Functionalized porous organic materials as efficient media for the adsorptive removal of Hg(II) ions,Environmental Science: Nano

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Functionalized porous organic materials as efficient media for the adsorptive removal of Hg(II) ions
Environmental Science: Nano ( IF 5.8 ) Pub Date : 2020-09-10 , DOI: 10.1039/d0en00714e
Arindam Modak _{1,

2,

3,

4,

5} , Piyali Bhanja _{5,

6,

7,

8} , Manickam Selvaraj _{9,

10,

11,

12,

13} , Asim Bhaumik _{5,

6,

7,

8}

Affiliation

Mercury contamination is one of the major environmental and health issues that has been affecting our lives for several decades. To address this matter, a rational design of robust adsorbent materials bearing chelating sites for binding with Hg²⁺ is highly desirable. Porous organic materials have recently emerged as excellent adsorbent materials for heavy metal ions and toxic gases. These porous nanomaterials are generally synthesized via bottom-up chemical reactions, which offer ample opportunities for modifying their structure through the incorporation of various functional sites, thereby, rendering them as an essential platform for designing flexible materials with numerous applications. Scalable synthetic approaches, together with high specific surface area and robustness of framework distinguishes porous organic materials, such as porous organic polymers (POPs) and covalent organic frameworks (COFs), as versatile and indispensable nanoscale materials along with other frontline porous materials including porous carbons, zeolites, aluminophosphates, metal–organic frameworks (MOFs), functionalized mesoporous silica, and periodic mesoporous organosilicas (PMOs). It is worthy to mention that a tailorable structural design approach of POPs and COFs offer adjustable surface property in terms of specific surface area, pore size, and functionality, which can be advantageous towards achieving a benchmark adsorbent material for the detoxification of wastewater to counter harmful environmental effects. Although POPs/COFs are outstanding in removing mercury from contaminated water, to the best of our knowledge, till date, there is hardly any comprehensive review that exclusively highlights all such discoveries. In this review, we highlight some major achievements in the synthesis of porous organic materials and their potential as adsorbents for the removal of Hg(II) from different water resources including actual conditions together with their future potential in water purification technologies.

中文翻译：

功能化的多孔有机材料作为吸附性去除Hg（II）离子的有效介质

汞污染是影响我们生活数十年的主要环境和健康问题之一。为了解决这个问题，非常需要具有螯合位点以与Hg ²⁺结合的坚固的吸附材料的合理设计。近年来，多孔有机材料已成为重金属离子和有毒气体的优良吸附材料。这些多孔纳米材料通常通过自下而上的化学反应，通过结合各种功能位点提供了充分的机会来改变其结构，从而使它们成为设计具有多种应用的柔性材料的必要平台。可扩展的合成方法以及高比表面积和骨架坚固性将多孔有机材料（如多孔有机聚合物（POP）和共价有机骨架（COF））与其他通用的，不可或缺的纳米级材料以及包括多孔碳在内的其他一线多孔材料区分开来，沸石，铝磷酸盐，金属有机骨架（MOF），功能化介孔二氧化硅和周期性介孔有机二氧化硅（PMO）。值得一提的是，POPs和COFs的量身定制的结构设计方法可根据比表面积，孔径和功能性提供可调整的表面特性，这对于实现基准的吸附剂材料以对废水进行排毒以对抗有害物质具有优势。环境影响。尽管POPs / COFs在去除受污染水中的汞方面非常出色，但据我们所知，迄今为止，几乎没有任何全面的综述专门强调所有这些发现。在这篇综述中，我们重点介绍了多孔有机材料的合成方面的一些主要成就以及它们作为脱除汞的吸附剂的潜力。这对于获得用于废水排毒的基准吸附剂材料以对抗有害的环境影响可能是有利的。尽管POPs / COFs在去除受污染水中的汞方面非常出色，但据我们所知，迄今为止，几乎没有任何全面的综述专门强调所有这些发现。在这篇综述中，我们重点介绍了多孔有机材料的合成方面的一些主要成就以及它们作为脱除汞的吸附剂的潜力。这对于实现用于废水排毒的基准吸附材料以对抗有害的环境影响可能是有利的。尽管POPs / COFs在去除受污染水中的汞方面非常出色，但据我们所知，迄今为止，几乎没有任何全面的综述专门强调所有这些发现。在这篇综述中，我们重点介绍了多孔有机材料的合成方面的一些主要成就以及它们作为脱除汞的吸附剂的潜力。II）来自不同水资源的信息，包括实际情况以及它们在净水技术中的未来潜力。

更新日期：2020-10-17

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