Preparation of Graphite Oxide and Its Adsorption Properties for Microcystins
Microcyst ins(MCs)are widely distributed and pose potential threats to the ecological environment and human health.Conventional methods have limited effect on removing it.Graphene oxide(GO),a significant derivative of graphene,exhibits excellent adsorption properties for organic matter and heavy metal ions in water.GO was prepared by the Hummer method and characterized through the scanning electron microscopy(SEM)to explain its adsorption mechanism.Additionally,the impacts of pH,contact time,initial concentration,and dissolved organic matter(DOM)on GO adsorption of MC-LR were investigated.The results revealed that GO exhibited good adsorption performance for MC-LR,with the adsorption isotherm conforming to the Langmuir model,indicating monolayer adsorption.What's more,pH,different anions,and DOM can interfere with the adsorption process.This experiment offers new ideas and approaches for addressing the environmental hazards of MCs.
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