摘要
采用凝胶水热原位生长法,在壳聚糖(Chitosan,CS)凝胶中原位合成ZIF-8晶体,探究凝胶化过程与ZIF-8形成过程的相互影响.结果表明,有机配体2-甲基咪唑对CS凝胶结构无直接影响,而金属锌离子对CS凝胶内部孔道结构的塑造起决定性作用,并会引起凝胶体积收缩.进一步研究ZIF-8/CS干态复合材料对染料亚甲基蓝(Methylene Blue,MB)的吸附性能、光催化降解性能和循环使用性能,结果表明ZIF-8/CS复合材料可作为一种稳定、高效且可循环的吸附材料并用于污水处理,拓展了块体ZIF-8/CS复合材料的应用.
ZIF-8(zeolitic imidazolate framework-8)crystals were in-situ synthesized in chitosan(CS)hydrogel by using the gel hydrothermal method.The interaction between the gelation process and the synthesis of ZIF-8 was explored.The results show that the organic ligand has no effect on the structure of CS gel,while the Zinc ions play a decisive role in shaping the pore structure of the CS gel and cause the volume shrinkage.Furthermore,the adsorption,photocatalytic degradation and cycling performance of the ZIF-8/CS composite material for the dye Methylene Blue(MB)were studied.The results show that the ZIF-8/CS composite material can be used as a stable,efficient and recyclable adsorption material and utilized in sewage treatment,which expands the application of ZIF-8/CS composite bulk material.
作者
聂景怡
梁建涛
张美云
解宏滨
宋顺喜
NIE Jing-yi;LIANG Jian-tao;ZHANG Mei-yun;XIE Hong-bin;SONG Shun-xi(College of Bioresources Chemical and Materials Engineering,Shaanxi University of Science&Technology,Xi′an 710021,China;State Key Lab of Bio-based Material and Green Papermaking,Qilu University of Technology(Shandong Academy of Sciences),Jinan 250353,China)
出处
《陕西科技大学学报》
CAS
北大核心
2021年第1期132-139,共8页
Journal of Shaanxi University of Science & Technology
基金
国家自然科学基金项目(31700513)
齐鲁工业大学生物基材料与绿色造纸国家重点实验室基金项目(KF201805,KF201806)
陕西科技大学自然科学预研基金项目(2018BJ-09)。
