𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Adsorption properties of polyacrylonitrile-based activated carbon hollow fiber

✍ Scribed by Junfen Sun; Guangxiang Wu; Qingrui Wang

Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
121 KB
Volume
93
Category
Article
ISSN
0021-8995

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In this work, polyacrylonitrile (PAN) hollow fibers are pretreated with ammonium dibasic phosphate and then further oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The adsorption properties of the resultant activated carbon hollow fibers (ACHF) prepared in different conditions were studied. The results show that the adsorption properties of ACHF change regularly with preparing conditions of ACHF. The different adsorption ratios to three adsorbates reflect the number of micropores and mesopores in PAN‐based ACHF. Pretreatment with phosphate can increase the number of mesopores. Proper oxidation temperature and time can increase the number of micropores and mesopores. When carbonization temperature is more than 900Β°C and carbonization time ranges from 50 to 90 min, the number of micropores and mesopores, especially mesopores, greatly increases. Compared with other treatments, activation treatment greatly increases the number of micropores and mesopores, and the dominant pore sizes of mesopores in PAN‐based ACHF are from 2 to 10 nm. Β© 2004 Wiley Periodicals, Inc. J Appl Polym Sci 93: 602–607, 2004

πŸ“œ SIMILAR VOLUMES

Influence of activation temperature on t
Influence of activation temperature on the properties of polyacrylonitrile-based activated carbon hollow fiber
✍ M.-C. Yang; D.-G. Yu πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 215 KB πŸ‘ 2 views

In this work, polyacrylonitrile hollow fiber was oxidized, carbonized, and activated by carbon dioxide into activated hollow carbon fiber. The effects of the activation temperature on the characteristics of the resulting activated hollow carbon fiber, including the mechanical properties, the surface

Effects of activation time on the proper
Effects of activation time on the properties and structure of polyacrylonitrile-based activated carbon hollow fiber
✍ Junfen Sun; Xiaqin Wang; Chaosheng Wang; Qingrui Wang πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 137 KB πŸ‘ 2 views

## Abstract Polyacrylonitrile (PAN) hollow fibers were pretreated with ammonium dibasic phosphate, then further oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The effects of activation time of a precursor fiber on the microstructure, specific surface area, pore‐size dis

Effects of the oxidation temperature on
Effects of the oxidation temperature on the structure and properties of polyacrylonitrile-based activated carbon hollow fiber
✍ Junfen Sun; Qingrui Wang πŸ“‚ Article πŸ“… 2005 πŸ› John Wiley and Sons 🌐 English βš– 140 KB πŸ‘ 2 views

## Abstract Polyacrylonitrile (PAN) hollow fibers were pretreated with ammonium dibasic phosphate, oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The effects of the oxidation temperature of the PAN hollow fiber precursor on the microstructure, specific surface, pore siz

Effects of activation temperature on the
Effects of activation temperature on the properties and structure of PAN-based activated carbon hollow fiber
✍ Junfen Sun; Qingrui Wang πŸ“‚ Article πŸ“… 2006 πŸ› John Wiley and Sons 🌐 English βš– 250 KB πŸ‘ 2 views

## Abstract Polyacrylonitrile (PAN) hollow fibers were pretreated with ammonium dibasic phosphate, then further oxidized in air, carbonized in nitrogen, and activated with carbon dioxide. The effects of activation temperature of a precursor fiber on the microstructure, specific surface, pore‐size d