Polysaccharide-based materials and their adsorption properties in aqueous solution

被引:51
作者
Dehabadi, Leila [1 ]
Wilson, Lee D. [1 ]
机构
[1] Univ Saskatchewan, Dept Chem, Saskatoon, SK S7N 5C9, Canada
关键词
Polysaccharide; Synthesis; Characterization; Copolymer; Adsorption; STARCH; SORPTION; AMYLOSE;
D O I
10.1016/j.carbpol.2014.06.083
中图分类号
O69 [应用化学];
学科分类号
081704 ;
摘要
Polysaccharides (PS) of cellulose, soluble, corn- and maize-derived starches with variable amylose/amylopectin content were cross-linked with epichlorohydrin (EPI) to form polymeric adsorbents. The properties of the cross-linked PS-EPI materials were prepared by varying the synthesis conditions (nature of polysaccharide, temperature, and reagent ratios) to afford network polymer materials with tunable properties. The optimized polymers were obtained at a reaction temperature (50-54 degrees C) according their yield were characterized using spectroscopic (IR and NMR) methods, and thermal gravimetric analysis (TGA). The textural and adsorptive properties of the polymers were evaluated using nitrogen gas and dye-based methods using p-nitrophenol. Solvent uptake, nitrogen adsorption, and aqueous dye sorption show that the amylose and amylopectin content in the PS-EPI copolymers display a complex relationship with their physicochemical properties. Polymers with greater cross-linking did not show incremental changes in water or dye uptake. Structural variation of the polysaccharide (i.e. branching, molecular weight, and relative amylopectin/amylose content) contributed to the sorption properties by modifying their textural properties and surface chemistry. Crown Copyright (C) 2014 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:471 / 479
页数:9
相关论文
共 35 条
[1]  
Ashish P., 2013, INT J PHARM PHARM SC, V5, P391
[2]   AN OVERVIEW ON THE TECHNOLOGY OF CROSS-LINKING OF STARCH FOR NONFOOD APPLICATIONS [J].
Ayoub, Ali S. ;
Rizvi, Syed S. H. .
JOURNAL OF PLASTIC FILM & SHEETING, 2009, 25 (01) :25-45
[3]  
Azubuike CP., 2012, INT J RECYCLING ORG, V1, DOI [10.1186/2251-7715-1-9, DOI 10.1186/2251-7715-1-9]
[4]   STUDIES ON PORE SYSTEMS IN CATALYSTS .11. PORE DISTRIBUTION CALCULATIONS FROM ADSORPTION BRANCH OF A NITROGEN ADSORPTION ISOTHERM IN CASE OF INK-BOTTLE TYPE PORES [J].
BROEKHOFF, JC ;
DEBOER, JH .
JOURNAL OF CATALYSIS, 1968, 10 (02) :153-+
[5]   Form and functionality of starch [J].
Copeland, Les ;
Blazek, Jaroslav ;
Salman, Hayfa ;
Tang, Mary Chiming .
FOOD HYDROCOLLOIDS, 2009, 23 (06) :1527-1534
[6]   Recent developments in polysaccharide-based materials used as adsorbents in wastewater treatment [J].
Crini, G .
PROGRESS IN POLYMER SCIENCE, 2005, 30 (01) :38-70
[7]   Granule size distribution and rheological behavior of heated modified waxy and unmodified maize starch dispersions [J].
daSilva, PMS ;
Oliveira, JC ;
Rao, MA .
JOURNAL OF TEXTURE STUDIES, 1997, 28 (02) :123-138
[8]   Cross-Linked Waxy Maize Starch-Based "Green" Composites [J].
Dastidar, Trina Ghosh ;
Netravali, Anil .
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, 2013, 1 (12) :1537-1544
[9]   Preparation, characterization and sorption properties of crosslinked starch-based exchangers [J].
Delval, F ;
Crini, G ;
Bertini, S ;
Filiatre, C ;
Torri, G .
CARBOHYDRATE POLYMERS, 2005, 60 (01) :67-75
[10]  
Delval F., 2000, Polymer Recycling, V5, P137