g-C3N4基异质结构复合材料选择性灵敏检测水中重金属离子的最新进展,Materials Chemistry Frontiers

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g-C3N4基异质结构复合材料选择性灵敏检测水中重金属离子的最新进展
Materials Chemistry Frontiers ( IF 6.0 ) Pub Date : 2022-07-28 , DOI: 10.1039/d2qm00431c
Dasari Ayodhya ₁

Affiliation

基于 gC ₃ N ₄纳米片的传感平台的制造，用于检测或去除废水中的重金属离子，由于其独特的性质引起了极大的兴趣，因为大多数金属离子是致癌物质并导致严重的健康问题通过产生自由基。因此，快速准确地检测金属离子已成为一个关键问题。在各种金属离子中，As( III )、Cd( II )、Pb( II )、Hg( II )、Cr( VI )、Cu( II )、Ag( I) 被认为是剧毒的。为了检测这些有毒金属离子，具有界面的比色、荧光和电化学传感器，如各种 gC ₃ N ₄纳米片基复合材料，由于其独特的物理化学性质，如结构可变性、化学强度，已被广泛研究为潜在的吸附剂，低密度和大规模制造的可能性。_{这篇综合综述总结了最近关于通过 gC 3} N ₄选择性和灵敏检测各种无机污染物（主要包括重金属离子）的研究基于纳米片的多组分复合材料作为纳米传感器，还讨论了这些纳米传感器在水和废水处理中的应用的有价值信息。此外，还强调了用于检测具有各种界面的金属离子的不同类型的纳米传感器。

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A review on recent advances in selective and sensitive detection of heavy toxic metal ions in water using g-C3N4-based heterostructured composites

The fabrication of g-C₃N₄ nanosheet-based sensing platforms for the detection or removal of heavy toxic metal ions from wastewater has attracted a great deal of interest due to their unique properties because most of the metal ions are carcinogens and lead to serious health concerns by producing free radicals. Hence, fast and accurate detection of metal ions has become a critical issue. Among various metal ions, As(III), Cd(II), Pb(II), Hg(II), Cr(VI), Cu(II), and Ag(I) are considered to be highly toxic. To detect these toxic metal ions, colorimetric, fluorometric, and electrochemical sensors with interfaces, such as various g-C₃N₄ nanosheet-based composites, have been widely studied as potential adsorbents due to their unique physicochemical properties, such as structural variability, chemical strength, low density, and the possibility of large scale fabrication. This comprehensive review summarizes the recent studies on the selective and sensitive detection of various inorganic contaminants including mainly heavy metal ions by g-C₃N₄ nanosheet-based multi-component composites as nanosensors and also discusses valuable information for applications of these nanosensors in water and wastewater treatment. Also, different types of nanosensors employed in the detection of metal ions with various interfaces have been highlighted.

更新日期：2022-07-28

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