湖南大学学报(自然科学版)Issue(6):90-95,6.
微波改性活性炭吸附1,2-二氯乙烷的性能研究∗
Adsorption of 1,2-dichloroethane onto Activated Carbon with Microwave Modification
摘要
Abstract
Activated carbon (AC)was modified with microwave irradiation heating at 600,700 and 800 °C respectively.The physicochemical properties of the activated carbon were characterized by using Boehm titration,Fourier transformed infrared spectroscopy and Specific surface area and pore size analyzer.Fixed-bed adsorption experiments were conducted by using 1,2-dichloroethane as the adsorbate.The results show that,after microwave modification,the surface acidic functional groups of activated carbon decrease and the surface basic functional groups increase with the increase of temperature.The specific surface area and total pore volume of activated carbon decrease,while the micropore specific surface area increases.The order of the adsorption capacity for 1,2-dichloroethane is AC-800 > AC-700 > AC-600 > AC-0.The re-sults of the grey relativity analysis show that the physical properties of the modified activated carbon have a larger effect on the adsorption capacity than the surface functional groups.The fitting results of D-R model and kinetics equation illustrate that it is a physical adsorption process for activated carbon.关键词
微波改性/活性炭/吸附/1,2-二氯乙烷/灰色关联Key words
microwave modification/activated carbon/adsorption/1,2-dichloroethane/grey relativity analysis分类
化学化工引用本文复制引用
李立清,刘飒,梁鑫,刘峥..微波改性活性炭吸附1,2-二氯乙烷的性能研究∗[J].湖南大学学报(自然科学版),2015,(6):90-95,6.基金项目
国家自然科学基金资助项目(21376274,20976200),National Natural Science Foundation of China(21376274,20976200) (21376274,20976200)
APEC 科技产业合作基金资助项目(313001022) (313001022)