Studies on pore structures and surface functional groups of pitch-based activated carbon fibers

Soo Jin Park; Yu Sin Jang; Jae Woon Shim; Seung Kon Ryu

doi:10.1016/S0021-9797(02)00081-4

Studies on pore structures and surface functional groups of pitch-based activated carbon fibers

Soo Jin Park, Yu Sin Jang, Jae Woon Shim, Seung Kon Ryu

Research output: Contribution to journal › Article › peer-review

112 Scopus citations

Abstract

The present study concerns the physical activation and chemical oxidation of pitch-based activated carbon fibers (ACFs) as ways to improve the adsorption properties. The surface oxides of the ACFs studied were determined by Boehm's titration and the pore structures were studied by the BET method with N₂/77 K adsorption. Also, the adsorption properties of the ACFs were investigated with chromium ion adsorption by different adsorption models. As a result, it was observed that carboxyl groups were largely created after nitric acid treatment on ACFs. The affinity for chromium ions increases with increasing specific surface area, micropore volume, and surface functionalities of ACFs as the activation time increases.

Original language	English
Pages (from-to)	259-264
Number of pages	6
Journal	Journal of Colloid and Interface Science
Volume	260
Issue number	2
DOIs	https://doi.org/10.1016/S0021-9797(02)00081-4
State	Published - 15 Apr 2003
Externally published	Yes

Keywords

Activated carbon
Adsorption properties
Pitch
Pore structures
Surface properties

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10.1016/S0021-9797(02)00081-4

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abstract = "The present study concerns the physical activation and chemical oxidation of pitch-based activated carbon fibers (ACFs) as ways to improve the adsorption properties. The surface oxides of the ACFs studied were determined by Boehm's titration and the pore structures were studied by the BET method with N2/77 K adsorption. Also, the adsorption properties of the ACFs were investigated with chromium ion adsorption by different adsorption models. As a result, it was observed that carboxyl groups were largely created after nitric acid treatment on ACFs. The affinity for chromium ions increases with increasing specific surface area, micropore volume, and surface functionalities of ACFs as the activation time increases.",

keywords = "Activated carbon, Adsorption properties, Pitch, Pore structures, Surface properties",

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AU - Park, Soo Jin

AU - Jang, Yu Sin

AU - Shim, Jae Woon

AU - Ryu, Seung Kon

PY - 2003/4/15

Y1 - 2003/4/15

N2 - The present study concerns the physical activation and chemical oxidation of pitch-based activated carbon fibers (ACFs) as ways to improve the adsorption properties. The surface oxides of the ACFs studied were determined by Boehm's titration and the pore structures were studied by the BET method with N2/77 K adsorption. Also, the adsorption properties of the ACFs were investigated with chromium ion adsorption by different adsorption models. As a result, it was observed that carboxyl groups were largely created after nitric acid treatment on ACFs. The affinity for chromium ions increases with increasing specific surface area, micropore volume, and surface functionalities of ACFs as the activation time increases.

AB - The present study concerns the physical activation and chemical oxidation of pitch-based activated carbon fibers (ACFs) as ways to improve the adsorption properties. The surface oxides of the ACFs studied were determined by Boehm's titration and the pore structures were studied by the BET method with N2/77 K adsorption. Also, the adsorption properties of the ACFs were investigated with chromium ion adsorption by different adsorption models. As a result, it was observed that carboxyl groups were largely created after nitric acid treatment on ACFs. The affinity for chromium ions increases with increasing specific surface area, micropore volume, and surface functionalities of ACFs as the activation time increases.

KW - Activated carbon

KW - Adsorption properties

KW - Pitch

KW - Pore structures

KW - Surface properties

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EP - 264

JO - Journal of Colloid and Interface Science

JF - Journal of Colloid and Interface Science

IS - 2

ER -

Studies on pore structures and surface functional groups of pitch-based activated carbon fibers

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Keywords

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