磷酸法水稻秆活性炭的制备

›› 2011, Vol. 45 ›› Issue (6): 19-23.

• 研究报告 • Previous Articles Next Articles

Preparation of Rice Straw Activated Carbon by Phosphoric Acid

SUN Kang¹, JIANG Jian-chun¹, LU Xin-cheng¹, LIU Xue-mei¹, LIN Guan-feng²

1. Institute of Chemical Industry of Forest Products,CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.on Forest Chemical Engineering,SFA;Key Lab. of Biomass Energy and Material,Jiangsu Province, Nanjing 210042, China;2. Fujian Academy of Forestry Science, Fuzhou 350012, China

Received:2011-06-28 Revised:1900-01-01 Online:2011-11-30 Published:2011-11-30

Abstract

Abstract: Activated carbons were prepared from rice straw by chemical activation with phosphoric acid. The impact of immersion rate and temperature on activated carbon capability were studied by N₂ adsorption, thermogravimetry and differential thermogravimetry and differential thermogravimetry (TG-DTG) analysis, and scanning electron microscope (SEM). The results showed that activated carbon can be prepared at the impregnated ratio 3∶1, activation temperature 450 ℃, activation time 60 min. Under this condition, activated carbon has the characters of methylene blue value 215 mg/g,iodine value 855 mg/g,caramel A decolo-rization capacity 110 %,specific surface area 967.72 m²/g, total volume 1.23 cm³/g, mesopores 84.6 %, average pore diameter 4.6 nm.

Key words: rice straw, activated carbon, N₂ adsorption, porosity

CLC Number:

TQ35
TQ424

SUN Kang;JIANG Jian-chun;LU Xin-cheng;LIU Xue-mei;LIN Guan-feng. Preparation of Rice Straw Activated Carbon by Phosphoric Acid[J]. , 2011, 45(6): 19-23.

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Preparation of Rice Straw Activated Carbon by Phosphoric Acid

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