Bioinspired Graphene Oxide–Magnetite Nanocomposite Coatings as Protective Superhydrophobic Antifouling Surfaces

Langmuir, Год журнала: 2023, Номер 39(6), С. 2333 - 2346

Опубликована: Янв. 31, 2023

Antifouling (AF) nanocoatings made of polydimethylsiloxane (PDMS) are more cost-efficient and eco-friendly substitutes for the already outlawed tributyltin-based coatings. Here, a catalytic hydrosilation approach was used to construct design inspired by composite mosquito eyes from non-toxic PDMS nanocomposites filled with graphene oxide (GO) nanosheets decorated magnetite nanospheres (GO-Fe3O4 nanospheres). Various GO-Fe3O4 hybrid nanofillers were dispersed into resin through solution casting method evaluate structure-property relationship. A simple coprecipitation procedure fabricate an average diameter 30-50 nm, single crystal structure, predominant (311) lattice plane. The uniform bioinspired superhydrophobic PDMS/GO-Fe3O4 nanocomposite surface produced had micro-/nano-roughness, low surface-free energy (SFE), high fouling release (FR) efficiency. It exhibited several advantages including simplicity, ease large-area fabrication, simultaneous offering dual micro-/nano-scale structures simply via one-step process wide variety materials. superhydrophobicity, SFE, rough topology have been studied as properties unfilled silicone nanocomposites. coatings' physical, mechanical, anticorrosive features also taken account. Several microorganisms employed examine resistance coated specimens 1 month. Good dispersion fillers in coating until wt % achieved highest water contact angle (158° ± 2°), lowest SFE (12.06 mN/m), improved bulk mechanical anticorrosion properties. well-distributed (1 nanofillers) nanocoating showed least biodegradability against all tested [Kocuria rhizophila (2.047%), Pseudomonas aeruginosa (1.961%), Candida albicans (1.924%)]. We successfully developed non-toxic, low-cost, economical nanostructured FR coatings long-term ship hull This study may expand applications bio-inspired functional materials because multiple AF, durability hydrophobicity both important industrial applications.

Язык: Английский

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The antifouling mechanism and application of bio-inspired superwetting surfaces with effective antifouling performance

Advances in Colloid and Interface Science, Год журнала: 2024, Номер 325, С. 103097 - 103097

Опубликована: Фев. 2, 2024

Язык: Английский

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Hierarchical biocide-free silicone/graphene-silicon carbide nanocomposite coatings for marine antifouling and superhydrophobicity of ship hulls

Chemical Engineering Science, Год журнала: 2024, Номер 291, С. 119929 - 119929

Опубликована: Фев. 25, 2024

Язык: Английский

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Biofouling dynamics and antifouling innovations: Transitioning from traditional biocides to nanotechnological interventions

Environmental Research, Год журнала: 2025, Номер unknown, С. 120943 - 120943

Опубликована: Янв. 1, 2025

Язык: Английский

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Photoinitiated Thiol–Ene Click Reaction for Preparation of Highly Adhesive and Mechanically Stable Silicone Coatings for Marine Antifouling and Anticorrosion

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Янв. 21, 2025

Marine biofouling and corrosion have become the main problems affecting development of marine industry. Silicone-based coatings been widely used for antifouling anticorrosion due to their low surface energy. However, poor adhesion mechanical stability these materials limit application in complex environments. In this work, we presented a coating named POSS-DMA@PDMS-TCM through photoinitiated thiol-ene click reaction combined with (mercaptopropyl) methylsiloxane dimethylsiloxane (PDMS-SH), dopamine methacrylamide (DMA), sulfhydryl-functionalized organosiloxanes (POSS-(SH)8), N-(2,4,6-trichlorophenyl) maleimide (TCM). The exhibited strong bonding ability both air (2.17 MPa) underwater (2.11 when DMA content was 3 wt %. high antibacterial (98.1% Staphylococcus aureus 99.5% Escherichia coli) antidiatom (94.5%) properties also confirmed. Moreover, show excellent abilities 120-day field tests, reducing fouling by 65.5% comparison blank group. displayed superior performance Ecorr values -0.055 V, Icorr 7.67 × 10-6 , Rp 3.10 105 Ω Cu, which benefited from chelating effect liquid repellency. This study provides novel strategy high-quality coatings.

Язык: Английский

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Plate heat exchangers fouling mitigation effects in heating of water solutions: A review

Renewable and Sustainable Energy Reviews, Год журнала: 2023, Номер 179, С. 113283 - 113283

Опубликована: Апрель 3, 2023

Язык: Английский

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Hydrogel-Anchored Fe-Based Amorphous Coatings with Integrated Antifouling and Anticorrosion Functionality

ACS Applied Materials & Interfaces, Год журнала: 2023, Номер 15(10), С. 13644 - 13655

Опубликована: Март 2, 2023

Biofouling and corrosion of underwater equipment induced by marine organisms have become major issues in the industry. The superior resistance Fe-based amorphous coatings makes them suitable for applications; however, they a poor antifouling ability. In this work, hydrogel-anchored (HAM) coating with satisfactory anticorrosion performance is designed, utilizing an interfacial engineering strategy involving micropatterning, surface hydroxylation, dopamine intermediate layer to increase adhesion strength between hydrogel coating. as-obtained HAM exhibits exceptional properties, achieving 99.8% algae, 100% mussels, excellent biocorrosion against Pseudomonas aeruginosa. Antifouling was also explored conducting field test East China Sea, no signs fouling are observed after 1 month immersion. It revealed that outstanding properties stem from killing-resisting-camouflaging trinity resists organism attachment across different length scales, originates remarkable barrier Cl- ion diffusion microbe-induced biocorrosion. This work presents novel methodology designing protective properties.

Язык: Английский

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Enhanced anti-corrosive capability of waterborne epoxy coating by ATT exfoliated boron nitride nanosheets composite fillers

Progress in Organic Coatings, Год журнала: 2023, Номер 186, С. 108089 - 108089

Опубликована: Ноя. 21, 2023

Язык: Английский

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Design of an anticorrosion/bactericidal dual functional organic coating based on the slippery liquid-infused porous surface

Applied Surface Science, Год журнала: 2023, Номер 639, С. 158214 - 158214

Опубликована: Авг. 9, 2023

Язык: Английский

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Polydopamine wrapped polyaniline nanosheets: Synthesis and anticorrosion application for waterborne epoxy coatings

Journal of Material Science and Technology, Год журнала: 2023, Номер 176, С. 155 - 166

Опубликована: Сен. 7, 2023

Язык: Английский

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