Functionalization of polyethylene terephthalate fabrics with au@Cu2O core@shell nanocrystals for environmental purifications
Functionalization of polyethylene terephthalate fabrics with au@Cu2O core@shell nanocrystals for environmental purifications
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DOI：
10.1016/j.mne.2023.100217
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发表时间：
2023-09
影响因子：
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通讯作者：
Jhen-Yang Wu;Mei-Jing Fang;Tomoyuki Kurioka;Ting Lai;M. Kuo;Yi-Hsuan Chiu;Chun-Wen Tsao;Yi-An Chen;Hsuan‐Hung Kuo;Yu-An Chien;Po-Wei Cheng;Bo-You Lin;Sue-min Chang;Chun-Yi Chen;M. Sone;T. Chang;Y. Hsu
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文献类型：
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作者：
Jhen-Yang Wu;Mei-Jing Fang;Tomoyuki Kurioka;Ting Lai;M. Kuo;Yi-Hsuan Chiu;Chun-Wen Tsao;Yi-An Chen;Hsuan‐Hung Kuo;Yu-An Chien;Po-Wei Cheng;Bo-You Lin;Sue-min Chang;Chun-Yi Chen;M. Sone;T. Chang;Y. Hsu
含有合成染料的废水对环境和人类健康造成了重大风险。在各种处理废水的方法中，光催化被认为是去除工业废水中染料的一种特别有效的工具。本文制备了具有38.1±2.8 （Au@Cu2O-2）、48.1±3.7 （Au@Cu2O-3）至59.1±4.1 nm （Au@Cu2O-4）可控壳厚的纳米晶体Au@Cu2O core@shell，并将其固定在聚对苯二甲酸乙二醇酯（PET）织物上，用于光催化降解亚甲基橙（MO）。研究了Au@Cu2O的壳层厚度对功能化聚酯织物光催化性能的影响。在所有测试的样品中，Au@Cu2O-3的固定化使PET织物对MO降解的光催化活性最大，达到了7.43 × 10−3min−1的MO降解表观速率常数。基于清除剂实验结果，提出了MO在官能化PET上降解的合理机理。这项工作通过结合Au@Cu2O的光催化能力和PET织物的适应性特点，提供了一种精致而实用的功能性纺织品范例。本研究结果为设计具有良好光催化能力的多功能纺织品提供了可行的思路，可用于环境净化和能量转换。
Wastewater containing synthetic dyes has caused a significant risk to the environment and human health. Among the various methods to treat wastewater, photocatalysis recommends itself as a particularly efficient tool for the removal of dyes from industrial effluents. In this work, Au@Cu2O core@shell nanocrystals with controllable shell thicknesses from 38.1 ± 2.8 (Au@Cu2O-2), 48.1 ± 3.7 (Au@Cu2O-3) to 59.1 ± 4.1 nm (Au@Cu2O-4) have been prepared and immobilized on polyethylene terephthalate (PET) fabrics for applications in photocatalytic degradation of methylene orange (MO). The influence of the shell thickness of Au@Cu2O on the photocatalytic performance of the functionalized PET fabrics has been examined. Among all the samples tested, immobilization of Au@Cu2O-3 rendered PET fabrics the largest photocatalytic activity for MO degradation, achieving an apparent rate constant of MO degradation of 7.43 × 10−3min−1. A plausible mechanism accounting for the degradation process of MO over the functionalized PET has been proposed based on the results of scavenger experiments. This work has provided a delicate yet practical functional textile paradigm by combining the photocatalytic capability of Au@Cu2O and the adaptable feature of PET fabrics. The findings from this study can deliver a viable idea for the design of versatile textiles with competent photocatalytic capacity for environmental purifications and energy conversion.