Activated carbon fibers from meltblown isotropic pitch fiber webs for vapor phase adsorption of volatile organic compounds

作者：Yue Zhongren^*; Vakili Ahmad^*; Wang Jinwen

来源：Chemical Engineering Journal, 2017, 330: 183-190.

DOI：10.1016/j.cej.2017.07.150

• Activated carbon fiber
• Meltblowing process
• Isotropic pitch
• Adsorption
• Volatile organic compounds

Activated carbon fibers (ACFs) webs with potentially lower cost and high adsorption performance are fabricated from isotropic pitch by meltblowing process, stabilization in air, carbonization in N-2 and activation in CO2/H2O. The stabilization and activation conditions are studied and evaluated to prepare ACFs with high carbon yields and high surface area. The prepared ACFs are typical microporous adsorbents having a specific surface area of 1000-2000 m(2)/g and a corresponding change in pore volume and pore size distribution. The selected ACF with a surface area of 1985 m2/g has strong adsorption affinity for chloroform vapor and is superior to the commercial product Kynol (R) ACF-15 textile in terms of adsorption amount and adsorption rate due to its high specific surface area and fiber web form. Vapor phase adsorption of volatile organic compounds (VOCs) in a Thermogravimetric Analyzer demonstrates that this ACF can effectively remove different VOCs from air.

• 出版日期2017-12-15