1
|
An B, Xu M, Sun W, Ma C, Luo S, Li J, Liu S, Li W. Butterfly wing-inspired superhydrophobic photonic cellulose nanocrystal films for vapor sensors and asymmetric actuators. Carbohydr Polym 2024; 345:122595. [PMID: 39227114 DOI: 10.1016/j.carbpol.2024.122595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 07/15/2024] [Accepted: 08/07/2024] [Indexed: 09/05/2024]
Abstract
Cellulose nanocrystals (CNCs)-based stimuli responsive photonic materials demonstrate great application potential in mechanical and chemical sensors. However, due to the hydrophilic property of cellulose molecular, a significant challenge is to build a water-resistant photonic CNCs material. Here, inspired by butterfly wings with vivid structural color and superhydrophobic property, we have designed a CNCs based superhydrophobic iridescent film with hierarchical structures. The iridescent colored layer is ascribed to the chiral nematic alignment of CNCs, the superhydrophobic layer is ascribed to the micro-nano structures of polymer microspheres. Specially, superhydrophobic iridescent CNCs film could be used as an efficient colorimetric humidity sensor due to the existence of 'stomates' on superhydrophobic layer, which allowed the humid gas to enter into and out from the humidity responsive chiral nematic layers. Meanwhile, superhydrophobic iridescent films show out-standing self-cleaning and anti-fouling performance. Moreover, when the one side of the CNCs film was covered with superhydrophobic layer, the Janus film displays asymmetric expansion and bending behaviors as well as responsive structural colors in hydrous ethanol. This CNCs based hierarchical photonic materials have promising applications including photonic sensors suitable for extreme environment and smart photonic actuators.
Collapse
Affiliation(s)
- Bang An
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Mingcong Xu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Wenye Sun
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Chunhui Ma
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Sha Luo
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Jian Li
- Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China
| | - Shouxin Liu
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China; Engineering Research Center of Advanced Wooden Materials, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Wei Li
- Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| |
Collapse
|
2
|
Patsidis AC, Dimitrakellis P, Gogolides E, Psarras GC. Dielectric Response of ZnO/PMMA Nanocomposites with Atmospheric Pressure Plasma-Modified Surfaces. MATERIALS (BASEL, SWITZERLAND) 2024; 17:4063. [PMID: 39203241 PMCID: PMC11356202 DOI: 10.3390/ma17164063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/11/2024] [Revised: 08/03/2024] [Accepted: 08/09/2024] [Indexed: 09/03/2024]
Abstract
In this work, the effect of etching the surface of polymer matrix nanocomposites with atmospheric pressure plasma targeting to achieve enhanced dielectric properties was investigated. Polymer nanocomposites, with varying reinforcing phase content, were modified by atmospheric-pressure plasma resulting in an increase in the surface filler's concentration. Polymethyl methacrylate (PMMA) matrix nanocomposites reinforced with zinc oxide (ZnO) nanoparticles were prepared and dielectrically studied as a function of the nanoparticle content and the plasma modified surfaces. The electrical response of the composite systems was studied by means of Broadband Dielectric Spectroscopy (BDS) over a wide range of temperatures and frequencies. The dielectric permittivity increased with the embedded phase content and with plasma surface treatment. Energy density followed the same trend as dielectric permittivity, and the plasma-treated nanocomposite with the higher ZnO content exhibited approximately 27% higher energy density compared to the unreinforced matrix.
Collapse
Affiliation(s)
- Anastasios C. Patsidis
- Smart Materials & Nanodielectrics Laboratory, Department of Materials Science, School of Natural Sciences, University of Patras, 26504 Patras, Greece;
| | - Panagiotis Dimitrakellis
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, 15341 Attiki, Greece; (P.D.); (E.G.)
| | - Evangelos Gogolides
- Institute of Nanoscience and Nanotechnology, NCSR “Demokritos”, Aghia Paraskevi, 15341 Attiki, Greece; (P.D.); (E.G.)
| | - Georgios C. Psarras
- Smart Materials & Nanodielectrics Laboratory, Department of Materials Science, School of Natural Sciences, University of Patras, 26504 Patras, Greece;
| |
Collapse
|
3
|
Kim AR, Mitra S, Shyam S, Zhao B, Mitra SK. Flexible hydrogels connecting adhesion and wetting. SOFT MATTER 2024; 20:5516-5526. [PMID: 38651874 DOI: 10.1039/d4sm00022f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Raindrops falling on window-panes spread upon contact, whereas hail can cause dents or scratches on the same glass window upon contact. While the former phenomenon resembles classical wetting, the latter is dictated by contact and adhesion theories. The classical Young-Dupre law applies to the wetting of pure liquids on rigid solids, whereas conventional contact mechanics theories account for rigid-on-soft or soft-on-rigid contacts with small deformations in the elastic limit. However, the crossover between adhesion and wetting is yet to be fully resolved. The key lies in the study of soft-on-soft interactions with material properties intermediate between liquids and solids. In this work, we translate adhesion to wetting by experimentally probing the static signature of hydrogels in contact with soft PDMS of varying elasticity of both the components. Consequently, we probe this transition across six orders of magnitude in terms of the characteristic elasto-adhesive parameter of the system. In doing so, we reveal previously unknown phenomenology and a theoretical model which smoothly bridges adhesion of glass spheres with total wetting of pure liquids on any given substrate.
Collapse
Affiliation(s)
- A-Reum Kim
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
| | - Surjyasish Mitra
- Department of Mechanical & Mechatronics Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
| | - Sudip Shyam
- Department of Mechanical & Mechatronics Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
| | - Boxin Zhao
- Department of Chemical Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
| | - Sushanta K Mitra
- Department of Mechanical & Mechatronics Engineering, Waterloo Institute for Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
| |
Collapse
|
4
|
Fang X, Liao R, Wang K, Zheng M, Li H, Wang R, Liu X, Dong Y, Wang K, Li J. Fabrication of bulk superhydrophobic wood by grafting porous poly(divinylbenzene) to wood structure using isocyanatoethyl methacrylate. RSC Adv 2024; 14:15201-15208. [PMID: 38737969 PMCID: PMC11082725 DOI: 10.1039/d4ra00889h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 04/29/2024] [Indexed: 05/14/2024] Open
Abstract
Superhydrophobic treatment of wood can effectively reduce the interaction between wood and moisture, avoiding deformation, cracking, mould, and other defects caused by water absorption, which can extend the service life of wood and broaden the application field. Currently, the poor abrasion resistance of superhydrophobic wood is a crucial problem limiting its widespread application, and the preparation of superhydrophobic wood with robustness, abrasion resistance, and chemical resistance remains a huge challenge. In this work, robust bulk superhydrophobic wood with excellent abrasion resistance and chemical durability was fabricated by synthesizing porous poly(divinylbenzene) in wood cell cavities using graft copolymerization and solvothermal methods. The contact angles and rolling angles on the superhydrophobic wood surface were approximately 156° and 3°, respectively. Superhydrophobicity was carried through the entire structure of the wood. Even after severe damage by abrasion and sawing, as well as tests with organic solvents and harsh environments, the superhydrophobic properties of wood remained stable. Meanwhile, the superhydrophobic wood exhibited great self-cleaning and antifouling properties. In addition, the water uptake and dimensional stability of the wood were significantly improved. This work developed a simple, efficient, and durable strategy for the fabrication of superhydrophobic wood with robustness, abrasion resistance, and chemical resistance, which was expected to be applied to the wood industry to achieve the high-value applications of wood products and extend their service life.
Collapse
Affiliation(s)
- Xinyu Fang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Ruijia Liao
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Kaiji Wang
- Tengzhou Tostar Power Electronic Engineering Co. Ltd Zaozhuang 277000 China
| | - Miao Zheng
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Hongji Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Rui Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Xiaorong Liu
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Youming Dong
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Kaili Wang
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
| | - Jianzhang Li
- Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Materials Science and Engineering, Nanjing Forestry University No. 159 Longpan Road Nanjing 210037 China
- MOE Key Laboratory of Wooden Material Science and Application, Beijing Forestry University No. 35 Tsinghua East Road Beijing 100083 China
| |
Collapse
|
5
|
Li S, Xiao P, Chen T. Superhydrophobic Solar-to-Thermal Materials Toward Cutting-Edge Applications. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2024:e2311453. [PMID: 38719350 DOI: 10.1002/adma.202311453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Revised: 04/30/2024] [Indexed: 05/16/2024]
Abstract
Solar-to-thermal conversion is a direct and effective way to absorb sunlight for heat via the rational design and control of photothermal materials. However, when exposed to water-existed conditions, the conventional solar-to-thermal performance may experience severe degradation owing to the high specific heat capacity of water. To tackle with the challenge, the water-repellent function is introduced to construct superhydrophobic solar-to-thermal materials (SSTMs) for achieving stable heating, and even, for creating new application possibilities under water droplets, sweat, seawater, and ice environments. An in-depth review of cutting-edge research of SSTMs is given, focusing on synergetic functions, typical construction methods, and cutting-edge potentials based on water medium. Moreover, the current challenges and future prospects based on SSTMs are also carefully discussed.
Collapse
Affiliation(s)
- Shan Li
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Peng Xiao
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| | - Tao Chen
- Key Laboratory of Advanced Marine Materials, Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 19A Yuquan Road, Beijing, 100049, China
| |
Collapse
|
6
|
Song J, Shen Q, Shao H, Deng X. Anti-Environmental Aging Passive Daytime Radiative Cooling. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2305664. [PMID: 38148594 PMCID: PMC10933639 DOI: 10.1002/advs.202305664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/30/2023] [Indexed: 12/28/2023]
Abstract
Passive daytime radiative cooling technology presents a sustainable solution for combating global warming and accompanying extreme weather, with great potential for diverse applications. The key characteristics of this cooling technology are the ability to reflect most sunlight and radiate heat through the atmospheric transparency window. However, the required high solar reflectance is easily affected by environmental aging, rendering the cooling ineffective. In recent years, significant advancements have been made in understanding the failure mechanisms, design strategies, and manufacturing technologies of daytime radiative cooling. Herein, a critical review on anti-environmental aging passive daytime radiative cooling with the goal of advancing their commercial applications is presented. It is first introduced the optical mechanisms and optimization principles of radiative cooling, which serve as a basis for further endowing environmental durability. Then the environmental aging conditions of passive daytime radiative cooling, mainly focusing on UV exposure, thermal aging, surface contamination and chemical corrosion are discussed. Furthermore, the developments of anti-environmental aging passive daytime radiative cooling materials, including design strategies, fabrication techniques, structures, and performances, are reviewed and classified for the first time. Last but not the least, the remaining open challenges and the insights are presented for the further promotion of the commercialization progress.
Collapse
Affiliation(s)
- Jianing Song
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Qingchen Shen
- Bio‐inspired Photonics GroupYusuf Hamied Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Huijuan Shao
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| | - Xu Deng
- Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu610054China
| |
Collapse
|
7
|
Khan GR, Daschakraborty S. Enhanced fluidity of water in superhydrophobic nanotubes: estimating viscosity using jump-corrected confined Stokes-Einstein approach. Phys Chem Chem Phys 2024; 26:4492-4504. [PMID: 38240480 DOI: 10.1039/d3cp05906e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2024]
Abstract
Accurately predicting the viscosity of water confined within nanotubes is vital for various technological applications. Traditional methods have failed in this regard, necessitating a novel approach. We introduced the jump-corrected confined Stokes-Einstein (JCSE) method and now employ the same to estimate the viscosity and diffusion in superhydrophobic nanotubes. Our study covers a temperature range of 230-300 K and considers three nanotube diameters. Results show that water inside superhydrophobic nanotubes exhibits a significantly lower viscosity and higher diffusion than those inside hydrophobic nanotubes. Narrower nanotubes and lower temperatures accentuate these effects. Furthermore, water inside superhydrophobic nanotubes display a lower viscosity than bulk water, with the difference increasing at lower temperatures. This reduction is attributed to weaker water-water interactions caused by a lower water density in the interfacial region. These findings highlight the importance of interfacial water density and its influence on nanotube viscosity, shedding light on nanoscale fluid dynamics and opening avenues for diverse applications.
Collapse
Affiliation(s)
- Golam Rosul Khan
- Department of Chemistry, Indian Institute of Technology Patna, Bihar 801106, India.
| | | |
Collapse
|
8
|
Ussenkhan SS, Kyrykbay BA, Yerlanuly Y, Zhunisbekov AT, Gabdullin MT, Ramazanov TS, Orazbayev SA, Utegenov AU. Fabricating durable and stable superhydrophobic coatings by the atmospheric pressure plasma polymerisation of hexamethyldisiloxane. Heliyon 2024; 10:e23844. [PMID: 38192869 PMCID: PMC10772173 DOI: 10.1016/j.heliyon.2023.e23844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 12/01/2023] [Accepted: 12/13/2023] [Indexed: 01/10/2024] Open
Abstract
The paper was devoted to the results of the study of methods to obtain superhydrophobic film based on the plasma polymerisation of hexamethyldisiloxane (HMDSO) inside the plasma jet at atmospheric pressure. The 3D printing technology was intended for film deposition, which has the advantage of producing superhydrophobic surfaces over a wide range of scales. The effect of synthesis parameters on the hydrophobic properties of the film has been studied. The obtained superhydrophobic films demonstrated stability and resistance in chemical solutions, at high temperatures, under the influence of UV-irradiation and in various weather conditions. The results can be used in various fields, including automotive, construction, electronics, medicine and others, where surface protection against moisture, contamination and corrosion is required.
Collapse
Affiliation(s)
- Sultan S. Ussenkhan
- Institute of Applied Science and Information Technologies, 280 Bayzakov str., 050038, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
| | - Baglan A. Kyrykbay
- Institute of Applied Science and Information Technologies, 280 Bayzakov str., 050038, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
| | - Yerassyl Yerlanuly
- Institute of Applied Science and Information Technologies, 280 Bayzakov str., 050038, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
- Kazakh-British Technical University, 59 Tole Bi Str., 050000, Almaty, Kazakhstan
| | - Askar T. Zhunisbekov
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
| | | | | | - Sagi A. Orazbayev
- Institute of Applied Science and Information Technologies, 280 Bayzakov str., 050038, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
| | - Almasbek U. Utegenov
- Institute of Applied Science and Information Technologies, 280 Bayzakov str., 050038, Almaty, Kazakhstan
- Al-Farabi Kazakh National University, 71/23 Al-Farabi Ave., 050040, Almaty, Kazakhstan
- Kazakh-British Technical University, 59 Tole Bi Str., 050000, Almaty, Kazakhstan
| |
Collapse
|
9
|
Nistal A, Sierra-Martín B, Fernández-Barbero A. On the Durability of Icephobic Coatings: A Review. MATERIALS (BASEL, SWITZERLAND) 2023; 17:235. [PMID: 38204088 PMCID: PMC10780097 DOI: 10.3390/ma17010235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 12/27/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
Ice formation and accumulation on surfaces has a negative impact in many different sectors and can even represent a potential danger. In this review, the latest advances and trends in icephobic coatings focusing on the importance of their durability are discussed, in an attempt to pave the roadmap from the lab to engineering applications. An icephobic material is expected to lower the ice adhesion strength, delay freezing time or temperature, promote the bouncing of a supercooled drop at subzero temperatures and/or reduce the ice accretion rate. To better understand what is more important for specific icing conditions, the different types of ice that can be formed in nature are summarized. Similarly, the alternative methods to evaluate the durability are reviewed, as this is key to properly selecting the method and parameters to ensure the coating is durable enough for a given application. Finally, the different types of icephobic surfaces available to date are considered, highlighting the strategies to enhance their durability, as this is the factor limiting the commercial applicability of icephobic coatings.
Collapse
Affiliation(s)
- Andrés Nistal
- Applied Physics, Department of Chemistry and Physics, University of Almeria, 04120 Almeria, Spain; (B.S.-M.); (A.F.-B.)
| | | | | |
Collapse
|
10
|
Shahi NK, Kim JY, Dockko S. Process analysis of microplastic aging during the photochemical oxidation process and its effect on the adsorption behavior of dissolved organic matter. CHEMOSPHERE 2023; 341:139980. [PMID: 37648171 DOI: 10.1016/j.chemosphere.2023.139980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/01/2023]
Abstract
Information on microplastics (MPs) interactions with dissolved organic matter (DOM) is essential for understanding their environmental impacts. However, research is scarce regarding the adsorption behavior of DOM with different characteristics onto pristine and aged MPs. This research thus investigates MPs aging behavior accelerated by UV/Persulfate and UV/chlorine oxidation processes and the adsorption behavior of organic matter with low-specific ultraviolet absorbance (L-SUVA) and high-SUVA (H-SUVA) characteristics. MPs were degraded by UV/Cl and UV/Persulfate for 30 days. Changes in thermal properties, surface morphology, and chemistry were studied using different analytical techniques. The adsorption behavior was assessed by adsorption kinetic and isotherm study. After oxidation, the surface of the MPs showed a significant increase in the oxygen-containing functional groups, contact angle, surface roughness, and surface energy, and a decrease in crystallinity. The oxidation effect follows the order of UV/Cl > UV/Persulfate. The kinetic and equilibrium data of H-SUVA adsorption on pristine and aged MPs well-fitted the pseudo-second-order and Langmuir model. In contrast, L-SUVA well-fitted the pseudo-first-order and Freundlich model. The adsorption capacity (qm) increased in the following orders: 8.11 > 5.87>4.29 mg g-1 for H-SUVA and 19.81 > 6.662>5.315 mg g-1 for L-SUVA by MPs aged with UV/Cl, UV/Persulfate and pristine MPs, respectively. The larger the surface damage of MPs, the greater the adsorption affinity of DOM. The result was attributed to the physical adsorption process, hydrophobic interactions, electrostatic, hydrogen, and halogen bonding. These findings are beneficial to provide new insights involving the adsorption behavior and interaction mechanisms of DOM onto MPs for the environmental risk assessment.
Collapse
Affiliation(s)
- Nirmal Kumar Shahi
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Jae-Yup Kim
- Department of Chemical Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea
| | - Seok Dockko
- Department of Civil and Environmental Engineering, Dankook University, 152, Jukjeon-ro, Suji-gu, Yongin-si, Gyeonggi-do, Republic of Korea.
| |
Collapse
|
11
|
Chang YM, Wang YS, Chen HY. Controlling Superhydrophobicity on Complex Substrates Based on a Vapor-Phase Sublimation and Deposition Polymerization. ACS APPLIED MATERIALS & INTERFACES 2023; 15:48754-48763. [PMID: 37793161 PMCID: PMC10592315 DOI: 10.1021/acsami.3c06684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Accepted: 09/21/2023] [Indexed: 10/06/2023]
Abstract
The superhydrophobic properties of material surfaces have attracted significant research and practical development in a wide range of applications. In the present study, a superhydrophobic coating was fabricated using a vapor-phase sublimation and deposition process. This process offers several advantages, including a controllable and tunable superhydrophobic property, a dry and solvent-free process that uses well-defined water/ice templates during fabrication, and a coating technology that is applicable to various substrates, regardless of their dimensions or complex geometric configurations. The fabrication process exploits time-dependent condensation to produce ice templates with a controlled surface morphology and roughness. The templates are sacrificed via vapor sublimation, which results in mass transfer of water vapor out of the system. A second vapor source of a polymer precursor is then introduced to the system, and deposition occurs upon polymerization on the iced templates, replicating the same topologies from the iced templates. The continuation of the co-current sublimation and deposition processes finally renders permanent hierarchical structures of the polymer coatings that combine the native hydrophobic property of the polymer and the structured property by the sacrificed ice templates, achieving a level of superhydrophobicity that is tunable from 90° to 164°. The experiments demonstrated the use of [2,2]paracyclophanes as the starting materials for forming the superhydrophobic coatings of poly(p-xylylenes) on substrate surfaces. In comparison to conventional vapor deposition of poly(p-xylylenes), which resulted in dense thin-film coatings with only a moderate water contact angle of approximately 90°, the reported superhydrophobic coatings and fabrication process can achieve a high water contact angle of 164°. Demonstrations furthermore revealed that the proposed coatings are durable while maintaining superhydrophobicity on various substrates, including an intraocular lens and a cardiovascular stent, even against harsh treatment conditions and varied solution compositions used on the substrates.
Collapse
Affiliation(s)
- Yu-Ming Chang
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
| | - Yun-Shan Wang
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
| | - Hsien-Yeh Chen
- Department
of Chemical Engineering, National Taiwan
University, Taipei 10617, Taiwan
- Molecular
Imaging Center, National Taiwan University, Taipei 10617, Taiwan
| |
Collapse
|
12
|
Li Y, Ma X, Chen Y, Kang X, Yang B. Superhydrophobicity Mechanism and Nanoscale Profiling of PDMS-Modified Kaolinite Nanolayers via Ab Initio-MD Simulation and Atomic Force Microscopy Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023. [PMID: 37289639 DOI: 10.1021/acs.langmuir.3c00915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study aimed to investigate the superhydrophobic mechanism of kaolinite particles modified with poly(dimethylsiloxane) (PDMS), which has potential as a superior hydrophobic coating. The study employed a combination of density functional theory (DFT) simulation modeling, characterization of the chemical properties and microstructure, contact angle measurements, and chemical force spectroscopy of atomic force microscopy. The results showed successful PDMS grafting onto the kaolinite surface, resulting in micro- and nanoscale roughness and a contact angle of 165°, indicating a successful superhydrophobic effect. The study also identified the mechanism of the hydrophobic interaction through two-dimensional micro- and nanoscale hydrophobicity images, highlighting the potential of this approach for developing new hydrophobic coatings.
Collapse
Affiliation(s)
- Yi Li
- Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China
- National Center for International Research Collaboration in Building Safety and Environment, Hunan University, Changsha 410082, China
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Xiongying Ma
- Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China
- National Center for International Research Collaboration in Building Safety and Environment, Hunan University, Changsha 410082, China
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Yongqing Chen
- Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China
- National Center for International Research Collaboration in Building Safety and Environment, Hunan University, Changsha 410082, China
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Xin Kang
- Key Laboratory of Building Safety and Energy Efficiency of the Ministry of Education, Hunan University, Changsha 410082, China
- National Center for International Research Collaboration in Building Safety and Environment, Hunan University, Changsha 410082, China
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Bin Yang
- College of Materials Science and Engineering, Hunan University, Changsha 410082, China
| |
Collapse
|
13
|
Aguirre-Loredo RY, Fonseca-García A, Calambas HL, Salazar-Arango A, Caicedo C. Improvements of thermal and mechanical properties of achira starch/chitosan/clay nanocomposite films. Heliyon 2023; 9:e16782. [PMID: 37292352 PMCID: PMC10245066 DOI: 10.1016/j.heliyon.2023.e16782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 05/26/2023] [Accepted: 05/26/2023] [Indexed: 06/10/2023] Open
Abstract
Thermoplastic biofilms were developed from achira starch, chitosan and nanoclays using the solvent-casting method. To obtain the filmogenic solutions, different sonication times (0, 10, 20 and 30 min) were considered in order to evaluate the incidence of this parameter on the chemical and physico-mechanical properties of the bionanocomposite films. The chemical analysis using FTIR spectroscopy showed strong intermolecular interactions between the components with increasing sonication times. The results for tensile strength and elongation were satisfactory for films with 20 min of sonication with increases of 154% and 161%, respectively. Morphological analysis showed greater homogeneity, while thermal analysis showed that sonication favoured the plasticization process and thus, the production of homogeneous materials. The water absorption and wettability tests showed less hydrophilic materials allowing these new materials to be considered for use as coatings or packaging for the food sector.
Collapse
Affiliation(s)
- Rocio Yaneli Aguirre-Loredo
- Centro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, Mexico
- Investigadoras por México CONACYT-CIQA, Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, Mexico
| | - Abril Fonseca-García
- Centro de Investigación en Química Aplicada (CIQA), Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, Mexico
- Investigadoras por México CONACYT-CIQA, Blvd. Enrique Reyna Hermosillo 140, Saltillo, Coahuila 25294, Mexico
| | - Heidy Lorena Calambas
- Grupo de Investigación en Desarrollo de Materials y Productos, Centro Nacional de Asistencia Técnica a la Industria (ASTIN), SENA, Cali, 760003, Colombia
| | - Alejandra Salazar-Arango
- Facultad de Ingeniería, Unidad Central del Valle del Cauca (UCEVA), Carrera 17a 48-144, Tuluá 763022, Colombia
| | - Carolina Caicedo
- Facultad de Ingeniería, Unidad Central del Valle del Cauca (UCEVA), Carrera 17a 48-144, Tuluá 763022, Colombia
| |
Collapse
|
14
|
Apsey H, Hill D, Barron AR, Alexander S. Slippery Alkoxysilane Coatings for Antifouling Applications. ACS APPLIED MATERIALS & INTERFACES 2023; 15:17353-17363. [PMID: 36951685 PMCID: PMC10080537 DOI: 10.1021/acsami.3c00555] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/09/2023] [Indexed: 06/18/2023]
Abstract
Herein, we report the wettability and antifouling behavior of a range of different siloxane coatings on plastic and glass substrates. The films investigated are prepared using trimethoxysilane precursors with different alkyl chain lengths (1-18 C atoms) in order to study how the nature of the hydrophobic group affects the different parameters used to characterize wettability (contact angles, sliding angles, and contact angle hysteresis). Atomic force microscopy analysis shows that the coatings possess low surface topography [root mean squared roughness (rms) < 50 nm] and are highly transparent as studied using UV-vis spectroscopy. The sliding properties of H2O, CH2I2, methanol, and ethylene glycol were observed to be strongly influenced by the chain length of the alkoxysilane precursor used. The coatings formed from the longer chain analogues show comparable water sliding angles to superhydrophobic surfaces. These coatings show similar performance to analogous alkoxysilane coating-bearing fluorinated groups, indicating that they could act as viable environmentally friendly alternatives to some of the fluorinated films that have been widely adopted. Furthermore, these surfaces are highly durable toward common forms of abrasion and are observed to show low adhesion toward synthetic feces, indicating that their utility extends further than repelling liquids alone. Consequently, these coatings could show promise for potential use in applications in the medical sector where fouling by biological mixtures leads to an unsustainable use of materials.
Collapse
Affiliation(s)
- Henry Apsey
- Energy
Safety Research Institute (ESRI), School of Engineering and Applied
Sciences, Swansea University Bay Campus, Fabian Way, Swansea SA1 8EN, U.K.
| | - Donald Hill
- Energy
Safety Research Institute (ESRI), School of Engineering and Applied
Sciences, Swansea University Bay Campus, Fabian Way, Swansea SA1 8EN, U.K.
| | - Andrew R. Barron
- Energy
Safety Research Institute (ESRI), School of Engineering and Applied
Sciences, Swansea University Bay Campus, Fabian Way, Swansea SA1 8EN, U.K.
- Arizona
Institute for Resilient Environments and Societies (AIRES), University of Arizona, Tucson, Arizona 85721, United States
- Department
of Chemistry and Department of Materials Science and Nanoengineering, Rice University, Houston, Texas 77005, United States
- Faculty
of Engineering, Universiti Teknologi Brunei, Darussalam BE1410, Brunei
| | - Shirin Alexander
- Energy
Safety Research Institute (ESRI), School of Engineering and Applied
Sciences, Swansea University Bay Campus, Fabian Way, Swansea SA1 8EN, U.K.
| |
Collapse
|
15
|
Zheng L, Luo S. Fabrication of a durable superhydrophobic surface with corrosion resistance on copper. INT J ELECTROCHEM SC 2023. [DOI: 10.1016/j.ijoes.2023.100093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
|
16
|
Superhydrophobic modification of cellulosic paper-based materials: Fabrication, properties, and versatile applications. Carbohydr Polym 2023; 305:120570. [PMID: 36737208 DOI: 10.1016/j.carbpol.2023.120570] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Cellulose is the cheapest and mostly widespread green raw material on earth. Due to the easy and versatile developed modification of cellulose, many cellulosic paper-based sustainable materials and their multifunctional applications have attained increasing interest under the background of the implementation of the "plastic ban" policy. However, intrinsic cellulose paper is hydrophilic and non-water-proof, which highly limited its application, thus becoming a bottleneck for the development of "cellulosic paper-based plastic replacement". Unquestioningly, the superhydrophobic modification of cellulosic paper-based materials and the extension of their high value-added applications are highly desired, which is the main content of this review. More importantly, we presented the comprehensive discussion of the functionalized applications of superhydrophobic cellulosic paper-based materials ranging from conventional products to high value-added functional materials such as paper straw and paper mulch film for the first time, which have great industrialization potential and value. This review would offer the valuable guidance and insightful information for the rational construction of sustainable superhydrophobic cellulosic paper for advanced functional devices.
Collapse
|
17
|
Wang F, Zhan J, Ma R, Tian Y. Simultaneous improvement of the physical and biological properties of starch films by incorporating steviol glycoside-based solid dispersion. Carbohydr Polym 2023; 311:120766. [PMID: 37028859 DOI: 10.1016/j.carbpol.2023.120766] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 02/09/2023] [Accepted: 02/26/2023] [Indexed: 03/06/2023]
Abstract
Bioactive compounds are frequently incorporated into polysaccharides (e.g., starch) to form active biodegradable films for food packaging, but some of them are water insoluble (e.g., curcumin, CUR) that will make the films have undesirable performance. Herein, CUR was successfully solubilized into the aqueous starch film solution by steviol glycoside (STE, a natural sweetener)-based solid dispersion. The mechanisms of solubilization and film formation were explored through molecular dynamic simulation and various characterization methods. The results showed that the amorphous state of CUR combined with micellar encapsulation of STE achieved the solubilization of CUR. STE and starch chains cooperated to form the film via hydrogen bonding, while CUR was uniformly and densely distributed within the film in the form of needle-like microcrystals. The as-prepared film exhibited high flexibility, great moisture barrier, and excellent UV barrier (UV transmittance: ∼0 %). Compared with the film containing CUR alone, the as-prepared film possessed higher release efficiency, antibacterial activity, and pH response sensitivity due to the assistance of STE. Hence, the introduction of STE-based solid dispersion can simultaneously improve the biological and physical properties of starch films, which provides a green, nontoxic, and facile strategy for the perfect integration of hydrophobic bioactive compounds and polysaccharide-based films.
Collapse
Affiliation(s)
- Fan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Jinling Zhan
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi 214122, PR China
| | - Rongrong Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| |
Collapse
|
18
|
Vámos C, Rácz I, Bárány T, Menyhárd A, Marosfői BB. Novel, solvent‐based method for the production of polymer sheets with a superhydrophobic surface. POLYM ENG SCI 2023. [DOI: 10.1002/pen.26283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Affiliation(s)
- Csenge Vámos
- Department of Polymer Engineering, Faculty of Mechanical Engineering Budapest University of Technology and Economics Budapest Hungary
- Furukawa Electric Institute of Technology Ltd Budapest Hungary
| | - Ilona Rácz
- Furukawa Electric Institute of Technology Ltd Budapest Hungary
| | - Tamás Bárány
- Department of Polymer Engineering, Faculty of Mechanical Engineering Budapest University of Technology and Economics Budapest Hungary
| | - Alfréd Menyhárd
- Department of Physical Chemistry and Materials Science, Faculty of Chemical Technology and Biotechnology Budapest University of Technology and Economics Budapest Hungary
| | | |
Collapse
|
19
|
Zhang M, Wang X, Xue Y, Li J, Wang J, Fang C, Zhu L. Robust and Scalable In Vitro Surface Mineralization of Inert Polymers with a Rationally Designed Molecular Bridge. ACS APPLIED MATERIALS & INTERFACES 2023; 15:8730-8741. [PMID: 36735823 DOI: 10.1021/acsami.2c21286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
The artificial integration of inorganic materials onto polymers to create the analogues of natural biocomposites is an attractive field in materials science. However, due to significant diversity in the interfacial properties of two kinds of materials, advanced synthesis methods are quite complicated and the resultant materials are always vulnerable to external environments, which limits their application scenarios and makes them unsuitable for scalable production. Herein, we report a simple and universal approach to achieve robust and scalable surface mineralization of polymers using a rationally designed triple functional molecular bridge of fluorosilane, 3-[(perfluorohexyl sulfonyl) amino] propyltriethoxy silane (PFSS). In a two-step solution deposition, the fluoroalkyl and siloxane of the PFSS take charge of its adhesion and immobilization onto polymers by hydrophobic interaction and wrapping-like chemical cross-linking, and then the assembly and growth of inorganic nanoclusters for integration are achieved by strong chemical coordination of PFSS sulfonamide. The versatile mineralization of inorganic oxides (e.g., TiO2, SiO2, and Fe2O3) onto chemically inert polymer surfaces was realized very well. The resultant mineralized materials exhibit robust and multiple functionalities for hostile applications, such as hydrophilic membranes for removing oils in strong acidic and alkaline wastewaters, fabrics with advanced anti-bacteria for healthy wearing, and plates with strong mechanical performance for better use. Experimental results and theoretical calculations confirmed the homogenous distribution of the PFSS onto polymers via cross-linking for robust coordination with inorganic oxides. These results demonstrate a skillful enlightenment in the design of high-performance mineralized polymer materials used as membranes, fabrics, and medical devices.
Collapse
Affiliation(s)
- Mengxiao Zhang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Xiaohe Wang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Yunyun Xue
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Jiaqi Li
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
| | - Jianyu Wang
- Center for Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing312000, China
| | - Chuanjie Fang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
- MOE Engineering Research Center of Membrane and Water Treatment Technology, Zhejiang University, Hangzhou310027, China
- Center for Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing312000, China
| | - Liping Zhu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou310027, China
- MOE Engineering Research Center of Membrane and Water Treatment Technology, Zhejiang University, Hangzhou310027, China
- Center for Healthcare Materials, Shaoxing Institute, Zhejiang University, Shaoxing312000, China
| |
Collapse
|
20
|
Yang Y, Guo Z, Liu W. Special Superwetting Materials from Bioinspired to Intelligent Surface for On-Demand Oil/Water Separation: A Comprehensive Review. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2204624. [PMID: 36192169 DOI: 10.1002/smll.202204624] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 08/24/2022] [Indexed: 05/27/2023]
Abstract
Since superwetting surfaces have emerged, on-demand oil/water separation materials serve as a new direction for meeting practical needs. This new separation mode uses a single porous material to allow oil-removing and water-removing to be achieved alternately. In this review, the fundamentals of wettability are systematically summarized in oil/water separation. Most importantly, the two states, bioinspired surface and intelligent surface, are summarized for on-demand oil/water separation. Specifically, bioinspired surfaces include micro/nanostructures, bioinspired chemistry, Janus-featured surfaces, and dual-superlyophobic surfaces that these superwetting materials can possess asymmetric wettability in one structure system or opposite underliquid wettability by prewetting. Furthermore, an intelligent surface can be adopted by various triggers such as pH, thermal and photo stimuli, etc., to control wettability for switchable oil/water separation reversibly, expressing a thought beyond nature to realize innovative oil/water separation by external stimuli. Remarkably, this review also discusses the advantages of all the materials mentioned above, expanding the separation scope from the on-demand oil/water mixtures to the multiphase immiscible liquid-liquid mixtures. Finally, the prospects of on-demand oil/water separation materials are also concluded.
Collapse
Affiliation(s)
- Yong Yang
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, 430062, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| | - Zhiguang Guo
- Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan, 430062, P. R. China
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
- Hubei Key Laboratory of Polymer Materials, School of Materials Science and Engineering, Hubei University, Wuhan, 430062, P. R. China
| | - Weimin Liu
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
| |
Collapse
|
21
|
Kim KC, Lin X, Li C. Structural design of the electrospun nanofibrous membrane for membrane distillation application: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:82632-82659. [PMID: 36219296 PMCID: PMC9552148 DOI: 10.1007/s11356-022-23066-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 09/13/2022] [Indexed: 06/12/2023]
Abstract
Although membrane distillation (MD) is a promising technology for water desalination and industrial wastewater treatment, the MD process is not widely applied in the global water industry due to the lack of a suitable membrane for the MD process. The design and appropriate manufacture are the most important factors for MD membrane optimization. The well-designed porous structure, superhydrophobic surface, and pore-wetting prevention of the membrane are vital properties of the MD membrane. Nowadays, electrospinning that is capable of manufacturing membranes with superhydrophobic or omni phobic properties is considered a promising technology. Electrospun nanofibrous membranes (ENMs) possess the characteristics of cylindrical morphology, re-entrant structure, and easy-shaping for a specific purpose, benefiting the membrane design and modification. Based on that, this review investigates the current state and future progress of the superhydrophobic, multi-layer, and omniphobic ENMs manufactured with various structural designs for seawater desalination and wastewater purification. We expect that this paper will provide some recommendations and guidance for further fabrication research and the configuration design of ENMs in the MD process for seawater desalination and wastewater purification.
Collapse
Affiliation(s)
- Kuk Chol Kim
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
- Metallurgical Faculty, Kim Chaek University of Science and Technology, Kyogu dong 60, Central District, Pyongyang, Democratic People's Republic of Korea
| | - Xiaoqiu Lin
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Congju Li
- School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing, 100083, China.
| |
Collapse
|
22
|
Redkina GV, Sergienko AS, Kuznetsov YI, Grafov OY. Superhydrophobic Anticorrosive Phosphonate-Siloxane Films Formed on Zinc with Different Surface Morphology. MATERIALS (BASEL, SWITZERLAND) 2022; 15:5360. [PMID: 35955295 PMCID: PMC9369842 DOI: 10.3390/ma15155360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 07/31/2022] [Accepted: 08/01/2022] [Indexed: 12/04/2022]
Abstract
The composition, structure, and protective and hydrophobic properties of nanoscale films formed layer-by-layer in solutions of sodium dodecylphosphonate (SDDP) and vinyltrimethoxysilane or n-octyltriethoxysilane (OTES) on the zinc surface with different morphologies were studied by SEM, XPS, water contact angle measurements, and electrochemical and corrosion tests. The protective, hydrophobic properties of phosphonate-siloxane films on zinc and their stability in a corrosive media are determined both by the initial surface morphology and composition of the surface oxide layer, and by the nature of inhibitors. It was shown that preliminary laser texturing of the zinc surface is preferable than chemical etching to enhance the anticorrosive properties of the resulting thin films. The most stable films with excellent superhydrophobic and protective properties in atmospheres of high humidity and salt spray are formed on the zinc surface with fractal morphology during layer-by-layer passivation with SDDP and OTES.
Collapse
Affiliation(s)
- Galina V. Redkina
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Leninsky Prospect 31-4, 119071 Moscow, Russia
| | | | | | | |
Collapse
|
23
|
Esmaeilzadeh P, Zandi A, Ghazanfari MH, Khezrnejad A, Fatemi M, Molaei Dehkordi A. Selective Fabrication of Robust and Multifunctional Super Nonwetting Surfaces by Diverse Modifications of Zirconia-Ceria Nanocomposites. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:9195-9209. [PMID: 35867863 DOI: 10.1021/acs.langmuir.2c00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The creation of surfaces with various super nonwetting properties is an ongoing challenge. We report diverse modifications of novel synthesized zirconia-ceria nanocomposites by different low surface energy agents to fabricate nanofluids capable of regulating surface wettability of mineral substrates to achieve selective superhydrophobic, superoleophobic-superhydrophilic, and superamphiphobic conditions. Surfaces treated with these nanofluids offer self-cleaning properties and effortless rolling-off behavior with sliding angles ≤7° for several liquids with surface tensions between 26 and 72.1 mN/m. The superamphiphobic nanofluid coating imparts nonstick properties to a solid surface whereby liquid drops can be effortlessly displaced on the coating with a near-zero tilt and conveniently lifted off using a needle tip, leaving no trace. Further, the superamphiphobic surface demonstrates good oil repellency toward ultralow surface tension liquids such as n-hexane and n-heptane. The superoleophobic-superhydrophilic surface repels oil droplets well regardless of whether it is in the air or underwater conditions. In addition, reaping the benefits of the ZrO2-CeO2 nanocomposites' photocatalysis feature, the superoleophobic-superhydrophilic coating exhibits self-cleaning ability by the degradation of color dyes. Modification of the wettability of substrates is carried out by a cost-effective and facile solution-immersion approach, which creates surfaces with hierarchical nano-submicron-scaled structures. The multipurpose coated surfaces have outstanding durability and mechanical stability. They also resist well high-temperature-high-pressure conditions, which will provide various practical applications in different fields, including the condensate banking removal in gas reservoirs or the separation of oil/water mixtures.
Collapse
Affiliation(s)
- Pouriya Esmaeilzadeh
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| | - Ahmad Zandi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| | | | - Ayub Khezrnejad
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| | - Mobeen Fatemi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| | - Asghar Molaei Dehkordi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| |
Collapse
|
24
|
Wang B, Liu X, Miao X, Deng W. Fabrication of robust superhydrophobic magnetic multifunctional coatings and liquid marbles. J Colloid Interface Sci 2022; 628:619-630. [PMID: 35940146 DOI: 10.1016/j.jcis.2022.07.178] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/25/2022] [Accepted: 07/28/2022] [Indexed: 11/29/2022]
Abstract
To obtain durable and multi-function superhydrophobic surfaces, we reported a facial method to prepare a multifunctional suspension (γ-Fe2O3@SiO2@PDMS suspension) named as FSP suspension, in which γ-Fe2O3 was coated by the silica shell and PDMS was used as the outer layer. Superhydrophobic magnetic polyurethane (SMPU) sponge was prepared by immersing the polyurethane (PU) sponge into the FSP suspension, exhibiting the superior ability to absorb oil. In addition, it could also move directionally by the attraction of magnets and absorb the oil along the fixed path. The heated superhydrophobic magnetic stainless steel (H-SMSS) mesh was acquired by spraying FSP suspension onto the stainless steel mesh and then heating at 400 °C, which demonstrated superior superhydrophobicity and resistance to abrasion and chemical corrosion. Besides, the H-SMSS mesh displayed excellent flux and efficiency to separate the oil/water mixture. Rolling droplets on FSP particles, the superhydrophobic magnetic liquid marbles (SMLMs) were fabricated, in which liquids with different volumes were encapsulated and transported directionally. Further, it was convenient to inject liquid into the SMLM and withdraw liquid from it. Thus, the prepared FSP suspension has promising applications in constructing large-area, robust, and multifunctional surfaces and microreactors.
Collapse
Affiliation(s)
- Bo Wang
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Xiaogang Liu
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China
| | - Xinrui Miao
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China.
| | - Wenli Deng
- College of Materials Science and Engineering, South China University of Technology, Guangzhou 510640, People's Republic of China.
| |
Collapse
|
25
|
Non-toxic self-cleaning large area cement blocks fabrication by biomimicking superhydrophobic periwinkle flowers. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129112] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
26
|
Controllable construction of multifunctional superhydrophobic coating with ultra-stable efficiency for oily water treatment. J Colloid Interface Sci 2022; 628:356-365. [DOI: 10.1016/j.jcis.2022.07.143] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 07/20/2022] [Accepted: 07/23/2022] [Indexed: 11/20/2022]
|
27
|
Esmaeilzadeh P, Ghazanfari MH, Molaei Dehkordi A. Tuning the Wetting Properties of SiO 2-Based Nanofluids to Create Durable Surfaces with Special Wettability for Self-Cleaning, Anti-Fouling, and Oil–Water Separation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c00934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Pouriya Esmaeilzadeh
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| | | | - Asghar Molaei Dehkordi
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran 11155-9564, Iran
| |
Collapse
|
28
|
Müllers S, Florea-Hüring M, von Vacano B, Bruchmann B, Rühe J. Hairy surfaces by cold drawing leading to dense lawns of high aspect ratio hairs. Sci Rep 2022; 12:9952. [PMID: 35705571 PMCID: PMC9200784 DOI: 10.1038/s41598-022-13419-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 04/22/2022] [Indexed: 11/18/2022] Open
Abstract
The surfaces of many organisms are covered with hairs, which are essential for their survival in a complex environment. The generation of artificial hairy surfaces from polymer materials has proven to be challenging as it requires the generation of structures with very high aspect ratios (AR). We report on a technique for the fabrication of surfaces covered with dense layers of very high AR nanoscale polymer hairs. To this, templates having pores with diameters of several hundred nanometers are filled with a polymer melt by capillary action. The polymer is then allowed to cool and the template is mechanically removed. Depending on the conditions employed, the formed structures can be a simple replica of the pore, or the polymer is deformed very strongly by cold drawing to yield in long hairs, with hair densities significantly up to 6,6 × 108 hairs/cm2 at AR of much higher than 200. The mechanism of hair formation is attributed to a delicate balance between the adhesion forces of the polymer in the pore and the yield force acting on it during mechanically demolding. We demonstrate how with very little effort and within a timescale of seconds unique topographies can be obtained, which can dramatically tailor the wetting properties of common polymers.
Collapse
Affiliation(s)
- Stefan Müllers
- Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110, Freiburg, Germany
| | - Mara Florea-Hüring
- Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110, Freiburg, Germany
| | - Bernhard von Vacano
- BASF SE, Advanced Materials and Systems Research, Carl-Bosch-Strasse 38, 67056, Ludwigshafen, Germany
| | - Bernd Bruchmann
- BASF SE, Advanced Materials and Systems Research, Carl-Bosch-Strasse 38, 67056, Ludwigshafen, Germany
| | - Jürgen Rühe
- Department of Microsystems Engineering-IMTEK, University of Freiburg, Georges-Köhler-Allee 103, 79110, Freiburg, Germany.
- livMatS@Freiburg Institute for Interactive Materials and Bioinspired Technologies (FIT), University of Freiburg, Georges-Köhler-Allee 105, 79110, Freiburg, Germany.
| |
Collapse
|
29
|
Effect of Solvent on Superhydrophobicity Behavior of Tiles Coated with Epoxy/PDMS/SS. Polymers (Basel) 2022; 14:polym14122406. [PMID: 35745983 PMCID: PMC9230667 DOI: 10.3390/polym14122406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/04/2022] [Accepted: 06/08/2022] [Indexed: 12/10/2022] Open
Abstract
Superhydrophobic coatings are widely applied in various applications due to their water-repelling characteristics. However, producing a durable superhydrophobic coating with less harmful low surface materials and solvents remains a challenge. Therefore, the aim of this work is to study the effects of three different solvents in preparing a durable and less toxic superhydrophobic coating containing polydimethylsiloxane (PDMS), silica solution (SS), and epoxy resin (DGEBA). A simple sol-gel method was used to prepare a superhydrophobic coating, and a spray-coating technique was employed to apply the superhydrophobic coating on tile substrates. The coated tile substrates were characterized for water contact angle (WCA) and tilting angle (TA) measurements, Field-Emission Scanning Electron Microscopy (FESEM), Atomic Force Microscopy (AFM), and Fourier Transform Infrared Spectroscopy (FTIR). Among 3 types of solvent (acetone, hexane, and isopropanol), a tile sample coated with isopropanol-added solution acquires the highest water contact angle of 152 ± 2° with a tilting angle of 7 ± 2° and a surface roughness of 21.80 nm after UV curing for 24 h. The peel off test showed very good adherence of the isopropanol-added solution coating on tiles. A mechanism for reactions that occur in the best optimized solvent is proposed.
Collapse
|
30
|
Liu Z, Niu T, Lei Y, Luo Y. Metal surface wettability modification by nanosecond laser surface texturing: A review. BIOSURFACE AND BIOTRIBOLOGY 2022. [DOI: 10.1049/bsb2.12039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Zhifang Liu
- Chongqing University of Technology Chongqing China
| | - Tong Niu
- Chongqing University College of Mechanical and Vehicle Engineering Chongqing China
| | - Yaxi Lei
- China Academy of Engineering Physics Mianyang Sichuan China
| | | |
Collapse
|
31
|
Yang C, Zeng Q, Huang J, Guo Z. Droplet manipulation on superhydrophobic surfaces based on external stimulation: A review. Adv Colloid Interface Sci 2022; 306:102724. [DOI: 10.1016/j.cis.2022.102724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/14/2022] [Accepted: 06/22/2022] [Indexed: 11/01/2022]
|
32
|
Huang W, Huang J, Guo Z, Liu W. Icephobic/anti-icing properties of superhydrophobic surfaces. Adv Colloid Interface Sci 2022; 304:102658. [PMID: 35381422 DOI: 10.1016/j.cis.2022.102658] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/26/2022] [Accepted: 03/26/2022] [Indexed: 01/31/2023]
Abstract
In the winter, icing on solid surfaces is a typical occurrence that may create a slew of hassles and even tragedies. Anti-icing surfaces are one of the effective solutions for this kind of problem. The roughness of a superhydrophobic surface traps air and weakens the contact between the solid surface and liquid water, allowing water droplets to be removed before freezing. At present, the conventional anti-icing methods including mechanical or thermal technology are not only surface structure unfriendly but also have the obsessions of low efficiency, high energy consumption and high manufacturing costs. Hence, developing a way to remove ice by just modifying the surface shape or chemical composition with a low surface energy is extremely desirable. Numerous attempts have been made to investigate the evolution of ice nucleation and icing on superhydrophobic surfaces under the direction of the ice nucleation hypothesis. In this paper, the research progress of ice nucleation in recent years is reviewed from theoretical and application. The icephobic surfaces are described using the wettability and classical nucleation theories. The benefits and drawbacks of anti-icing superhydrophobic surface are summarized, as well as deicing methods. Finally, several applications of ice phobic materials are illustrated, and some problems and challenges in the research field are discussed. We believed that this review will be useful in guiding future water freezing initiatives.
Collapse
|
33
|
Mehanna Y, Crick CR. Study on the Influence of Polymer/Particle Properties on the Resilience of Superhydrophobic Coatings. ACS OMEGA 2022; 7:18052-18062. [PMID: 35664566 PMCID: PMC9161389 DOI: 10.1021/acsomega.2c01547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Enhancement in the resilience of superhydrophobic coatings is crucial for their future applicability. However, the progress in this aspect is currently limited due to the lack of a consistent resilience analysis methodology/protocol as well as the limited understanding of the influence of the materials components on the resultant coating performance. This study applies a quantitative analysis methodology involving image analysis and mass tracking and utilizes it to investigate how the properties of coating components can influence coating resilience. The factors examined were changing the molecular weight/tensile strength of poly(vinylchloride)/poly(dimethylsiloxane) (PVC/PDMS) polymers and changing the size of the roughening particles. In addition to the examination of resilience data to evaluate degradation patterns, three-dimensional (3D) mapping of the scratches was performed to obtain an insight into how material removal occurs during abrasion. The results can indicate preferential polymer selection (using higher-molecular-weight polymers for PVC) and optimal particle sizes (smaller particles) for maximizing coating resilience. The study, although focused on superhydrophobic materials, demonstrates wide applicability to a range of areas, particularly those focused on the development of high-strength coatings.
Collapse
Affiliation(s)
- Yasmin
A. Mehanna
- Materials
Innovation Factory, Department of Chemistry, University of Liverpool, Liverpool L69 7ZD, U.K.
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Road, London E1 4NS, U.K.
| | - Colin R. Crick
- School
of Engineering and Materials Science, Queen
Mary University of London, Mile End Road, London E1 4NS, U.K.
| |
Collapse
|
34
|
Kowalski M, Salerno-Kochan R, Kamińska I, Cieślak M. Quality and Quantity Assessment of the Water Repellent Properties of Functional Clothing Materials after Washing. MATERIALS 2022; 15:ma15113825. [PMID: 35683123 PMCID: PMC9181528 DOI: 10.3390/ma15113825] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 05/18/2022] [Accepted: 05/24/2022] [Indexed: 01/19/2023]
Abstract
The aim of the research was to evaluate the changes in the surface properties of five functional clothing materials with water-repellent finishes (including PFC-free finish) after 1, 5, and 10 washes with three detergents. A new approach to the interpretation of the water-repellent properties of textile materials is presented, based on two techniques, i.e., the spray test method and contact angle measurements. The results showed that washing materials with hydrophobic finishes can cause significant changes in their properties, which are mainly dependent on the composition and structure of the material, as well as the type of hydrophobic finish. The PFC-free finish is the least resistant to washing. For all materials with PFC finishes, the water repellency depends on the fluorine content on the surface and fabric topography. It was also found that increasing washing frequency resulted in a gradual decrease in water repellency. The loss of water repellency below an acceptable level (Grade 3) occurred after the fifth washing for all materials. Significant differences in the interpretation of the results of the spray test and contact angle measurements were observed. Using these methods separately provides information on the changes in the surface properties of the tested materials; however, their parallel application allows for obtaining complementary data, which is important for the proper interpretation of results.
Collapse
Affiliation(s)
- Mateusz Kowalski
- Department of Non-Food Product Quality and Safety, Cracow University of Economics, Rakowicka 27, 31-510 Cracow, Poland;
- Correspondence:
| | - Renata Salerno-Kochan
- Department of Non-Food Product Quality and Safety, Cracow University of Economics, Rakowicka 27, 31-510 Cracow, Poland;
| | - Irena Kamińska
- Department of Chemical Textile Technologies, Łukasiewicz Research Network—Textile Research Institute, Brzezińska 5/15, 92-103 Lodz, Poland; (I.K.); (M.C.)
| | - Małgorzata Cieślak
- Department of Chemical Textile Technologies, Łukasiewicz Research Network—Textile Research Institute, Brzezińska 5/15, 92-103 Lodz, Poland; (I.K.); (M.C.)
| |
Collapse
|
35
|
Mao T, Xiao R, Liu P, Chen J, Luo J, Luo S, Xie F, Zheng C. Facile fabrication of durable superhydrophobic fabrics by silicon polyurethane membrane for oil/water separation. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2022.05.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
36
|
Chen Y, Zhang J. High-Speed Erosion Behavior of Hydrophobic Micro/Nanostructured Titanium Surfaces. NANOMATERIALS 2022; 12:nano12050880. [PMID: 35269367 PMCID: PMC8912732 DOI: 10.3390/nano12050880] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/27/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022]
Abstract
Ice accretion on aircrafts or their engines can cause serious problems and even accidents. Traditional anti-icing and de-icing systems reduce engine efficiency, which can be improved by the use of hydrophobic/icephobic coatings or surfaces that reduce the amount of bleed air or electric power needed. These hydrophobic/icephobic coatings or surfaces are eroded by high-speed air flow, water droplets, ice crystals, sand, and volcanic ash, resulting in the degradation, material loss, or deterioration of the coating's waterproof and anti-icing properties. Thus, the durability of hydrophobic micro/nanostructured surfaces is a major concern in aircraft applications. However, the mechanism responsible for material loss in hydrophobic micro/nanostructured surfaces resulting from high-speed erosion remains unclear. In this paper, hydrophobic titanium alloy surfaces with cubic pit arrays are fabricated by photoetching and tested using a high-speed sand erosion rig. Under the same impact conditions, the erosion rates of the micro/nanostructured titanium surfaces were similar to those of smooth titanium alloy, implying that the hydrophobic surface fabricated on the bulk material had erosion-resistant capabilities. The material loss mechanisms of the micro/nanostructures under different impact angles were compared, providing useful information for the future optimization of micro/nanostructures with the goal of improved erosion resistance.
Collapse
|
37
|
Versace DL, Breloy L, Palierse E, Coradin T. Contributions of photochemistry to bio-based antibacterial polymer materials. J Mater Chem B 2021; 9:9624-9641. [PMID: 34807217 DOI: 10.1039/d1tb01801a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Surgical site infections constitute a major health concern that may be addressed by conferring antibacterial properties to surgical tools and medical devices via functional coatings. Bio-sourced polymers are particularly well-suited to prepare such coatings as they are usually safe and can exhibit intrinsic antibacterial properties or serve as hosts for bactericidal agents. The goal of this Review is to highlight the unique contribution of photochemistry as a green and mild methodology for the development of such bio-based antibacterial materials. Photo-generation and photo-activation of bactericidal materials are illustrated. Recent efforts and current challenges to optimize the sustainability of the process, improve the safety of the materials and extend these strategies to 3D biomaterials are also emphasized.
Collapse
Affiliation(s)
- Davy-Louis Versace
- Institut de Chimie et des Matériaux Paris-Est (ICMPE, UMR-CNRS 7182), 2-8 rue Henri Dunant, 94320 Thiais, France.
| | - Louise Breloy
- Institut de Chimie et des Matériaux Paris-Est (ICMPE, UMR-CNRS 7182), 2-8 rue Henri Dunant, 94320 Thiais, France.
| | - Estelle Palierse
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, 4 place Jussieu, 75005 Paris, France. .,Sorbonne Université, CNRS, Laboratoire de Réactivité de Surface (LRS), UMR 7197, 4 place Jussieu, 75005 Paris, France
| | - Thibaud Coradin
- Sorbonne Université, CNRS, Laboratoire de Chimie de la Matière Condensée de Paris (LCMCP), UMR 7574, 4 place Jussieu, 75005 Paris, France.
| |
Collapse
|
38
|
Allione M, Limongi T, Marini M, Torre B, Zhang P, Moretti M, Perozziello G, Candeloro P, Napione L, Pirri CF, Di Fabrizio E. Micro/Nanopatterned Superhydrophobic Surfaces Fabrication for Biomolecules and Biomaterials Manipulation and Analysis. MICROMACHINES 2021; 12:1501. [PMID: 34945349 PMCID: PMC8708205 DOI: 10.3390/mi12121501] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 11/19/2021] [Accepted: 11/25/2021] [Indexed: 01/04/2023]
Abstract
Superhydrophobic surfaces display an extraordinary repulsion to water and water-based solutions. This effect emerges from the interplay of intrinsic hydrophobicity of the surface and its morphology. These surfaces have been established for a long time and have been studied for decades. The increasing interest in recent years has been focused towards applications in many different fields and, in particular, biomedical applications. In this paper, we review the progress achieved in the last years in the fabrication of regularly patterned superhydrophobic surfaces in many different materials and their exploitation for the manipulation and characterization of biomaterial, with particular emphasis on the issues affecting the yields of the fabrication processes and the quality of the manufactured devices.
Collapse
Affiliation(s)
- Marco Allione
- Center for Sustainable Future Technologies @POLITO, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Turin, Italy;
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Tania Limongi
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Monica Marini
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Bruno Torre
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Peng Zhang
- Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (P.Z.); (M.M.)
| | - Manola Moretti
- Biological and Environmental Science and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; (P.Z.); (M.M.)
| | - Gerardo Perozziello
- BioNEM Laboratory, Department of Experimental and Clinical Medicine, Campus S. Venuta, Magna Graecia University, Germaneto, Viale Europa, 88100 Catanzaro, Italy; (G.P.); (P.C.)
| | - Patrizio Candeloro
- BioNEM Laboratory, Department of Experimental and Clinical Medicine, Campus S. Venuta, Magna Graecia University, Germaneto, Viale Europa, 88100 Catanzaro, Italy; (G.P.); (P.C.)
| | - Lucia Napione
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Candido Fabrizio Pirri
- Center for Sustainable Future Technologies @POLITO, Istituto Italiano di Tecnologia, Via Livorno 60, 10144 Turin, Italy;
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| | - Enzo Di Fabrizio
- Dipartimento di Scienza Applicata e Tecnologia (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy; (M.M.); (B.T.); (L.N.); (E.D.F.)
| |
Collapse
|
39
|
Statics and dynamics of nanodroplet electrowetting on an isothermally heated nanostructured surface. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
40
|
Wang F, Chang R, Ma R, Tian Y. Eco-friendly and superhydrophobic nano-starch based coatings for self-cleaning application and oil-water separation. Carbohydr Polym 2021; 271:118410. [PMID: 34364553 DOI: 10.1016/j.carbpol.2021.118410] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 07/01/2021] [Accepted: 07/02/2021] [Indexed: 10/20/2022]
Abstract
High-performance nano-based superhydrophobic coatings have attracted tremendous attention in a wide range of sectors. As a biodegradable and low-cost natural polymer, starch nanoparticles (SNPs) exhibit significant potential for use in many advanced materials. However, nano-starch based superhydrophobic coatings have not yet been reported. Herein, SNPs/polydimethylsiloxane composites were applied to fabricate these coatings using an environmentally friendly approach. The coating exhibited superhydrophobic (water contact angle >152.0° and sliding angle <9.0°) and self-cleaning properties owing to the hierarchical micro and nanostructures formed by coralloid SNP aggregates combined with the low surface energy of the PDMS covering. Meanwhile, the strong adhesion of PDMS and chemical bonding of SNPs with PDMS endowed the coatings with mechanical and chemical robustness. The excellent oil-water separation abilities of the coating were also comprehensively confirmed. This coating shows the potential application in the development of eco-friendly self-cleaning materials and oily wastewater treatment.
Collapse
Affiliation(s)
- Fan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Ranran Chang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Rongrong Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China; School of Food Science and Technology, Jiangnan University, Wuxi 214122, PR China.
| |
Collapse
|
41
|
The Impact of the Mechanical Modification of Bacterial Cellulose Films on Selected Quality Parameters. COATINGS 2021. [DOI: 10.3390/coatings11111275] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This study investigated the effect of the homogenization of bacterial cellulose particles and their reintegration into a membrane on the mechanical and physical parameters of the films produced from them in relation to films made of native cellulose (not subjected to the homogenization process). Bacterial cellulose was obtained from a culture of microorganisms forming a conglomerate of bacteria and yeast, called SCOBY. The research has shown that the mechanical modification of bacterial cellulose contributes to an increase in the elongation of the material. Modified polymer films were characterized by a higher Young’s modulus and a much higher breaking force value compared to native cellulose. The mechanical modification of cellulose contributed to an increase in hygroscopicity and changes in water vapor permeability. The obtained results may provide significant information on the methods of modifying bacterial cellulose, depending on its various applications.
Collapse
|
42
|
Abedi Ravan B, Cheraghi A. Fabrication of Superhydrophobic Aluminum Surfaces Using Modified Nanoparticles and Ionizable Surfactants. INTERNATIONAL JOURNAL OF NANOSCIENCE 2021. [DOI: 10.1142/s0219581x21500356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this study, plates of aluminum are made superhydrophobic via wet etching followed by deposition of nanostructure and microstructure. Etched surfaces are coated with modified nanoalumina using an ionizable surfactant. Key parameters governing the hydrophobicity such as type of the etching solvent, type of the surfactant, etching time, nanoparticle size distribution, surfactant concentration and annealing temperature are investigated. Infrared spectroscopy (IR), dynamic light scattering (DLS), scanning electron microscopy (SEM) and water contact angle (WCA) measurements are used to characterize the treated surfaces. A WCA greater than 150∘ is obtained and in order to estimate the efficiency and mechanical durability of the coatings the samples are tested in emulated sea-water. Water jet tests prove the mechanical stability of the samples. Our fabrication method results in good hydrophobicity and self-cleaning behavior of the Al surface and the obtained results may be useful for industrial applications.
Collapse
Affiliation(s)
- Bahram Abedi Ravan
- Faculty of Basic Sciences, Shahid Sattari, Aeronautical University of Science and Technology, Tehran, Iran
| | - Akbar Cheraghi
- Faculty of Basic Sciences, Shahid Sattari, Aeronautical University of Science and Technology, Tehran, Iran
| |
Collapse
|
43
|
Non-accumulative in the environment facile hydrophobic coatings based on branched siloxanes with perfluoroalkyl substituents. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121910] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
44
|
Zeng Q, Zhou H, Huang J, Guo Z. Review on the recent development of durable superhydrophobic materials for practical applications. NANOSCALE 2021; 13:11734-11764. [PMID: 34231625 DOI: 10.1039/d1nr01936h] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Biomimetic superhydrophobic surfaces show great potential in oil-water separation, anti-icing and self-cleaning. However, due to the instability caused by its fragile structure and non-durable superhydrophobicity, it is difficult to apply them in the actual field. Here, by introducing surface wettability and analysing the mechanism of superhydrophobic failure, it is concluded that the reason for the failure of the superhydrophobic surface comes from the transition of the surface energy and the hysteresis of the contact angle (CA). On the basis of this analysis, it is concluded that the principle of designing a durable superhydrophobic surface is to satisfy one of the following three points: improving the binding force between molecules, introducing durable materials and improving chemical durability. On this basis, a variety of preparation methods are proposed, such as assembly method and spray/dip coating method, and the design and preparation of a self-healing surface inspired by nature will also be included in the introduction. Last but not least, the preparation and application of a durable super-hydrophobic surface in oil-water separation, anti-icing and self-cleaning are also introduced in detail. This review reveals the conclusions and prospects of durable superhydrophobic surfaces, and aims to inspire more researchers to invest in this research.
Collapse
Affiliation(s)
- Qinghong Zeng
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
| | | | | | | |
Collapse
|
45
|
He L, Ding L, Waterhouse GIN, Li B, Liu F, Li P. Performance matching between the surface structure of cucumber powdery mildew in different growth stages and the properties of surfactant solution. PEST MANAGEMENT SCIENCE 2021; 77:3538-3546. [PMID: 33837661 DOI: 10.1002/ps.6407] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/02/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Understanding performance matching of pesticide droplets on the surface of cucumber leaves modified by powdery mildew is of practical importance for the agricultural sector. Here, the surface texture and wettability of cucumber leaves covered by powdery mildew were systematically examined using parameters such as micromorphology, physicochemical properties, and liquid droplet contact angle measurements. RESULTS Our results show that powdery mildew growth can be divided into four distinct stages according to the surface texture characteristics of the diseased cucumber leaves. The three-dimensional (3D) surface structures of powdery mildew layers on cucumber leaves had individual characteristics at different mildew growth stages, among which powdery mildew was more easily spread in the last growth stage, and powdery mildew height was greatest in the NO. 2 growth stage (Sa = 425.35 μm). Surface free energy values, static contact angle, and contact angle hysteresis all correlated strongly with the surface characteristics of powdery mildew layers at different growth stages. When the concentration of surfactant reached the critical micelle concentration, the wetting state of AEO-5 solution droplets on the surface of cucumber powdery mildew leaves reached the Wenzel state more easily. The wettability of a droplet on the leaf surface depends on the state of the monomer and micelle in the surfactant solution and the surface characteristics of the powdery mildew-covered leaf. CONCLUSION The 3D structure and relative dielectric constant of powdery mildew-covered leaves influenced surface texture characteristics, which in turn controlled the wetting and matching ability of surfactant droplets on diseased leaves. This work provides valuable new insights into the matching of the structure of powdery mildew-covered plant leaves with the properties of surfactant solutions. © 2021 Society of Chemical Industry.
Collapse
Affiliation(s)
- Lifei He
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, People's Republic of China
- College of Chemistry and Materials Science, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Lei Ding
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Geoffrey I N Waterhouse
- College of Chemistry and Materials Science, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Beixing Li
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Feng Liu
- Shandong Provincial Key Laboratory for Biology of Vegetable Diseases and Insect Pests, College of Plant Protection, Shandong Agricultural University, Tai'an, People's Republic of China
| | - Peiqiang Li
- College of Chemistry and Materials Science, Shandong Agricultural University, Tai'an, People's Republic of China
| |
Collapse
|
46
|
Zhang BX, Wang SL, He X, Yang YR, Wang XD. Dynamic spreading of a water nanodroplet on a nanostructured surface in the presence of an electric field. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
47
|
Zhang J, Li G, Li D, Zhang X, Li Q, Liu Z, Fang Y, Zhang S, Man J. In Vivo Blood-Repellent Performance of a Controllable Facile-Generated Superhydrophobic Surface. ACS APPLIED MATERIALS & INTERFACES 2021; 13:29021-29033. [PMID: 34102844 DOI: 10.1021/acsami.0c21058] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Fabrication of a blood-repellent surface is essential for implantable or interventional medical devices to avoid thrombosis which can induce several serious complications. In this research, a novel micropatterned surface was fabricated via a facile and cost-effective method, and then, the in vitro and in vivo blood-repellent performances of the controllable superhydrophobic surface were systematically evaluated. First, a facile and cost-effective strategy was proposed to fabricate a controllable superhydrophobic surface on a medically pure titanium substrate using an ultraviolet laser process, ultrasonic acid treatment, and chemical modification. Second, the superhydrophobicity, durability, stability, and corrosion resistance of the superhydrophobic surface were confirmed with advanced testing techniques, which display a high contact angle, low adhesion to water and blood, and excellent resistant element precipitation. Third, the platelet-rich plasma and whole blood were applied to evaluate the hemocompatibility of the superhydrophobic surface by means of an in vitro experiment, and no blood cell activation or aggregation was observed on the superhydrophobic surface. Finally, hollow tubes with an inner superhydrophobic surface were implanted into the left carotid artery of rabbits for 2 weeks to verify the biocompatibility in vivo. The superhydrophobic surface could effectively eliminate blood cell adhesion and thrombosis. No obvious inflammation or inordinate proliferation was found by histological analysis. This research provides a facile and cost-effective strategy to prepare a blood-repellent surface, which may have promising applications in implanted biomedical devices.
Collapse
Affiliation(s)
- Jing Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Guiling Li
- School of Medicine, Tsinghua University, Beijing 100084, P. R. China
| | - Donghai Li
- Advanced Medical Research Institute, Shandong University, Jinan 250012, P. R. China
| | - Xinrui Zhang
- Department of Plastic and Reconstructive Surgery, College of Medicine, Seoul National University, Seoul 03080, Republic of Korea
| | - Quhao Li
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Zehui Liu
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Yujie Fang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Song Zhang
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| | - Jia Man
- Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical Engineering, Shandong University, Jinan 250061, P. R. China
- Key National Demonstration Center for Experimental Mechanical Engineering Education, Shandong University, Jinan 250061, P. R. China
| |
Collapse
|
48
|
Ma Y, Zhao F, Wang L, Ding Y, Zhao H, Wang H, Liu J. A stomata-inspired superhydrophobic portable filter system. RSC Adv 2021; 11:18783-18786. [PMID: 35478648 PMCID: PMC9033496 DOI: 10.1039/d1ra03297f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 05/20/2021] [Indexed: 11/21/2022] Open
Abstract
Stomata, specialized functional openings distributed on the leaf surface, are used for plant respiration by allowing gas exchange, i.e., taking in carbon dioxide and releasing oxygen, and for water content regulation. Their function is vital to plant survival. Leaves with different wettability exhibit different stomata densities. In this study, we find that stomata on Pistia stratiotes L. leaves are protected by superhydrophobic setae, which prevent direct contact between the stomata and water in humid environments by suspending water droplets on the top of the setae. Thus, oxygen and carbon dioxide are freely exchanged through the stomata. This structure inspired us to design and develop a mask for filtering solid particles and noxious gas from the atmosphere. The incoming gas is in convective contact with water, achieving a filtering efficiency. The solid particles and potential harmful gas in air are wetted and captured by water, leaving fresh air for healthy breathing. This novel design has potential applications in the treatment of respiratory diseases.
Collapse
Affiliation(s)
- Yuanping Ma
- Department of Stomatology, Beijing Tian Tan Hospital, Capital Medical University Beijing 100070 China
| | - Feng Zhao
- Specialized Robot Engineering and Technological Center of Hainan Province, Hainan Vocational University of Science and Technology Haikou 571126 China
| | - Lei Wang
- Beijing Key Lab of Cryo-biomedical Engineering, Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 China
| | - Yuchen Ding
- Department of Physics and Astrophysics, Rensselaer Polytechnic Institute Troy 12180 USA
| | - Hongbin Zhao
- State Key Laboratory of Advanced Materials for Smart Sensing, General Research Institute for Nonferrous Metals Beijing 100088 China
| | - Hao Wang
- Department of Stomatology, Beijing Tian Tan Hospital, Capital Medical University Beijing 100070 China
| | - Jing Liu
- Beijing Key Lab of Cryo-biomedical Engineering, Key Lab of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences Beijing 100190 China .,Department of Biomedical Engineering, School of Medicine, Tsinghua University Beijing 100084 China
| |
Collapse
|
49
|
Han T, Kim JH, Kim YD, Ahn DJ, Lim DK. Solution-Based One-Step Preparation of Three-Dimensional Self-Assembled Octadecyl Silica Nanosquare Plate and Microlamella Structures for Superhydrophobic and Icephobic Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5886-5894. [PMID: 33956457 DOI: 10.1021/acs.langmuir.1c00356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Icephobic surfaces have gained immense attention owing to their significant roles in decreasing the energy consumption of refrigerators and in improving safety issues by preventing the formation of ice on them. Superhydrophobic surfaces incorporating micro- or nanoscale roughness and hydrophobic functional groups have been shown to prevent ice accumulation. Herein, we report a simple, low-cost, and solution-based one-step process for the production of superhydrophobic surfaces with three-dimensional (3D) self-assembled structures. The controlled hydrolysis and polycondensation of n-octadecyltrichlorosilane (OTS-Cl) in an acetone solution produced a highly uniform superhydrophobic surface on various substrates such as glass, metals, and polymers without the limitation of the surface curvature structure. The as-prepared 3D self-assembled surface exhibited a very high contact angle of 161.7° and a low contact hysteresis of 1.47°. The solvent type, H2O content in acetone, and carbon chain length of the silane compound were critical in the formation of self-assembled nanostructures. The thickness of the superhydrophobic 3D self-assembled structure could be varied by controlling the surface properties of the glass substrate. In addition, a novel octadecyl silica nanosquare plate structure was formed as an intermediate for the microlamella structure. The water drop impact experiments on the 3D self-assembled superhydrophobic glass substrates at low temperatures (T < -25 °C) showed that the as-prepared superhydrophobic glass possessed a high impalement threshold for water contact, resulting in excellent and stable icephobic properties. The preparation method proposed in this study is scalable and can be used on a flat glass surface or in a glass vial inside a glass tube. Moreover, it can be applied to various substrates such as metals and polyurethane surfaces with curvature. Therefore, the solution-based self-assembly method proposed in this study is a promising approach to produce superhydrophobic and icephobic surfaces on a wide range of substrates regardless of their structure and properties.
Collapse
Affiliation(s)
- Taejun Han
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Jung Hoon Kim
- Materials & Devices Advanced Research Institute LG Electronics, Bldg W1, 10, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, Republic of Korea
| | - Yong Duk Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dong June Ahn
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| | - Dong-Kwon Lim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul 02841, Republic of Korea
| |
Collapse
|
50
|
Liu X, Sun P, Qu G, Jing J, Zhang T, Shi H, Zhao Y. Insight into the characteristics and sorption behaviors of aged polystyrene microplastics through three type of accelerated oxidation processes. JOURNAL OF HAZARDOUS MATERIALS 2021; 407:124836. [PMID: 33360187 DOI: 10.1016/j.jhazmat.2020.124836] [Citation(s) in RCA: 88] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 12/02/2020] [Accepted: 12/10/2020] [Indexed: 05/27/2023]
Abstract
Ageing process can significantly alter the structural properties, environmental behaviors and potential ecotoxicity of microplastics (MPs) in water. In this study, the structural properties of aged polystyrene (PS) MPs being exposed to UV/H2O, UV/H2O2 and UV/Cl2 artificially accelerated oxidation processes and related sorption behaviors of bisphenol A (BPA) on those virgin/aged PS were investigated. The surface oxidation and hydrophilicity of aged PS were significantly increased according to infrared spectroscopy (IR) and water contact angle (CA) measurements. The differential scanning calorimetric (DSC) and gel permeation chromatography (GPC) revealed apparent degradation of aged PS especially in their amorphous domain. Obviously deteriorative BPA sorption capacity on aged PS was observed compared with that of virgin PS. The sorption rates of BPA on aged PS were accelerated and sorption of BPA shifted from partition dominant mechanism on virgin PS to the adsorption dominant mechanism through being fitted with the dual-mode sorption model. Besides, ageing in UV/Cl2 system introduces C-Cl groups on the surface of PS which strengthen the combination with BPA through halogen bonding interaction. Salt and dissolved organic matters (DOM) in marine water may increase the BPA sorption on aged MPs due to enhanced polar interaction.
Collapse
Affiliation(s)
- Xuemin Liu
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Peipei Sun
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Guojuan Qu
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Jiana Jing
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Tao Zhang
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China
| | - Huahong Shi
- State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200062, China
| | - Yaping Zhao
- Shanghai Key Laboratory for Urban Ecological Process and Eco-Restoration, Shanghai Engineering Research Center of Biotransformation of Organic Solid Waste, School of Ecological and Environmental Sciences, East China Normal University, Shanghai 200241, China.
| |
Collapse
|