期刊
BIOMASS & BIOENERGY
卷 46, 期 -, 页码 102-110出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.biombioe.2012.09.023
关键词
Gossypium hirsutum; ZnCl2 chemical activation; Microporous material; Pseudo second order kinetics model; Langmuir isotherm
资金
- Faculty of Science, The Chinese University of Hong Kong [2060415]
Activated carbon fiber (ACF) was fabricated by annealing and activating cotton with ZnCl2 in argon. We found that the cotton became microporous ACF, and it retained the original fibrous structure of cotton. Its BET surface area was up to 2060 m(2) g(-1). The Fourier Transform Infrared Spectrometry confirmed that it possessed a large number of oxygen functional groups. The adsorption capacity of this ACF product was evaluated in its adsorption of methylene blue (MB) in water under different pH values. We found that the adsorption process was well described by both the Langmuir isotherm model and the pseudo second order kinetics model. The ACF sample was effective in adsorbing MB in the neutral and alkaline conditions. The monolayer capacity for MB was up to 597 mg g(-1) and was one of the highest among similar activated carbon product. It was due to its large BET surface area. (C) 2012 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据