Synthesis of beta-cyclodextrin-grafted-alginate and its application for removing methylene blue from water solution

被引：33

作者：

Yang, Ji-sheng ^{[1
]}

Han, Su-ya ^{[1
]}

Yang, Li ^{[1
]}

Zheng, Hai-cheng ^{[1
]}

机构：

[1] Yangzhou Univ, Sch Chem & Chem Engn, Yangzhou 225002, Jiangsu, Peoples R China

来源：

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2016年 / 91卷 / 03期

关键词：

beta-cyclodextrin; alginate; hydrogel; methylene blue; SODIUM ALGINATE; PHOTOCATALYTIC OXIDATION; CHITOSAN; ENCAPSULATION; DEGRADATION; SOLUBILITY; COMPLEXES; BEHAVIOR; FILMS;

D O I：

10.1002/jctb.4612

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

BACKGROUND: Beta-cyclodextrin (beta-CD) has a hydrophilic exterior and a hydrophobic internal cavity which gives it the ability to form a host-guest complex. Sodium alginate (NaAlg) is a natural polysaccharide which can form a hydrogel in the presence of divalent cations. RESULTS: The degree of substitution (DS) of the resulting beta-CD grafted alginate was 12%. The adsorption ratio of beta-CD to methylene blue (MB) was close to 2: 1 which agreed with the theoretical value. The inclusion property of the Alg-beta-CD/MB-Ca hydrogel was excellent and stable. The hydrogel could be disintegrated easily with the aid of Na2CO3, and the Alg-beta-CD sol obtained could be reused. CONCLUSION: This study indicated that the method of aggregation-disintegration of the prepared hydrogel used to adsorb MB from water was effective and could be reused. (C) 2014 Society of Chemical Industry

引用

页码：618 / 623

页数：6

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