Chitosan-edible oil based materials as upgraded adsorbents for textile dyes

被引：41

作者：

dos Santos, Clayane Carvalho ^{[1
]}

Mouta, Rodolpho ^{[2
]}

Castro Junior, Manoel Carvalho ^{[2
]}

Abreu Santana, Sirlane Aparecida ^{[1
]}

dos Santos Silva, Hildo Antonio ^{[1
]}

Brito Bezerra, Cicero Wellington ^{[1
]}

机构：

[1] Univ Fed Maranhao, CCET, Dept Chem, Av Portugueses 1966,Campus Bacanga, BR-65080805 Sao Luis, MA, Brazil

[2] Univ Fed Maranhao, CCET, Dept Phys, Av Portugueses,1966 Campus Bacanga, BR-65080805 Sao Luis, MA, Brazil

来源：

CARBOHYDRATE POLYMERS | 2018年 / 180卷

关键词：

Chitosan; Oil; Dye; Adsorption; Kinetics; Thermodynamics; AQUEOUS-SOLUTIONS; METHYL VIOLET; ADSORPTION; REMOVAL; CALORIMETRY; FIBERS; ACID;

D O I：

10.1016/j.carbpol.2017.09.076

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Biopolymer chitosan is a low cost, abundant, environmentally friendly, very selective and efficient anionic dyes adsorbent, being a promising material for large-scale removal of dyes from wastewater. However, raw chitosan (CS) is an ineffective cationic dyes adsorbent and its performance is pH sensitive, thus, CS modifications that address these issues need to be developed. Here, we report the preparation and characterization of two new CS modifications using edible oils (soybean oil or babassu oil), and their adsorption performance for two dyes, one anionic (remazol red, RR) and one cationic (methylene blue, MB). Both modifications extended the pH range of RR adsorption. The babassu oil modification increased adsorption capacity of the cationic dye MB, whereas the soybean oil modification increased that of RR. Such improvements demonstrate the potential of these two new CS modifications as adsorbent candidates for controlling dyes pollution in effluents.

引用

页码：182 / 191

页数：10

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