A reusable and highly sensitive colorimetric strip made with a waste cotton support for the detection of free Fe(II) in freshwater, seawater, and wastewater

IF 4.8 2区工程技术 Q1 MATERIALS SCIENCE, PAPER & WOOD Cellulose Pub Date : 2025-02-04 DOI:10.1007/s10570-025-06391-4

Xiangyang Jiang, Pier-Luc Tremblay, Jinke Yu, Ziyi Zhao, Mengying Xu, Huan Zhang, Qin Yu, Xiaoman Cui, Yu Liu, Tian Zhang

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Abstract

Fe(II) is a major cation that participates in biogeochemical cycles in diverse ecosystems and serves as a trace element for living organisms. Fe(II) can also become a health hazard when it is either insufficient or overabundant in water sources. Thus, the development of performant, easy-to-use, stable, and inexpensive portable systems is a central technological challenge for the on-site monitoring of free Fe(II) in different aqueous solutions. Here, we aimed to develop a sensitive and robust colorimetric Fe(II) sensor by grafting, via ester bonds, the chromogen xylenol orange (XO) on a support made of recycled waste cotton fabric (WCF). The resulting XO-grafted WCF (xWCF) sensing strip quantified free Fe(II) in tap water, lake water, seawater, and different kinds of wastewater with a limit of detection of only 0.0053 mg/L and an accuracy of at least 96%. The xWCF device, with its resistant and sustainable support, was selective for Fe(II) among 16 other metallic and non-metallic ions and was stable for long-term storage. Notably, the xWCF strip could be reused several times for free Fe (II) detection without significant variations in its performance. The high efficiency and unique characteristics of the xWCF Fe(II) sensor make it highly suitable for real-life applications.

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一种可重复使用的高灵敏度比色条，采用废棉支撑物制成，用于检测淡水、海水和废水中的游离铁（II）含量

铁（II）是多种生态系统中参与生物地球化学循环的主要阳离子，是生物体内的微量元素。当水源中的铁（II）不足或过多时，也会对健康造成危害。因此，开发高性能、易于使用、稳定且廉价的便携式系统是现场监测不同水溶液中游离铁（II）的核心技术挑战。在这里，我们的目标是通过酯键将显色剂二甲醇橙（XO）接枝到回收废棉织物（WCF）制成的支架上，开发一种灵敏而坚固的比色铁（II）传感器。所制备的xo接枝WCF （xWCF）传感条可定量自来水、湖水、海水及不同废水中的游离铁（II），检出限仅为0.0053 mg/L，准确度至少为96%。xWCF器件具有耐蚀性和可持续性支持，对Fe（II）在其他16种金属和非金属离子中具有选择性，并且长期储存稳定。值得注意的是，xWCF条带可以多次重复使用以进行自由的Fe （II）检测，而不会对其性能产生显著影响。xWCF Fe（II）传感器的高效率和独特特性使其非常适合实际应用。图形抽象

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来源期刊

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.