活性蓝染色棉织物的fenton辅助脱色策略[j]

IF 4.8 2区 工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD
Hao Wu, Chang-E Zhou, Chi-wai Kan, Jiahe Feng, Rong Li, Zhiguang Li, Qing Zhang, Huixia Li
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引用次数: 0

摘要

纺织工业的快速发展和快时尚的流行产生了大量的废弃纺织品,对环境构成了重大挑战。脱色是有色废旧纺织品回收再利用的重要环节。然而,传统的纺织品脱色方法往往会造成严重的环境和水资源污染。本研究旨在开发一种高效、环保的fenton辅助脱色方法,去除废棉织物中的活性染料,特别是活性蓝21,以促进回收和再利用。脱色过程包括两步方法:用二氧化硫脲和亚铁离子(Fe2+)预处理,然后用过氧化氢(H2O2)氧化脱色。对药剂用量、初始溶液pH、温度、持续时间等参数进行了优化,在保持织物强度的同时达到较高的脱色效果。优化后的工艺脱色率达到90%以上,抗拉强度损失在10%以内。表征技术包括傅里叶变换红外光谱、x射线衍射、热重分析和扫描电镜,揭示了棉纤维的结构和化学转变,为脱色机理提供了见解。该方法还证明了对一系列活性染料的高适用性,特别是偶氮基染料。这项研究强调了芬顿辅助方法在纺织品回收中可扩展应用的潜力,提供了一个可持续的解决方案,在保持纤维质量的同时解决废棉织物的脱色挑战。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。

A Fenton-assisted decolorization strategy for the cotton fabrics dyed with reactive blue 21

A Fenton-assisted decolorization strategy for the cotton fabrics dyed with reactive blue 21

A Fenton-assisted decolorization strategy for the cotton fabrics dyed with reactive blue 21

The rapid growth of the textile industry and the prevalence of fast fashion have generated vast amounts of waste textiles, posing significant environmental challenges. Decolorization is a vital step in the recycling and reuse of colored waste textiles. However, conventional textile decolorization methods often pose serious environmental and water resource pollutions. This study aims to develop an efficient and eco-friendly Fenton-assisted decolorization method to remove reactive dyes, specifically reactive blue 21, from waste cotton fabrics to facilitate recycling and reuse. The decolorization process involved a two-step approach: pre-treatment with thiourea dioxide and ferrous ions (Fe2+), followed by oxidative decolorization using hydrogen peroxide (H2O2). Parameters such as agent dosage, initial solution pH, temperature, and duration were optimized to achieve high decolorization efficiency while maintaining fabric strength. The optimized process achieved a decolorization rate of over 90%, with minimal tensile strength loss within 10%. Characterization techniques including Fourier Transform Infrared Spectroscopy, X-ray Diffraction, Thermogravimetric Analysis and Scanning Electron Microscopy revealed the structural and chemical transformations in the cotton fibers, providing insights into the decolorization mechanisms. The method also demonstrated high applicability across a range of reactive dyes, particularly azo-based dyes. This research highlights the potential of the proposed Fenton-assisted method for scalable application in textile recycling, offering a sustainable solution to address decolorization challenges in waste cotton textiles while maintaining fiber quality.

Graphical abstract

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来源期刊
Cellulose
Cellulose 工程技术-材料科学:纺织
CiteScore
10.10
自引率
10.50%
发文量
580
审稿时长
3-8 weeks
期刊介绍: Cellulose is an international journal devoted to the dissemination of research and scientific and technological progress in the field of cellulose and related naturally occurring polymers. The journal is concerned with the pure and applied science of cellulose and related materials, and also with the development of relevant new technologies. This includes the chemistry, biochemistry, physics and materials science of cellulose and its sources, including wood and other biomass resources, and their derivatives. Coverage extends to the conversion of these polymers and resources into manufactured goods, such as pulp, paper, textiles, and manufactured as well natural fibers, and to the chemistry of materials used in their processing. Cellulose publishes review articles, research papers, and technical notes.
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