李强1; 汪印1; 余剑1; 易彬2; 杨俊2; 许光文1
Source Publication新型炭材料
AbstractSpirit lees was carbonized and then activated by steam. and CO, to prepare activated carbons. The effect of carbonization temperature, type and amount of activator, activation temperature and time on the pore structure, and the adsorption of methylene blue and iodine were investigated. The gas products during activation were analyzed online to reveal the activation mechanism Results showed that steam activation was rather more active than CO2. Regardless of the activation agent, a low carbonization temperature of 450 degrees C and a medium activation temperature of 800 degrees C favored the iodine adsorption. For the methylene blue adsorption, the same low carbonization temperature of 450 degrees C, however, medium/high activation temperatures (850 to 900 degrees C) are favorable. The best activated carbon was prepared with a steam activator using a carbonization temperature of 450 degrees C and an activation temperature of 800 C, which had a surface area and pore volume of 371.6 m(2)/g and 0.34 cm(3)/g, and iodine and methylene blue adsorption capacities of 580 mg/g and 90 mg/g respectively. O- and H-containing functional groups in the carbonized spirit lees reacted with the activation regent (steam or CO,) to form the initial pores, then the accessible active sites reacted with the activation regent to generate secondary pores.
Document Type期刊论文
First Author Affilication中国科学院过程工程研究所
Recommended Citation
GB/T 7714
李强,汪印,余剑,等. 物理活化白酒糟制备多孔炭材料[J]. 新型炭材料,2012,27(6):440.
APA 李强,汪印,余剑,易彬,杨俊,&许光文.(2012).物理活化白酒糟制备多孔炭材料.新型炭材料,27(6),440.
MLA 李强,et al."物理活化白酒糟制备多孔炭材料".新型炭材料 27.6(2012):440.
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