Abstract

Flexible fabrics with excellent photothermal conversion performance are highly demanded in developing smart textiles. This work reports the deposition of copper sulfide@polydopamine (CuS@PDA) nanocomposites on the surface of cotton fabrics. The morphology and structure of CuS@PDA coated cotton fabrics were characterized by scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, X-ray diffraction (XRD) and thermogravimetric analysis. The mechanism of the deposition and bonding of CuS@PDA on the surface of cotton fabrics was discussed. It was found that PDA coating resulted in a uniform dispersion of CuS@PDA on cotton fabrics with enhanced bonding fastness between the nanocomposites and fibrous matrix. Due to the unique encapsulation structure of CuS@PDA nanocomposites, the coated cotton fabrics were used as efficient photocatalysts for photodegradation of methylene blue. In addition, the CuS@PDA coated cotton fabrics exhibited excellent photothermal conversion and thermal imaging properties. The photocatalysis and photothermal conversion performance of CuS@PDA coated cotton fabrics endows the potential in smart textile applications.

Graphic abstract

中文翻译：

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聚多巴胺辅助的CuS纳米粒子在棉织物上的沉积，具有光催化和光热转化性能

摘要

在开发智能纺织品方面，强烈要求具有优异的光热转换性能的柔性织物。这项工作报告了硫化铜@聚多巴胺（CuS @ PDA）纳米复合材料在棉织物表面的沉积。用扫描电子显微镜，透射电子显微镜，X射线光电子能谱，X射线衍射（XRD）和热重分析对CuS @ PDA涂层棉织物的形貌和结构进行了表征。探讨了CuS @ PDA在棉织物表面的沉积和结合机理。结果发现，PDA涂层可将CuS @ PDA均匀分散在棉织物上，从而增强纳米复合材料与纤维基质之间的粘合牢度。由于CuS @ PDA纳米复合材料的独特封装结构，涂覆的棉织物用作亚甲基蓝光降解的有效光催化剂。另外，涂覆有CuS @ PDA的棉织物表现出优异的光热转化和热成像性能。CuS @ PDA涂层棉织物的光催化和光热转化性能为智能纺织品应用提供了潜力。

图形摘要