紫茎泽兰制备活性炭及其性质  

Preparation and Characterization of Activated Carbon from Eupatorium adenophorum

作　　者：孙康[1] 蒋剑春[1] 李静[1] 戴伟娣[1] 

机构地区：[1]中国林业科学研究院林产化学工业研究所,南京210042

出　　处：《林业科学》2010年第3期178-182,共5页Scientia Silvae Sinicae

基　　金：国家科技支撑项目(2006BAD19B06);中国林业科学研究院林业新技术研究所所长基金(CAFINT2007C16)

摘　　要：紫茎泽兰（Eupatorium adenophorum）是一种分布广泛的林业恶性杂草,属亚灌木类,俗称＂解放草＂（王林等,2004）,自从20世纪50年代从西南边境一带传入中国,在云南、四川、贵州等地迅速泛滥成灾，目前已被列入我国首批外来入侵物种，排在第1位。Eupatorium adenophorum stem was used to prepare activated carbon using phosphoric acid as activation agent with activation temperature at 550 ℃ and activation duration of 40 min. The influence of impregnation ratios of prepared activated carbon on the adsorption capacity was evaluated,the character and micro-structure were fully studied. Results showed impregnation ratios 2 ∶ 1 was optimal and characteristics of activated carbon with a high yield （ 40. 2% ） are： specific surface area （SBET） 1 767. 9 m2·g -1 ,total volume 2. 261 cm3 ·g -1 ,iodine number of adsorbent （ qiodine） 1 056 mg·g -1 ,amount of methylene blue adsorption of adsorbent （ qmb ） 270 mg · g -1 ,caramel A decolorization capacity 100% and ash 1. 2% . The wide pore size distribution was described by BJH theory and SEM analysis. The activation course was discussed by TG analysis. It is demonstrated that Eupatorium adenophorum is an attractive source of raw material for producing high capacity activated carbon by phosphoric acid activation.

关 键 词：紫茎泽兰 活性炭 N2吸附 孔径孔容 热重分析 

分 类 号：TQ424.1[化学工程]