Abstract

Heavy metal pollution, as an increasingly concerned environmental issue, has attracted social attention for its causes and effects. At present, heavy metals enter soil/water bodies mainly through man-made factors such as mining, metal smelting, application of pesticides and fertilizers, and natural factors such as geological erosion and weathering. Heavy metals have the characteristics of high toxicity, non-degradation, and easy bioaccumulation, which seriously threaten the survival and safety of human beings. At present, people's research on the treatment of heavy metal ions is more in-depth, and many green and efficient absorption materials have been developed, and cellulose-based biomass adsorption materials are one of them. Cellulose is one of the most abundant renewable materials in nature, and has certain adsorption properties. However, cellulose adsorption materials have a single functional group, which can be modified to enhance the adsorption performance of heavy metal ions.

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