Removal of Dye from Wastewater Using a Novel Composite Film Incorporating Nanocellulose

IF 2 4区工程技术 Q3 ENGINEERING, CHEMICAL

Advances in Polymer Technology Pub Date : 2023-01-20 DOI:10.1155/2023/4431941

I. Eti, M. Khatun, Most Afroza Khatun, Md. Owaleur Rahman, K. M. Anis-Ul-Haque, Md. Jahangir Alam

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Abstract

Research shows that the composite material is used as an adsorbent to remove pollutants from wastewater. This work is aimed at producing a novel composite film comprising chitosan, polyvinyl alcohol, and cornstarch incorporating nanocellulose (CPCN). The composite film was prepared by a blending method wherein nanocellulose was extracted using a chemical method from banana bract. The prepared CPCN was characterized using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM) with EDX to understand their molecular interaction and surface morphology, respectively. The effect of parameters including pH, adsorbent dosage, initial dye concentration, and contact time on the adsorption of methylene blue (MB) dye was studied. The maximum adsorption was found to be up to 63.13 mg/g MB with a pH of 10, adsorbent dosage of 2 g, an initial concentration of 150 ppm, and contact time of 120 min at room temperature (25°C) indicating a moderate adsorption capacity of the CPCN. Comparing the Langmuir and Freundlich adsorption isotherm models, the former fitted well with MB dye adsorption data, implying that the models can be applied to uptake MB dye by CPCN. In the kinetic adsorption experiment, the adsorbed dye almost reached equilibrium at about 120 min for the CPCN and followed the pseudo-second-order kinetic model. Therefore, the CPCN can be used as a potential adsorbent in wastewater treatment.

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新型纳米纤维素复合膜去除废水中的染料

研究表明，该复合材料可作为吸附剂去除废水中的污染物。本工作旨在制备一种新型的复合膜，该膜由壳聚糖、聚乙烯醇和玉米淀粉结合纳米纤维素（CPCN）组成。通过共混法制备复合膜，其中使用化学方法从香蕉苞片中提取纳米纤维素。利用傅立叶变换红外光谱（FTIR）和EDX扫描电子显微镜（SEM）分别对制备的CPCN进行了表征，以了解它们的分子相互作用和表面形态。研究了pH、吸附剂用量、染料初始浓度和接触时间等参数对亚甲基蓝（MB）染料吸附性能的影响。发现最大吸附量高达63.13 毫克/克 MB，pH为10，吸附剂用量为2 g、初始浓度为150 ppm，接触时间为120 min，表明CPCN具有中等的吸附能力。比较Langmuir和Freundlich吸附等温线模型，前者与MB染料的吸附数据拟合良好，表明该模型可用于CPCN对MB染料的吸收。在动力学吸附实验中，吸附的染料几乎在120左右达到平衡 min，并遵循伪二阶动力学模型。因此，CPCN可以作为一种潜在的废水处理吸附剂。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advances in Polymer Technology 工程技术-高分子科学

CiteScore

5.50

自引率

0.00%

发文量

审稿时长

9 months

期刊介绍： Advances in Polymer Technology publishes articles reporting important developments in polymeric materials, their manufacture and processing, and polymer product design, as well as those considering the economic and environmental impacts of polymer technology. The journal primarily caters to researchers, technologists, engineers, consultants, and production personnel.