酚醛树脂基磁性活性炭的制备及性能研究  

Preparation and characterization of magnetic-activated carbon from phenolic aldehyde

作　　者：刘晓琳[1] 解强[1] 张婷婷[1] 王燕[1] 杨明顺[1] 姜勇[1] 

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083

出　　处：《功能材料》2011年第1期30-33,共4页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(20776150);2007年中国矿业大学(北京)本科生科技创新活动计划资助项目(0708)

摘　　要：以酚醛树脂为原料、二茂铁作为添加剂,制备了磁性活性炭(magnetic activated carbon,MAC),并采用气体吸附、液相吸附和振动磁强仪等方法表征了活性炭的孔结构、吸附能力和磁特性。此外,对磁性活性炭制备过程中的二茂铁添加量、活化时间等主要工艺参数进行了研究和初步优化。结果表明,二茂铁对活性炭孔隙的产生具有促进作用,提高了活性炭的吸附性能,二茂铁添加剂还赋予活性炭磁性:添加6%二茂铁时MAC的碘值为1022.03mg/g,亚甲蓝值为137.6mg/g,比饱和磁化强度达到24.85A.m2/kg,是普通活性炭的24.9倍。Magnetic activated carbons（MACs） were prepared from phenolic resin in the presence of ferrocene.Pore structures,adsorption capacity and magnetic properties of activated carbons were characterized by gas adsorption,liquid absorption and vibration magnetometer instruments.In addition,primary process parameters in magnetic activated carbon preparation,such as amount of ferrocene and activation time,were studied and optimized.Results show that ferrocene plays roles during the preparation of MAC in two respects,one is catalytic effect to regulate the pore distribution,and the other is magnetization agent to magnetize the resulted activated carbon.When 6% ferrocene is introduced into the raw material,the derived MAC behaves high adsorption and magnetic performances,i e iodine value is 1022.03mg/g,methylene blue value is 99.8mg/g and the saturation magnetization of MAC reaches up to 24.85A·m2/kg,which is 24.9 times by the common activated carbon.

关 键 词：磁性活性炭(MAC) 酚醛树脂 制备 吸附性能 磁性能 

分 类 号：TQ424.1[化学工程] R730.5[医药卫生—肿瘤]