敏的传感器来监测水质。因此，本综述重点介绍了各种 MNCs 的合成策略、光学和化学性质及其在开发用于检测水溶液中 Hg 离子的光学分析中的应用的最新进展。
