Toluene adsorption on various activated carbons with different pore structures

Yan Song, Wen Ming Qiao, Seong Ho Yoon, Isao Mochida

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18 Citations (Scopus)

Abstract

The toluene adsorption behavior of various activated carbons with different surface areas and pore structures was investigated by a static method at saturation concentration and a dynamic method at low concentration. The pore structures of these activated carbons were characterized by nitrogen adsorption at 77 K and 129Xe-NMR measurements. Results showed that activated carbons with a larger pore volume have the higher toluene adsorption capacity at saturation concentration. But at low concentration, activated carbons with abundant micropores and a narrow pore size have a higher adsorption capacity. Among the investigated samples, pitch-based activated carbon fibers (ACFs) showed a better toluene adsorption capacity at low concentration (2 × 10-5). With the increase of surface area for ACFs, the toluene ad sorption capacities at low concentration (2 × 10-5) increase slightly and for OG5A, OG10A, OG15A and OG20A at 30°C were 202 mg/g, 219 mg/g, 221 mg/g and 235 mg/g respectively.

Original languageEnglish
Pages (from-to)294-298
Number of pages5
JournalXinxing Tan Cailiao/New Carbon Materials
Volume20
Issue number4
Publication statusPublished - Dec 1 2005

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All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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