Chang Seokhee, Jin Soyeon, Kim Jooyoun
Department of Fashion and Textiles, Seoul National University, Seoul 08826, Republic of Korea.
Research Institute of Human Ecology, Seoul National University, Seoul 08826, Republic of Korea.
ACS Omega. 2024 Mar 22;9(13):15074-15084. doi: 10.1021/acsomega.3c09293. eCollection 2024 Apr 2.
Polyethylene terephthalate (PET) accounts for a significant portion of textile waste, and recycling strategies for this material have attracted much attention. This study proposes a facile and innovative PET recycling method applicable to environmental remediation that involves the conversion of dyed PET fabric waste into a value-added fabric. Herein, a template-based synthesis approach capable of growing a UiO-66 metal-organic framework (MOF) directly on a dyed PET fabric is reported. The advantage of this process lies in its simplicity, where the partial hydrolysis of PET followed by a zirconium chloride treatment results in the successful growth of UiO-66 on a dyed PET fabric with the concurrent removal of the dye without additional steps. The catalytic performance of the UiO-66-grown fabric was evaluated through the degradation of dimethyl 4-nitrophenyl phosphate (DMNP), a nerve agent simulant. The fabric produced by the simple metal treatment (Zr@PET) exhibited excellent DMNP degradation performance with = 43.3 min and maintained functional stability after a harsh washing procedure, an outcome attributed to the surface-assisted UiO-66 growth that ensured good bonding stability. The developed process is innovative in that it uses dyed PET waste as a template for the direct growth of UiO-66, simplifying the process without compromising the catalytic functionality. This research provides an informative option for a sustainable textile recycling strategy by transforming dyed PET waste into an advanced self-detoxifying material.
聚对苯二甲酸乙二酯（PET）在纺织废料中占很大比例，这种材料的回收策略备受关注。本研究提出了一种适用于环境修复的简便创新型PET回收方法，该方法涉及将染色的PET织物废料转化为增值织物。在此，报道了一种基于模板的合成方法，该方法能够在染色的PET织物上直接生长UiO-66金属有机框架（MOF）。该过程的优点在于其简单性，PET的部分水解后进行氯化锆处理，可使UiO-66在染色的PET织物上成功生长，同时去除染料，无需额外步骤。通过降解神经毒剂模拟物磷酸二甲酯（DMNP）来评估生长有UiO-66的织物的催化性能。通过简单金属处理（Zr@PET）制备的织物表现出优异的DMNP降解性能，t1/2 = 43.3分钟，并且在经过严苛洗涤程序后仍保持功能稳定性，这一结果归因于表面辅助的UiO-66生长确保了良好的结合稳定性。所开发的工艺具有创新性，因为它使用染色的PET废料作为直接生长UiO-66的模板，简化了工艺且不影响催化功能。这项研究通过将染色的PET废料转化为先进的自解毒材料，为可持续的纺织品回收策略提供了一个有益的选择。
