APPLIED SURFACE SCIENCE
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2018
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IF 4.439
Hu Luo,Shaohui Yin,Shuai Huang,Fengjun Chen,Qingchun Tang,Xiaojie Li
Zinc and its alloys are valuable crucial materials applied in the fields of automobile, ship manufacturing and construction industries. However, their application is limited due to poor performance on water-resistance, condensation and anti-icing property. Slippery liquid-infused porous surface (SLIPS) has been widely used owing to excellent water-repellent, condensation and anti-icing properties. In this work, a SLIPS was fabricated based on zinc substrate by using electrochemical etching, low surface energy modification and lubricant infusion, successively. According to the SEM morphologies and EDS images, it could be confirmed that the rough porous surface structure, low surface energy modification and infused lubricants are key factors accounting for the excellent anti-wetting property of fabricated slippery Zn surface. The experimental results showed that the SLIPS on zinc substrate exhibited outstanding water-repellent performance at a wide range of temperature and drop impact velocity. Moreover, its anti-wetting ability can be sustained even under the impacts of droplets or the continuous water jet. Owing to its dropwise condensation strategy, the SLIPS shows reasonable water collection efficiency, which exceeds 60 mg/(cm 2 ·h) at relative humidity of 90%. The excellent anti-icing property is demonstrated by the simulated ice rain test and deicing force test. And the results showed that only tiny residue ice left on the SLIPS and the deicing force was 2–3 times smaller than ordinary surface. The prepared SLIPS is expected to be an adaptable and efficient method for enhancing the water-repellent, condensation and anti-icing properties of zinc substrate, and may expand the application in energy-efficient fluid handing & transportation, medicine and anti-fouling operating in low temperature environment.
研究领域:
材料科学
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表面工程
✓ 已验证
产品关联
DOI
高影响因子
CHINESE JOURNAL OF ANALYTICAL CHEMISTRY
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2021
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IF 1.134
Xiao-Xuan ZHANG,Wu-Bo CHU,Nan JIANG,He LI
Serum albumin is the most abundant protein in mammalian plasma and is often used as a model to understand the adhesion behavior of proteins on surfaces. Attenuated total reflection-Fourier transform infrared spectroscopy (ATR-FTIR) is used to non-destructively and dynamically detect the chemical change information between the protein and the surface during the adhesion process, which is especially suitable for in-situ measurement of samples in water. Therefore, the adhesion of bovine serum albumin (BSA) on the surface in H 2 O and D 2 O is investigated by ATR-FTIR technology, which effectively avoids the interference of the characteristic peak of deformation vibration of liquid H 2 O (1645 cm −1 ) on the amide I band of BSA. Sodium alginate, a polysaccharide widely present in the ocean, is introduced into the BSA solution to explore the changes in the adhesion process of proteins on the surface of ZnSe, and polarized ATR-FTIR spectra are also collected to study the adhesion orientation of BSA. Sodium alginate presents a negative effect on the adhesion of BSA on the surface and there is no specific orientation of BSA on the surface.
研究领域:
生物化学
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材料科学
✓ 已验证
产品关联
DOI
高影响因子
LANGMUIR
·
2024
·
IF 3.7
Xichang Shan,Zhongli Zou,Zhijuan Mi,Kunmin Tong,Chunping Hou
This work presents the development of a novel nanotube (S12HNTS-T-P) that is coated with polyethylenimine (PEI) and internally loaded with a corrosion inhibitor (thiourea) utilizing vacuum negative pressure and electrostatic adsorption methods. A smart self-healing coating with self-repairing properties was fabricated on the basis of S12HNTS-T-P. Bis[3-(triethoxysilyl)propyl]tetrasulfide (Si69), a widely used organosilane coupling agent, provides stability and corrosion resistance. The integration of S12HNTS-T-P into Si69 significantly enhances the coating’s corrosion resistance and self-healing capabilities. To further evaluate the performance of the smart self-healing coating, a control group comprising Si69 coatings without S12HNTS-T-P was established. Electrochemical tests revealed that the coating with 3 wt % S12HNTS-T-P exhibited markedly superior corrosion resistance compared to those with 0, 1, and 5 wt % S12HNTS-T-P. In comparison to the control group, the coating with 3 wt % S12HNTS-T-P demonstrated a 99.4% increase in corrosion inhibition efficiency after 72 h of immersion in a 3.5 wt % NaCl solution. Scanning electron microscopy (SEM) and immersion tests further corroborated that the smart self-healing coating exhibited self-repairing behavior when subjected to external scratching stimuli. Simulation results indicated that thiourea released from the nanotubes can adsorb and form a protective film at the scratch sites, effectively repairing the coating’s defects. The exceptional corrosion resistance and high healing rates of the smart self-healing coating suggest that S12HNTS-T-P plays a pivotal role in enhancing the corrosion protection of zinc.
研究领域:
材料科学
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腐蚀与防护
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纳米技术
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Surfaces and Interfaces
·
2024
·
IF 5.7
Yitong Pang,Fengyi Wang,Guoying Mei,Ao Fu,Ke Pei
Water shortage has emerged as a significant worldwide issue as a result of the frequency of extreme weather events like storms, droughts and climate warming. One possible way to address the world's freshwater deficit is to effectively extract freshwater from water mist. In this work, a series of biomimetic superhydrophobic-hydrophilic patterned zinc materials for mist collection was designed via mold pressing, anodic oxidation and laser-scanning methods. The fog collector is able to capture droplets efficiently and transport water quickly due to its unique array structure. The patterned superhydrophobic-hydrophilic zinc surface contained the highest water mist collection efficiency of about 10.89 g·m −2 ·s −1 , which is 75 % higher than the original zinc sheet. The surface structure, chemical composition of the superwetting zinc materials were investigated by FT-IR, XPS, FESEM and EDS, respectively. In addition, the mechanical robustness, weather ability and enhancing mechanism of the prepared superwetting zinc surfaces were investigated via UV exposure, multiple thermal/cold cycles and sandpaper abrasion treatment. The good collecting efficiency from water mist of the obtained functional surfaces may provide ideas for the future design of mist collection materials.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）