Research Progress on Chitosan/Inorganic Composite Adsorbent for Removing Heavy Metal Ions from Wastewater
Chitosan's excellent non-toxicity,biocompatibility,strong adsorption properties due to its rich functional groups and low cost make it expected to be a potential excellent adsorption material.However,unmodified chitosan is prone to hydrolysis and weak adsorption performance under acidic conditions,and the adsorption sites and mechanical strength of chitosan can be increased by compositing with other materials,and the composite material can be adapted to the adsorption environment of wastewater under different conditions.This paper discusses the properties and advantages of chitosan/inorganic composite adsorbents such as Chitosan/Magnetic Nanoparticles(CS/MNPs),Chitosan/Graphene Oxide(CS/GO),Chitosan/Clay Minerals(CS/CM),and Chitosan/Biochar(CS/BC),which are hotspots nowadays,and summarised the characteristics and advantages of chitosan/inorganic composite adsorbents,as well as the current status of these composites for the removal of common heavy metals.
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