Preparation and Characterization of Activated Carbon from Reedy Grass Leaves by Chemical Activation with KOH

Ling Zhi Chen; Dong Xu Miao; Xiao Jie Feng; Jian Zhong Xu

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

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 881-883Preparation and Characterization of Activated...

Preparation and Characterization of Activated Carbon from Reedy Grass Leaves by Chemical Activation with KOH

Abstract:

Activated carbons (AC) were produced by chemical activation with potassium hydroxide (KOH) at 800°C from chars that were carbonized from reedy grass leaves at 450°C in N₂atmosphere. 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 N₂adsorption isotherms. The maximum surface area and iodine number of the AC was 1100 m²/g and 1080 mg/g produced at 800°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.

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Periodical:

Advanced Materials Research (Volumes 881-883)

Pages:

579-583

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.881-883.579

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Online since:

January 2014

Authors:

Ling Zhi Chen, Dong Xu Miao, Xiao Jie Feng, Jian Zhong Xu*

Keywords:

Activated Carbons, KOH Activation, Pore Properties, Reedy Grass

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