Trapping and recovery of Pb2+and Cd2+by microcrystalline cellulose-based calcium carbonate composites
MCC@CaCO3 Composite material was prepared by cooling activation and ion exchange reaction using cellulose microcrystalline(MCC)and calcium carbonate(CaCO3)as substrates.The effects of fac-tors such as capture time,concentration,and pH on the removal of Cd2+and Pb2+from the solution were studied.The results showed that when the amount of Ca2+was 0.1 mol and the pH value was 5,the ad-sorption capacity of MCC@CaCO3 for Cd2+could reach 503.47 mg/g,and that for Pb2+could reach 1 076.05 mg/g,and the removal rate could reach 99.7%.
cellulose microciystallinecalcium carbonatelead and cadmium ion contaminationwater treatment
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