摘要
以活性碳纤维(ACF)为原料,采用浸渍法制备了负载金属银的改性活性碳纤维(Ag-ACF),并通过测定吸附材料在77 K的氮气吸附等温线对改性前后材料的比表面积和孔结构进行了表征。研究并比较了活性碳纤维在负载金属银后对碘的吸附性能,结果表明,在活性碳纤维上负载适量的金属银,可以显著地提高活性碳纤维对碘的吸附容量,原因是由于金属银对活性碳纤维比表面积和表面化学性质的修饰,并提高了活性碳纤维对碘的吸附势。
Metal -loaded based activated carbon fiber （ACF） was prepared by impregnation method for loading silver on to ACF （Ag -ACF）. The specific surface area and pore structure of ACF/Ag - ACF were characterized by testing its N2 adsorption isotherm al line at 77 K. The results showed that the iodine adsorption capacity on activated carbon fiber was evidently enhanced by the loading of proper amount of noble metals such as silver, which was due to the modification of specif- ic surface area and surface chemistry of activated carbon fiber, as well as the increase of adsorption potential by the loading of silver.
出处
《盐业与化工》
CAS
2013年第12期17-20,共4页
Jounral of Salt and Chemical Industry
基金
中央级公益性科研院所专项资金项目(K-JBYWF-2011-G21)
关键词
活性碳纤维
表面改性
金属银
吸附
碘
activated carbon fiber
surface modification
silver
adsorption
iodine
