Preparation and characterization of activated carbon from reedy grass leaves by chemical activation with KOH

被引：5

作者：

Chen Lingzhi ^{[1
,2
]}

Miao Dongxu ^{[1
]}

Feng Xiaojie ^{[1
]}

Xu Jianzhong ^{[1
]}

机构：

[1] HeBei Univ, Coll Chem & Environm Sci, Baoding 071002, Hebei, Peoples R China

[2] Hengshui Univ, Dept Appl Chem, Hengshui 053000, Herts, Peoples R China

来源：

CHEMICAL, MATERIAL AND METALLURGICAL ENGINEERING III, PTS 1-3 | 2014年 / 881-883卷

基金：

中国国家自然科学基金;

关键词：

Activated carbons; KOH activation; Reedy grass; Pore properties;

D O I：

10.4028/www.scientific.net/AMR.881-883.579

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Activated carbons(AC) were produced by chemical activation with potassium hydroxide(KOH) at 800 degrees C from chars that were carbonized from reedy grass leaves at 450 degrees C in N-2 atmosphere. The effects of the weight ratio of KOH/char( impregnation ratio), activation temperature and duration time were examined. Adsorption capacity was demonstrated with iodine number. BET surface area, pore volume and pore size of activated carbons were characterized by N-2 adsorption isotherms. The maximum surface area and iodine number of the AC was 1100 m(2)/g and 1080 mg/g produced at 800 degrees C for2h and impregnation ratio is 4:1.The characteristics of activated carbons were determined by Infrared spectroscopy (FT-IR) and X-ray diffraction (XRD). Thermal gravimetry (TG/DTA) analysis of raw material was carried out.

引用

页码：579 / +

页数：2

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