用磷酸盐预处理制备PAN基活性中空炭纤维  

PAN-BASED ACTIVATED CARBON HOLLOW FIBER PRETREATED WITH PHOSPHATE

作　　者：孙俊芬[1] 吴光香[1] 武利顺[1] 王庆瑞[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室,上海200051

出　　处：《离子交换与吸附》2004年第4期348-356,共9页Ion Exchange and Adsorption

基　　金：上海市重点学科建设项目资助

摘　　要：用不同浓度的 (NH4)2HPO4溶液和不同浸渍时间处理过的聚丙烯腈 (PAN) 基中空纤维在空气中270℃预氧化,并在N2气氛下于700℃炭化,随后用CO2气体在800℃活化,测定了PAN基活性中空炭纤维对肌酐、VB12和胆红素的吸附量。考察了 (NH4)2HPO4的浓度和浸渍时间对PAN基活性中空炭纤维性能的影响。通过 (NH4)2HPO4的预处理可以有效地提高PAN基活性中空炭纤维的活化收率,改善PAN基活性中空炭纤维的吸附性能。Polyacrylonitrile hollow fibers are pretreated with diammonium of different concentration and for different time in diammonium solution, then further oxidized in air at 270?, carbonized in nitrogen at 700? and activated with carbon dioxide at 800?. The adsorption properties of PAN-Based ACHF produced at different condition to creatinine, VB12 and bilirubin are tested. The influence of pretreating condition on the properties of the resultant activated hollow carbon fibers is discussed.

关 键 词：(NH4)2HPO4 PAN 活性中空炭纤维 吸附性能 

分 类 号：TQ424[化学工程]