摘要
为获得一种具有高效吸附性能的微孔吸附材料,以黏胶基活性炭纤维为基材,采用溶胶-凝胶水热合成法制备了A型分子筛/活性炭纤维复合材料。通过XRD、SEM、N2吸附等测试方法对该材料的晶体结构、形貌和孔隙结构进行表征,通过复合材料对低浓度二氯甲烷气体的吸附研究,系统考察了晶化温度和晶化时间对复合材料吸附性能的影响。结果表明:与活性炭纤维基材相比,分子筛/活性炭纤维复合材料的吸附性能有所提高。晶化温度和晶化时间对复合材料的吸附性能影响显著,当晶化温度为100℃、晶化时间为6h时,复合材料对二氯甲烷表现出最佳吸附性能。
In order to obtain a microporous adsorption material with excellent adsorption capacity, zeolite A/activated carbon fiber composite materials were prepared by sol-gel-hydrothermal method with rayon-based activated carbon fiber. XRD, SEM, N2 adsorption techniques were employed to characterize the crystal structure, morphology and pore structure of the composite materials. The effect of crystallization temperature and crystallization time on ad- sorption properties of the composite materials was investigated by using low concentration methylene chloride waste gas as a pollutant. The results indicate that the adsorption properties of zeolite A/activated carbon fiber composite are improved compared with those of activated carbon fiber base material. Both crystallization temperature and crys- tallization time have significant influence on adsorption properties of composite materials. The optimal adsorption ca- pacity for dichloromethane is achieved when the crystallization temperature is 100℃ and the crystallization time is 6 h.
出处
《山东科技大学学报（自然科学版）》
CAS
2016年第4期74-79,共6页
Journal of Shandong University of Science and Technology(Natural Science)
基金
中国博士后基金项目(2013M541940)
青岛开发区科技开发计划项目(2014-1-35)
关键词
活性炭纤维
A型分子筛
吸附
复合材料
晶化
activated carbon fiber
zeolite A
adsorption capacity
composite material
crystallization
