Superoleophilic cotton fabric decorated with hydrophobic Zn/Zr MOF nanoflowers for efficient self-cleaning, UV-blocking, and oil–water separation

Ahmad，Naseer1; Rasheed，Sufian1; Ali，Tooba1; Azhar，Irfan2; Ahmad，Waqas1; Hussain，Dilshad1

2024-04-01

10.1016/j.cej.2024.149991

Chemical Engineering Journal   影响因子和分区

1385-8947

Oil spills significantly threaten aquatic life, human health and the environment, necessitating oil–water separation methods. To address these environmental concerns, a hydrophobic Zn/Zr bimetallic metal–organic framework nanoflowers (H-Zn/Zr MOF-NF) functionalized superhydrophobic cotton fabric is developed for oil–water separation. Hydrophilic amine-terminated bimetallic Zn/Zr MOF with distinctive flower-like morphology is hydrothermally synthesized and functionalized with myristic acid. Finally, cotton fabric is coated with a hydrophobic emulsion of H-Zn/Zr MOF-NF and polydimethylsiloxane (PDMS) via dip-coating, enhancing surface roughness and lowering surface energy. The developed superhydrophobic cotton fabric shows exceptional water-repellency with a water contact angle (WCA) and water sliding angle (WSA) of 161° and 4°, respectively. The Zn/Zr MOF-NF coated superhydrophobic cotton fabric with a porous structure efficiently separates diesel oil, n-hexane, toluene, and chloroform from water mixtures with over 98% separation efficiency and high flux. The coated cotton fabric demonstrates remarkable reusability, upholding superior separation efficiency over 95% and retaining WCA at 156° after 12 cycles with excellent physical and chemical stability. The modified cotton fabric also exhibits enhanced UV-blocking properties and self-cleaning characteristics. The designed emulsion is also applied to other surfaces, such as sponge, wood, and filter paper, demonstrating promising superhydrophobicity. This study opens new possibilities for manufacturing multifunctional superhydrophobic surfaces for oil–water separation applications using bimetallic hydrophobic MOFs.

Functional textiles H-Zn/Zr MOF nanoflowers Oil-water separation Superhydrophobicity Surface modifications

SCI ; EI

英语

其他

ENGINEERING

2-s2.0-85186568609

Scopus

1.HEJ Research Institute of Chemistry,International Center for Chemical and Biological Sciences,University of Karachi,Karachi,75270,Pakistan
2.Department of Chemistry and Research Center for Chemical Biology and Omics Analysis,College of Science,Southern University of Science and Technology,Shenzhen,518055,China

Ahmad，Naseer,Rasheed，Sufian,Ali，Tooba,等. Superoleophilic cotton fabric decorated with hydrophobic Zn/Zr MOF nanoflowers for efficient self-cleaning, UV-blocking, and oil–water separation[J]. Chemical Engineering Journal,2024,485.

Ahmad，Naseer,Rasheed，Sufian,Ali，Tooba,Azhar，Irfan,Ahmad，Waqas,&Hussain，Dilshad.(2024).Superoleophilic cotton fabric decorated with hydrophobic Zn/Zr MOF nanoflowers for efficient self-cleaning, UV-blocking, and oil–water separation.Chemical Engineering Journal,485.

Ahmad，Naseer,et al."Superoleophilic cotton fabric decorated with hydrophobic Zn/Zr MOF nanoflowers for efficient self-cleaning, UV-blocking, and oil–water separation".Chemical Engineering Journal 485(2024).