In Situ Growth of a Stable Metal–Organic Framework (MOF) on Flexible Fabric via a Layer-by-Layer Strategy for Versatile Applications

材料科学 涂层 多孔性 生物污染 图层(电子) 纳米技术 灵活性(工程) 织物 金属有机骨架 化学工程 复合材料 聚合物 有机化学 吸附 生物 统计 工程类 化学 数学 遗传学
作者
Wulong Li,Yaoxin Zhang,Zhen Yu,Tianxue Zhu,Jialiang Kang,Kexin Liu,Zhanxiong Li,Swee Ching Tan
出处
期刊:ACS Nano [American Chemical Society]
卷期号:16 (9): 14779-14791 被引量:123
标识
DOI:10.1021/acsnano.2c05624
摘要

Fabrics have been used broadly in daily life for an enormous variety of applications due to their intrinsic advantages, such as flexibility, renewability, and good processability. Integrating natural fabrics with metal-organic frameworks (MOFs) is an effective strategy to improve the added value of textiles with special functionalities. Here, a facile, low-cost, and scalable technology is reported for the in situ growth of MOFs on cotton fabrics. A uniform and dense coating of regular octahedral Cu-1,3,5-benzenetricarboxylic acid (CuBTC) crystals was formed on the fiber surface, followed by treatment with 1H,1H,2H,2H-perfluorooctyltriethoxysilane and triethoxyoctylsilane to create a superhydrophobic CuBTC@cotton fabric (SMCF), which greatly improved its water stability and extended superhydrophobic CuBTC's potential applications. The as-prepared MCF has a specific surface area of 229 m2/g, which is 11 times that of pristine fabrics (21 m2/g). This high porosity further endows the fabric with enhanced loading capacity of essential oils to enable excellent antibacterial ability. Moreover, the SMCF also exhibits excellent self-cleaning, UV shielding, and anti-icing performances. In addition, we performed COMSOL simulations to investigate the dynamic freezing process of water on the surface of samples, which agrees well with our experimental observations. By combining the merits of both fabrics and MOFs, the MCF is expected to extend the applications of traditional textiles in antifouling, safety, the fragrance industry, and healthcare for the next-generation multifunctional fabrics.
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