Simple anodic oxidation method for the preparation of superhydrophobic stainless-steel mesh for oil-water separation

Song, Yuanji; Yu, Sirong; Wang, Kang; Li, Wei; Gong, Pu; Li, Huaisen; Zhang, Mingshan; Sun, Daijun; Yang, Xiaofeng

doi:10.1016/j.colsurfa.2022.130855

Cited by 11 publications

(3 citation statements)

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“…used anodic oxidation of stainless steel mesh using voltage from 10 to 40 V to fabricate a superhydrophobic mesh. The separation efficiency of different oils was more than 95% 1 . Negri et al .…”

Section: Introductionmentioning

confidence: 94%

“…For example, Yu et al used anodic oxidation of stainless steel mesh using voltage from 10 to 40 V to fabricate a superhydrophobic mesh. The separation efficiency of different oils was more than 95% 1 . Negri et al used an electrochemical process using an inert electrolyte that contains stearic acid for the fabrication of superhydrophobic brass and bronze meshes.…”

mentioning

confidence: 94%

“…Numerous industries, including petrochemical, textile, metallurgical, food, and catering, generate oily wastewater. The improper discharge of this oily wastewater impacts the environment and human health adversely 1 . Several methods are employed for oil and water separation, such as gravity settling 2 , centrifugation 3 , gas flotation 4 , adsorption 5 , and membrane filtration 6 , 7 .…”

Section: Introductionmentioning

confidence: 99%

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Facile and scalable preparation of superhydrophobic brass mesh for efficient and rapid separation of oil and water

Asjadi,

Yaghoobi

2024

Sci Rep

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A facile method for preparing superhydrophobic brass mesh is proposed based on electrochemical etching and surface modification. The impact of processing time and the electric potential of the electrochemical etching were studied on the contact angle (CA) of the mesh. The samples were examined using scanning electron microscopy, Energy-dispersive X-ray spectroscopy analysis, X-ray diffraction, and Fourier-transform infrared spectroscopy. The electrochemical etching process caused the decrement of wires’ thickness and imposed roughness. Results showed more dissolution of zinc than copper under 3 V of the electric potential and the processing times of 3 and 6 min. The optimum condition of electrochemical etching was obtained under the electric voltage of 3 V for a processing time of 6 min, which led to a CA of 155.5 ± 3.2°. The thickness of the mesh wires decreased by 17.7% due to electrochemical etching in this sample. This sample also showed low adhesion for a water drop. The efficiency of oil/water separation was above 95 for the xylene and ethyl acetate in a batch system. The effect of the flow rate of the oil–water mixture on separation efficiency was also examined. The optimum flow rate was 0.8 ml s−1 with a high separation efficiency of 96.8% for xylene/oil separation.

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Section: Introductionmentioning

confidence: 94%

mentioning

confidence: 94%