Preparation of nanomaterials ZIF-8@TOCN and adsorption of Rhodamine B
The ZIF-8@TOCN nanocomposites were synthesized by hydrothermal method using microcrys-talline cellulose,zinc nitrate hexahydrate and 2-methylimidazole as raw materials.The morphology,functional groups and elements of the composites were analyzed by various instruments.The adsorption effect of ZIF-8@TOCN on Rhodamine B was investigated under different adsorbent dosage,dye mass concentration,pH and temperature,and its reuse performance was evaluated through adsorption/desorption experiments.The re-sults showed that when the dosage of ZIF-8@TOCN was 20 mg in 50 mg/L Rhodamine B solution at 40℃and pH of dye solution was neutral,the adsorption rate of RhB could reach 91.50%.ZIF-8@TOCN showed good regeneration cycle ability in continuous adsorption/desorption experiments.
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