"PREPARATION AND CHARACTERIZATION OF TiO2-CHITOSAN COMPOSITE FILMS AND APPLICATION FOR TARTRAZINE DYE DEGRADATION "

IF 1.3 4区农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD

Cellulose Chemistry and Technology Pub Date : 2022-11-29 DOI:10.35812/cellulosechemtechnol.2022.56.98

D. Zioui, L. Aoudjit, F. Touahra, K. Bacharı

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引用次数: 0

Abstract

The aim of this work was to synthesize nanocomposite membranes based on chitosan (CS) biopolymer containing TiO2 nanoparticles (TiO2-Chitosan). The developed membranes were fully featured using different characterization techniques (SEM, TGA, XRD, FTIR and contact angle measurement). The photocatalytic activity of the fabricated membranes was evaluated by performing experiments in which aqueous solutions of tartrazine dye that contained the fabricated membrane were irradiated with solar light. The photodegradation percentage was spectrophotometrically determined by monitoring the maximum wavelengths (λmax) of tartrazine at 427 nm for different irradiation times. The decolourisation percentage of the dye under solar light was 83% using the TiO2-Chitosan membrane. The effective reusability and stability of the produced nanocomposite (TiO2-Chitosan) films was also assessed. After four use cycles, this efficiency remained practically constant, demonstrating the membranes’ reusability and suitability for catalytic activity in tartrazine removal from water.

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二氧化钛-壳聚糖复合膜的制备、表征及其在酒黄染料降解中的应用

本研究的目的是合成含TiO2纳米粒子的壳聚糖(CS)生物聚合物(TiO2-壳聚糖)纳米复合膜。利用不同的表征技术(SEM, TGA, XRD, FTIR和接触角测量)对所制备的膜进行了表征。通过将含有所制备膜的酒黄石染料水溶液用太阳光照射，评价了所制备膜的光催化活性。通过测定不同辐照时间下酒黄石在427 nm处的最大波长(λmax)，分光光度法测定其光降解率。使用tio2 -壳聚糖膜，太阳光下染料脱色率为83%。并对制备的纳米复合材料(二氧化钛-壳聚糖)薄膜的可重复使用性和稳定性进行了评价。经过四次循环使用后，该效率几乎保持不变，证明了膜的可重复使用性和从水中去除酒黄石的催化活性的适用性。

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来源期刊

Cellulose Chemistry and Technology 工程技术-材料科学：纸与木材

CiteScore

2.30

自引率

23.10%

发文量

审稿时长

7.3 months

期刊介绍： Cellulose Chemistry and Technology covers the study and exploitation of the industrial applications of carbohydrate polymers in areas such as food, textiles, paper, wood, adhesives, pharmaceuticals, oil field applications and industrial chemistry. Topics include: • studies of structure and properties • biological and industrial development • analytical methods • chemical and microbiological modifications • interactions with other materials