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Chemistry and Industry of Forest Products ›› 2021, Vol. 41 ›› Issue (6): 90-96.doi: 10.3969/j.issn.0253-2417.2021.06.012

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Effect of Pore Structure of Activated Carbon on Adsorption and Desorption of CS2

Xiaopeng JIAN1,2, Xinglong HOU1,2, Wei XU1,3, Shicai LIU1,3,*()   

  1. 1. Institute of Chemical Industry of Forest Products, CAF; National Engineering Lab. for Biomass Chemical Utilization; Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China
    2. Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
    3. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2020-10-20 Online:2021-12-28 Published:2021-12-31
  • Contact: Shicai LIU E-mail:lshicai@sina.com

Abstract:

The effects of the pore structure of five commercial activated carbons(AC-1, AC-2, AC-3, AC-4 and AC-5) on the adsorption/desorption performance of CS2 was studied. The pore structure of activated carbon was characterized by BET, and the effects of activated carbon on the adsorption/desorption performance of CS2 were studied by a dynamic device at room temperature. The results showed that the specific surface area, pore volume and pore size distribution of activated carbon were closely related to the adsorption/desorption performance of activated carbon on CS2. The effective adsorption pore size of activated carbon for CS2 was 3-5 times of the diameter of CS2 molecule. At the same time, it was found that the adsorption capacity of activated carbon for CS2 depended on the pore volume of the pore diameter distributed between 1.11-1.85 nm. The larger the pore volume was, the more volume of CS2 was. The desorption capacity of activated carbon for CS2 depended on the pore volume of the pore diameter distributed between 2.59-3.33 nm. The larger the pore volume was, the higher performance of activated carbon for CS2 was.

Key words: activated carbon, pore structure, carbon disulfide, adsorption, desorption

CLC Number: