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Balasankar A, Venkatesan R, Jeong DY, Oh TH, Kim SC, Vetcher AA, Ramasundaram S. Facile Fabrication of Hierarchical Structured Anodic Aluminum Oxide Molds for Large-Scale Production of Superhydrophobic Polymer Films. Polymers (Basel) 2024; 16:2344. [PMID: 39204563 PMCID: PMC11359746 DOI: 10.3390/polym16162344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2024] [Revised: 08/08/2024] [Accepted: 08/12/2024] [Indexed: 09/04/2024] Open
Abstract
Anodized aluminum oxide (AAO) molds were used for the production of large-area and inexpensive superhydrophobic polymer films. A controlled anodization methodology was developed for the fabrication of hierarchical micro-nanoporous (HMN) AAO imprint molds (HMN-AAO), where phosphoric acid was used as both an electrolyte and a widening agent. Heat generated upon repetitive high-voltage (195 V) anodization steps is effectively dissipated by establishing a cooling channel. On the HMN-AAO, within the hemispherical micropores, arrays of hexagonal nanopores are formed. The diameter and depth of the micro- and nanopores are 18/8 and 0.3/1.25 µm, respectively. The gradual removal of micropatterns during etching in both the vertical and horizontal directions is crucial for fabricating HMN-AAO with a high aspect ratio. HMN-AAO rendered polycarbonate (PC) and polymethyl methacrylate (PMMA) films with respective water contact angles (WCAs) of 153° and 151°, respectively. The increase in the WCA is 80% for PC (85°) and 89% for PMMA (80°). On the PC and PMMA films, mechanically robust arrays of nanopillars are observed within the hemispherical micropillars. The micro-nanopillars on these polymer films are mechanically robust and durable. Regular nanoporous AAO molds resulted in only a hydrophobic polymer film (WCA = 113-118°). Collectively, the phosphoric acid-based controlled anodization strategy can be effectively utilized for the manufacturing of HMN-AAO molds and roll-to-roll production of durable superhydrophobic surfaces.
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Affiliation(s)
- Athinarayanan Balasankar
- Department of Physics, Gobi Arts and Science College, Gobichettipalayam 638453, India
- Nano-Hybrid Technology Research Center, Korea Electrotechnology Research Institute, 9 Beon-gil, 12 Bulmosan-gil, Seongsan-gu, Changwon 51543, Republic of Korea;
| | - Raja Venkatesan
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea; (T.H.O.); (S.-C.K.)
| | - Dae-Yeong Jeong
- Nano-Hybrid Technology Research Center, Korea Electrotechnology Research Institute, 9 Beon-gil, 12 Bulmosan-gil, Seongsan-gu, Changwon 51543, Republic of Korea;
- Nanoeco. Co., Ltd., Technology Start-up Center, Seongju-dong, 10 Jeongiyigil, Seongsan-ku, Changwon 50062, Republic of Korea
| | - Tae Hwan Oh
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea; (T.H.O.); (S.-C.K.)
| | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea; (T.H.O.); (S.-C.K.)
| | - Alexandre A. Vetcher
- Institute of Biochemical Technology and Nanotechnology, Peoples’ Friendship University of Russia n.a. P. Lumumba (RUDN), 6 Miklukho-Maklaya St., 117198 Moscow, Russia;
| | - Subramaniyan Ramasundaram
- School of Chemical Engineering, Yeungnam University, 280 Daehak-Ro, Gyeongsan 38541, Republic of Korea; (T.H.O.); (S.-C.K.)
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Shoaib M, Jamshaid H, Mishra RK, Ali M, Chandan V, Kolar V, Nazari S, TM A, Jirku P, Muller M, Ivanova TA. Facile-Solution-Processed Silicon Nanofibers Formed on Recycled Cotton Nonwovens as Multifunctional Porous Sustainable Materials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:412. [PMID: 38255580 PMCID: PMC10821013 DOI: 10.3390/ma17020412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 01/11/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024]
Abstract
Limited efficiency, lower durability, moisture absorbance, and pest/fungal/bacterial interaction/growth are the major issues relating to porous nonwovens used for acoustic and thermal insulation in buildings. This research investigated porous nonwoven textiles composed of recycled cotton waste (CW) fibers, with a specific emphasis on the above-mentioned problems using the treatment of silicon coating and formation of nanofibers via facile-solution processing. The findings revealed that the use of an economic and eco-friendly superhydrophobic (contact angle higher than 150°) modification of porous nonwovens with silicon nanofibers significantly enhanced their intrinsic characteristics. Notable improvements in their compactness/density and a substantial change in micro porosity were observed after a nanofiber network was formed on the nonwoven material. This optimized sample exhibited a superior performance in terms of stiffness, surpassing the untreated samples by 25-60%. Additionally, an significant enhancement in tear strength was observed, surpassing the untreated samples with an impressive margin of 70-90%. Moreover, the nanofibrous network of silicon fibers on cotton waste (CW) showed significant augmentation in heat resistance ranging from 7% to 24% and remarkable sound absorption capabilities. In terms of sound absorption, the samples exhibited a performance comparable to the commercial standard material and outperformed the untreated samples by 20% to 35%. Enhancing the micro-roughness of fabric via silicon nanofibers induced an efficient resistance to water absorption and led to the development of inherent self-cleaning characteristics. The antibacterial capabilities observed in the optimized sample were due to its superhydrophobic nature. These characteristics suggest that the proposed nano fiber-treated nonwoven fabric is ideal for multifunctional applications, having features like enhanced moisture resistance, pest resistance, thermal insulation, and sound absorption which are essential for wall covers in housing.
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Affiliation(s)
- Muhammad Shoaib
- School of Engineering and Technology, National Textile University, Faislabad 37610, Pakistan; (M.S.); (H.J.)
| | - Hafsa Jamshaid
- School of Engineering and Technology, National Textile University, Faislabad 37610, Pakistan; (M.S.); (H.J.)
| | - Rajesh Kumar Mishra
- Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (V.C.); (V.K.); (P.J.); (M.M.)
| | - Mumtaz Ali
- School of Engineering and Technology, National Textile University, Faislabad 37610, Pakistan; (M.S.); (H.J.)
| | - Vijay Chandan
- Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (V.C.); (V.K.); (P.J.); (M.M.)
| | - Viktor Kolar
- Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (V.C.); (V.K.); (P.J.); (M.M.)
| | - Shabnam Nazari
- Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (S.N.); (T.A.I.)
| | - Akshat TM
- Department of Machine Design and Mechanism, Faculty of Mechanical Engineering, Technical University of Liberec, 46 117 Liberec, Czech Republic;
| | - Petr Jirku
- Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (V.C.); (V.K.); (P.J.); (M.M.)
| | - Miroslav Muller
- Department of Material Science and Manufacturing Technology, Faculty of Engineering, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (V.C.); (V.K.); (P.J.); (M.M.)
| | - Tatiana Alexiou Ivanova
- Department of Sustainable Technologies, Faculty of Tropical AgriSciences, Czech University of Life Sciences Prague, Kamycka 129, Suchdol, 165 00 Prague, Czech Republic; (S.N.); (T.A.I.)
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Sheraz M, Choi B, Kim J. Enhancing Textile Water Repellency with Octadecyltrichlorosilane (OTS) and Hollow Silica Nanoparticles. Polymers (Basel) 2023; 15:4065. [PMID: 37896310 PMCID: PMC10610727 DOI: 10.3390/polym15204065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Superhydrophobic coatings have attracted substantial attention owing to their potential application in various industries. Conventional textiles used in daily life are prone to staining with water and household liquids, necessitating the development of water-repellent and stain-resistant coatings. In this study, we fabricated a highly water-repellent superhydrophobic PET fabric by using an eco-friendly water-based coating process. Fluorine-free octadecyltrichlorosilane (OTS) solutions with various wt.% of hollow silica (HS) nanoparticles were used to produce a superhydrophobic surface via a facile dip coating method. Our findings revealed that the incorporation of HS nanoparticles substantially increased the water contact angle, with higher concentrations resulting in enhanced water repellency and increased surface roughness. The treated fabrics had a remarkable water contact angle of 152.4° ± 0.8°, demonstrating their superhydrophobic fiber surface. In addition, the durability of these superhydrophobic properties was investigated via a laundry procedure, which showed that the fabrics maintained their water repellency even after 20 laundering cycles. EDX and XRD analyses confirmed that the morphological evaluations did not reveal any substantial structural alterations. Significantly, the fibers maintained their strength and durability throughout the testing, enduring only minor hollow SiO2 nanoparticle loss. This eco-friendly and cost-effective method holds great potential for application in apparel and other industries, offering an effective solution to resist water stains and improve performance in various contexts.
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Affiliation(s)
- Mahshab Sheraz
- Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea; (M.S.); (B.C.)
| | - Byul Choi
- Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea; (M.S.); (B.C.)
| | - Juran Kim
- Advanced Textile R&D Department, Korea Institute of Industrial Technology (KITECH), Ansan 15588, Republic of Korea; (M.S.); (B.C.)
- HYU-KITECH Joint Department, Hanyang University, 222, Wangsimni-ro, Seongdong-gu, Seoul 04763, Republic of Korea
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Zilberfarb A, Cohen G, Amir E. Increasing Functionality of Fish Leather by Chemical Surface Modifications. Polymers (Basel) 2023; 15:3904. [PMID: 37835956 PMCID: PMC10574862 DOI: 10.3390/polym15193904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 09/08/2023] [Accepted: 09/17/2023] [Indexed: 10/15/2023] Open
Abstract
Fish skin is a by-product of the fishing industry, which has become a significant environmental pollutant in recent years. Therefore, there is an emerging interest in developing novel technologies to utilize fish skin as a versatile raw material for the clothing and biomedical industries. Most research on finishing procedures is conducted on cattle leather, and practically very limited information on fish leather finishing is found in the literature. We have developed three functional surface finishing treatments on chromium (CL)- and vegetable (VL)- tanned salmon leather. These treatments include hydrophobic, oil repellent, and electro-conductive ones. The hydroxyl functional groups present on the surface of the leather were covalently grafted with bi-functional aliphatic small molecule, 10-undecenoylchloride (UC), by esterification reaction forming hydrophobic coating. The surface hydrophobicity was further increased via covalent binding of perfluorodecanethiol (PFDT) to the double bond end-groups of the UC-modified leather via thiol-ene click chemistry conditions. The oleophobic coating was successfully developed using synthesized fluorinated silica nanoparticles (FSN) and polyvinylidene fluoride-co-hexafluoropropylene (PVDF-HFP), showing oil repellency with a contact angle of about 100° for soybean oil and n-hexadecane. The electrically conductive coating was realized by the incorporation of conjugated polymer, polyaniline (PANI), via in situ polymerization method. The treated leather exhibited surface resistivity of about 5.2 (Log (Ω/square)), much lower than untreated leather with a resistivity of 11.4 (Log (Ω/square)).
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Affiliation(s)
| | | | - Elizabeth Amir
- Department of Polymer Materials Engineering, Shenkar College of Engineering and Design, Anna Frank 12, Ramat Gan 5252626, Israel
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Zhou J, Duan Y, Wu J, Penkova A, Huang R, Qi W, Su R. Spray-Drying Hydrophobic Cellulose Nanocrystal Coatings with Degradable Biocide Release for Marine Antifouling. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7212-7220. [PMID: 37172413 DOI: 10.1021/acs.langmuir.3c00841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
With increasing awareness about the ecological environment, increased attention has been paid to the application of eco-friendly materials in the field of marine antifouling. In this work, a novel coating having good mechanical strength and static marine antifouling characteristics was fabricated using cellulose nanocrystals (CNCs) as the skeleton material, with in situ growth of SiO2 as the basic superhydrophobic material and introducing hexadecyl trimethyl ammonium bromide (CTAB) and 4-bromo2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile (Econea) into the coating. Due to the high strength and rod structure of CNCs, the coating maintained super-hydrophobicity after 50 cycles of abrasion tests. Moreover, the addition of CTAB during the synthesis of SiO2 led to the hydrolysis and polycondensation of tetraethyl orthosilicate at the micellar interface. Econea was fully mixed with SiO2 nanoparticles, thus slowing down the rate of release of Econea. Meanwhile, the adhesion between the coating and the substrate reached 1.9 MPa, which can meet the application requirements for marine environments. The bioassay using bacteria (Escherichia coli) and diatoms (Nitzschia closterium) showed that the rate of inhibition of the coating on bacteria and diatoms could reach 99 and 90%, respectively, after immersion in artificial seawater for 28 days. This research provides a facile and promising fabricating solution of an eco-friendly CNC-based coating having strong antifouling characteristics suitable for marine environments.
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Affiliation(s)
- Jiaxing Zhou
- Key Laboratory of Ocean Observation Technology of Ministry of Natural Resources, School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Yanyi Duan
- Zhejiang Institute of Tianjin University, Ningbo 315201, Zhejiang, PR China
- State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Jiangjiexing Wu
- Key Laboratory of Ocean Observation Technology of Ministry of Natural Resources, School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China
- Zhejiang Institute of Tianjin University, Ningbo 315201, Zhejiang, PR China
| | - Anastasia Penkova
- St. Petersburg State University, 7/9 Universitetskaya nab., Saint Petersburg 199034, Russia
| | - Renliang Huang
- Key Laboratory of Ocean Observation Technology of Ministry of Natural Resources, School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China
- Zhejiang Institute of Tianjin University, Ningbo 315201, Zhejiang, PR China
| | - Wei Qi
- State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
| | - Rongxin Su
- Key Laboratory of Ocean Observation Technology of Ministry of Natural Resources, School of Marine Science and Technology, Tianjin University, Tianjin 300072, P. R. China
- Zhejiang Institute of Tianjin University, Ningbo 315201, Zhejiang, PR China
- State Key Laboratory of Chemical Engineering, Tianjin Key Laboratory of Membrane Science and Desalination Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, P. R. China
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Guo H, Gao H, Yan A, Lu X, Wu C, Gao L, Zhang J. Treatment to surfactant containing wastewater with membrane distillation membrane with novel sandwich structure. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 867:161195. [PMID: 36581298 DOI: 10.1016/j.scitotenv.2022.161195] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 12/13/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Surfactant containing wastewater widely exists in textile industry, which hardly to be treated by membrane technology due to its high in salinity and wetting potential. In this study, PVDF membrane was modified by constructing a PDMS-SiO2-PDMS "sandwich" structure on top of its surface via coating to achieve resistance to surfactant induced wetting. The "sandwich" layer was optimized based on the membrane performance during membrane distillation. Compared to the pristine PVDF membrane with contact angle of 92°, the water contact angle of the membrane with a "sandwich" layer of 0.44 μm increased to 153°. For the feed contained 0.5 wt% NaCl and 0.25 wt% surfactant, there was no membrane wetting occurred during the experiment period using the membrane with a "sandwich" structure, in comparison to the pristine PVDF membrane being wetted from beginning. For a challenge experiment to the developed membrane lasting for 100 h using a surfactant containing feed, there is no wetting sign observed and the stable flux is 20 kg·m-2·h-1.
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Affiliation(s)
- Hanyu Guo
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Haifu Gao
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - An Yan
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Xiaolong Lu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China
| | - Chunrui Wu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Material Science and Engineering, Tiangong University, Tianjin 300387, PR China.
| | - Li Gao
- ISILC, Victoria University, PO Box 14428, Melbourne, Victoria 8001, Australia; South East Water Corporation, PO Box 2268, Seaford, Victoria 3198, Australia
| | - Jianhua Zhang
- ISILC, Victoria University, PO Box 14428, Melbourne, Victoria 8001, Australia.
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Mohd Aref Y, Othaman R, Anuar FH, Ku Ahmad KZ, Baharum A. Superhydrophobic Modification of Sansevieria trifasciata Natural Fibres: A Promising Reinforcement for Wood Plastic Composites. Polymers (Basel) 2023; 15:polym15030594. [PMID: 36771895 PMCID: PMC9920064 DOI: 10.3390/polym15030594] [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: 11/07/2022] [Revised: 01/12/2023] [Accepted: 01/12/2023] [Indexed: 01/26/2023] Open
Abstract
Sansevieria trifasciata fibre (STF) is a lignocellulosic material which could be utilised for reinforcement composites. Surface modification is often needed to improve the compatibility of hydrophilic STF and hydrophobic resin. In this study, treatments for natural fibres to attain superhydrophobic properties were carried out using silica nanoparticles and fluorosilane. Sansevieria trifasciata fibres (STF) were subjected to treatment by deposition of silica (SiO2) nanoparticles which were prepared by the sol-gel method, then followed by modification with fluorosilane, namely 1H, 1H, 2H, 2H-perfluorooctyltriethoxysilane (PFOTS). The presence of SiO2 nanoparticles and PFOTS were evaluated using Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX). The crystallisation properties and thermal behaviour of STF were studied through X-ray diffraction (XRD) and thermogravimetric (TGA) analysis, respectively. The hydrophobicity of STF was determined by water contact angle (WCA) measurement. The results show that nanoscale SiO2 particles were deposited on the STF surface, and PFOTS were covalently linked to them. The SiO2 nanoparticles provide surface roughness to the fibres, whereas the long-chain fluorine on PFOTS lowered the surface free energy, and their combination in these treatments has successfully modified the STF surface from hydrophilic into superhydrophobic with a WCA of 150° and sliding angle of less than 10°. Altogether, a non-toxic, simple, and promising method of imparting hydrophobicity on natural fibres was developed, opening new opportunities for these fibres as reinforcement for composite parts.
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Affiliation(s)
- Yanzur Mohd Aref
- Department of Chemical Sciences, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
| | - Rizafizah Othaman
- Department of Chemical Sciences, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
- Polymer Research Centre, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
| | - Farah Hannan Anuar
- Department of Chemical Sciences, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
- Polymer Research Centre, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
| | - Ku Zarina Ku Ahmad
- Department of Mechanical Engineering, Universiti Pertahanan Nasional Malaysia, Kem Sungai Besi, Kuala Lumpur 57000, Malaysia
| | - Azizah Baharum
- Department of Chemical Sciences, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
- Polymer Research Centre, Faculty of Science and Technology, University Kebangsaan Malaysia, UKM Bangi, Bangi 43600, Malaysia
- Correspondence:
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Dong H, Zhan Y, Sun A, Chen Y, Chen X. Magnetically responsive and durable super-hydrophobic melamine sponge material. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2023.130933] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Rius-Ayra O, Biserova-Tahchieva A, Llorca-Isern N. Removal of dyes, oils, alcohols, heavy metals and microplastics from water with superhydrophobic materials. CHEMOSPHERE 2023; 311:137148. [PMID: 36351466 DOI: 10.1016/j.chemosphere.2022.137148] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 10/19/2022] [Accepted: 11/03/2022] [Indexed: 06/16/2023]
Abstract
A wide variety of pollutants can be currently found in water that are extremely difficult to remove due to their chemical composition and properties. A lot of effort has been made to tackle this issue that directly affects the environment. In this scenario, superhydrophobic surfaces, which have a water contact angle >150°, have emerged as an innovative technology that could be applied in different ways. Their environmental applications show promise in removing emerging pollutants from water. While the number of publications on superhydrophobic materials has remained largely unchanged since 2019, the number of articles on the environmental applications of superhydrophobic surfaces is still rising, corroborating the interest in this area. Herein, we briefly present the basis of superhydrophobicity and show the different materials that have been used to remove pollutants from water. We have identified five types of emerging pollutants that are efficiently removed by superhydrophobic materials: oils, microplastics, dyes, heavy metals, and ethanol. Finally, the future challenges of these applications are also discussed, considering the state of the art of the environmental applications of superhydrophobic materials.
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Affiliation(s)
- Oriol Rius-Ayra
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain.
| | - Alisiya Biserova-Tahchieva
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
| | - Nuria Llorca-Isern
- CPCM Departament de Ciència dels Materials i Química Física, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1, 08028, Barcelona, Spain
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Ghadhban MY, Rashid KT, A AbdulRazak A, Alsalhy QF. Recent progress and future directions of membranes green polymers for oily wastewater treatment. WATER SCIENCE AND TECHNOLOGY : A JOURNAL OF THE INTERNATIONAL ASSOCIATION ON WATER POLLUTION RESEARCH 2023; 87:57-82. [PMID: 36640024 DOI: 10.2166/wst.2022.409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
The preparation, modification and application of green polymers such as poly-lactic acid (PLA), chitosan (CS), and cellulose acetate (CA) for oily wastewater treatment is summed up in this review. Due to the low environmental pollution, good chemical resistivity, high hydrophobicity, and good capacity for water-oil emulsion separation of the presented polymers, it then highlights the various membrane production methods and their role in producing effective membranes, with a focus on recent advances in improving membrane properties through the addition of various Nano materials. As a result, the hydrophilic/hydrophobic properties that are critical in the oil separation mechanism are highlighted. Finally, it looks at the predictions and challenges in oil/water separation and recovery. These ideas are discussed with a focus on modern production methods and oil separation proficiency.
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Affiliation(s)
- Maryam Y Ghadhban
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Iraq, Al-sinaa Street 52, Baghdad 10066, Iraq E-mail:
| | - Khalid T Rashid
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Iraq, Al-sinaa Street 52, Baghdad 10066, Iraq E-mail:
| | - Adnan A AbdulRazak
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Iraq, Al-sinaa Street 52, Baghdad 10066, Iraq E-mail:
| | - Qusay F Alsalhy
- Membrane Technology Research Unit, Chemical Engineering Department, University of Technology, Iraq, Al-sinaa Street 52, Baghdad 10066, Iraq E-mail:
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Ma C, Li J, Wang J, Bian D, Zhao Y. Self‐healing corrosion‐resistant coatings based on fluorinated alkyl silane microcapsules. POLYM ENG SCI 2022. [DOI: 10.1002/pen.26176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Conghuan Ma
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan University Wuxi Jiangsu China
- School of Mechanical Engineering Jiangnan University Wuxi Jiangsu China
| | - Jiahong Li
- School of Mechanical Engineering Jiangnan University Wuxi Jiangsu China
| | - Jianyu Wang
- School of Mechanical Engineering Jiangnan University Wuxi Jiangsu China
| | - Da Bian
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan University Wuxi Jiangsu China
- School of Mechanical Engineering Jiangnan University Wuxi Jiangsu China
| | - Yongwu Zhao
- Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan University Wuxi Jiangsu China
- School of Mechanical Engineering Jiangnan University Wuxi Jiangsu China
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12
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Hydrophobic metal-organic framework@graphene oxide membrane with enhanced water transport for desalination. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Spraying Fluorinated Silicon Oxide Nanoparticles on CuONPs@CF-PVDF Membrane: A Simple Method to Achieve Superhydrophobic Surfaces and High Flux in Direct Contact Membrane Distillation. Polymers (Basel) 2022; 14:polym14235164. [PMID: 36501558 PMCID: PMC9740881 DOI: 10.3390/polym14235164] [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: 10/21/2022] [Revised: 11/10/2022] [Accepted: 11/23/2022] [Indexed: 11/30/2022] Open
Abstract
Desalinization of seawater can be achieved by membrane distillation techniques (MD). In MD, the membranes should be resistant to fouling, robust for extended operating time, and preferably provide a superhydrophobic surface. In this work, we report the preparation and characterization of a robust and superhydrophobic polyvinylidene fluoride membrane containing fluoroalkyl-capped CuONPs (CuONPs@CF) in the inner and fluorinated capped silicon oxide nanoparticles (SiO2NPs@CF) on its surface. SiO2NPs@CF with a mean diameter of 225 ± 20 nm were prepared by the sol method using 1H,1H,2H,2H-perfluorodecyltriethoxysilane as a capping agent. Surface modification of the membrane was carried out by spraying SiO2NPs@CF (5% wt.) dispersed in a mixture of dimethyl formamide (DMF) and ethanol (EtOH) at different DMF/EtOH % v/v ratios (0, 5, 10, 20, and 50). While ethanol dispersed the nanoparticles in the spraying solution, DMF dissolved the PVDF on the surface and retained the sprayed nanoparticles. According to SEM micrographs and water contact angle measurements, the best results were achieved by depositing the nanoparticles at 10% v/v of DMF/EtOH. Under these conditions, a SiO2NPs covered surface was observed with a water contact angle of 168.5°. The water contact angle was retained after the sonication of the membrane, indicating that the modification was successfully achieved. The membrane with SiO2NPs@CF showed a flux of 14.3 kg(m2·h)-1, 3.4 times higher than the unmodified version. The method presented herein avoids the complicated modification procedure offered by chemical step modification and, due to its simplicity, could be scalable to a commercial membrane.
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14
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Plasma-assisted facile fabrication of omniphobic graphene oxide membrane with anti-wetting property for membrane distillation. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.121207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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15
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He Z, Yang X, Mu L, Wang N, Lan X. A versatile "3M" methodology to obtain superhydrophobic PDMS-based materials for antifouling applications. Front Bioeng Biotechnol 2022; 10:998852. [PMID: 36105602 PMCID: PMC9464926 DOI: 10.3389/fbioe.2022.998852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 08/11/2022] [Indexed: 11/13/2022] Open
Abstract
Fouling, including inorganic, organic, bio-, and composite fouling seriously affects our daily life. To reduce these effects, antifouling strategies including fouling resistance, release, and degrading, have been proposed. Superhydrophobicity, the most widely used characteristic for antifouling that relies on surface wettability, can provide surfaces with antifouling abilities owing to its fouling resistance and/or release effects. PDMS shows valuable and wide applications in many fields, and due to the inherent hydrophobicity, superhydrophobicity can be achieved simply by roughening the surface of pure PDMS or its composites. In this review, we propose a versatile "3M" methodology (materials, methods, and morphologies) to guide the fabrication of superhydrophobic PDMS-based materials for antifouling applications. Regarding materials, pure PDMS, PDMS with nanoparticles, and PDMS with other materials were introduced. The available methods are discussed based on the different materials. Materials based on PDMS with nanoparticles (zero-, one-, two-, and three-dimensional nanoparticles) are discussed systematically as typical examples with different morphologies. Carefully selected materials, methods, and morphologies were reviewed in this paper, which is expected to be a helpful reference for future research on superhydrophobic PDMS-based materials for antifouling applications.
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Affiliation(s)
- Zhoukun He
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
| | - Xiaochen Yang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Linpeng Mu
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Na Wang
- Institute for Advanced Study, Research Center of Composites and Surface and Interface Engineering, Chengdu University, Chengdu, China
- School of Mechanical Engineering, Chengdu University, Chengdu, China
| | - Xiaorong Lan
- Luzhou Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, The Affiliated Stomatological Hospital of Southwest Medical University, Luzhou, China
- Institute of Stomatology, Southwest Medical University, Luzhou, China
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16
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Chobpattana V, Khemthong N, Ngok-Ngam W, Leelawattanachai J, Sodsai T, Kumnorkaew P, Muangnapoh T, Muangnapoh K. Enhanced Solar Reflectance and Superhydrophobic Properties of Functionalized Silica-Coated Copper Phthalocyanine Pigments by the Sol-Gel Process. ACS OMEGA 2021; 6:28671-28677. [PMID: 34746562 PMCID: PMC8567259 DOI: 10.1021/acsomega.1c03333] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/04/2021] [Indexed: 06/13/2023]
Abstract
This research studies the physical, superhydrophobic, and optical properties of functionalized silica-coated copper phthalocyanine (CuPc) pigments. The silica coating was confirmed by the size increase and the atomic ratio of silicon and copper of the coated pigments. Under optimal conditions, the green and blue shades of the pigments were enhanced as indicated by the increase in solar reflectance at 450-540 nm for the CuPc green and 380-520 nm for the CuPc blue. The total near-infrared (NIR) reflectance of the CuPc green and blue also increases by 10.6 and 11.5% compared to the uncoated pigments, respectively. The functionalized silica layer also adds a superhydrophobic property to the pigments. The contact angles of the functionalized pigments with water and oil are 154.4 and 54.3° for the CuPc green pigment and 142.9 and 78.1° for the CuPc blue pigment, respectively. The improved optical and hydrophobic properties make the pigment suitable for outdoor applications as an advanced protection layer to slow down material degradations from heat and humidity.
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Affiliation(s)
- Varistha Chobpattana
- Department
of Materials and Metallurgical Engineering, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand
| | - Nopparat Khemthong
- Department
of Materials and Metallurgical Engineering, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand
| | - Warawut Ngok-Ngam
- Department
of Materials and Metallurgical Engineering, Rajamangala University of Technology Thanyaburi, Pathum Thani 12110, Thailand
| | - Jeerapond Leelawattanachai
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Tippawan Sodsai
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Pisist Kumnorkaew
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Tanyakorn Muangnapoh
- National
Nanotechnology Center (NANOTEC), National
Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
| | - Kullachate Muangnapoh
- National
Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), Pathum Thani 12120, Thailand
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17
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Are telechelic polysiloxanes better than hemi-telechelic for self-cleaning applications? J Colloid Interface Sci 2021; 600:174-186. [PMID: 34015510 DOI: 10.1016/j.jcis.2021.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/22/2022]
Abstract
HYPOTHESIS Polysiloxanes are becoming new trend in self-cleaning (oil- and water-repellent) applications due to their low-cost and environmentally friendly nature. Lower phase separation of polysiloxanes in coating matrix is critical to obtain excellent self-cleaning properties. We hypothesize that telechelic polysiloxanes can bind to coating matrix at both ends and thus will suppress phase separation of polysiloxane as compared to hemi-telechelic analog and thus will offer excellent self-cleaning properties. EXPERIMENT Eight PDMS additives were prepared via the free-radical polymerization of telechelic and hemi-telechelic methacryloxypropyl-based PDMS precursors with methylmethacrylate (MMA) and glycidylmethacrylate (GMA). The compositions of the prepared polysiloxane additives were optimized to obtain excellent self-cleaning performance. FINDINGS Our breakthrough development confirms that telechelic polysiloxanes (PDMS-T) incorporated into epoxy-based anti-smudge coatings outperform hemi-telechelic polysiloxanes (PDMS-HT) by offering excellent repellency against difficult to repel liquids. These breakthrough findings will vertically advance Science and innovations in the self-cleaning field by offering robust guidelines for choosing suitable polysiloxane for self-cleaning applications.
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18
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Chen X, Chen Y, Lv S, Zhang L, Ye R, Ge C, Huang D, Zhang S, Cai Z. New type of borneol-based fluorine-free superhydrophobic antibacterial polymeric coating. Des Monomers Polym 2021; 24:145-155. [PMID: 34104072 PMCID: PMC8118525 DOI: 10.1080/15685551.2021.1924959] [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: 03/08/2021] [Accepted: 04/28/2021] [Indexed: 11/28/2022] Open
Abstract
A new type of superhydrophobic borneol-based polymeric coating has been prepared. The chemical composition of the polymer particles was analyzed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, which showed that the polymer did not contain fluorine, which can effectively avoid the cytotoxic risk of fluorine. By dynamic light scattering, scanning electron microscopy, and static contact angle measurement, the contact angle of the prepared coating gradually increased with increasing diameter of the polymer particles, and a superhydrophobic coating surface was finally obtained. Interestingly, after dissolving the superhydrophobic sample with tetrahydrofuran and making it a normal hydrophobic sample, the antiadhesion performance for E. coli was greatly reduced, and it could not effectively prevent E. coli adhesion. In addition, a long-term antiadhesion study of bacteria was performed. The superhydrophobic borneol-based polymer coating showed long-term resistance to E. coli adhesion. Therefore, the excellent antibacterial properties and cell compatibility mean that this series of polymer materials has great potential in the field of biomedicine.
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Affiliation(s)
- Xin Chen
- Key Laboratory of Science and Technology of EcoTextile, Donghua University, Ministry of Education, Shanghai, China
- Department of Chemistry, Lishui University, Lishui, China
| | - Yuexing Chen
- Department of Chemistry, Lishui University, Lishui, China
| | - Sengwei Lv
- Lishui Ecological Environment Monitoring Center, Lishui Environmental Protection Bureau, Lishui, China
| | - Lingling Zhang
- Department of Chemistry, Lishui University, Lishui, China
| | - Rulan Ye
- Department of Chemistry, Lishui University, Lishui, China
| | - Chuchu Ge
- Department of Chemistry, Lishui University, Lishui, China
| | - Dayun Huang
- Department of Chemistry, Lishui University, Lishui, China
| | - Sihai Zhang
- Department of Chemistry, Lishui University, Lishui, China
| | - Zaisheng Cai
- Key Laboratory of Science and Technology of EcoTextile, Donghua University, Ministry of Education, Shanghai, China
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19
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Structure and Properties of Organofluorosilicon Polymers Based on Organotrialkoxysilanes RFOCH2Si(ORF)3. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02526-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Wang P, Zhang X, Duan W, Teng W, Liu Y, Xie Q. Superhydrophobic Flexible Supercapacitors Formed by Integrating Hydrogel with Functional Carbon Nanomaterials. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202000543] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peng Wang
- School of Energy, Power and Mechanical Engineering, North China Electric Power University Baoding Hebei 071003 China
- Hebei Key Laboratory of Electric Machinery Health Maintenance & Failure Prevention, North China Electric Power University Baoding Hebei 071003 China
| | - Ximin Zhang
- School of Energy, Power and Mechanical Engineering, North China Electric Power University Baoding Hebei 071003 China
- Hebei Key Laboratory of Electric Machinery Health Maintenance & Failure Prevention, North China Electric Power University Baoding Hebei 071003 China
| | - Wei Duan
- School of Energy, Power and Mechanical Engineering, North China Electric Power University Baoding Hebei 071003 China
- Hebei Key Laboratory of Electric Machinery Health Maintenance & Failure Prevention, North China Electric Power University Baoding Hebei 071003 China
| | - Wei Teng
- Advanced Flywheel Energy Storage Technology Research Center of North China Electric Power University, Changping Distinct Beijing 102206 China
| | - Yibing Liu
- Advanced Flywheel Energy Storage Technology Research Center of North China Electric Power University, Changping Distinct Beijing 102206 China
| | - Qing Xie
- School of Electrical and Electronic Engineering, North China Electric Power University Baoding Hebei 071003 China
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21
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Heiman-Burstein D, Dotan A, Dodiuk H, Kenig S. Hybrid Sol-Gel Superhydrophobic Coatings Based on Alkyl Silane-Modified Nanosilica. Polymers (Basel) 2021; 13:polym13040539. [PMID: 33673101 PMCID: PMC7918660 DOI: 10.3390/polym13040539] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2021] [Revised: 02/05/2021] [Accepted: 02/07/2021] [Indexed: 11/16/2022] Open
Abstract
Hybrid sol-gel superhydrophobic coatings based on alkyl silane-modified nanosilica were synthesized and studied. The hybrid coatings were synthesized using the classic Stöber process for producing hydrophilic silica nanoparticles (NPs) modified by the in-situ addition of long-chain alkyl silanes co-precursors in addition to the common tetraethyl orthosilicate (TEOS). It was demonstrated that the long-chain alkyl substituent silane induced a steric hindrance effect, slowing the alkylsilane self-condensation and allowing for the condensation of the TEOS to produce the silica NPs. Hence, following the formation of the silica NPs the alkylsilane reacted with the silica's hydroxyls to yield hybrid alkyl-modified silica NPs having superhydrophobic (SH) attributes. The resulting SH coatings were characterized by contact angle goniometry, demonstrating a more than 150° water contact angle, a water sliding angle of less than 5°, and a transmittance of more than 90%. Confocal microscopy was used to analyze the micro random surface morphology of the SH surface and to indicate the parameters related to superhydrophobicity. It was found that a SH coating could be obtained when the alkyl length exceeded ten carbons, exhibiting a raspberry-like hierarchical morphology.
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22
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TEOS-Based Superhydrophobic Coating for the Protection of Stone-Built Cultural Heritage. COATINGS 2021. [DOI: 10.3390/coatings11020135] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Tetraethyl orthosilicate (TEOS) is extensively used in the conservation of stone-built cultural heritage, which is often subjected to water-induced degradation processes. The goal of this study was to produce and study a TEOS-based material with the ability to repel liquid water. A sol solution of TEOS and 1H,1H,2H,2H-perfluorooctyl triethoxysilane (FAS) was prepared and deposited on marble. The static contact angles (CAs) of water drops on the coated marble surface were >170° and the sliding angles (SA) were <5°, suggesting that superhydrophobicity and water repellency were achieved on the surface of the synthesized TEOS-based coating. FTIR and SEM-EDS were employed to characterize the produced coating. The latter offered good protection against water penetration by capillarity, reducing the breathability of marble only by a small extent and with practically no effect on its aesthetic appearance. The durability of the coating was evaluated through various tests that provided very promising results. Finally, the versatility of the method was demonstrated as the TEOS-based coating was successfully deposited onto glass, brass, wood, silicon, paper and silk, which obtained extreme wetting properties.
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23
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Yang Y, Ali N, Bilal M, Khan A, Ali F, Mao P, Ni L, Gao X, Hong K, Rasool K, Iqbal HM. Robust membranes with tunable functionalities for sustainable oil/water separation. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2020.114701] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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24
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Li W, Wang Y, Feng Y, Wang Q, Xu X, Li G, Dong G, Jing S, Chen E, Fan X, Wang P. A Cost-Effective Method for Preparing Robust and Conductive Superhydrophobic Coatings Based on Asphalt. SCANNING 2020; 2020:5642124. [PMID: 33425091 PMCID: PMC7775183 DOI: 10.1155/2020/5642124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 12/04/2020] [Indexed: 06/12/2023]
Abstract
The wide application of superhydrophobic materials is mainly hindered by the poor mechanical robustness and complicated preparation method. To overcome these problems, we tried to make a combination of hierarchical and self-similar structure by the means of a simple spraying method. By adding nanofiller (carbon nanotube) and microfiller (graphite powder and expanded graphite), the hierarchical structure was constructed. By further doping the fillers in the commercial asphalt uniformly, the self-similar structure was prepared. Based on the aforementioned work, the as-prepared sample could withstand the sandpaper abrasion for 12.00 m under 4.90 kPa. Moreover, this superhydrophobic coating demonstrated good conductivity, superior self-cleaning property, and excellent corrosion resistance. The integration of conductivity with the superhydrophobicity might open new avenues for ground grid applications.
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Affiliation(s)
- Wenbin Li
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Yong Wang
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Yanting Feng
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Qing Wang
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Xuexia Xu
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Guowei Li
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Guozhen Dong
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Shangqian Jing
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
- State Grid Hebei Energy Technology Service Co., Ltd., Shijiazhuang 050021, China
| | - Ersong Chen
- State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China
| | - Xiaoliang Fan
- School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
| | - Peng Wang
- School of Energy, Power and Mechanical Engineering, North China Electric Power University, Baoding 071003, China
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Kumar R, Ahmed M, Bhadrachari G, Al-Missri A, Thomas JP. The effect of chemistry of nanoparticle modifier groups on the PVDF membranes for membrane distillation. Chem Eng Res Des 2020. [DOI: 10.1016/j.cherd.2020.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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26
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Study on Preparation and Properties of Intrinsic Super-Hydrophobic Foamed Magnesium Oxychloride Cement Material. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10228134] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
As we all know, magnesium oxychloride foamed cement material has poor water resistance, leading to a decline in application value. In our research, tetraethylorthosilicate (TEOS) and triethoxy-1H, 1H, 2H, 2H-tridecylfluoro-n-octylsilane (FAS) were pre-cohydrolyzed to prepare the overall super hydrophobic magnesium oxychloride cement (MOC) foamed material, and its structure and performances were systematically studied. The results show that adding organosilane can make it have overall hydrophobicity under the premise of maintaining the compressive strength. Mechanical abrading and chemical corrosion tests show its good engineering durability. The maximum moisture absorption rate dropped by 16.2%, and the quality can be restored to 98.1% of the original quality after dehumidification. All these properties show that the hydrophobic foamed magnesium oxychloride cement has potential engineering application value.
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27
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Esmaeili AR, Mir N, Mohammadi R. A facile, fast, and low-cost method for fabrication of micro/nano-textured superhydrophobic surfaces. J Colloid Interface Sci 2020; 573:317-327. [PMID: 32289627 DOI: 10.1016/j.jcis.2020.04.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 04/05/2020] [Accepted: 04/06/2020] [Indexed: 01/19/2023]
Abstract
HYPOTHESIS Alkyl ketene dimer (AKD) is frequently used in paper industry as an inexpensive sizing agent. The formation of a porous structure after curing the solidified AKD for an extra-long time (4-6 days) results in superhydrophobicity. In this study, a facile and low-cost method was utilized to turn the surface of AKD superhydrophobic in a very short period of time. EXPERIMENTS We fabricated superhydrophobic coatings by dipping glass and paper substrates in molten AKD and then treating them with ethanol after solidification. The samples were characterized by X-ray diffraction, Scanning electron microscopy, Fourier transform-infrared spectroscopy, X-ray photoelectron spectroscopy, Confocal laser scanning microscopy, and dynamic contact angle goniometry. FINDINGS The results show that briefly treating the coatings, obtained from isothermally heated AKD melt at 40 °C for 3 min, with ethanol leads to superhydrophobicity with advancing and receding contact angles of 158.7 ± 1.4° and 156.8 ± 0.9°, respectively. By increasing the melt temperature to 70 °C and its heating time to 6 h followed by ethanol treatment, the advancing and receding contact angles increased to 163.7 ± 1.3° and 162.6 ± 1.2°, respectively. This enhancement in superhydrophobicity is due to the formation of porous, entangled irregular micro/nano textures that create air cushions on the surface resulting in droplet state transition from Wenzel to Cassie.
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Affiliation(s)
- Amir R Esmaeili
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Noshin Mir
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA
| | - Reza Mohammadi
- Department of Mechanical and Nuclear Engineering, Virginia Commonwealth University, Richmond, VA 23284, USA.
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28
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Dong S, Wang Z, An L, Li Y, Wang B, Ji H, Wang H. Facile Fabrication of a Superhydrophobic Surface with Robust Micro-/Nanoscale Hierarchical Structures on Titanium Substrate. NANOMATERIALS 2020; 10:nano10081509. [PMID: 32752033 PMCID: PMC7466599 DOI: 10.3390/nano10081509] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 07/30/2020] [Accepted: 07/31/2020] [Indexed: 01/07/2023]
Abstract
A superhydrophobic surface with robust structures on a metallic surface could improve its application in various harsh conditions. Herein, we developed a new strategy to fabricate robust micro-/nanoscale hierarchical structures with electrical discharge machining and electrochemical etching on a titanium substrate. After modification by fluorinated silane, the static water contact angle and slide angle of the surface could reach 162 ± 2° and 4 ± 1°, respectively. The superhydrophobic surfaces showed good corrosion resistance and mechanical stability after scratching with sandpapers. In addition, the superhydrophobic surfaces had good self-cleaning performance even in an acidic environment as well as the potential to be used as guiding tracks in droplet microfluidics and lab-on-a-chip systems. These results are expected to be helpful in designing the surface of liquid float gyroscope parts.
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Affiliation(s)
- Shuliang Dong
- College of Mechanical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian Xincheng, Tangshan 063210, China; (L.A.); (Y.L.); (B.W.); (H.J.)
- Correspondence: (S.D.); (Z.W.); Tel.: +86-0315-8805440 (S.D.); +86-451-8641-3485 (Z.W.)
| | - Zhenlong Wang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;
- Correspondence: (S.D.); (Z.W.); Tel.: +86-0315-8805440 (S.D.); +86-451-8641-3485 (Z.W.)
| | - Libao An
- College of Mechanical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian Xincheng, Tangshan 063210, China; (L.A.); (Y.L.); (B.W.); (H.J.)
| | - Yaogang Li
- College of Mechanical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian Xincheng, Tangshan 063210, China; (L.A.); (Y.L.); (B.W.); (H.J.)
| | - Baozhong Wang
- College of Mechanical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian Xincheng, Tangshan 063210, China; (L.A.); (Y.L.); (B.W.); (H.J.)
| | - Hongchao Ji
- College of Mechanical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian Xincheng, Tangshan 063210, China; (L.A.); (Y.L.); (B.W.); (H.J.)
| | - Han Wang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China;
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Li H, Granados A, Fernández E, Pleixats R, Vallribera A. Anti-inflammatory Cotton Fabrics and Silica Nanoparticles with Potential Topical Medical Applications. ACS APPLIED MATERIALS & INTERFACES 2020; 12:25658-25675. [PMID: 32407065 DOI: 10.1021/acsami.0c06629] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The preparation of functional cotton fabrics and silica nanoparticles by direct covalent linking of nonsteroidal anti-inflammatory drugs (salicylic acid, ibuprofen, and diclofenac) through an amide group is reported. Moreover, the coating of cotton fabrics with silica nanoparticles functionalized with such antiinflamatory agents is found to increase the roughness of the surface, providing hydrophobicity to the modified fabrics. This property is enhanced by the addition of fluorinated alkyl silane in the co-condensation process to form the coating solution. Characterization of the functionalized nanoparticles and cotton textiles is accomplished by microscopic and spectroscopic techniques. The treatment of functionalized nanoparticles and cotton fabrics with model proteases and leukocytes from animal origin results in the in situ release of the drug by the selective enzymatic cleavage of the amide bond. Topical cutaneous applications in wound dressings and cream formulations for the acceleration of wound healing are envisaged.
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Affiliation(s)
- Hao Li
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Faculty of Sciences, Carrer dels Til.lers, UAB Campus, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Albert Granados
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Faculty of Sciences, Carrer dels Til.lers, UAB Campus, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Ester Fernández
- Departament de Biologia Cel·lular, Fisiologia i Immunologia and Institut de Neurociències, Universitat Autònoma de Barcelona, Campus UAB, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Roser Pleixats
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Faculty of Sciences, Carrer dels Til.lers, UAB Campus, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
| | - Adelina Vallribera
- Department of Chemistry and Centro de Innovación en Quı́mica Avanzada (ORFEO-CINQA), Faculty of Sciences, Carrer dels Til.lers, UAB Campus, Universitat Autònoma de Barcelona, 08193 Cerdanyola del Vallès, Barcelona, Spain
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30
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Current Status and Future Prospects of Applying Bioinspired Superhydrophobic Materials for Conservation of Stone Artworks. COATINGS 2020. [DOI: 10.3390/coatings10040353] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The development of innovative materials is one of the most important focus areas in heritage conservation research. Eligible materials can not only protect the physical and chemical integrity of artworks but also preserve their artistic and aesthetic features. Recently, as one of the hot research topics in materials science, biomimetic superhydrophobic materials have gradually attracted the attention of conservation scientists due to their unique properties. In fact, ultra-repellent materials are particularly suitable for hydrophobization treatments on outdoor artworks. Owing to their excellent hydrophobicity, superhydrophobic materials can effectively prevent the absorption and penetration of liquid water as well as the condensation of water vapor, thus greatly relieving water-induced decay phenomena. Moreover, in the presence of liquid water, the superhydrophobic surfaces equipped with a self-cleaning property can clean the dirt and dust deposited spontaneously, thereby restoring the artistic features simultaneously. In the present paper, besides the basic principles of wetting on solid surfaces, materials, and methods reported for preparing bioinspired ultra-repellent materials, the recently proposed materials for art conservation are also introduced and critically reviewed, along with a discussion on the droplet impact and durability of the artificial superhydrophobic surfaces. Lastly, the current status and the problems encountered in practical application are also pointed out, and the focus of future research is presented as well.
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31
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Li X, Shan H, Cao M, Li B. Facile fabrication of omniphobic PVDF composite membrane via a waterborne coating for anti-wetting and anti-fouling membrane distillation. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.117262] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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32
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Madsen KE, Wade KA, Haasch RT, Buchholz DB, Bassett KL, Nicolau BG, Gewirth AA. Origin of Enhanced Cyclability in Covalently Modified LiMn 1.5Ni 0.5O 4 Cathodes. ACS APPLIED MATERIALS & INTERFACES 2019; 11:39890-39901. [PMID: 31577115 DOI: 10.1021/acsami.9b12912] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
High-voltage lithium-ion cathode materials exhibit exceptional energy densities; however, rapid capacity fade during cell cycling prohibits their widespread utilization. Surface modification of cathode-active materials by organic self-assembled monolayers (SAMs) has emerged as an approach to improve the longevity of high-voltage electrodes; however, the surface chemistry at the electrode/electrolyte interphase and its dependence on monolayer structure remains unclear. Herein, we investigate the interplay between monolayer structure, electrochemical performance, and surface chemistry of high-voltage LiMn1.5Ni0.5O4 (LMNO) electrodes by the application of silane-based SAMs of variable length and chemical composition. We demonstrate that the application of both hydrophobic and hydrophilic monolayers results in improved galvanostatic capacity retention relative to unmodified LMNO. The extent of this improvement is tied to the structure of the monolayer with fluorinated alkyl-silanes exhibiting the greatest overall capacity retention, above 96% after 100 charge/discharge cycles. Postmortem surface analysis reveals that the presence of the monolayer enhances the deposition of LiF at the electrode surface during cell cycling and that the total surface concentration correlates with the overall improvements in capacity retention. We propose that the enhanced deposition of highly insulating LiF increases the anodic stability of the interphase, contributing to the improved galvanostatic performance of modified electrodes. Moreover, this work demonstrates that the modification of the electrode surface by the selection of an appropriate monolayer is an effective approach to tune the properties and behavior of the electrode/electrolyte interphase formed during battery operation.
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Affiliation(s)
- Kenneth E Madsen
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Kevin A Wade
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Richard T Haasch
- Frederick Seitz Materials Research Laboratory , University of Illinois at Urbana-Champaign , Urbana , Illinois 61801 , United States
| | - D Bruce Buchholz
- Department of Materials Science and Engineering , Northwestern University , Evanston , Illinois 60208 , United States
| | - Kimberly L Bassett
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Bruno G Nicolau
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
| | - Andrew A Gewirth
- Department of Chemistry , University of Illinois at Urbana-Champaign , 600 South Mathews Avenue , Urbana , Illinois 61801 , United States
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33
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Kollarigowda RH, Bhyrappa HM, Cheng G. Stimulus-Responsive Biopolymeric Surface: Molecular Switches for Oil/Water Separation. ACS APPLIED BIO MATERIALS 2019; 2:4249-4257. [DOI: 10.1021/acsabm.9b00531] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ravichandran H. Kollarigowda
- Department of Chemical & Materials Engineering, Donadeo Innovation Centre for Engineering University of Alberta, 9211-116 Street NW, Edmonton, Alberta T6G 1H9, Canada
| | - Harisha Mysore Bhyrappa
- Department of Organic Chemistry, School of Chemistry, Madurai Kamaraj University, Madurai, Tamil Nadu 625 021, India
| | - Gang Cheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Xiongchu Avenue, Wuhan 430073, PR China
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34
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Self-assembled heteromorphous raspberry-like colloidal particles from Pickering-like emulsion polymerization. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Plasma Treatment and TEOS Modification on Wood Flour Applied to Composite of Polyvinyl Chloride/Wood Flour. ADVANCES IN POLYMER TECHNOLOGY 2019. [DOI: 10.1155/2019/3974347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In this work, the effects of wood flour and tetraethyl orthosilicate (TEOS) content on the fusion time, fusion torque, fusion temperature, and fusion energy of polyvinyl chloride/wood flour (PVC/WF) composites were studied. Plasma-assisted surface treatment of WF before modifying with TEOS to form the silica nanoparticles on the surface of wood flour plays a role as a reinforcement of the phase interaction. This modification was confirmed by X-ray photoelectron spectroscopy (XPS) and field emission scanning electron microscopy (FESEM) techniques. Moreover, BET data showed that specific surface area and volume of plasma treated WF and TEOS modified WF (WS) were considerably improved in comparison with original WF. By increasing WF, a remarkable increase in time, temperature, and energy of mixing process led to the enhancement of fusion torque. In the case of composite using WS, the increase of TEOS content resulted in shorter fusion time, whereas the other fusion characteristics of composites increased. The investigation of mechanical and rheological properties such as Young’s modulus and dynamic storage modulus G′ showed the stiffness of the PVC/WF composites has been significantly improved with increasing wood flour and modifier contents. The research showed an application of nanoparticles in the industrial production of polymer composite materials.
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36
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Friedlander A, Nir S, Reches M, Shemesh M. Preventing Biofilm Formation by Dairy-Associated Bacteria Using Peptide-Coated Surfaces. Front Microbiol 2019; 10:1405. [PMID: 31297098 PMCID: PMC6608603 DOI: 10.3389/fmicb.2019.01405] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Accepted: 06/04/2019] [Indexed: 01/24/2023] Open
Abstract
Biofilm-forming bacteria, which colonize the surfaces of equipment in the dairy industry, may adversely affect the safety and quality of the milk and its products. Despite numerous efforts to combat biofilm formation, there is still no effective technological means to thoroughly solve the biofilm problem in the dairy industry. Here, we introduced peptide-based coating in order to modify the physical properties of the stainless steel surface by affecting its availability for bacterial adhesion. We found that the coated surface displays a notable decrease in the ability of bacterial cells to attach and to subsequently form biofilm by Gram-positive Bacillus licheniformis and Gram-negative Pseudomonas aeruginosa. Furthermore, the coated surface retained its anti-biofilm ability following its exposure to raw milk. Importantly, the modified surface did not affect the milk coagulation process or its nutritious properties and quality. Overall, this anti-biofilm approach may serve as an attractive solution for the dairy industry in its struggle against bacterial contamination.
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Affiliation(s)
- Alon Friedlander
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel
- Institute of Dental Sciences, The Hebrew University-Hadassah, Jerusalem, Israel
| | - Sivan Nir
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Meital Reches
- The Institute of Chemistry and the Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Jerusalem, Israel
| | - Moshe Shemesh
- Department of Food Sciences, Institute for Postharvest Technology and Food Sciences, Agricultural Research Organization, The Volcani Center, Rishon LeZion, Israel
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37
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Katoh I, Tanabe F, Kasai H, Moriishi K, Shimasaki N, Shinohara K, Uchida Y, Koshiba T, Arakawa S, Morimoto M. Potential Risk of Virus Carryover by Fabrics of Personal Protective Gowns. Front Public Health 2019; 7:121. [PMID: 31179258 PMCID: PMC6538680 DOI: 10.3389/fpubh.2019.00121] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2018] [Accepted: 04/30/2019] [Indexed: 11/13/2022] Open
Abstract
Personal protective gowns and coveralls are classified based on barrier efficiency that validates protection from fluid penetration under certain pressures. Materials standardized in this system have been found suitable for emergency medical practices confronting highly contagious diseases. Nevertheless, adhesion of blood, and body fluids from virus-infected patients to the surface of protective clothing still imposes a risk of pathogen transmission in the process of doffing, or undressing. We performed a small-scale experiment to test the possibility of infectious virus carryover on the surface of different fabrics used in commercially available protective gowns. Application of a lentivirus vector that expresses green fluorescent protein allowed easy monitoring of infectious viral loads on fabrics. Results indicate that fabrics of level-3 surgical gowns serve better to reduce virus transmission compared to fabrics of chemical protective clothing with the same or higher barrier efficiency. Analysis of sliding angles provided indexes of fluid repellency, which were inversely related to virus carryover potentials. Droplets of infectious body fluids may easily roll off fabrics with water-repellent finishing. Thus, virus carryover is a measurable risk factor to be considered for better choice of personal protective clothing.
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Affiliation(s)
- Iyoko Katoh
- Oral Health Science Research Center, Kanagawa Dental University, Yokosuka, Japan
| | | | - Hirotake Kasai
- Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Kohji Moriishi
- Faculty of Medicine, University of Yamanashi, Chuo, Japan
| | - Noriko Shimasaki
- Influenza Virus Research Center, National Institute of Infectious Diseases, Tokyo, Japan
| | - Katsuaki Shinohara
- Division of Biosafety Control and Research, National Institute of Infectious Diseases, Tokyo, Japan
| | - Yukiko Uchida
- Faculty of Health and Welfare, Takasaki University of Health and Welfare, Takasaki, Japan
| | - Tomoko Koshiba
- Faculty of Fashion Science, Bunka Gakuen University, Tokyo, Japan
| | | | - Michiko Morimoto
- Faculty of Health and Welfare Science, Okayama Prefectural University, Soja, Japan
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38
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Zheng H, Pan M, Wen J, Yuan J, Zhu L, Yu H. Robust, Transparent, and Superhydrophobic Coating Fabricated with Waterborne Polyurethane and Inorganic Nanoparticle Composites. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.9b00052] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Hao Zheng
- Institute of Polymer Science and Engineering, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Mingwang Pan
- Institute of Polymer Science and Engineering, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Jie Wen
- Institute of Polymer Science and Engineering, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Jinfeng Yuan
- Institute of Polymer Science and Engineering, School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, People’s Republic of China
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Haifeng Yu
- Department of Material Science and Engineering, College of Engineering and Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing 100871, People’s Republic of China
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39
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Huang J, Lyu S, Chen Z, Wang S, Fu F. A facile method for fabricating robust cellulose nanocrystal/SiO2 superhydrophobic coatings. J Colloid Interface Sci 2019; 536:349-362. [DOI: 10.1016/j.jcis.2018.10.045] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Revised: 10/16/2018] [Accepted: 10/17/2018] [Indexed: 01/19/2023]
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40
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Jiang C, Liu W, Sun Y, Liu C, Yang M, Wang Z. Fabrication of durable superhydrophobic and superoleophilic cotton fabric with fluorinated silica sol via sol-gel process. J Appl Polym Sci 2018. [DOI: 10.1002/app.47005] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- C. Jiang
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - W. Liu
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
| | - Y. Sun
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - C. Liu
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - M. Yang
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- University of Chinese Academy of Sciences; Beijing 100049 China
| | - Z. Wang
- Guangzhou Institute of Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
- Key Laboratory of Cellulose and Lignocellulosics Chemistry; Chinese Academy of Sciences; Guangzhou 510650 China
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41
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Wang Y, Song S, Yuan J, Zhu L, Pan M, Liu G. Architecture and Performance of Raspberry-like Colloidal Particle Clusters via Self-Assembly of in Situ Generated Janus Particles. Ind Eng Chem Res 2018. [DOI: 10.1021/acs.iecr.8b00937] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yajiao Wang
- Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Shaofeng Song
- Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Jinfeng Yuan
- Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Lei Zhu
- Department of Macromolecular Science and Engineering, Case Western Reserve University, Cleveland, Ohio 44106-7202, United States
| | - Mingwang Pan
- Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China
| | - Gang Liu
- Institute of Polymer Science and Engineering, Hebei University of Technology, Tianjin 300130, PR China
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42
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Svirinovsky A, Perelshtein I, Natan M, Banin E, Gedanken A. Imparting superhydrophobic and biocidal functionalities to a polymeric substrate by the sonochemical method. ULTRASONICS SONOCHEMISTRY 2018; 44:398-403. [PMID: 29680626 DOI: 10.1016/j.ultsonch.2018.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2017] [Revised: 01/22/2018] [Accepted: 02/05/2018] [Indexed: 06/08/2023]
Abstract
Multifunctional substrates with superhydrophobic and biocidal properties are gaining interest for a wide range of applications; however, the production of such surfaces remains challenging. Here, the sonochemical method is utilized to impart superhydrophobicity and antimicrobial properties to a polyethylene (PE) sheet. This is achieved by sonochemically depositing nanoparticles (NPs) of a hydrophobic fluoro-polymer (FP) on the PE sheets. The polymer is a flexible, transparent fluoroplastic composed of tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride in the form of a powder. The NPs of polymers are generated and deposited on the surface of the PE using ultrasound irradiation. Optimizing the process results in a homogeneous distribution of 110-200 nm of NPs on the PE surface. The coated surface displays a water-contact angle of 160°, indicating excellent superhydrophobicity. This superhydrophobic surface shows high stability under outdoor conditions for two months, which is essential for various applications. In addition, metal-oxide nanoparticles (CuO or ZnO NPs) were integrated into the polymer coating to achieve antibacterial properties and increase the surface roughness. The metal oxides were also deposited sonochemically. The antibacterial activity of the FP@ZnO and FP@CuO PE composites was tested against the bacterium Staphylococcus aureus, and the results show that the FP@CuO PE can effectively eradicate the bacteria. This study highlights the feasibility of using the sonochemical method to deposit two separate functions, opening up new possibilities for producing "smart" novel surfaces.
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Affiliation(s)
- Asya Svirinovsky
- Department of Chemistry and the Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Ilana Perelshtein
- Department of Chemistry and the Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Michal Natan
- The Mina and Everard Goodman Faculty of Life Sciences and the Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Ehud Banin
- The Mina and Everard Goodman Faculty of Life Sciences and the Institute for Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Aharon Gedanken
- Department of Chemistry and the Institute for Nanotechnology and Advanced Materials (BINA), Bar-Ilan University, Ramat Gan 5290002, Israel.
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43
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The Synthesis and Morphology of a Perfluoroalkyl Oligosiloxane@SiO2 Resin and Its Performance in Anti-Fingerprint Coating. COATINGS 2018. [DOI: 10.3390/coatings8030100] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In order to improve the hydro- and oleo-phobic properties of anti-fingerprint coating, novel oligosiloxane intermediate bearing perfluorodecyl/octyl and triethoxy silylethylene groups were synthesized; then, a series of nano-hybrid perfluoroalkyl oligosiloxane resins (FSi@SiO2) were synthesized using the hydrolysis and condensation of FVPS with tetraethylorthosilicate. The chemical structure, morphology, and performance of FSi@SiO2 were investigated. The results indicate that the FSi@SiO2 is a nano hybrid fluorinated polysiloxane resin with mean particle sizes of 200–400 nm. And under nanoparticles and perfluoroalkyl groups bonded in the resin, FSi@SiO2 not only showed a micro rough morphology in atomic force microscopy observation but also could provide the treated substrates with excellent hydro- and oleo-phobicity. As a result, the water and oil contact angles reached 120.3° and 87.5° on the treated glass, respectively; meanwhile, fingerprints were easily cleaned without any stains.
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44
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Surface chemical characterization of deactivated low-level mercury catalysts for acetylene hydrochlorination. Chin J Chem Eng 2018. [DOI: 10.1016/j.cjche.2017.07.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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45
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Pang R, Zhang K. Fabrication of hydrophobic fluorinated silica-polyamide thin film nanocomposite reverse osmosis membranes with dramatically improved salt rejection. J Colloid Interface Sci 2018; 510:127-132. [DOI: 10.1016/j.jcis.2017.09.062] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 09/09/2017] [Accepted: 09/14/2017] [Indexed: 10/18/2022]
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46
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Heale F, Page K, Wixey JS, Taylor P, Parkin IP, Carmalt CJ. Inexpensive and non-toxic water repellent coatings comprising SiO2 nanoparticles and long chain fatty acids. RSC Adv 2018; 8:27064-27072. [PMID: 35539968 PMCID: PMC9083288 DOI: 10.1039/c8ra04707c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Accepted: 07/17/2018] [Indexed: 11/21/2022] Open
Abstract
Special wettability durable coatings, with average water contact angles exceeding 140°, have been fabricated utilising functionalised hydrophobic-SiO2 (H-SiO2) particles embedded in fatty acids. The inexpensive and non-toxic H-SiO2 particles imparted delicate lotus leaf inspired hierarchical surface nano-morphologies while the fatty acid modification afforded a suitable drop in surface energy. Comparison studies were carried out to explore the effects of fatty acid chain length and pipette as opposed to spray coating deposition methods on the coatings hydrophobicity. It was determined that the longest chain length fatty acid coatings showed enhanced hydrophobic properties due to their extended hydrophobic alkyl chain. A pipette deposited suspension containing H-SiO2 nanoparticles and octadecanoic acid generated a coating with the most favourable average water contact and tilting angles of 142 ± 6° and 16 ± 2° respectively. Special wettability durable coatings, with water contact angles exceeding 140°, have been fabricated using inexpensive and non-toxic functionalised hydrophobic-silica nanoparticles embedded in fatty acids.![]()
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Affiliation(s)
| | | | | | | | - Ivan P. Parkin
- Department of Chemistry
- University College London
- London
- UK
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47
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Saboori R, Azin R, Osfouri S, Sabbaghi S, Bahramian A. Wettability alteration of carbonate rocks from strongly liquid-wetting to strongly gas-wetting by fluorine-doped silica coated by fluorosilane. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1388179] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Rahmatallah Saboori
- Chemical Engineering Department, Faculty Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran
| | - Reza Azin
- Petroleum Engineering Department, Faculty Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran
| | - Shahriar Osfouri
- Chemical Engineering Department, Faculty Petroleum, Gas and Petrochemical Engineering, Persian Gulf University, Bushehr, Iran
| | - Samad Sabbaghi
- Nano Chemical Engineering Department, Faculty of Advanced Technologies, Shiraz University, Shiraz, Iran
| | - Alireza Bahramian
- Institute of Petroleum Engineering, University of Tehran, Tehran, Iran
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48
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Zhang K, Han Q, Liu C, Pei Y, Tang L, Zhao L, Wu L. Superhydrophobic and Superparamagnetic Composite Coatings: A Comparative Study on Dual-Sized Functional Magnetite Nanoparticles/Silicone Rubber. J Inorg Organomet Polym Mater 2017. [DOI: 10.1007/s10904-017-0646-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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49
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Kollarigowda RH, Abraham S, Montemagno CD. Antifouling Cellulose Hybrid Biomembrane for Effective Oil/Water Separation. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29812-29819. [PMID: 28796485 DOI: 10.1021/acsami.7b09087] [Citation(s) in RCA: 67] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Oil/water separation has been of great interest worldwide because of the increasingly serious environmental pollution caused by the abundant discharge of industrial wastewater, oil spill accidents, and odors. Here, we describe simple and economical superhydrophobic hybrid membranes for effective oil/water separation. Eco-friendly, antifouling membranes were fabricated for oil/water separation, waste particle filtration, the blocking of thiol-based odor materials, etc., by using a cellulose membrane (CM) filter. The CM was modified from its original superhydrophilic nature into a superhydrophobic surface via a reversible addition-fragmentation chain transfer technique. The block copolymer poly{[3-(trimethoxysilyl)propyl acrylate]-block-myrcene} was synthesized using a "grafting-from" approach on the CM. The surface contact angle that we obtained was >160°, and absorption tests of several organic contaminants (oils and solvents) exhibited superior levels of extractive activity and excellent reusability. These properties rendered this membrane a promising surface for oil/water separation. Interestingly, myrcene blocks thiol (through "-ene-" chemistry) contaminants, thereby bestowing a pleasant odor to polluted water by acting as an antifouling material. We exploited the structural properties of cellulose networks and simple chemical manipulations to fabricate an original material that proved to be effective in separating water from organic and nano/microparticulate contaminants. These characteristics allowed our material to effectively separate water from oily/particulate phases as well as embed antifouling materials for water purification, thus making it an appropriate absorber for chemical processes and environmental protection.
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Affiliation(s)
- Ravichandran H Kollarigowda
- Ingenuity Lab , 11421 Saskatchewan Drive Northwest, Edmonton, Alberta, Canada T6G2M9
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta, Canada T6G2V4
| | - Sinoj Abraham
- Ingenuity Lab , 11421 Saskatchewan Drive Northwest, Edmonton, Alberta, Canada T6G2M9
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta, Canada T6G2V4
| | - Carlo D Montemagno
- Ingenuity Lab , 11421 Saskatchewan Drive Northwest, Edmonton, Alberta, Canada T6G2M9
- Department of Chemical and Materials Engineering, University of Alberta , Edmonton, Alberta, Canada T6G2V4
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Hwang GB, Patir A, Allan E, Nair SP, Parkin IP. Superhydrophobic and White Light-Activated Bactericidal Surface through a Simple Coating. ACS APPLIED MATERIALS & INTERFACES 2017; 9:29002-29009. [PMID: 28758725 DOI: 10.1021/acsami.7b05977] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Bacterial adhesion and proliferation on surfaces are a challenge in medical and industrial fields. Here, a simple one-step technique is reported to fabricate self-cleaning and bactericidal surfaces. White, blue, and violet paints were produced using titanium dioxide nanoparticles, 1H,1H,2H,2H-perfluorooctyltriethoxysilane, crystal violet, toluidine Blue O, and ethanol solution. All of the painted surfaces showed superhydrophobicity in air, and even after hexadecane oil contamination, they retained water repellency and self-cleaning properties. In an assay of bacterial adhesion, significant reductions (>99.8%) in the number of adherent bacteria were observed for all the painted surfaces. In bactericidal tests, the painted surfaces not only demonstrated bactericidal activity against Staphylococcus aureus and Escherichia coli in the dark but also induced very potent photosensitization (>4.4 log reduction in the number of viable bacteria on the violet painted surface) under white light illumination. The technique that we developed here is general and can be used on a wide range of substrates such as paper, glass, polymers, and others.
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Affiliation(s)
- Gi Byoung Hwang
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Adnan Patir
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
| | - Elaine Allan
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London , 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Sean P Nair
- Department of Microbial Diseases, UCL Eastman Dental Institute, University College London , 256 Gray's Inn Road, London WC1X 8LD, United Kingdom
| | - Ivan P Parkin
- Materials Chemistry Research Centre, Department of Chemistry, University College London , 20 Gordon Street, London WC1H 0AJ, United Kingdom
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