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ZIF-8吸附罗丹明B模拟废水热力学和动力学研究

Journal of Henan Normal University(Natural Science Edition)(2020)

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Abstract
采用液相扩散法制备沸石咪唑酯骨架材料ZIF-8吸附剂,并对其结构进行了表征.以罗丹明B溶液为模拟染料废水,考察了ZIF-8的用量、废水浓度、pH、吸附温度等因素对吸附效果的影响,并进一步研究了其吸附热力学和动力学特征.结果表明:在200 mL质量浓度为10 mg/L的罗丹明B溶液中,ZIF-8投加量为200 mg时,对其吸附率可达85%以上.该过程是一个自发吸热的物理吸附过程,符合准一级动力学模型.
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