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http://dx.doi.org/10.5012/jkcs.2013.57.1.104

Study of the Adsorbent-Adsorbate Interactions from Cd(II) and Pb(II) Adsorption on Activated Carbon and Activated Carbon Fiber  

Kim, Dae Ho (Department of Advanced Chemical Engineering, Chonnam National University)
Kim, Doo Won (Department of Advanced Chemical Engineering, Chonnam National University)
Kim, Bo-Hye (Alan G. MacDiarmid Energy Institute, Chonnam National University)
Yang, Kap Seung (Department of Advanced Chemical Engineering, Chonnam National University)
Lim, Yong-Kyun (Microfilter Co., Ltd.)
Park, Eun Nam (Microfilter Co., Ltd.)
Publication Information
Journal of the Korean Chemical Society / v.57, no.1, 2013 , pp. 104-108 More about this Journal
Abstract
The adsorption characteristics of Cd(II) and Pb(II) in aqueous solution using granular activated carbon (GAC), activated carbon fiber (ACF), modified ACF (NaACF), and a mixture of GAC and NaACF (GAC/NaACF) have been studied. The surface properties, such as morphology, surface functional groups, and composition of various adsorbents were determined using X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) measurements. The specific surface area, total pore volume, and pore size distribution were investigated using nitrogen adsorption, Brunauer-Emmett-Teller (BET), and Barrett-Joyner-Halenda (BJH) methods. In this study, NaACF showed a high adsorption capacity and rate for heavy metal ions due to the improvement of its ion-exchange capabilities by additional oxygen functional groups. Moreover, the GAC and NaACF mixture was used as an adsorbent to determine the adsorbent-adsorbate interaction in the presence of two competitive adsorbents.
Keywords
Activated carbon; Activated carbon fiber; Surface functional group; Adsorption; Interaction;
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