Adsorption of ibuprofen from aqueous solution on chemically surface-modified activated carbon cloths

被引：137

作者：

Guedidi, Hanen ^{[1
,2
]}

Reinert, Laurence ^{[1
]}

Soneda, Yasushi ^{[3
]}

Bellakhal, Nizar ^{[2
]}

Duclaux, Laurent ^{[1
]}

机构：

[1] Univ. Savoie, LCME, Chambéry,F-73000, France

[2] Laboratoire de Chimie Analytique et Electrochimie, Université de Tunis, Manar II,2092, Tunisia

[3] National Institute of Advanced Industrial Science and Technology, Energy Technology Research Institute, 16-1 Onogawa, Tsukuba,Ibaraki,305-8569, Japan

来源：

Arabian Journal of Chemistry | 2017年 / 10卷

关键词：

Chlorine compounds - Isotherms - Infrared spectroscopy - Sodium compounds - Microporosity - Dyes - Activated carbon - Solutions - Surface chemistry - Pore size - Specific surface area - X ray photoelectron spectroscopy;

D O I：

10.1016/j.arabjc.2014.03.007

中图分类号：

学科分类号：

摘要：

This study aims to investigate the performance of an activated carbon cloth for adsorption of ibuprofen. The cloth was oxidized by a NaOCl solution (0.13 mol L−1) or thermally treated under N2 (700 °C for 1 hour). The raw and modified cloths were characterized by N2 adsorption–desorption measurement at 77 K, CO2 adsorption at 273 K, Boehm titrations, pHPZC measurements, X-ray Photoelectron Spectroscopy analysis, and by infrared spectroscopy. The NaOCl treatment increases the acidic sites, mostly creating phenolic and carboxylic groups and decreases both the specific surface area and slightly the micropore volume. However, the thermal treatment at 700 °C under N2 induced a slight increase in the BET specific surface area and yielded to the only increase in the carbonyl group content. Ibuprofen adsorption studies of kinetics and isotherms were carried out at pH = 3 and 7. The adsorption properties were correlated to the cloth porous textures, surface chemistry and pH conditions. The isotherms of adsorption were better reproduced by Langmuir–Freundlich models at 298, 313 and 328 K. The adsorption of ibuprofen on the studied activated carbon cloths at pH 3 was an endothermic process. The pore size distributions of all studied ibuprofen-loaded fabrics were determined by DFT method to investigate the accessible porosity of the adsorbate. Both treatments do not influence the kind of micropores where the adsorption of ibuprofen occurred. © 2014 King Saud University

引用