摘要
以醋酸钠为矿化剂,通过水热法制备金属有机框架MIL-101,用X射线衍射仪、扫描电镜、红外光谱仪、气体吸附仪等对材料进行表征,利用静态吸附法对苯、甲醇、甲苯和水的吸附性能进行研究.结果表明:制备的MIL-101形貌为八面体,颗粒尺寸约为500 nm,其VOCs吸附性能与220℃制备所得的MIL-101(HF)性能相当,优于210和200℃制备所得的产物,明显优于商业活性炭,在25℃下,对苯、甲醇和甲苯的吸附量分别达到1300、1127.7和750 mg/g.通过比较吸附等温线的初始斜率发现,甲苯/水的吸附选择性最好,苯其次,甲醇最差.
The metal-organic framework MIL-101 was prepared by hydrothermal method with sodium acetate as mineralizer.The material was characterized by X-ray diffraction,scanning electron microscopy,infrared spectroscopy and gas adsorption instrument.The adsorption properties of benzene,methanol,toluene and water were studied by static adsorption method.The results show that the prepared MIL-101 has octahedral morphology and particle size of about 500 nm.Its VOCs adsorption properties are similar to those of MIL-101(HF)prepared at 220℃.It is superior to those of commercial activated carbon prepared at 210/200℃.At 25℃,the adsorption capacity of benzene,methanol and toluene reaches 1300,1127.7 and 750 mg/g,respectively.By comparing the initial slope of adsorption isotherm,it was found that toluene/water had the best adsorption selectivity,followed by benzene and methanol.
作者
朱文健
刘建峰
胡小才
杨振
袁爱华
陈海丰
唐盛
ZHU Wenjian;LIU Jianfeng;HU Xiaocai;YANG Zhen;YUAN Aihua;CHEN Haifeng;TANG Sheng(School of Metallurgical and Materials Engineering, Jiangsu University of Science and Technology, Zhangjiagang 215600, China;Shanghai Waigaoqiao Shipbuilding Co.Ltd., Shanghai 200120, China;School of Environmental and Chemical Engineering,Jiangsu University of Science and Technology, Zhenjiang 212003, China;Marine Equipment and Technology Institute, Jiangsu University of Science and Technology, Zhenjiang 212003,China)
出处
《江苏科技大学学报（自然科学版）》
CAS
2020年第3期79-83,118,共6页
Journal of Jiangsu University of Science and Technology:Natural Science Edition
基金
国家自然科学基金资助项目(51672114)
工信部高技术船舶科研项目(工信部装函[2017]614号)
江苏高校高技术船舶协同创新中心资助项目(HZ20180004)。
