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| 1 | Hybrid Laser Ablation and Chemical Modification for Fast Fabrication of Bio-inspired Super-hydrophobic Surface with Excellent Self-cleaning,Stability and Corrosion Resistance显示文摘Although laser ablation is considered as a facile technique to fabricate bio-inspired super-hydrophobic surfaces,the issue is that the initial laser treated metallic surfaces show super-hydrophilic property.It will take a long period to reach super-hydrophobic state under ambient air.It is reported that these super-hydrophobic surfaces could be easily damaged by thermal heating effect or interaction with other liquids,causing uncontrolled loss of super-hydrophobicity.In this study,a stable super-hydrophobic aluminum surface was rapidly fab-ricated via the hybrid laser ablation and surface chemical modification of(heptadecafluoro-1,1,2,2-tetradecyl)triethoxysilane(AC-FAS).Surface morphology and chemistry were systematically investigated to explore the generation mechanism of super-hydrophobicity.The water contact angle of the treated surfaces can reach up to 160.6°±1.5°with rolling angle of 3.0°±1.0°,exhibiting perfect self-cleaning capability,long-term stability,and excellent chemical stability in acidic as well as alkaline solutions.The potentiodynamic polarization tests implied that the super-hydrophobic surfaces showed better anti-corrosion performance.This hybrid laser ablation and surface chemical modification are very time-saving and low-cost,which offers a rapid way for quantity production of super-hydrophobic surface on aluminum material. | Zhen Yang Xianping Liu Yanling Tian | 2019 | Journal of Bionic Engineering2019,16,1: | 15 |
| 2 | Magnetically Driven Superhydrophobic Polyurethane Sponge for High Efficiency Oil/Water Mixtures Separation显示文摘Magnetically driven super-hydrophobic materials were prepared by Fe3O4 nanoparticles and stearic acid,which were deposited on the surface of polyurethane sponges.The presence of the Fe3O4 nanoparticles makes the sponge have the magnetic,and the micro-nano hierarchical structure and hydrophobic functional groups lead to the sponge have excellent superhydrophobicity.The as-prepared sponge exhibited excellent absorption capacities for various oils and organic solvents ranging from 23.8 times to 86.7 times of its own weight.Moreover,the oil separation capacities still keep a high value after 50 cycles of squeezing the saturated absorbed as-prepared sponge.All of these satisfactory properties make the as-prepared sponge as a candidate of ideal absorbents for oily industrial wastewater and oil spills in oceans. | Xuemei Zhang Feng Fu Xiaoming Gao Xiufang Hou | 2019 | Journal of Bionic Engineering2019,16,1: | 6 |
| 3 | 超疏水铜网的制备及其在油水分离中的应用显示文摘将铜网浸渍于一定浓度的氯化铜和硫代硫酸钠的混合液中反应一定时间,从而在铜网表面构筑了微米级颗粒粗糙表面,并用一定浓度的正十二硫醇对其进行疏水修饰,制备出了具有超疏水特性的铜网。并探讨了浸渍温度、浸渍时间、浸渍液配比、修饰浓度、修饰时间对铜网疏水性的影响。在浸渍温度50℃,浸渍时间4h,浸渍液配比1∶1,修饰浓度10mmol/L,修饰时间10min的条件下得到了疏水性最好的铜网。用扫描电子显微镜、X射线粉末衍射仪、接触角测量仪对所制备的铜网表面形貌、化学组成、疏水性能进行了表征,并用4种油水混合物探究了所制备铜网的分离效果。结果表明,所制备的铜网具有超疏水性,接触角可达154°,并且成功应用于不同油水混合物的分离,分离效率均在96%以上。 | 唐娜 王洋 项军 董思成 | 2019 | 功能材料2019,50,2: | 5 |
| 4 | 磁性超疏水聚氨酯海绵的制备及其性能研究显示文摘随着世界工业化进程的不断推进,各个产业含油污水排放量日益增加,严重破坏生态系统。近年来,由于超疏水材料特殊的表面效应,将其应用于油水混合物的分离领域已成为研究的热点。采用浸渍法对聚氨酯海绵表面进行疏水改性,通过对四种主要因素考察,优选出最佳制备工艺:将0.1g纳米Fe3O4超声分散于海绵表面,再用4%(wt)的硬脂酸溶液对其进行表面改性18h,经90℃热处理6h后即可得到磁性超疏水海绵。该材料水接触角高达158°,且可通过磁铁进行回收和驱动,在油水混合物的连续分离中表现出优异的性能,对开发新型油水分离材料具有重要的研究意义和实用价值。 | 张雪梅 王航 郝彬彬 王广 | 2019 | 当代化工2019,48,8: | 5 |
| 5 | 工程仿生领域猪笼草叶笼研究现状及发展趋势显示文摘猪笼草叶笼能够捕集昆虫并将其消化成生长所需的营养元素,依据宏/微观形貌结构差异可划分为盖子、口缘、滑移区与消化区等区域。口缘密布楔形盲孔的辐射状沟脊结构可使液膜产生定向移动,滑移区形貌结构呈现抑制昆虫附着、低黏附超疏水等特性,受到学者普遍关注并逐步成为研究热点。从口缘与滑移区在工程仿生领域的研究现状入手,介绍其形貌结构特征与功能特性,重点关注以其为仿生原型制备液膜定向传输、昆虫滑移捕集、超疏水等功能表面的研究进展,并对未来需要关注的研究内容进行分析,从而进一步加深人们对叶笼形貌结构与功能特性的认识,为功能表面仿生研制提供新思路。 | 王立新 吴树静 李山山 | 2018 | 河北科技大学学报2018,39,3: | 4 |
| 6 | Enhancing Nucleation and Detachment of Condensed Drops by Hybrid Wetting Surfaces显示文摘 | Xikui Wang Jing Zhang Jia Zeng Shanlin Wang Xinquan Yu Youfa Zhang | 2018 | Journal of Bionic Engineering2018,15,3: | 2 |
| 7 | 超疏水/超亲油不锈钢网的制备及其油水分离性能研究显示文摘用二甲基二乙氧基硅烷改性的纳米二氧化硅(SiO_(2))颗粒和聚四氟乙烯(PTFE)溶液,通过喷涂的方法在不锈钢网上制备出具有超疏水和超亲油性能的SiO_(2)@PTFE涂层,其表面水滴接触角为164.7°,滚动角为6.5°。分别采用磨损和超声震荡的方法对SiO_(2)@PTFE超疏水/超亲油不锈钢网的稳定性进行了表征。利用自制装置对几种不同的油水混合液进行分离测试。结果表明,该超疏水/超亲油不锈钢网具有优异的油水分离性能,油水分离效率超过96%,且可以多次重复使用。 | 李冉 雷胜 李文 | 2022 | 精细石油化工2022,39,2: | 2 |
| 8 | Wetting Transition from Hydrophilic to Superhydrophobic over Dendrite Copper Leaves Grown on Steel Meshes显示文摘With the development of water purification technologies,the usage of superhydrophobic meshes is increased but the fabrication of durable and cost effective superhydrophobic meshes is still challenging.Here,the formation of hierarchical copper fractals on stainless steel meshes and their superhydrophobicity without any physical or chemical modification were studied.In addition,the improvement of superhydrophobicity of surfaces during storing in a glass bottle for a long time(>one year)is reported.The structures were prepared using electrodeposition method applying cyclic voltammetry and square pulse deposition approaches on stainless steel meshes with 50μm,100μm and 200μm pore sizes.The prepared layers are a composition of copper with varying amounts of cuprite(Cu20)depending on deposition method and mesh pore size.As-prepared cyclic voltammetry layer on 100μm mesh showed the parahydrophobicity with the contact angle of 154°but a large sliding angle.The one-year stored samples in the glass bottle showed superhydrophobicity with the contact angles larger than 150°and sliding angles in the range of 4°-20°.The observed improvement of superhydrophobicity is a great success in the realm of industrial water purification,while most other proposed samples by the others have problems related to the durability of superhydrophobicity. | Raziyeh Akbari Guilhem Godeau Mohammadreza Mohammadizadeh Frederic Guittard Thierry Darmanin | 2019 | Journal of Bionic Engineering2019,16,4: | 1 |
| 9 | Dodecyl Mercaptan Functionalized Copper Mesh for Water Repellence and Oil-water Separation显示文摘Reckless discharge of industrial wastewater and domestic sewage as well as frequent leakage of crude oil have caused serious environmental problems and posed severe threat to human survival.Various nature inspired superhy-drophobic surfaces have been successfully applied in oily water remediation.However,further improvements are still urgently needed for practical application in terms of facile synthesis process and long-term durability towards harsh environment.Herein,we propose a simple one-step dodecyl mercaptan functionalization method to fabricate Super-hydrophobic-Superoleophilic Copper Mesh(SSCM).The prepared SSCM possesses excellent water repellence and oil affinity,enabling it to successfully separate various oil-water mixtures with high separation efficiency(e.g.,>99%for hexadecane-water mixture).The SSCM retains high separating ability when hot water and strong corrosive aqueous solutions are used to simulate oil-water mixtures,indicating remarkable chemical durability of the dodecyl mercaptan functionalized copper mesh.Additionally,the efficiency can be well maintained during 50 cycles of separation,and the water repellence is even stable after storage in air for 120 days,demonstrating the reusability and long-term stability of the SSCM.Furthermore,the functionalized mesh also shows good mechanical robustness towards abrasion by sandpaper,and oil-water separation efficiency of>96%can be obtained after 10 cycles of abrasion.The reported one-step dodecyl mercaptan functionalization could be a simple method for increasing the water repellence of copper mesh,and thereby be a great candidate for treating large-scale oily wastewater in harsh environments. | Yanling Tian Jiekai Feng Zexin Cai Jiaqi Chao Dawei Zhang Yuxiao Cui Faze Chen | 2021 | Journal of Bionic Engineering2021,18,4: | 1 |
| 10 | A Facile and Green Construction of Biomimetic, Fluorine-free and Superhydrophobic Melamine Sponge with Magnetic-driven Function for Efficient Oil–water Separation and Oil Absorption显示文摘Inspired by nature,a superhydrophobic and magnetic melamine sponge(BFSM-MF)was fabricated by a one-step dip-coating method.Aiming at replacing nano-Fe_(3)O_(4) particles with a complex preparation process and high cost,the commercial and cheap Fe_(3)O_(4) originated from magnetite was employed as a magnetic substance.To acquire superhydrophobicity,the hierarchical mirco/nano-sized structure with low surface energy was mainly contributed by bonding hydrophobic Fe_(3)O_(4) and graphene with silicone resin onto the surface of the melamine sponge.The results demonstrated that the water and oil static contact angle values of BFSM-MF were 160°and 0°,revealing that BFSM-MF was superhydrophobic and super-oleophilic.Moreover,the self-cleaning ability,magnetic-driven oil absorption ability and continuous oil–water separation performance of BFSM-MF have also been evaluated.As expected,BFSM-MF possessed magnetic-driven oil absorption ability and the oil–water separation efficiency for light oil reaches 98%±1%.In addition,the adsorption capacity and recycling performance of diff erent organic solvents were systematically investigated.Therefore,the development of biomimetic,fluorine-free and superhydrophobic foam with magnetic-driven eff ect has potential application value in marine oil spill treatment and separation of domestic oil pollution. | Chenchen Liao Yurou Xia A.Yinaer Nu Keshen Boya Dai Song’an Zhao Ziqing Hu Zaihang Zheng Yan Liu | 2021 | Journal of Bionic Engineering2021,18,5: | 0 |
| 11 | Dip-coating of Superhydrophobic Surface on Irregular Substrates for Dropwise Condensation显示文摘Herein,self-assembled superhydrophobic composite coatings were successfully prepared using a one-step dip-coating method on different irregular parts.The fluorinated nano-SiO_(2) particles spread into a uniform layer owing to the viscosity of the composite resin.After the optimization of the process,the fabricated nanoporous-structured coating has low adhesion properties with chemical and high thermal stabilities.After baking at 250℃ for 2 h or soaking in a solution of pH=1 or pH=13 for 10 days,the coating could maintain its good superhydrophobicity.The self-ejecting effects of the condensed dewdrops and droplet bounce phenomenon indicate that the coatings can be well-distributed on components of different structures,and they have significant application prospects in irregular parts and industrial production in the near future. | Zhen Xiao Da Xu Wenwen Zhang Xinquan Yu Youfa Zhang | 2021 | Journal of Bionic Engineering2021,18,2: | 0 |