Applications of Macrocycle-Containing Adsorbents for the Removal of Ionic Pollutants
Water pollution seriously threatens human health and ecosystem.Many ionic pollutants,including heavy metals,dyes and antibiotics,are existent in environmental water.Adsorption is regarded as one of the effective means to remove ionic pollutants,but the current adsorbents still suffer from the capacity,affinity and rate for industrial water purification.Recently,organic macrocycles have shown unique advantages in ion recognition.The abundant oxygen and nitrogen atoms of macrocycles can bind ions through electrostatic attraction,coordination and hydrogen bonds,and their hydrophobic cavities would further enhance the affinity toward organic ions through ion-π,π-π and hydrophobic interactions.Therefore,the incorporation of macrocycles into adsorbents is a promising way to improve the adsorption performance toward ionic pollutants.This review summarizes the progress about macrocycle-containing adsorbents achieved in the past three years.Two kinds of macrocycle-containing adsorbents,macrocycle-based porous organic polymers and macrocycle-modified solid materials are introduced.This review not only presents the construction methods of these two kinds of materials,but also highlights the performances of their representatives in the adsorption of metal ions,nonmetallic ions and organic ions.Eventually,the development states and challenges of this field are summarized and prospected briefly.
Ion adsorptionMacrocyclic hostPorous organic polymerMacrocycle-containing adsorbentPollutant removal
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万方数据
维普
