Ahmad Naseer, Rasheed Sufian, Nabeel Muhammad Ikram, Ahmad Waqas, Mohyuddin Abrar, Musharraf Syed Ghulam, Najam-Ul-Haq Muhammad, Ghouri Zafar Khan, Hussain Dilshad
HEJ Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi 75270, Pakistan.
Department of Chemistry, The Emerson University, Multan 60000, Pakistan.
Langmuir. 2023 Aug 22;39(33):11571-11581. doi: 10.1021/acs.langmuir.3c01002. Epub 2023 Aug 7.
Superhydrophobic cotton fabrics with multifunctional features are highly desired in domestic and outdoor applications. However, the short coating longevity and hazardous reagents significantly reduce their commercial-scale applications. Herein, we introduce CeO nanoparticles and stearic acid (SA) to develop a fluorine-free, durable superhydrophobic cotton fabric that mimics the lotus effect. The pristine cotton fabric is treated with APTES-functionalized CeO nanoparticles by immersion followed by a dip and drying treatment with a 2% myristic acid solution. This sequential process creates a stable superhydrophobic cotton fabric (SA/CeO-cotton fabric) with a water contact angle of 158° and a water sliding angle of 5°. The results are attributed to the combined effect of CeO nanoparticles and stearic acid that enhances surface roughness and reduces surface sorption energy. APTES facilitates the durable attachment of CeO nanoparticles and stearic acid to the cotton fabric. The modified cotton fabric is characterized by advanced analytical tools, demonstrating enhanced superhydrophobicity, self-cleaning, and antiwater absorption properties. Additionally, it exhibits remarkable UV-blocking (UPF 542) and antibacterial properties. The designed superhydrophobic cotton fabric unveils good mechanical, thermal, and chemical durability. The proposed strategy is simple, green, and economical and can be used commercially for functional fabric preparation.
具有多功能特性的超疏水棉织物在家庭和户外应用中备受青睐。然而，涂层寿命短和使用有害试剂显著减少了它们的商业规模应用。在此，我们引入CeO纳米颗粒和硬脂酸（SA）来开发一种模仿荷叶效应的无氟、耐用超疏水棉织物。将原始棉织物先用APTES功能化的CeO纳米颗粒进行浸渍处理，然后用2%肉豆蔻酸溶液进行浸涂和干燥处理。这个连续的过程创造出一种稳定的超疏水棉织物（SA/CeO-棉织物），其水接触角为158°，水滑动角为5°。这些结果归因于CeO纳米颗粒和硬脂酸的联合作用，它们增强了表面粗糙度并降低了表面吸附能。APTES促进了CeO纳米颗粒和硬脂酸与棉织物的持久附着。用先进的分析工具对改性棉织物进行表征，证明其具有增强的超疏水性、自清洁和抗吸水性能。此外，它还表现出显著的紫外线阻挡（UPF 542）和抗菌性能。所设计的超疏水棉织物展现出良好的机械、热和化学耐久性。所提出的策略简单、绿色且经济，可用于商业制备功能性织物。
