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Layered silicate magadiite and its composites for pollutants removal and antimicrobial properties: A review
Applied Clay Science ( IF 5.3 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.clay.2020.105823
Adel Mokhtar , Soumia Abdelkrim , Mohammed Hachemaoui , Mehdi Adjdir , Mehdi Zahraoui , Bouhadjar Boukoussa

Abstract Heavy metals, organic pollutants, carbon dioxide (CO2), pathogenic bacteria as the main contaminants of water, soil, and air are generated by the exponential increase in the world's population and industrial as well as civilization, agricultural and domestic activities. They are not only hazardous to human health but also noxious to the ecosystem, this led researchers to test and assess other effective, environmentally friendly and low-cost materials, in order to minimize these impacts. Presently, the layered silicates materials in which their structures are composed of only SiO4 tetrahedra provide many attractive physicochemical properties. Especially, magadiite which has received increasing attention in recent years, many of which environmental contaminants have been removed by adsorbents based on magadiite; that designates it to be promising material for composites and hybrids fabrication. This mineral has shown good conservation of its lamellar structure during hybridization as well as an improvement in the mechanical, chemical and thermal stability of composites containing magadiite. This review assesses the removal contaminants performance by layered silicates materials in general and the magadiite and its composites in particular. For this, the adsorption capacity of dyes, heavy metals, (CO2) and pesticides are discussed in detail, as well as the antimicrobial activity of these materials were evenly mentioned. The main properties of layered silicates in the elimination of contaminants are evaluated and the known weak points of their applying were evenly discussed in other conduce the suggestions for further research.

中文翻译:

层状硅酸盐magadiite及其复合材料用于污染物去除和抗菌性能:综述

摘要 重金属、有机污染物、二氧化碳(CO2)、病原菌作为水、土壤和空气的主要污染物,是随着世界人口和工业以及文明、农业和家庭活动的指数增长而产生的。它们不仅对人类健康有害,而且对生态系统有害,这促使研究人员测试和评估其他有效、环保和低成本的材料,以尽量减少这些影响。目前,其结构仅由 SiO4 四面体组成的层状硅酸盐材料提供了许多有吸引力的物理化学性质。尤其是近年来受到越来越多关注的magadiite,其中许多环境污染物已被基于magadiite的吸附剂去除;这表明它是复合材料和混合材料制造的有前途的材料。这种矿物在杂交过程中显示出其层状结构的良好保护,以及含有 magadiite 的复合材料的机械、化学和热稳定性的改进。本综述评估了层状硅酸盐材料的去除污染物性能,特别是 magadiite 及其复合材料。为此,详细讨论了染料、重金属、(CO2)和杀虫剂的吸附能力,并均匀地提到了这些材料的抗菌活性。评估了层状硅酸盐在去除污染物方面的主要性能,并在其他方面均匀讨论了其应用的已知弱点,为进一步研究提供了建议。
更新日期:2020-11-01
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