Bouazizi Nabil, Vieillard Julien, Samir Brahim, Le Derf Franck
The Normandie Universite, UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), 27000 Evreux, France.
Polymers (Basel). 2022 Jan 19;14(3):378. doi: 10.3390/polym14030378.
In the last decade, adsorption has exhibited promising and effective outcomes as a treatment technique for wastewater contaminated with many types of pollutants such as heavy metals, dyes, pharmaceuticals, and bacteria. To achieve such effectiveness, a number of potential adsorbents have been synthesized and applied for water remediation and antimicrobial activities. Among these inorganic adsorbents (INAD), activated carbon, silica, metal oxide, metal nanoparticles, metal-organic fibers, and graphene oxide have been evaluated. In recent years, significant efforts have been made in the development of highly efficient adsorbent materials for gas and liquid phases. For gas capture and water decontamination, the most popular and known functionalization strategy is the chemical grafting of amine, due to its low cost, ecofriendliness, and effectiveness. In this context, various amines such as 3-aminopropyltriethoxysilane (APTES), diethanolamine (DEA), dendrimer-based polyamidoamine (PAMAM), branched polyethyleneimine (PEI), and others are employed for the surface modification of INADs to constitute a large panel of resource and low-cost materials usable as an alternative to conventional treatments aimed at removing organic and inorganic pollutants and pathogenic bacteria. Amine-grafted INAD has long been considered as a promising approach for the adsorption of both inorganic and organic pollutants. The goal of this review is to provide an overview of surface modifications through amine grafting and their adsorption behavior under diverse conditions. Amine grafting strategies are investigated in terms of the effects of the solvent, temperature, and the concentration precursor. The literature survey presented in this work provides evidence of the significant potential of amine-grafted INAD to remove not only various contaminants separately from polluted water, but also to remove pollutant mixtures and bacteria.
在过去十年中，吸附作为一种处理受多种污染物（如重金属、染料、药物和细菌）污染的废水的技术，已展现出有前景且有效的成果。为实现这种有效性，人们合成了多种潜在的吸附剂并将其应用于水修复和抗菌活性研究。在这些无机吸附剂（INAD）中，活性炭、二氧化硅、金属氧化物、金属纳米颗粒、金属有机纤维和氧化石墨烯已得到评估。近年来，在开发用于气相和液相的高效吸附材料方面已做出了重大努力。对于气体捕获和水净化而言，由于其成本低、生态友好且有效，最流行且广为人知的功能化策略是胺的化学接枝。在此背景下，各种胺，如3-氨丙基三乙氧基硅烷（APTES）、二乙醇胺（DEA）、基于树枝状大分子的聚酰胺胺（PAMAM）、支化聚乙烯亚胺（PEI）等，被用于对INADs进行表面改性，以构成一大类可替代传统处理方法的资源丰富且低成本的材料，这些传统处理方法旨在去除有机和无机污染物以及致病细菌。长期以来，胺接枝的INAD一直被视为吸附无机和有机污染物的一种有前景的方法。本综述的目的是概述通过胺接枝进行的表面改性及其在不同条件下的吸附行为。从溶剂、温度和前驱体浓度的影响方面研究了胺接枝策略。本工作中呈现的文献调查证明了胺接枝的INAD不仅在从污染水中分别去除各种污染物方面，而且在去除污染物混合物和细菌方面具有巨大潜力。
