水凝胶壳聚糖珠离子和共价交联对碱性紫10和碱性绿4染料吸附效率的影响

IF 0.8 Q4 MATERIALS SCIENCE, BIOMATERIALS

Progress on Chemistry and Application of Chitin and its Derivatives Pub Date : 2022-09-30 DOI:10.15259/pcacd.27.009

T. Jóźwiak, U. Filipkowska, Magdalena Filipkowska

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引用次数: 0

摘要

研究了碱性紫10 (BV10)和碱性绿4 (BG4)染料在离子和共价交联壳聚糖水凝胶珠上的吸附效率。离子交联剂为柠檬酸钠、三聚磷酸钠和亚砜琥珀酸，共价交联剂为戊二醛、环氧氯丙烷和三甲基丙烷三甘油三酯醚。研究了pH对染料吸附效率的影响以及交联壳聚糖吸附剂的最大吸附量。非交联壳聚糖吸附剂对BV10和BG4的最大吸附量分别为2.94 mg/g和44.32 mg/g。离子交联降低了水凝胶壳聚糖吸附剂对阳离子染料的吸附能力(对BV10的Qmax = 1.84 ~ 2.49 mg/g;BG4为37.21 ~ 38.90 mg/g)。壳聚糖共价交联对BV10的吸附量略有提高(Qmax = 3.59 ~ 3.81 mg/g);BG4为39.15-40.62 mg/g)。

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EFFECT OF IONIC AND COVALENT CROSSLINKING OF HYDROGEL CHITOSAN BEADS ON THE ADSORPTION EFFICIENCY OF BASIC VIOLET 10 AND BASIC GREEN 4 DYES FROM AQUEOUS SOLUTIONS

This work investigated the adsorption efficiency of Basic Violet 10 (BV10)and Basic Green 4 (BG4) dyes on ionically and covalently crosslinked chitosan hydrogel beads. The tested ionic crosslinkers were sodium citrate, sodium tripolyphosphate, and sulphosuccinic acid, while the covalent crosslinkers were glutaraldehyde, epichlorohydrin, and trimethylolpropane triglycidyl ether. The scope of the work included investigation of the effect of pH on the adsorption efficiency of dyes and the maximum adsorption capacity of crosslinked chitosan adsorbents. The maximum adsorption capacity of the non-crosslinked chitosan adsorbent was 2.94 mg/g and 44.32 mg/g for BV10 and BG4, respectively. Ionic crosslinking, regardless of the type of crosslinking agent, reduced the adsorption ability of hydrogel chitosan adsorbents in relation to cationic dyes (Qmax = 1.84-2.49 mg/g for BV10; 37.21-38.90 mg/g for BG4). Covalent crosslinking of chitosan slightly increased its adsorption capacity only for BV10 (Qmax = 3.59-3.81 mg/g for BV10; 39.15-40.62 mg/g for BG4).

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来源期刊

Progress on Chemistry and Application of Chitin and its Derivatives MATERIALS SCIENCE, BIOMATERIALS-

CiteScore

1.10

自引率

16.70%

发文量

期刊介绍： Progress in the Chemistry and Application of Chitin and its Derivatives is an annual journal focused on all aspects of production, modification, enzymology and application of chitin and its many derivatives, including chitosan. The journal publishes full-length papers as well as invited reviews. To be considered, papers must present original research that has not been published or accepted for publication elsewhere. The language of the journal will be English.