Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation

The preparation of superhydrophobic (SH) surface on stainless steel by chemical etching method is challenging due to the good corrosion resistance of the material. In this work, SH surface with water contact angle (WCA) as high as 163.21° was accomplished on 304 stainless steel surface by a rapid ul...

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Autores principales:	Zongbo Zhang, Chunling Xu, Wengang Liu, Kai Wang, Yunlong Rao, Chen Jiang, Dawei Li, Yu Zhang, Xin Jiang, Xintong Chen, Changbin Xu
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Stainless steel Ultrasound Superhydrophobic Ultrasonic cavitation Ultrasonic vibration Chemistry QD1-999 Acoustics. Sound QC221-246
Acceso en línea:	https://doaj.org/article/73f41c4809704ad9b286823b2dd6ce6f
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spelling	oai:doaj.org-article:73f41c4809704ad9b286823b2dd6ce6f2021-11-30T04:14:32ZUltrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation1350-417710.1016/j.ultsonch.2021.105848https://doaj.org/article/73f41c4809704ad9b286823b2dd6ce6f2021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S1350417721003904https://doaj.org/toc/1350-4177The preparation of superhydrophobic (SH) surface on stainless steel by chemical etching method is challenging due to the good corrosion resistance of the material. In this work, SH surface with water contact angle (WCA) as high as 163.21° was accomplished on 304 stainless steel surface by a rapid ultrasonic-assisted chemical etching method within 7 min and a low-cost fluorine-free modification treatment. The mechanism of ultrasonic field on the etching process was explored by detecting the cavitation and oscillation energy in the reactor. It is the first time to found that the ultrasonic cavitation effect enhanced the etching process by both chemical and physical facilitation resulting in hierarchical lamellar micro-structures, “mountain-like” micro-structure clusters and “coral-reef-like” nano-scale structures on the surface. With the ultrasonic power increasing, the ultrasonic cavitation effect not only enhanced the superhydrophobicity of sample surface, but also improved the uniformity of surface wettability. The samples also showed excellent performance of oil/water separation for various organics (all separation efficiencies up to 96%) and remarkable mechanical stability.Zongbo ZhangChunling XuWengang LiuKai WangYunlong RaoChen JiangDawei LiYu ZhangXin JiangXintong ChenChangbin XuElsevierarticleStainless steelUltrasoundSuperhydrophobicUltrasonic cavitationUltrasonic vibrationChemistryQD1-999Acoustics. SoundQC221-246ENUltrasonics Sonochemistry, Vol 81, Iss , Pp 105848- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Stainless steel Ultrasound Superhydrophobic Ultrasonic cavitation Ultrasonic vibration Chemistry QD1-999 Acoustics. Sound QC221-246
spellingShingle	Stainless steel Ultrasound Superhydrophobic Ultrasonic cavitation Ultrasonic vibration Chemistry QD1-999 Acoustics. Sound QC221-246 Zongbo Zhang Chunling Xu Wengang Liu Kai Wang Yunlong Rao Chen Jiang Dawei Li Yu Zhang Xin Jiang Xintong Chen Changbin Xu Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
description	The preparation of superhydrophobic (SH) surface on stainless steel by chemical etching method is challenging due to the good corrosion resistance of the material. In this work, SH surface with water contact angle (WCA) as high as 163.21° was accomplished on 304 stainless steel surface by a rapid ultrasonic-assisted chemical etching method within 7 min and a low-cost fluorine-free modification treatment. The mechanism of ultrasonic field on the etching process was explored by detecting the cavitation and oscillation energy in the reactor. It is the first time to found that the ultrasonic cavitation effect enhanced the etching process by both chemical and physical facilitation resulting in hierarchical lamellar micro-structures, “mountain-like” micro-structure clusters and “coral-reef-like” nano-scale structures on the surface. With the ultrasonic power increasing, the ultrasonic cavitation effect not only enhanced the superhydrophobicity of sample surface, but also improved the uniformity of surface wettability. The samples also showed excellent performance of oil/water separation for various organics (all separation efficiencies up to 96%) and remarkable mechanical stability.
format	article
author	Zongbo Zhang Chunling Xu Wengang Liu Kai Wang Yunlong Rao Chen Jiang Dawei Li Yu Zhang Xin Jiang Xintong Chen Changbin Xu
author_facet	Zongbo Zhang Chunling Xu Wengang Liu Kai Wang Yunlong Rao Chen Jiang Dawei Li Yu Zhang Xin Jiang Xintong Chen Changbin Xu
author_sort	Zongbo Zhang
title	Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
title_short	Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
title_full	Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
title_fullStr	Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
title_full_unstemmed	Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
title_sort	ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/73f41c4809704ad9b286823b2dd6ce6f
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Ultrasonic assisted rapid preparation of superhydrophobic stainless steel surface and its application in oil/water separation

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