Mesoporous silica nanoparticles (MSNs) are used as nanoadsorbents for the removal of pollutants from water. MSNs have shown very high adsorption efficiencies for various toxic metal ions from water. Recently, significant new advancements are noticed in this field of research with a potential to develop a water purification technology based on MSNs. In this overview, latest reports about the use of porous silica particles for the removal of metal ions from water are listed and critically analyzed. The maximum adsorption efficiencies of the newly developed porous silica-based materials for different metal ions are studied and comparatively analyzed. Recent trends show that, the majority of works are focused on development of hybrid and functional porous silica nanoparticles for the removal of Pb, Cd, Cu, and Cr metal ions from water. The collective information presented here will help to design future research strategies for the development and use of MSNs for removal of various pollutants from water.

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中文翻译：

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关于中孔二氧化硅从水中去除金属离子的最新进展的简短回顾

介孔二氧化硅纳米颗粒（MSN）用作纳米吸附剂，用于从水中去除污染物。MSN对来自水中的各种有毒金属离子显示出非常高的吸附效率。最近，在该研究领域中注意到了重大的新进展，并有潜力开发基于MSN的净水技术。在本概述中，列出并严格分析了有关使用多孔二氧化硅颗粒从水中去除金属离子的最新报道。研究并比较了新开发的多孔二氧化硅基材料对不同金属离子的最大吸附效率。最近的趋势表明，大多数工作都集中在开发杂化和功能性多孔二氧化硅纳米颗粒上，以从水中去除Pb，Cd，Cu和Cr金属离子。

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