引用本文:
余峻峰, 陈培荣, 俞志敏, 彭书传, 巫杨. KOH活化木屑生物炭制备活性炭及其表征[J]. 应用化学,
2013, 30(9): 1017-1022.
doi:
10.3724/SP.J.1095.2013.20492
Citation: YU Junfeng, CHEN Peirong, YU Zhimin, PENG Shuchuan, WU Yang. Preparation and Characteristic of Activated Carbon from Sawdust Bio-char by Chemical Activation with KOH[J]. Chinese Journal of Applied Chemistry, 2013, 30(9): 1017-1022. doi: 10.3724/SP.J.1095.2013.20492
Citation: YU Junfeng, CHEN Peirong, YU Zhimin, PENG Shuchuan, WU Yang. Preparation and Characteristic of Activated Carbon from Sawdust Bio-char by Chemical Activation with KOH[J]. Chinese Journal of Applied Chemistry, 2013, 30(9): 1017-1022. doi: 10.3724/SP.J.1095.2013.20492
KOH活化木屑生物炭制备活性炭及其表征
English
Preparation and Characteristic of Activated Carbon from Sawdust Bio-char by Chemical Activation with KOH
Abstract:
The activated carbon was prepared from pyrolysis bio-char of sawdust by chemical activation with KOH. The influences of the mass ratio of alkali to carbon,activation temperature and hold time toward the methylene blue adsorption on activated carbon were investigated. After this,the structure and properties of raw materials and activated carbon were characterized by nitrogen adsorption,XRD and FTIR spectroscopies. The results show that the methylene blue adsorption on activated carbon reaches to 255 mg/g at an alkali to carbon mass ratio of 1.5,an activation temperature of 750℃ and a hold time of 2 h. The activated carbon possesses a large apparent surface area(SBET=1514 m2/g) and high adsorption pore volume(V=0.821 cm3/g) with average pore size diameter of 2.170 nm.
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Key words:
- bio-char
- / chemical activation
- / activated carbon
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