Acid wet blasting method for fabricating superhydrophobic aluminum surface with micro-nano composite structures

Zhai, Ying; Liu, Qiao; Mohamed, Mohamed Elshahat; Liu, Feng; Lv, Shuwei; Zhang, Xinming; Yang, Xiaodong

doi:10.1007/s00339-024-07633-1

Appl. Phys. A

2024

DOI: 10.1007/s00339-024-07633-1

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Acid wet blasting method for fabricating superhydrophobic aluminum surface with micro-nano composite structures

Ying Zhai,

Qiao Liu,

Mohamed Elshahat Mohamed

et al.

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Cited by 2 publications

References 53 publications

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SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance

Zhong,

Liu,

Yang

et al. 2024

Surface Engineering

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The icing phenomenon has become a safety hazard for the normal operation of equipment. In this work, we report a strategy for simply obtaining photothermal anti-icing coatings by spraying acrylic resin, polydimethylsiloxane and polydopamine modified SiO2 particles on a steel plate substrate. The prepared icephobic AR/PDMS/SiO2@PDA composite coating not only has excellent superhydrophobicity (WCA = 162°). It also shows good anti- and de-icing performances. The superhydrophobic surface was able to delay freezing for 614 s at −20°C, and the ice adhesion of its surface was 54 kPa. In addition, PDA-modified SiO2 particles endow the coating with photothermal properties. Under the irradiation of simulated sunlight, the photothermal coating rapidly reached 61°C within 3 min, and the ice droplets completely melted in 155 s. Besides, it's able to withstand a wide range of chemical attacks and mechanical impacts. After 15 icing-de-icing cycles and 40 sandpaper abrasions cycles test, the prepared coatings can still maintain remarkable ice-removal performance, demonstrating excellent mechanical robustness and stability in harsh environments.

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SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance

Zhong,

Liu,

Yang

et al. 2024

Surface Engineering

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Biochar-Bio-Cu composite superhydrophobic membrane for efficient oil-water separation

Beagan,

Yang,

Mohamed

2024

Surface Innovations

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This manuscript presents the development of a superhydrophobic textile fabric (SF) for effective oil-water (O/W) separation. A biochar was synthesized by pyrolysis of banana leaves. The bio-Cu nanoparticles (bio-Cu NPs) were synthesized from grape seed extract. The biochar and bio-Cu NPs were used to enhance the surface roughness of the textile fabric. The low-cost, eco-friendly stearic acid was used as a low surface energy material. The SF achieves a water sliding angle of 1 degree and apparent contact angle of 159 degrees, indicating its superhydrophobic nature. The absorption capacity towards silicone oil (S.O), toluene (Tol.), and crude oil (C.O) is measured at 102.2 g/g, 98.5 g/g, and 91.0 g/g, respectively, with minimal decrease after ten usage cycles. The SF exhibits outstanding O/W separation efficiencies for C.O (99.6%), Tol. (98.9%), and S.O (97.5%) over ten cycles. Mechanical stability assessments reveal superhydrophobicity retention till a length of abrasion equal to 650 mm. Chemical stability investigations demonstrate SFs resilience across a pH range of 1-13 over two hours of immersion. Furthermore, the SF shows a good flux rate towards the used oils. These findings establish a promising advancement in environmental remediation and O/W separation.

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Acid wet blasting method for fabricating superhydrophobic aluminum surface with micro-nano composite structures

Cited by 2 publications

References 53 publications

SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance

SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance

Biochar-Bio-Cu composite superhydrophobic membrane for efficient oil-water separation

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About

Acid wet blasting method for fabricating superhydrophobic aluminum surface with micro-nano composite structures

Cited by 2 publications

References 53 publications

SiO2/polydopamine photothermal superhydrophobic coating with good anti-icing performance

SiO2/polydopamine photothermal superhydrophobic coating with good anti-icing performance

Biochar-Bio-Cu composite superhydrophobic membrane for efficient oil-water separation

Contact Info

Product

Resources

About

SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance

SiO₂/polydopamine photothermal superhydrophobic coating with good anti-icing performance