Characterization of chitosan/montmorillonite bionanocomposites by inverse gas chromatography

被引：55
作者：
Bensalem, S. [1 ]
Hamdi, B. [2 ,3 ]
Del Confetto, S. [4 ]
Iguer-Ouada, M. [5 ]
Chamayou, A. [4 ]
Balard, H. [6 ]
Calvet, R. [4 ]
机构：
[1] Univ Ouargla, Fac Sci Nat & Vie, Dept Sci Biol, Ouargla 30000, Algeria
[2] USTHB, Fac Chim, Lab Etud Phys Chim Mat & Applicat Environm, BP 32 El Alia, Algiers 16111, Algeria
[3] ENSSMAL, BP 19 Bois Cars, Algiers 16320, Algeria
[4] Univ Toulouse, Ctr RAPSODEE, CNRS UMR 5302, Mines Albi, Campus Jarlard, F-81013 Albi 09, France
[5] Univ Abderrahmane Mira, Fac Sci Nat & Vie, Lab Ecosyst Marin & Aquacole, Bejaia 06000, Algeria
[6] Adscientis, 1 Rue Kastler, F-68310 Wittelsheim, France
来源：
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 2017年 / 516卷
关键词：
Chitosan; Montmorillonite; Bionanocomposite; Inverse gas chromatography; XPS; Surface heterogeneity; SURFACE CHARACTERIZATION; CLAY NANOCOMPOSITES; AQUEOUS-SOLUTION; THERMAL-ANALYSIS; CHITOSAN; ADSORPTION; MONTMORILLONITE; REMOVAL; CHITIN;
D O I：
10.1016/j.colsurfa.2016.12.051
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Montmorillonite was modified with different amounts of chitosan to obtain chitosan/montmorillonite bionanocomposites (CSMMT). The structural and surface characteristics of the raw materials and bionanocomposites were analyzed. XPS results showed that the obtained bionanocomposites had MMT-rich surfaces with chitosan essentially intercalated in the host clay galleries. IGC at infinite dilution confirmed that the increase of CS mass ratio in the bionanocomposites significantly affected the surface properties. IGC at finite concentration revealed a clear evolution in the surface heterogeneity in chitosan/montmorillonite bionanocomposites by the progressive disappearance of shoulders of high energy with the increase of CS mass ratio in MMT. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：336 / 344
页数：9
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