摘要
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.
Liquid phase diffusion method was adopted to prepare ZIF-8 adsorbent,and the structures of ZIF-8 were characterized.Rhodamine B solution was used as simulated dye wastewater,the influencing factor of the amount of ZIF-8,the concentration of rhodamine B,pH and temperature were studied.At the same time,we studied the adsorption thermodynamics and kinetic characteristics.The results showed that the adsorption capacity of rhodamine B could reach more than 85%in 200 mL of 10 mg/L solution when the amount of ZIF-8 was 200 mg.The adsorption process is a spontaneous endothermic physical adsorption process,which accords with the quasi-first-order kinetic model.
作者
白书立
陈凯
李换英
刘敏超
Bai Shuli;Chen Kai;Li Huanying;Liu Minchao(School of Biotechnology and Health Sciences,Wuyi University,Jiangmen 529099,China)
出处
《河南师范大学学报（自然科学版）》
CAS
北大核心
2020年第4期73-77,共5页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(21006065)
江门市科技计划项目(2019JC01011).
