期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 176, 期 1-3, 页码 965-972出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2009.11.135
关键词
Mesoporous; Adsorption; CTAB; Chromium (VI); Furfural; Copperphthalocyanine
资金
- Iran University of Science and Technology (IUST, Iran)
- Iran Nanotechnology Initiative Council
The effect of cationic template on the adsorption of chromium (VI), furfural and copperphthalocyanine-3,4',4 '',4'''-tetrasulfonic acid tetrasodium salt (CuPc) in MCM-41 and MCM-48 mesoporous materials was investigated in this work. We used cetyltrimethylammonium bromide (CTAB) as the cationic template and sodiummetasilicate (for MCM-41) and tetraethyl-orthosilicon (for MCM-48) as the silica source for the synthesis of mesoporous materials. The properties of synthesized samples were characterized with XRD-low angle, SEM, N-2 adsorption-desorption and TG-DT analysis. The extent of adsorption was investigated as a function of solution pH, shaking speed, contact time, analyte concentration, reaction temperature and supporting electrolyte (sodium chloride) concentration. Langmuir and Freundlich isotherms were used to model the adsorption equilibrium data. The as-synthesized mesoporous samples showed very high adsorption capacity for the analytes and adsorption uptakes were rapid on the adsorbents reaching equilibrium in less than 2 h. The materials without surfactant did not show significant affinity for the analytes. (C) 2009 Elsevier B.V. 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