Graphene Oxide/Fe3O4/Chitosan−Coated Nonwoven Polyester Fabric Extracted from Disposable Face Mask for Enhanced Efficiency of Organic Dye Adsorption

IF 2.8 4区工程技术 Q2 CHEMISTRY, APPLIED

Adsorption Science & Technology Pub Date : 2022-01-25 DOI:10.1155/2022/8055615

H. V. Tran, N. T. Hoang, T. D. Le, L. T. Tran, H. T. Dang

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引用次数: 4

Abstract

Owing to the COVID-19 pandemic, huge amounts of disposable face masks have been manufactured and used, and these discarded face masks have to be treated. In this study, we propose a simple approach for reusing the nonwoven polyester fabric (NWPF) from disposable face masks. In this approach, NWPF is utilized as a supporter for coating of a layer of graphene oxide/Fe3O4/chitosan (GFC) to form a GFC/NWPF adsorbent at room temperature via a simple spray coating method that does not require any solvent. The specific properties of GFC, NWPF, and the GFC/NWPF adsorbent were analysed via X-ray diffraction, transmission electron microscopy, ultraviolet–visible spectroscopy, vibrating sample magnetometry, and field-emission scanning electron microscopy. Results showed that the presence of NWPF enhanced the adsorption capacity of GFC towards organic dyes. At high concentrations of the organic dyes, the adsorption efficiency of the GFC/NWPF adsorbent to the dyes reached 100% within 24 h. The adsorption capacity ( q max ) of the GFC/NWPF adsorbent to methylene blue, methyl orange, Congo red, and moderacid red was 54.795, 87.489, 88.573, and 29.010 mg g−1, respectively, which were considerably higher than that of bulk GFC (39.308, 82.304, 52.910, and 21.249 mg g−1, respectively).

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从一次性口罩中提取氧化石墨烯/Fe3O4/壳聚糖涂层非织造聚酯织物提高有机染料吸附效率

由于新冠肺炎疫情，人们生产和使用了大量的一次性口罩，这些丢弃的口罩必须得到处理。在本研究中，我们提出了一种简单的方法来再利用一次性口罩的非织造涤纶(NWPF)。在该方法中，NWPF作为载体，通过不需要任何溶剂的简单喷涂方法，在室温下涂覆一层氧化石墨烯/Fe3O4/壳聚糖(GFC)，形成GFC/NWPF吸附剂。通过x射线衍射、透射电子显微镜、紫外可见光谱、振动样品磁强计和场发射扫描电子显微镜分析了GFC、NWPF和GFC/NWPF吸附剂的性能。结果表明，NWPF的存在增强了GFC对有机染料的吸附能力。在高浓度的有机染料中，GFC/NWPF吸附剂对染料的吸附效率在24 h内达到100%。GFC/NWPF吸附剂对亚甲基蓝、甲基橙、刚果红和中酸性红的吸附量(q max)分别为54.795、87.489、88.573和29.010 mg g−1，显著高于普通GFC的吸附量(分别为39.308、82.304、52.910和21.249 mg g−1)。

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

Adsorption Science & Technology 工程技术-工程：化工

CiteScore

5.00

自引率

10.30%

发文量

181

审稿时长

4.5 months

期刊介绍： Adsorption Science & Technology is a peer-reviewed, open access journal devoted to studies of adsorption and desorption phenomena, which publishes original research papers and critical review articles, with occasional special issues relating to particular topics and symposia.