1
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Manouchehri M. A comprehensive review on state-of-the-art antifouling super(wetting and anti-wetting) membranes for oily wastewater treatment. Adv Colloid Interface Sci 2024; 323:103073. [PMID: 38160525 DOI: 10.1016/j.cis.2023.103073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/19/2023] [Accepted: 12/20/2023] [Indexed: 01/03/2024]
Abstract
One of the most dangerous types of pollution to the environment is oily wastewater, which is produced from a number of industrial sources and can cause damage to the environment, people, and creatures. To overcome this issue, membrane technology as an advanced method has been considered for treating oily wastewater due to its stability, high removal efficiency, and simplicity in scaling up. Membrane fouling, or the accumulation of oil droplets at or within the membrane pores, compromises the efficiency of membrane separation and water flux. In the last decade, the fabrication of membranes with specific wettability to reduce fouling has received much consideration. The purpose of this article is to offer a literature overview of all fabricated anti-fouling super(wetting and anti-wetting) membranes for applicable membrane processes for the separation of immiscible and emulsified oil/water mixtures. In this review, we first explain membrane fouling and discuss methods for preventing it. Afterwards, in all membrane separation processes, including pressure-driven, gravity-driven, and thermal-driven, membranes based on the form and density of oil are categorized as oil-removing or water-removing with special wettability, and then their wettability modification with different materials is particularly discussed. Finally, the prospect of anti-fouling membrane fabrication in the future is presented.
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Affiliation(s)
- Massoumeh Manouchehri
- Department of Chemical Engineering, South Tehran Branch, Islamic Azad University, Tehran, Iran.
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2
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Guan H, Li R, Lian R, Cui J, Ou M, Liu L, Chen X, Jiao C, Kuang S. A biomimetic design for efficient petrochemical spill disposal: CoFe-PBA modified superhydrophobic melamine sponge with mechanical/chemical durability and low fire risk. JOURNAL OF HAZARDOUS MATERIALS 2023; 459:132041. [PMID: 37487334 DOI: 10.1016/j.jhazmat.2023.132041] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 07/03/2023] [Accepted: 07/09/2023] [Indexed: 07/26/2023]
Abstract
Due to frequent petrochemical spills, environmental pollution and the threat of secondary marine fires have arisen, necessitating an urgent need for petrochemical spill treatment strategies with high-performance oil-water separation capabilities. To address the challenges of poor durability, instability in hydrophobic conditions, and difficulty in absorbing high-viscosity crude oil associated with hydrophobic absorbent materials, the authors of this study took inspiration from the unique micro and nanostructures of springtails' water-repellent skin. We engineered a superhydrophobic melamine sponge using interfacial assembly techniques designated as Si@PBA@PDA@MS. This material demonstrated improved mechanical and chemical durability, enhanced photothermal performance, and reduced fire risk. The metal-organic framework (MOF)-derived cobalt-iron Prussian blue analog (CoFe-PBA) was firmly anchored to the sponge framework by the chelation of cobalt ions using polydopamine (PDA). The results demonstrated that Si@PBA@PDA@MS demonstrated excellent superhydrophobicity (WCA=163.5°) and oil absorption capacity (53.4-97.5 g/g), maintaining high durability even after 20 cycles of absorption-squeezing. Additionally, it could still exhibit excellent mechanical properties, hydrophobic stability, and absorption performance across a wide temperature range (0-100 °C), pH range (1-14), and high compression strength (ε = 80%), with excellent mechanical/chemical durability. Furthermore, Si@PBA@PDA@MS demonstrated remarkable photothermal performance and low fire risk, offering efficient, safe, and sustainable practical value for effective petrochemical spill treatment.
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Affiliation(s)
- Haocun Guan
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Rongjia Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Richeng Lian
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Jiahui Cui
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Mingyu Ou
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Lei Liu
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
| | - Xilei Chen
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Chuanmei Jiao
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China.
| | - Shaoping Kuang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, China
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3
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Voo WX, Chong WC, Teoh HC, Lau WJ, Chan YJ, Chung YT. Facile Preparation of Durable and Eco-Friendly Superhydrophobic Filter with Self-Healing Ability for Efficient Oil/Water Separation. MEMBRANES 2023; 13:793. [PMID: 37755215 PMCID: PMC10534750 DOI: 10.3390/membranes13090793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 08/23/2023] [Accepted: 08/26/2023] [Indexed: 09/28/2023]
Abstract
The superhydrophobic feature is highly desirable for oil/water separation (OWS) operation to achieve excellent separation efficiency. However, using hazardous materials in fabricating superhydrophobic surfaces is always the main concern. Herein, superhydrophobic filters were prepared via an eco-friendly approach by anchoring silica particles (SiO2) onto the cotton fabric surface, followed by surface coating using natural material-myristic acid via a dip coating method. Tetraethyl orthosilicate (TEOS) was used in the synthesis of SiO2 particles from the silica sol. In addition, the impact of the drying temperature on the wettability of the superhydrophobic filter was investigated. Moreover, the pristine cotton fabric and as-prepared superhydrophobic cotton filters were characterised based on Fourier-transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), scanning electron microscopy coupled with energy dispersive X-ray spectroscopy (SEM-EDX) and contact angle (CA) measurement. The superhydrophobic cotton filter was used to perform OWS using an oil-water mixture containing either chloroform, hexane, toluene, xylene or dichloroethane. The separation efficiency of the OWS using the superhydrophobic filter was as high as 99.9%. Moreover, the superhydrophobic fabric filter also demonstrated excellent durability, chemical stability, self-healing ability and reusability.
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Affiliation(s)
- Wei Xin Voo
- Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (W.X.V.); (H.C.T.)
| | - Woon Chan Chong
- Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (W.X.V.); (H.C.T.)
- Centre for Photonics and Advanced Materials Research, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia
| | - Hui Chieh Teoh
- Lee Kong Chian Faculty of Engineering and Science, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia; (W.X.V.); (H.C.T.)
- Centre for Photonics and Advanced Materials Research, Universiti Tunku Abdul Rahman, Sungai Long Campus, Jalan Sungai Long, Cheras, Kajang 43000, Selangor, Malaysia
| | - Woei Jye Lau
- Advanced Membrane Technology Research Centre (AMTEC), Faculty of Chemical and Energy Engineering, Universiti Teknologi Malaysia, Johor Bahru 81310, Johor, Malaysia;
| | - Yi Jing Chan
- Department of Chemical and Environmental Engineering, University of Nottingham Malaysia, Jalan Broga, Semenyih 43500, Selangor, Malaysia;
| | - Ying Tao Chung
- Department of Chemical & Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI University Kuala Lumpur Campus, Jalan Mandarina Damai 1, Cheras, Kuala Lumpur 56000, Malaysia;
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4
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Kao LH, Lin WC, Huang CW, Tsai PS. Fabrication of Robust and Effective Oil/Water Separating Superhydrophobic Textile Coatings. MEMBRANES 2023; 13:401. [PMID: 37103828 PMCID: PMC10146041 DOI: 10.3390/membranes13040401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 03/28/2023] [Accepted: 03/30/2023] [Indexed: 06/19/2023]
Abstract
A superhydrophobic (SH) surface is typically constructed by combining a low-surface-energy substance and a high-roughness microstructure. Although these surfaces have attracted considerable attention for their potential applications in oil/water separation, self-cleaning, and anti-icing devices, fabricating an environmentally friendly superhydrophobic surface that is durable, highly transparent, and mechanically robust is still challenging. Herein, we report a facile painting method to fabricate a new micro/nanostructure containing ethylenediaminetetraacetic acid/poly(dimethylsiloxane)/fluorinated SiO2 (EDTA/PDMS/F-SiO2) coatings on the surface of a textile with two different sizes of SiO2 particles, which have high transmittance (>90%) and mechanical robustness. The different-sized SiO2 particles were employed to construct the rough micro/nanostructure, fluorinated alkyl silanes were employed as low-surface-energy materials, PDMS was used for its heat-durability and wear resistance, and ETDA was used to strengthen the adhesion between the coating and textile. The obtained surfaces showed excellent water repellency, with a water contact angle (WCA) greater than 175° and a sliding angle (SA) of 4°. Furthermore, the coating retained excellent durability and remarkable superhydrophobicity for oil/water separation, abrasion resistance, ultraviolet (UV) light irradiation stability, chemical stability, self-cleaning, and antifouling under various harsh environments.
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Affiliation(s)
- Li-Heng Kao
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807, Taiwan
| | - Wei-Chen Lin
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807, Taiwan
| | - Chao-Wei Huang
- Department of Engineering Science, National Cheng Kung University, Tainan 701, Taiwan
| | - Ping-Szu Tsai
- Department of Chemical and Materials Engineering, National Kaohsiung University of Science and Technology, Kaohsiung 807, Taiwan
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5
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Zheng H, Chen Y, He S, Liu W, Liu N, Guo R, Mo Z. A durable superhydrophobic polyphenylene sulfide composite coating with high corrosion resistance and good self-cleaning ability. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130856] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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6
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Antinate Shilpa S, Kavitha Sri A, Jeen Robert RB, Subbulakshmi MS, Hikku GSO. A review focused on the superhydrophobic fabrics with functional properties. J Appl Polym Sci 2023. [DOI: 10.1002/app.53664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Sagayanathan Antinate Shilpa
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
| | - Annadurai Kavitha Sri
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
| | | | | | - Gnanadhas Sobhin Osannal Hikku
- Medical Bionanotechnology, Faculty of Allied Health Sciences Chettinad Hospital and Research Institute, Chettinad Academy of Research and Education Chennai India
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7
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Li Z, Guo Z. Self-healing system of superhydrophobic surfaces inspired from and beyond nature. NANOSCALE 2023; 15:1493-1512. [PMID: 36601906 DOI: 10.1039/d2nr05952e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Superhydrophobic surfaces show wide prospects in a variety of applications requiring self-cleaning, anti-fog, anti-ice, anti-corrosion and anti-fouling properties, which have attracted the attention of many researchers. However, superhydrophobic surfaces are inevitably affected by chemical corrosion, scratches and wear in practical applications, resulting in the loss of superhydrophobicity. To solve this problem, researchers have developed superhydrophobic surfaces with self-healing properties. In this paper, the research achievements of self-healing superhydrophobic materials in recent years are summarized, and the preparation and repair principle of self-healing superhydrophobic surfaces are introduced from three aspects: surface chemical composition repair, surface roughness repair and double repair. In addition, some multifunctional self-healing superhydrophobic surfaces are introduced, such as conductive, stretchable, antibacterial, etc. Finally, in order to provide a reference for the preparation of widely used long-acting superhydrophobic materials, some existing problems and future development prospects are described in order to attract more researchers' attention and promote the development of this field.
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Affiliation(s)
- Zijie Li
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
| | - Zhiguang Guo
- Hubei Collaborative Innovation Centre for Advanced Organic Chemical Materials and Ministry of Education Key Laboratory for the Green Preparation and Application of Functional Materials, Hubei University, Wuhan 430062, People's Republic of China.
- State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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8
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Zhou H, Niu H, Wang H, Lin T. Self-Healing Superwetting Surfaces, Their Fabrications, and Properties. Chem Rev 2023; 123:663-700. [PMID: 36537354 DOI: 10.1021/acs.chemrev.2c00486] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
The research on superwetting surfaces with a self-healing function against various damages has progressed rapidly in the recent decade. They are expected to be an effective approach to increasing the durability and application robustness of superwetting materials. Various methods and material systems have been developed to prepare self-healing superwetting surfaces, some of which mimic natural superwetting surfaces. However, they still face challenges, such as being workable only for specific damages, external stimulation to trigger the healing process, and poor self-healing ability in the water, marine, or biological systems. There is a lack of fundamental understanding as well. This article comprehensively reviews self-healing superwetting surfaces, including their fabrication strategies, essential rules for materials design, and self-healing properties. Self-healing triggered by different external stimuli is summarized. The potential applications of self-healing superwetting surfaces are highlighted. This article consists of four main sections: (1) the functional surfaces with various superwetting properties, (2) natural self-healing superwetting surfaces (i.e., plants, insects, and creatures) and their healing mechanism, (3) recent research development in various self-healing superwetting surfaces, their preparation, wetting properties in the air or liquid media, and healing mechanism, and (4) the prospects including existing challenges, our views and potential solutions to the challenges, and future research directions.
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Affiliation(s)
- Hua Zhou
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Centre for Eco-textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Haitao Niu
- College of Textiles & Clothing, State Key Laboratory for Biofibers and Eco-textiles, Collaborative Innovation Centre for Eco-textiles of Shandong Province, Qingdao University, Qingdao 266071, China
| | - Hongxia Wang
- Institute for Frontier Materials, Deakin University, Geelong Victoria 3216, Australia.,Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tong Lin
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China.,State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
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9
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Si W, Guo Z. Enhancing the lifespan and durability of superamphiphobic surfaces for potential industrial applications: A review. Adv Colloid Interface Sci 2022; 310:102797. [DOI: 10.1016/j.cis.2022.102797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Revised: 10/14/2022] [Accepted: 10/14/2022] [Indexed: 11/01/2022]
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10
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Anti-wetting surfaces with self-healing property: fabrication strategy and application. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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11
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Robust highly conductive fabric with fluorine-free healable superhydrophobicity for the efficient deicing of outdoor’s equipment. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Chen S, Yang F, Guo Z. Transport and collection of water droplets interacting with bioinspired fibers. Adv Colloid Interface Sci 2022; 309:102779. [DOI: 10.1016/j.cis.2022.102779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2022] [Revised: 08/18/2022] [Accepted: 09/18/2022] [Indexed: 11/15/2022]
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13
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Luo Y, Li Z, Chen Y, Jin T. Esterification process of incorporation CS2 activation and its effect on the properties of hydrophobic modified cotton filter fabric via ARGET-ATRP. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111092] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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14
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Dai M, Liu J, Ji Z, Wang S, Zhao Y, Li F, Guo X, Yuan J. Fabrication of superhydrophobic & catalytic bifunctional MnO2 @ Al2O3 composite ceramic membrane for oxidation of desulfurization waste solution. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2021.128067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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15
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Zhang J, Zhao X, Wei J, Li B, Zhang J. Superhydrophobic Coatings with Photothermal Self-Healing Chemical Composition and Microstructure for Efficient Corrosion Protection of Magnesium Alloy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:13527-13536. [PMID: 34724379 DOI: 10.1021/acs.langmuir.1c02355] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Self-healing superhydrophobic coatings have a wide potential for practical applications by prolonging their lifespan, but still suffer from some shortcomings, for example, difficulty in repairing microstructure damage, limited self-healing cycles, and more importantly the inability to self-heal while in service. Herein, we present the fabrication of superhydrophobic coatings having photothermal self-healing chemical composition and microstructure for the high performance anticorrosion of Mg alloy. The coatings contain a shape-memory polymer (SMP) primer and an upper superhydrophobic coating composed of fluorinated polysiloxane-modified multiwalled carbon nanotubes (PF-POS@MWCNTs). The coatings have good superhydrophobicity, photothermal effect, and anticorrosion performance. The coatings show excellent self-healing performance in response to chemical and microstructure damage, such as rapid self-healing under 1 sun irradiation in 10 min, complete self-healing after serious damage (e.g., 10 damage and self-healing cycles and complex microstructure damage), and even self-healing under natural sunlight in 4 h. Moreover, the self-healed coatings show good corrosion protection for magnesium alloy in the neutral salt spray test. These are because of the combination of the SMP primer with good shape-memory effect and the PF-POS@MWCNTs coating with good superhydrophobicity, photothermal effect, and embedded PF-POS. The coatings are self-healable under natural sunlight while in service and thus may find applications in diverse fields.
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Affiliation(s)
- Jiaojiao Zhang
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, People's Republic of China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Xia Zhao
- Department of Chemical Engineering, College of Petrochemical Engineering, Lanzhou University of Technology, Lanzhou 730050, People's Republic of China
| | - Jinfei Wei
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Bucheng Li
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
| | - Junping Zhang
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
- Center of Eco-Material and Green Chemistry, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, People's Republic of China
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16
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Zheng X, Fei J, Li M, Huang J, Wang N. Sodium citrate‐assisted synthesis of
nano‐manganese
oxide on carbon fiber for enhancing the mechanical and frictional performances of carbon fiber‐reinforced resin matrix composites. J Appl Polym Sci 2021. [DOI: 10.1002/app.50322] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xinhui Zheng
- Key Laboratory for Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an PR China
| | - Jie Fei
- Key Laboratory for Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an PR China
- State Key Laboratory of Solidification Processing Shaanxi Province Key Laboratory of Fiber Reinforced Light Composite Materials, Northwestern Polytechnical University Xi'an PR China
| | - Meng Li
- Key Laboratory for Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an PR China
| | - Jianfeng Huang
- Key Laboratory for Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an PR China
| | - Na Wang
- Key Laboratory for Green Preparation and Functionalization for Inorganic Materials, School of Materials Science and Engineering Shaanxi University of Science and Technology Xi'an PR China
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17
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Zheng W, Huang J, Li S, Ge M, Teng L, Chen Z, Lai Y. Advanced Materials with Special Wettability toward Intelligent Oily Wastewater Remediation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:67-87. [PMID: 33382588 DOI: 10.1021/acsami.0c18794] [Citation(s) in RCA: 81] [Impact Index Per Article: 27.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Clean water resources are essential to our human society. Oil leakage has caused water contamination, which leads to serious shortage of clean water, environmental deterioration, and even increasing number of deaths. It is of great urgency to solve the oil-polluted water problems worldwide. Efficient oil/water separation, especially emulsified oil/water mixture separation, is widely used to mitigate water pollution issues. Recently, advanced materials with special wettability have been employed for oily wastewater remediation. Moreover, by endowing them with various intelligent functions, smart materials can effectively separate complex oil/water mixtures including extremely stable emulsions. In this review, oil/water separation mechanisms and various fabrication methods of special wettability separation materials are summarized. We highlight the special wettable materials with intelligent functions, including photocatalytic, self-healing, and switchable oil/water separation materials, which can achieve self-cleaning, self-healing, and efficient oily wastewater treatment. In each section, the acting mechanisms, fabricating technologies, representative studies, and separation efficiency are briefly introduced. Lastly, the challenges and outlook for oil/water separation based on the special wettability materials are discussed.
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Affiliation(s)
- Weiwei Zheng
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Jianying Huang
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Shuhui Li
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China
| | - Mingzheng Ge
- School of Textile & Clothing, National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Health, Nantong University, Nantong 226019, P. R. China
| | - Lin Teng
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
| | - Zhong Chen
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore
| | - Yuekun Lai
- College of Chemical Engineering, Fuzhou University, Fuzhou 350116, P. R. China
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, Suzhou 215123, P. R. China
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18
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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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19
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Eduok U. New superhydrophobic and self-cleaning zirconia/polydimethylsiloxane nanocomposite coated cotton fabrics. NEW J CHEM 2021. [DOI: 10.1039/d0nj04848h] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Zirconia/polydimethylsiloxane nanocomposite coated fabric demonstrates unique stability with tendencies toward self-cleaning and oil–water separations due to its nanopatterned morphologies and adhering superhydrophobic polysiloxane chemical groups.
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Affiliation(s)
- Ubong Eduok
- College of Engineering
- University of Saskatchewan
- Saskatoon
- Saskatchewan
- Canada
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20
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Cao C, Wang F, Lu M. Superhydrophobic CuO coating fabricated on cotton fabric for oil/water separation and photocatalytic degradation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125033] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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21
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Khan A, Huang K, Sarwar MG, Cheng K, Li Z, Tuhin MO, Rabnawaz M. Self-healing and self-cleaning clear coating. J Colloid Interface Sci 2020; 577:311-318. [PMID: 32497916 DOI: 10.1016/j.jcis.2020.05.073] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2020] [Revised: 05/18/2020] [Accepted: 05/18/2020] [Indexed: 12/13/2022]
Abstract
Coatings exhibiting both self-cleaning and self-healing properties are envisioned for a wide range of applications. Herein we report a simple fabrication approach toward poly(urea-urethane) (PU) coatings having self-healing and self-cleaning properties. The self-cleaning component is a poly(dimethylsiloxane) (PDMS), which is affordable in cost and also has a lower environmental footprint relative to its fluorinated counterpart. The self-healing properties are imparted by dynamic urea bonds of the matrix. The obtained surfaces are evaluated for their anti-smudge properties such as water-, oil- and ink-repellency, as well as optical properties. The self-healing properties of these coatings are evaluated by making scores with a doctor blade and monitoring the healing under different conditions using optical microscopy. The resultant coatings are also investigated for their good mechanical properties. The surface chemical compositions are determined x-ray photoelectron spectroscopy, while atomic force microscopy is used for microstructural analysis of these coatings.
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Affiliation(s)
- Ajmir Khan
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Kun Huang
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Mohammed G Sarwar
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Krystal Cheng
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Zhao Li
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Mohammad O Tuhin
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA
| | - Muhammad Rabnawaz
- School of Packaging, Michigan State University, 448 Wilson Road, East Lansing, MI 48824-1223, USA.
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22
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Lan Y, Wang Y, Zhang H, Shan P, Shi X, Long M. A facile approach to achieve multifunctional polyethylene terephthalate fabrics with durable superhydrophobicity, photocatalysis and self-quenched flame retardance. NEW J CHEM 2020. [DOI: 10.1039/d0nj03259j] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Multifunctional PET fabrics were fabricated through combing layer-by-layer and spray coating methods.
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Affiliation(s)
- Yanrong Lan
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Yingchun Wang
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Han Zhang
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Peng Shan
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
- Institute of Life Science and Green Development
| | - Xiaomeng Shi
- College of Chemistry and Environmental Science
- Hebei University
- Baoding 071002
- China
| | - Mengying Long
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University
- Binhai New City
- China
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23
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Ye H, Chen D, Li N, Xu Q, Li H, He J, Lu J. Durable and Robust Self-Healing Superhydrophobic Co-PDMS@ZIF-8-Coated MWCNT Films for Extremely Efficient Emulsion Separation. ACS APPLIED MATERIALS & INTERFACES 2019; 11:38313-38320. [PMID: 31552730 DOI: 10.1021/acsami.9b13539] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The discharge of large amounts of sewage has caused enormous damage to the environment and human health. There is an urgent need for efficient and environmentally friendly materials to deal with such troubles. Materials with emulsion separation have attracted everyone's attention. In this study, zeolitic imidazolate framework (ZIF)-8- and Co-polydimethylsiloxane (PDMS)-modified multiwalled carbon nanotube films were fabricated. First, the surface of the nanotube films was modified with ZIF-8 by in situ growth, and then a Co-PDMS layer was added by dip coating. The membrane has excellent wettability, and it is superhydrophobic and superoleophilic in air. The separation efficiency of water-in-oil emulsions reaches more than 99.9%, and it has an outstanding separation ability for corrosive emulsions. Moreover, the membrane has an excellent self-healing ability, and it can rapidly heal at normal temperature after being damaged. This makes the film more suitable for practical oily wastewater treatment. We performed related research and propose a possible self-healing mechanism.
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Affiliation(s)
- Hanchen Ye
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Dongyun Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Najun Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Qingfeng Xu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Hua Li
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Jinghui He
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
| | - Jianmei Lu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Suzhou Nano Science and Technology , Soochow University , Suzhou 215123 , China
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24
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25
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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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26
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Baig N, Saleh TA. Superhydrophobic Polypropylene Functionalized with Nanoparticles for Efficient Fast Static and Dynamic Separation of Spilled Oil from Water. GLOBAL CHALLENGES (HOBOKEN, NJ) 2019; 3:1800115. [PMID: 31565391 PMCID: PMC6686158 DOI: 10.1002/gch2.201800115] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 03/17/2019] [Indexed: 05/21/2023]
Abstract
Frequent oil spills not only threaten the ecosystem, but they are also a waste of a valuable source of energy. There is an urgent need to develop materials that can readily remove spilled oil from water bodies and also have the capacity to collect it for energy applications. Herein, a superhydrophobic fiber of functionalized polypropylene is engineered with the help of palmitic acid interaction with incorporated copper oxide nanoparticles. The successful development of functionalized polypropylene is confirmed by Fourier-transform infrared spectroscopy, X-ray photoelectron spectroscopy, and energy-dispersive X-ray spectroscopy. The scanning electron microscopy images reveal that the surface roughness of the polypropylene is enhanced after functionalization. The optimized functionalized polypropylene displays an ultrahydrophobic surface with a water contact angle of 162.42°. The functionalized polyprolyene displays good absorption capacity. It has the capacity to take 30 to 40 times its own weight in oils and nonpolar organic solvents, which makes it useful for small spills. With a flux of 11 204 Lm-2 h-1, functionalized polypropylene is as an ideal material for the dynamic separation of oil spills from water. It also has excellent selectivity towards oil, water rejection, and oil absorption capacity.
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Affiliation(s)
- Nadeem Baig
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
| | - Tawfik A. Saleh
- Chemistry DepartmentKing Fahd University of Petroleum & MineralsDhahran31261Saudi Arabia
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27
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Selim MS, Yang H, El-Safty SA, Fatthallah NA, Shenashen MA, Wang FQ, Huang Y. Superhydrophobic coating of silicone/β–MnO2 nanorod composite for marine antifouling. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.03.026] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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28
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Super-wetting, photoactive TiO2 coating on amino-silane modified PAN nanofiber membranes for high efficient oil-water emulsion separation application. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.02.062] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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29
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Yin X, Yu S, Zhao Y, Liu E, Wang K. A self-healing Ni3S2 superhydrophobic coating with anti-condensation property. J Taiwan Inst Chem Eng 2019. [DOI: 10.1016/j.jtice.2019.03.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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30
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Shen L, Pan Y, Fu H. Fabrication of UV curable coating for super hydrophobic cotton fabrics. POLYM ENG SCI 2019. [DOI: 10.1002/pen.25082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Lixiang Shen
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology; South China University of Technology; Guangzhou People's Republic of China
| | - Ya Pan
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology; South China University of Technology; Guangzhou People's Republic of China
| | - Heqing Fu
- School of Chemistry and Chemical Engineering, Guangdong Provincial Key Lab of Green Chemical Product Technology; South China University of Technology; Guangzhou People's Republic of China
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31
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Foorginezhad S, Zerafat MM. Fabrication of superhydrophobic coatings with self-cleaning properties on cotton fabric based on Octa vinyl polyhedral oligomeric silsesquioxane/polydimethylsiloxane (OV-POSS/PDMS) nanocomposite. J Colloid Interface Sci 2019; 540:78-87. [PMID: 30634061 DOI: 10.1016/j.jcis.2019.01.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 01/02/2019] [Accepted: 01/03/2019] [Indexed: 10/27/2022]
Abstract
HYPOTHESIS Wetting behavior of solid surfaces plays an important role in various industrials and even daily life applications. Controlling the surface wettability through fabricating strongly hydrophilic or hydrophobic properties is achieved by tailoring surface topography and chemical composition. Polyhedral oligomeric silsesquioxanes (POSSs) are a class of hybrid materials with the possibility of hydrophobicity enhancement through simultaneous increase in surface roughness and reduction of surface energy. EXPERIMENTS In this study, octavinyl-POSS (OV-POSS) structures were utilized in fabrication of superhydrophobic cotton fabric. Coating was successfully performed through creating a two-layer topography via spraying method. In brief, surface roughness was enhanced by spraying a base layer of TiO2 sol over the surface followed by applying a nanocomposite layer composed of 0.02 wt% of POSS in polydimethylsiloxane (PDMS). FINDINGS It was observed that, water contact angle (WCA) of pristine and TiO2 coated fabric was enhanced from 0° up to ∼168° using 0.02 wt% OV-POSS/PDMS nanocomposite with a water sliding angle (WSA) of <10°. According to the results, environmentally friendly nature of precursors, high thermal, mechanical and chemical stability, self-cleaning and anti-adhesion propertiesof the as-prepared coating and simple preparation method with no special post-treatment requirement, confirm that the as-prepared coating is perfect candidate for large-scaled applications.
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Affiliation(s)
- Sahar Foorginezhad
- Faculty of Advanced Technologies, Nano-Chemical Engineering Department, Shiraz University, Shiraz 7194684560, Iran
| | - Mohammad Mahdi Zerafat
- Faculty of Advanced Technologies, Nano-Chemical Engineering Department, Shiraz University, Shiraz 7194684560, Iran.
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32
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Yalcinkaya F. Effect of argon plasma treatment on hydrophilic stability of nanofiber webs. J Appl Polym Sci 2018. [DOI: 10.1002/app.46751] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Fatma Yalcinkaya
- Institute of Nanomaterials, Advanced Technology and Innovation; Technical University of Liberec; Studentska 1402/2 46117, Liberec Czech Republic
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33
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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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34
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Yang X, Lang D, Wang Z, Cao J, Wu R, Wang W. Underwater superoleophobic polyurethane-coated mesh with excellent stability for oil/water separation. RSC Adv 2018; 8:39657-39666. [PMID: 35558008 PMCID: PMC9090853 DOI: 10.1039/c8ra07965j] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Accepted: 11/14/2018] [Indexed: 11/23/2022] Open
Abstract
Oil/water separation has been a challenge in chemical engineering for various applications. There are numbers of studies on using coated metal meshes as a filter for oil/water separation. However, water resistance, chemical (such as: acid, base, and fouling) resistance and heat resistance for coating materials need further exploration, especially in terms of the durability of the coating materials. In this study, we synthesized a new coating material, hydrophilic polycarbonate polyurethane (HPCPU). We used HPCPU to chemically modify a steel mesh, and the mesh exhibits superhydrophilic and underwater superoleophobic properties. The HPCPU coated mesh shows excellent capacity for oil/water separation with a separation efficiency higher than 99.99% even after 40 cycles of separation. The coating material also exhibits excellent properties of water resistance, heat resistance, and chemical resistance. Moreover, the HPCPU-coated mesh exhibits a strong durability. For example, the separation efficiency for various oil/water mixtures remains higher than 99.7% after the HPCPU-coated mesh has been soaked in water for 30 days, hot water for 5 days, oils for 5 days, 0.5 M HCl solution, 0.5 M NaOH solution and 0.5 M NaCl solution for 24 hours. Oil/water separation has been a challenge in chemical engineering for various applications.![]()
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Affiliation(s)
- Xianhou Yang
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Daning Lang
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Ziyuan Wang
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Jingjing Cao
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Ronglan Wu
- Key Laboratory of Oil and Gas Fine Chemicals
- College of Chemistry and Chemical Engineering
- Xinjiang University
- Urumqi
- China
| | - Wei Wang
- Department of Chemistry and Center for Pharmacy
- University of Bergen
- Bergen
- Norway
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35
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Xu H, Bao S, Gong L, Ma R, Pan L, Li Y, Zhao J. Superhydrophobic engineering materials provide a rapid and simple route for highly efficient self-driven crude oil spill cleanup. RSC Adv 2018; 8:38363-38369. [PMID: 35559063 PMCID: PMC9089833 DOI: 10.1039/c8ra07913g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 10/24/2018] [Indexed: 11/21/2022] Open
Abstract
Traditional superhydrophobic material use depends on two processes: creating a rough structure on a material surface and modifying the rough surface with low surface energy materials. However, common preparation methods are time-consuming, complex and cost-ineffective. Furthermore, these methods usually rely on chemicals, and evidently that will restrict mass preparation and application of superhydrophobic materials. This study reports a simple polypropylene (PP) solution-based process for producing PP hierarchical structures on commercial copper mesh (low surface energy materials), without modifying the low surface energy materials. The hierarchical structures of copper meshes, surface modified with PP, can be rationally controlled by optimizing the PP concentration. The obtained copper mesh showed contact and rolling off angles of 162° and 7°, respectively. Importantly, no significant performance loss was observed after the superhydrophobic copper meshes were continuously and drastically rinsed with 3.5 wt% NaCl solution, or repeated tearing with an adhesive tape for more than 30 cycles, indicating its good durability. After surface modification with PP particles, the copper mesh exhibits both excellent superhydrophobicity and superoleophilicity. Additionally, the as-prepared copper mesh can self-float on water surface when deformed into a “miniature boat” shape. Meanwhile, self-driven spilled oil cleanup was achieved using a superhydrophobic copper mesh-formed miniature boat. The miniature boat can realize energy conservation as well as high efficiency. The cleanup rate of the boat is as high as 97.1%, demonstrating its great potential in environmental remediation applications. Traditional superhydrophobic material use depends on two processes: creating a rough structure on a material surface and modifying the rough surface with low surface energy materials.![]()
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Affiliation(s)
- Hongbo Xu
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Shulong Bao
- Beijing Institute of Space Mechanics and Electricity
- Beijing
- China
| | - Liuting Gong
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Renping Ma
- Beijing Vocational College of Labour and Social Security
- Beijing
- China
| | - Lei Pan
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
| | - Yao Li
- Center for Composite Material
- Harbin Institute of Technology
- Harbin
- China
| | - Jiupeng Zhao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage
- School of Chemistry and Chemical Engineering
- Harbin Institute of Technology
- Harbin
- China
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