Poly (vinyl alcohol)/montmorillonite clay/poly (1-vinylpyrrolidone-co-vinyl acetate) composite films for the effective removal of methylene blue

IF 1.4 4区综合性期刊 Q2 MULTIDISCIPLINARY SCIENCES

Iranian Journal of Science and Technology, Transactions A: Science Pub Date : 2024-09-21 DOI:10.1007/s40995-024-01718-5

Tilak Gasti, Shruti Dixit, Ravindra B. Chougale, Saraswati P. Masti

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Abstract

In this work, we employed the solvent casting process to produce novel composite films using poly (vinyl alcohol) (PVA), Na-montmorillonite (MMT), and poly (1-vinylpyrrolidone-co-vinyl acetate) (PVP-co-VAc). The objective of this work is to examine the effects of PVP-co-VAc concentration on the mechanical, optical, and surface wettability properties of PVA/MMT films. The developed films exhibited secondary interactions between the film components, as confirmed by the FT-IR analysis. The incorporation of PVP-co-VAc significantly enhanced film transparency and elasticity while reducing the tensile strength by 44.54%. The hydrophobic surface of the composite film has been converted to a hydrophilic one and has shown excellent swelling efficiency of 102.08% by the effect of PVP-co-VAc. Additionally, the produced composite film demonstrated outstanding methylene blue adsorption capacity (97.87%) within 40 min at ambient temperature. These results suggest that fabricated composite films will become a promising material for removing industrially toxic dyes from aqueous solutions.

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有效去除亚甲基蓝的聚乙烯醇/蒙脱土/聚（1-乙烯基吡咯烷酮-醋酸乙烯酯）复合膜

在这项工作中，我们采用溶剂铸造工艺，用聚乙烯醇（PVA）、钠蒙脱土（MMT）和聚（1-乙烯基吡罗烷酮-醋酸乙烯酯）（PVP-co-VAc）生产新型复合薄膜。这项工作的目的是研究PVP-co-VAc浓度对PVA/MMT薄膜的机械、光学和表面润湿性的影响。经FT-IR分析证实，显影膜在膜组分之间表现出二次相互作用。PVP-co-VAc的掺入显著提高了薄膜的透明度和弹性，但拉伸强度降低了44.54%。在PVP-co-VAc的作用下，复合膜的疏水表面转变为亲水表面，膨胀效率达到102.08%。此外，制备的复合膜在常温下40 min内对亚甲基蓝的吸附量达到97.87%。这些结果表明，制备的复合膜将成为去除水溶液中工业有毒染料的一种有前途的材料。

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来源期刊

Iranian Journal of Science and Technology, Transactions A: Science MULTIDISCIPLINARY SCIENCES-

CiteScore

4.00

自引率

5.90%

发文量

122

审稿时长

>12 weeks

期刊介绍： The aim of this journal is to foster the growth of scientific research among Iranian scientists and to provide a medium which brings the fruits of their research to the attention of the world’s scientific community. The journal publishes original research findings – which may be theoretical, experimental or both - reviews, techniques, and comments spanning all subjects in the field of basic sciences, including Physics, Chemistry, Mathematics, Statistics, Biology and Earth Sciences