Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan-based Adsorbents: A Mini Review.,The Chemical Record

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Removal of Mercury Ions from Aqueous Solutions by Crosslinked Chitosan-based Adsorbents: A Mini Review.
The Chemical Record ( IF 7.0 ) Pub Date : 2020-09-04 , DOI: 10.1002/tcr.202000073
Dan Zhang ₁ , Grégorio Crini ₂ , Eric Lichtfouse _{3,

4} , Baker Rhimi ₁ , Chuanyi Wang ₁

Affiliation

Abatement of mercury emissions in air and waters has become a global challenge due to the toxicity of mercury species for life, yet actual remediation techniques are limited. In particular, adsorption of mercury ions onto solids is widely used but most adsorption techniques are not specific, and in turn, removal efficiency is lower. Adsorbents developed so far include activated carbon, clay, bentonite, cellulose and chitosan. Chitosan derivatives have recently attracted research attention for water purification because their molecular frames contain a large amount of −NH₂ and −OH groups that can chelate with metal ions specifically. This manuscript reviews recent advances in chitosan‐based adsorbents designed to remove mercury ions from wastewater. Focus is placed on their design, synthesis, characterization, adsorption properties, adsorption mechanisms and applications.

中文翻译：

交联的壳聚糖基吸附剂从水溶液中去除汞离子：综述。

由于汞物种对生命的毒性，减少空气和水体中的汞排放已成为全球性挑战，但实际的修复技术受到限制。特别是，汞离子在固体上的吸附被广泛使用，但是大多数吸附技术不是特定的，因而去除效率较低。迄今为止开发的吸附剂包括活性炭，粘土，膨润土，纤维素和壳聚糖。壳聚糖衍生物由于其分子框架含有大量的-NH _2，最近在水净化方面引起了研究关注。和-OH基团可以特别地与金属离子螯合。本手稿回顾了旨在脱除废水中汞离子的壳聚糖基吸附剂的最新进展。重点放在它们的设计，合成，表征，吸附性能，吸附机理和应用上。

更新日期：2020-10-17

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