化工学报Issue(2):314-320,7.DOI:10.11949/j.issn.0438-1157.20141127
机械化学法合成金属有机骨架材料HKUST-1及其吸附苯性能
Mechano-chemical synthesis of HKUST-1 with high capacity of benzene adsorption
摘要
Abstract
Metal-organic frameworks (MOFs) are a new class of nanoporous materials. An efficient and environmentally friendly method for the synthesis of MOFs is needed for efficient industrial applications. In this work, a porous metal-organic framework HKUST-1 was prepared by the mechano-chemical method. The effects of different activation solvents (chloroform and ethanol) on the surface area, pore structure and benzene adsorption of HKUST-1 were investigated. The mechano-chemical synthesis time of HKUST-1 could be reduced from 24 h to 30 min compared with the hydrothermal method. The surface area and pore volume of HKUST-1 were significantly affected by activation solvents. Using ethanol as an activation solvent could more easily displace the precursors remaining in the channels of HKUST-1, thus achieving a larger surface area (1442.7 m2·g−1) and 25%higher benzene adsorption (6.90 mmol·g−1 at 298 K and 8 kPa). Under the same condition, the benzene absorption capacity of the HKUST-1 sample was higher than the regular absorbents, such as activated carbon, molecular sieve and zeolite.关键词
机械化学法/HKUST-1/活化/苯/吸附/吸附等温线Key words
mechano-chemical method/HKUST-1/activation/benzene/adsorption/adsorption isotherm分类
通用工业技术引用本文复制引用
李玉洁,苗晋朋,孙雪娇,肖静,夏启斌,奚红霞,李忠..机械化学法合成金属有机骨架材料HKUST-1及其吸附苯性能[J].化工学报,2015,(2):314-320,7.基金项目
自然科学基金项目(21276092);中央高校基本科研业务费重点项目(2013ZZ0060);亚热带建筑科学国家重点实验室自主研究课题(2014ZC12)。 ()