PMID- 37514432 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230731 IS - 2073-4360 (Electronic) IS - 2073-4360 (Linking) VI - 15 IP - 14 DP - 2023 Jul 14 TI - Preparation of Superhydrophilic/Underwater Superoleophobic and Superhydrophobic Stainless Steel Meshes Used for Oil/Water Separation. LID - 10.3390/polym15143042 [doi] LID - 3042 AB - Robust membrane materials with high efficiency have attracted extensive attention in oil/water separation. In this work, carbon particles via candle combustion were firstly adsorbed on the surface of stainless steel meshes (SSMs), which formed a thin hydrophobic coating, and a rough structure was then constructed through chemical vapor deposition and high temperature calcination, with the resultant SSM surface wrapped with uniform silica coating possessing the characteristic of superoleophobicity underwater. Scanning electron microscope (SEM), energy dispersive spectroscopy (EDS), and X-ray powder diffraction (XRD) were used to characterize the modified SSMs. The prepared SSMs were superhydrophilic in air, and they had superoleophobicity underwater (157.4 degrees ). The separation efficiency of five oil/water mixtures was above 98.8%, and the separation flux was 46,300 L.m(-2).h(-1). After it was immersed in 1 mol/L NaOH, 1 mol/L HCl and 3.5 wt% NaCl for 24 h, respectively, the efficiency was still above 97.3%. Further immersion in the solution of dopamine and octadecylamine resulted in the transformation of superhydrophililc/superoleophobicity-underwater SSMs to superhydrophobic SSMs, and the resultant SSMs with reverse surface wettability was also used for the oil/water separation with good separation efficiency and separation flux. FAU - Zhang, Yu-Ping AU - Zhang YP AD - College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China. AD - College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China. FAU - Wang, Ya-Ning AU - Wang YN AD - College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China. FAU - Du, Hong-Li AU - Du HL AD - College of Chemistry and Materials Engineering, Hunan University of Arts and Science, Changde 415000, China. FAU - Qv, Ling-Bo AU - Qv LB AD - College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China. FAU - Chen, Jun AU - Chen J AD - College of Ecology and Environment, Zhengzhou University, Zhengzhou 450001, China. AD - College of Chemistry and Chemical Engineering, Henan Institute of Science and Technology, Xinxiang 453003, China. LA - eng GR - 22074029/the National Nature Science Foundation of China/ PT - Journal Article DEP - 20230714 PL - Switzerland TA - Polymers (Basel) JT - Polymers JID - 101545357 PMC - PMC10383247 OTO - NOTNLM OT - chemical vapor deposition OT - oil/water separation OT - stainless steel mesh OT - superhydrophobicity OT - underwater superoleophobicity COIS- The authors declare no conflict of interest. EDAT- 2023/07/29 11:51 MHDA- 2023/07/29 11:52 PMCR- 2023/07/14 CRDT- 2023/07/29 01:41 PHST- 2023/05/28 00:00 [received] PHST- 2023/07/05 00:00 [revised] PHST- 2023/07/12 00:00 [accepted] PHST- 2023/07/29 11:52 [medline] PHST- 2023/07/29 11:51 [pubmed] PHST- 2023/07/29 01:41 [entrez] PHST- 2023/07/14 00:00 [pmc-release] AID - polym15143042 [pii] AID - polymers-15-03042 [pii] AID - 10.3390/polym15143042 [doi] PST - epublish SO - Polymers (Basel). 2023 Jul 14;15(14):3042. doi: 10.3390/polym15143042.