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Srishti, Kumar A. Sustainable approach to oil recovery from oil spills through superhydrophobic jute fabric. MARINE POLLUTION BULLETIN 2023; 197:115701. [PMID: 37890316 DOI: 10.1016/j.marpolbul.2023.115701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 10/29/2023]
Abstract
Ecosystems suffer from increased oil exploitation and frequent oil spills, which calls for effective, environment-friendly, and economically viable solutions. To address this, abandoned gunny sacks as the concerned jute fabric were superhydrophobically (water contact angle ∼159°) modified, incorporating titanium dioxide (TiO2) nanoparticles and hexadecyltrimethoxysilane (HDTMS), rendering a facile drop casting procedure. The modified superhydrophobic-superoleophilic jute fabric has been identified as a high-performance filter with superior reusability that can separate oil-water mixtures in challenging environmental conditions (including potent acidic, alkaline, highly saline, aqueous, frigid, and blistering water environments) while maintaining high separation efficiency. In continuation, static conditions indulging a batch and continuous oil separation performance and dynamic conditions stimulating turbulence in the oil-water mixture were proficiently carried out, mimicking real-world circumstances. As a result, the modified jute fabric has the advantages of high separation efficiency, stable recyclable properties, and outstanding durability, highlighting its enormous potential for use in practical applications.
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Affiliation(s)
- Srishti
- Department of Chemical Engineering, Indian Institute of Technology (ISM), Dhanbad 826004, Jharkhand, India
| | - Aditya Kumar
- Department of Chemical Engineering, Indian Institute of Technology (ISM), Dhanbad 826004, Jharkhand, India.
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Bai X, Yuan Z, Lu C, Zhan H, Ge W, Li W, Liu Y. Recent advances in superwetting materials for separation of oil/water mixtures. NANOSCALE 2023; 15:5139-5157. [PMID: 36853237 DOI: 10.1039/d2nr07088j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Engineering surfaces or membranes that allow an efficient oil/water separation is highly desired in a wide spectrum of applications ranging from oily wastewater discharge to offshore oil spill accidents. Recent advances in biomimetics, manufacturing, and characterization techniques have led to remarkable progress in the design of various superwetting materials with special wettability. In spite of exciting progress, formulating a strategy robust enough to guide the design and fabrication of separating surfaces remains a daunting challenge. In this review, we first present an overview of the wettability theory to elucidate how to control the surface morphology and chemistry to regulate oil/water separation. Then, parallel approaches are considered for discussing the separation mechanisms according to different oil/water mixtures, and three separation types were identified including filtration, adsorption and other separation types. Finally, perspectives on the challenges and future research directions in this research area are briefly discussed.
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Affiliation(s)
- Xiangge Bai
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Zichao Yuan
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Chenguang Lu
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Haiyang Zhan
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Wenna Ge
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Wenzong Li
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yahua Liu
- Key Laboratory for Precision & Non-traditional Machining Technology of Ministry of Education, Dalian University of Technology, Dalian 116024, P. R. China.
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Wang F, Wu Y, Nestler B. Wetting Effect on Patterned Substrates. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023:e2210745. [PMID: 36779433 DOI: 10.1002/adma.202210745] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 01/01/2023] [Indexed: 05/10/2023]
Abstract
A droplet deposited on a solid substrate leads to the wetting phenomenon. A natural observation is the lotus effect, known for its superhydrophobicity. This special feature is engendered by the structured microstructure of the lotus leaf, namely, surface heterogeneity, as explained by the quintessential Cassie-Wenzel theory (CWT). In this work, recent designs of functional substrates are overviewed based on the CWT via manipulating the contact area between the liquid and the solid substrate as well as the intrinsic Young's contact angle. Moreover, the limitation of the CWT is discussed. When the droplet size is comparable to the surface heterogeneity, anisotropic wetting morphology often appears, which is beyond the scope of the Cassie-Wenzel work. In this case, several recent studies addressing the anisotropic wetting effect on chemically and mechanically patterned substrates are elucidated. Surface designs for anisotropic wetting morphologies are summarized with respect to the shape and the arrangement of the surface heterogeneity, the droplet volume, the deposition position of the droplet, as well as the mean curvature of the surface heterogeneity. A thermodynamic interpretation for the wetting effect and the corresponding open questions are presented at the end.
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Affiliation(s)
- Fei Wang
- Institute for Applied Materials - Microstructure Modelling and Simulation (IAM-MMS), Karlsruhe Institute of Technology (KIT), Strasse am Forum 7, 76131, Karlsruhe, Germany
| | - Yanchen Wu
- Institute for Applied Materials - Microstructure Modelling and Simulation (IAM-MMS), Karlsruhe Institute of Technology (KIT), Strasse am Forum 7, 76131, Karlsruhe, Germany
| | - Britta Nestler
- Institute for Applied Materials - Microstructure Modelling and Simulation (IAM-MMS), Karlsruhe Institute of Technology (KIT), Strasse am Forum 7, 76131, Karlsruhe, Germany
- Institute of Digital Materials Science, Karlsruhe University of Applied Sciences, Moltkestrasse 30, 76133, Karlsruhe, Germany
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Textiles Functionalized with Copper Oxides: A Sustainable Option for Prevention of COVID-19. Polymers (Basel) 2022; 14:polym14153066. [PMID: 35956581 PMCID: PMC9370190 DOI: 10.3390/polym14153066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 07/15/2022] [Accepted: 07/16/2022] [Indexed: 02/01/2023] Open
Abstract
COVID-19 is caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), and healthcare-associated infections (HAIs) represent severe problems in health centers and public areas. Polyester/cotton (PES/CO) blend fabrics have been functionalized with copper oxides on an industrial scale. For functionalization, the impregnation dyeing technique was applied. The functionalized samples were tested virologically against SARS-CoV-2 and human coronavirus (229E) according to ISO 18184-2019 and microbiologically against Escherichia coli (ATCC 25922) bacteria according to ASTM E2149-2013. The results show that the fabric functionalized with copper oxides inactivated both viruses after 30 min of exposure, presenting excellent virucidal activity against 229E and SARS-CoV-2, respectively. Furthermore, its inactivation efficiency for SARS-CoV-2 was 99.93% and 99.96% in 30 min and 60 min exposure, respectively. The fabric inhibited bacterial growth by more than 99% before and after 10 and 20 washes. In conclusion, 265 m of PES/CO fabric (wide 1.7 m) was functionalized in situ on an industrial scale with copper oxide nanoparticles. The functionalized fabric presented virucidal and bactericidal properties against SARS-CoV-2 and Escherichia coli.
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Wu D, Wang T, Hu S, Wu W, Lu B, Huang X, Yu W, Wang M, Wang GG, Zhang J. Solvent-free processing of eco-friendly magnetic and superhydrophobic absorbent from all-plant-based materials for efficient oil and organic solvent sorption. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 800:149558. [PMID: 34391146 DOI: 10.1016/j.scitotenv.2021.149558] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 08/04/2021] [Accepted: 08/05/2021] [Indexed: 06/13/2023]
Abstract
The unique features of bioresources such as cellulose and bio-wax include renewability, biodegradability, low cost, and abundance on Earth. Therefore, their efficient use is essential for a sustainable economy. Herein, we report a facile method for the surface modification of pretreated cotton with a bio-wax emulsion in water and Fe3O4 nanoparticles to fabricate a green, durable, magnetic, and superhydrophobic/superoleophilic absorbent for the sorption of oil and organic solvents. Magnetic superhydrophobic cotton (MSC) was successfully prepared via a simple two-step dip-coating method without using any toxic organic reagents. The as-prepared MSC was used to selectively absorb various types of oils and organic solvents up to approximately 20-50 times its own weight. Furthermore, it exhibited a stable magnetic responsivity and high reusability in oil/water separation cycles. In addition, the removal and collection of the absorbed oil/organic solvents were easily achieved with distillation and a vacuum air pump. Moreover, the as-prepared MSC was used in a heavy oil/water gravity-separation filter system and in the continuous collection of a light oil from water surfaces using a pump. The proposed concept may provide a green and sustainable strategy for fabricating superhydrophobic/superoleophilic materials for efficient sorption of oils and organic solvents.
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Affiliation(s)
- Dong Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Tiansheng Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Shunyou Hu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Wanbao Wu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Beibei Lu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Xiyan Huang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Wen Yu
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Mi Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China
| | - Gui-Gen Wang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, PR China.
| | - Jiaheng Zhang
- School of Materials Science and Engineering, Harbin Institute of Technology, Shenzhen 518055, China; State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Shenzhen 518055, China; Research Centre of Printed Flexible Electronics, Harbin Institute of Technology, Shenzhen 518055, China.
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Multi-functional flame-retardant superhydrophobic ceramic fiber felt: Oil/Water mixture separation and oil mist interception. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127454] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Zhang J, Wang P, Wen H, Raza S, Zhu Z, Huang W, Liang L, Liu C. Polymer brush-grafted cotton with petal-like microstructure as superhydrophobic and self-cleaning adsorbents for oil/water separation. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126548] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Zhang J, Wen H, Wang P, Raza S, Zhu Z, Huang W, Hu H, Liang L, Liu C. Photo-initiated polymer brush grafting and multi-stage assembly of hydrophobic oil-absorbing self-cleaning cotton fabrics for acidic and alkaline environments. J Taiwan Inst Chem Eng 2020. [DOI: 10.1016/j.jtice.2020.11.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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3D Printing of an Oil/Water Mixture Separator with In Situ Demulsification and Separation. Polymers (Basel) 2019; 11:polym11050774. [PMID: 31052425 PMCID: PMC6571658 DOI: 10.3390/polym11050774] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 04/23/2019] [Accepted: 04/23/2019] [Indexed: 01/08/2023] Open
Abstract
Currently, many meshes, membranes, and fabrics with extreme wettability of superhydrophobicity/superoleophilicity, or superhydrophilicity and underwater superoleophobicity are promising candidates for oil/water mixture separation. Nevertheless, a facile yet effective way to design and fabricate porous mesh still remains challenging. In this work, fused deposition modeling (FDM) 3D printing of Fe/polylactic acid (PLA) composites was employed to fabricate superhydrophilic and underwater superoleophobic mesh (S-USM) with hydrogel coatings via the surface polymerization of Fe(II)-mediated redox reaction. In addition, salt of aluminum chloride was incorporated within the hydrogel coating, which was attributed to strengthening the demulsification of oil-in-water emulsions, resulting in efficient separation of oil-in-water mixtures. The S-USM was efficient for a wide range of oil-in-water mixtures, such as dodecane, diesel, vegetable oil, and even crude oil, with a separation efficiency of up to 85%. In this study, the flexible design and fabrication of 3D printing were used for the facile creation of spherical oil skimmers with hydrogel coatings that were capable of removing the floating oil. Most importantly, this work is expected to promote post-treatment processes using 3D printing as a new manufacturing technology and, in this way, a series of devices of specific shape and function will be expanded to satisfy desired requirements and bring great convenience to personal life.
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Wang Q, Xiong J, Chen G, Xinping O, Yu Z, Chen Q, Yu M. Facile Approach to Develop Hierarchical Roughness fiber@SiO 2 Blocks for Superhydrophobic Paper. MATERIALS (BASEL, SWITZERLAND) 2019; 12:E1393. [PMID: 31035671 PMCID: PMC6539994 DOI: 10.3390/ma12091393] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Revised: 04/25/2019] [Accepted: 04/26/2019] [Indexed: 11/16/2022]
Abstract
Papers with nanoscaled surface roughness and hydrophobically modification have been widely used in daily life. However, the relatively complex preparation process, high costs and harmful compounds have largely limited their applications. This research aims to fabricate superhydrophobic papers with low cost and nontoxic materials. The surface of cellulose fibers was initially coated with a film of SiO2 nanoparticles via sol-gel process. After papermaking and subsequent modification with hexadecyltrimethoxysilane through a simple solution-immersion process, the paper showed excellent superhydrophobic properties, with water contact angles (WCA) larger than 150°. Moreover, the prepared paper also showed superior mechanical durability against 10 times of deformation. The whole preparation process was carried out in a mild environment, with no intricate instruments or toxic chemicals, which has the potential of large-scale industrial production and application.
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Affiliation(s)
- Qing Wang
- YUTO Research Institute, Shenzhen YUTO Packaging Technology Co., Ltd., Shenzhen 518000, China.
| | - Jieyi Xiong
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Guangxue Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ouyang Xinping
- School of Chemical and Energy Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Zhaohui Yu
- YUTO Research Institute, Shenzhen YUTO Packaging Technology Co., Ltd., Shenzhen 518000, China.
| | - Qifeng Chen
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Mingguang Yu
- School of Materials Science and Energy Engineering, Foshan University, Foshan 528000, China.
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