Universiti Teknologi Malaysia Institutional Repository

Adsorption of Cd(II) on activated carbon fiber prepared from polyacrylonitrile (PAN)

Furuyado, Mami and Ahmad Zaini, Muhammad Abbas and Aikawa, Masami and Amano, Yoshimasa and Machida, Motoi (2010) Adsorption of Cd(II) on activated carbon fiber prepared from polyacrylonitrile (PAN). Journal of Environmental Chemistry, 20 (4). pp. 379-384. ISSN 1869-1099

[img] HTML - Published Version
1MB

Abstract

Polyacrylonitrile (PAN)-based activated carbon fiber (PAN-ACF) was prepared with various temperatures of both air treatment (350, 400, 425 and 450 ?) and activation (850 and 900 °C). The observation for the surface nitrogen with X-ray photoelectron spectroscopy (XPS) showed the presence of quaternary-N and pyridinic-N on PAN-ACF. The rise in both the air treatment and the activation temperature increased the nitrogen content in PAN-ACF and also extended the specific surface area. The resultant PAN-ACF prepared at the higher temperature preferably adsorbed Cd(II). The amounts of Cd(II) adsorption were much greater for PAN-ACF than the commercial coal pitch-based ACF containing less amount of nitrogen despite that specific surface area for the coal pitch ACF was twice as great as that for PAN-ACF. The activated carbon fiber possessing greater nitrogen content in the peripheral of the graphite sheet was considered to be effective for the Cd(II) adsorption.

Item Type:Article
Subjects:T Technology > TP Chemical technology
Divisions:Chemical Engineering
ID Code:37067
Deposited By:INVALID USER
Deposited On:31 Mar 2014 09:20
Last Modified:13 Oct 2017 19:01

Repository Staff Only: item control page