文章基本信息

标题：Removal of basic dyes from aqueous solutions using calix[4]resorcinarene carboxylic acid derivatives
本地全文：下载
作者：Benosmane N. ; Boutemeur B. ; Hamdi S.M. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：8
页码：2277-2291
出版社：University of Mohammed Premier Oujda
摘要：Water-insoluble calix[4]resorcinarenes derivative 1 and 2 were synthesized and used as sorbents to extract selected basic dyes rhodamine B (RB), methylen blue (MB) and methyl violet (MV). The isolated complex: calix[4]resorcinarene 1-dye were characterized by Fourier transform infrared spectroscopy, Fluorescence spectroscopy, PDRX and Differential scanning calorimetric analysis. The dye adsorption experiments were carried out from an aqueous solution in a batch reactor. The effect of several parameters has been determined to obtain the best experimental conditions. The equilibrium adsorption data were interpreted using Langmuir and Freundlich isotherms models (best correlation: R 2 > 0.997). The calculated maximum adsorption capacity (q max ) for the RB at 25 °C were 29.49 mg/g at pH=8.3. The mechanism of adsorption onto the calix[4]resorcinarene is considered to be due to a host-guest interaction between the dye and azo-calix[4]resorcinarene molecular cavity. The results showed that calix[4]resorcinarene (1) can be considered as potential adsorbents for basic dye from dilute aqueous solution
关键词：Calix[4]resorcinarene; Basic dye; ; ; Sorption isotherm; Sorption capacity; inclusion; Host;Guest