Singhal Hritik, Pandit Sapan Kumar, Kumari Preeti, Kumar Aditya
Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India.
Department of Chemical Engineering, Indian Institute of Technology (Indian School of Mines) Dhanbad, Jharkhand 826004, India.
Mar Pollut Bull. 2024 Mar;200:116062. doi: 10.1016/j.marpolbul.2024.116062. Epub 2024 Jan 29.
The present study aims to address the issue of oil in water pollution by application of a superhydrophobic cotton fabric. The superhydrophobic cotton fabric with a water contact angle of 158 ± 2°, is developed by a solution immersion technique using zirconium dioxide (ZrO) nanoparticles and hexadecyltrimethoxysilane. The synthesis parameters such as concentration, curing temperature, and immersion time were optimized using Box-Behnken design method. With mechanical durability, chemical resilience and thermal stability, the coated fabric can separate different oil-water mixtures with an efficiency of 99.9 %. The coated fabric can also be reused for 50 separation cycles in acidic and neutral medium. Besides, droplet dynamic behavior of oil-water mixture has also been studied to ascertain the effect of mixture impact velocities on separation performance. Additionally, coated fabric possesses self-cleaning feature, which makes it viable for muddy oil-water separation. Prepared coated fabric holds tremendous potential for industrial use and oil-water separation in extreme conditions.
本研究旨在通过应用超疏水棉织物来解决水污染中的油类问题。通过使用二氧化锆（ZrO）纳米颗粒和十六烷基三甲氧基硅烷的溶液浸渍技术，制备了水接触角为158±2°的超疏水棉织物。采用Box-Behnken设计方法对浓度、固化温度和浸渍时间等合成参数进行了优化。该涂层织物具有机械耐久性、化学弹性和热稳定性，能够以99.9%的效率分离不同的油水混合物。该涂层织物在酸性和中性介质中还可重复使用50次分离循环。此外，还研究了油水混合物的液滴动态行为，以确定混合物冲击速度对分离性能的影响。此外，涂层织物具有自清洁功能，这使其适用于含泥的油水分离。制备的涂层织物在工业应用和极端条件下的油水分离方面具有巨大潜力。
