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Qiao A, Huang R, Wu J, Qi W, Su R. Anisotropic cellulose nanocrystalline sponge sheets with ultrahigh water fluxes and oil/water selectivity. Carbohydr Polym 2023; 312:120807. [PMID: 37059539 DOI: 10.1016/j.carbpol.2023.120807] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 02/11/2023] [Accepted: 03/08/2023] [Indexed: 03/14/2023]
Abstract
Oily sewage caused by oil spill accidents has become a severe problem in the last decades. Hence, two-dimensional sheet-like filter materials for oil/water separation have received widespread attention. Porous sponge materials were developed using cellulose nanocrystals (CNCs) as raw materials. They are environmentally friendly and easy to prepare, with high flux and separation efficiency. The 1,2,3,4-butane tetracarboxylic acid cross-linked anisotropic cellulose nanocrystalline sponge sheet (B-CNC) exhibited ultrahigh water fluxes driven by gravity alone, depending on the aligned structure of channels and the rigidity of CNCs. Meanwhile, the sponge gained superhydrophilic/underwater superhydrophobic wettability with an underwater oil contact angle of up to 165.7° due to its ordered micro/nanoscale structure. B-CNC sheets displayed high oil/water selectivity without additional material doping or chemical modification. For oil/water mixtures, high separation fluxes of approximately 100,000 L·m-2·h-1 and separation efficiencies of up to 99.99 % were obtained. For a Tween 80-stabilized toluene-in-water emulsion, the flux reached >50,000 L·m-2·h-1, and the separation efficiency was above 99.7 %. B-CNC sponge sheets showed significantly higher fluxes and separation efficiencies than other bio-based two-dimensional materials. This research provides a facile and straightforward fabrication method of environmental-friendly B-CNC sponges for rapid, selective oil/water separation.
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Affiliation(s)
- Aihua Qiao
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Renliang Huang
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, China
| | - Jiangjiexing Wu
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, 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, China
| | - Rongxin Su
- School of Marine Science and Technology, Tianjin University, Tianjin 300072, China; Zhejiang Institute of Tianjin University, Ningbo, Zhejiang 315201, 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, China.
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2
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Yu L, Zhu Y, Wang L, Zhang J, Zhou J, Fu Y. Influence of
3D
printing process parameters on the tribological properties of acrylic resin. J Appl Polym Sci 2022. [DOI: 10.1002/app.53448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Liang Yu
- School of Mechanical Engineering, Yangzhou University Yangzhou P. R. China
| | - Yanan Zhu
- School of Mechanical Engineering, Yangzhou University Yangzhou P. R. China
| | - Lei Wang
- School of Mechanical Engineering, Yangzhou University Yangzhou P. R. China
| | - Jin Zhang
- School of Mechanical Engineering, Yangzhou University Yangzhou P. R. China
| | - Jiping Zhou
- School of Mechanical Engineering, Yangzhou University Yangzhou P. R. China
| | - Yan Fu
- Xuzhou Ruidi New Materials Technology Co., Ltd. Xuzhou P. R. China
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3
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Mousa HM, Fahmy HS, Ali GAM, Abdelhamid HN, Ateia M. Membranes for Oil/Water Separation: A Review. ADVANCED MATERIALS INTERFACES 2022; 9:10.1002/admi.202200557. [PMID: 37593153 PMCID: PMC10428143 DOI: 10.1002/admi.202200557] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Indexed: 08/19/2023]
Abstract
Recent advancements in separation and membrane technologies have shown a great potential in removing oil from wastewaters effectively. In addition, the capabilities have improved to fabricate membranes with tunable properties in terms of their wettability, permeability, antifouling, and mechanical properties that govern the treatment of oily wastewaters. Herein, authors have critically reviewed the literature on membrane technology for oil/water separation with a specific focus on: 1) membrane properties and characterization, 2) development of various materials (e.g., organic, inorganic, and hybrid membranes, and innovative materials), 3) membranes design (e.g., mixed matrix nanocomposite and multilayers), and 4) membrane fabrication techniques and surface modification techniques. The current challenges and future research directions in materials and fabrication techniques for membrane technology applications in oil/water separation are also highlighted. Thus, this review provides helpful guidance toward finding more effective, practical, and scalable solutions to tackle environmental pollution by oils.
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Affiliation(s)
- Hamouda M Mousa
- Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Hanan S Fahmy
- Mechanical Engineering Department, Faculty of Engineering, South Valley University, Qena 83523, Egypt
| | - Gomaa A M Ali
- Chemistry Department, Faculty of Science, Al-Azhar University, Assiut 71524, Egypt
| | - Hani Nasser Abdelhamid
- Advanced Multifunctional Materials Laboratory, Department of Chemistry, Faculty of Science, Assiut University, Assiut 71515, Egypt
| | - Mohamed Ateia
- United States Environmental Protection Agency, Center for Environmental Solutions & Emergency Response, Cincinnati, OH 45220, USA
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Wu P, Luo Q, Zhang X, He J, Liu C, Jiang W. Universal Rapid Demulsification by Vacuum Suction Using Superamphiphilic and Underliquid Superamphiphobic Polyurethane/Diatomite Composites. ACS APPLIED MATERIALS & INTERFACES 2022; 14:24775-24786. [PMID: 35588149 DOI: 10.1021/acsami.2c03967] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A process for universal rapid demulsification by vacuum suction using an as-prepared superamphiphilic and underliquid superamphiphobic polyurethane (PU)/diatomite composite has been developed and is used to demulsify kerosene-in-water and water-in-kerosene emulsions with and without a surfactant. The results show that the demulsification rate of all the emulsions exceeds 98.5% in long-term operation, with a stable demulsification speed exceeding 0.303 L/m2 min. When a superhydrophobic channel for separation is added, the oil/water separation efficiency exceeds 99.0%, and the final products are qualified oil and water. This attractive universal demulsification capability of PU/diatomite originates from its underliquid superamphiphobicity, which attracts a continuous phase to form a stable liquid film and thus repels dispersed phase droplets, which have a similar interaction with the surface but are much less abundant. The vacuum forces emulsion droplets into the microstructure of the PU/diatomite cake, where they are compressed, coalesce, and finally demulsified. This observed mechanism suggests a promising strategy to avoid the negative effects of oil fouling in demulsification and achieve large-scale universal continuous rapid demulsification.
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Affiliation(s)
- Pan Wu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
| | - Qiuxian Luo
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
| | - Xingyang Zhang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
| | - Jian He
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
| | - Changjun Liu
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
| | - Wei Jiang
- Low-Carbon Technology and Chemical Reaction Engineering Laboratory, School of Chemical Engineering, Sichuan University, Chengdu 610065 P. R. China
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Fijoł N, Abdelhamid HN, Pillai B, Hall SA, Thomas N, Mathew AP. 3D-printed monolithic biofilters based on a polylactic acid (PLA) - hydroxyapatite (HAp) composite for heavy metal removal from an aqueous medium. RSC Adv 2021; 11:32408-32418. [PMID: 35495521 PMCID: PMC9041825 DOI: 10.1039/d1ra05202k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 09/23/2021] [Indexed: 12/18/2022] Open
Abstract
High flux, monolithic water purification filters based on polylactic acid (PLA) functionalised with fish scale extracted hydroxyapatite (HAp) were prepared by solvent-assisted blending and thermally induced phase separation (TIPS), followed by twin-screw extrusion into filaments and processed via three-dimensional (3D) printing. The printed filters with consistent pore geometry and channel interconnectivity as well as homogenous distribution of HAp in the PLA matrix showed adsorption capabilities towards heavy metals i.e. cadmium (Cd) and lead (Pb) with maximum adsorption capacity of 112.1 mg gHAp−1 and 360.5 mg gHAp−1 for the metal salt of Pb and Cd, respectively. The adsorption was found to be driven by a combination of ion exchange, dissolution and precipitation on HAp and surface complexation. Water purification filters based on polylactic acid functionalised with hydroxyapatite were prepared by solvent-assisted blending and thermally induced phase separation (TIPS), extruded into filaments and processed via three-dimensional (3D) printing.![]()
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Affiliation(s)
- Natalia Fijoł
- Department of Materials and Environmental Chemistry, Stockholm University Frescativägen 8 106 91 Stockholm Sweden +46 8161256
| | - Hani Nasser Abdelhamid
- Department of Materials and Environmental Chemistry, Stockholm University Frescativägen 8 106 91 Stockholm Sweden +46 8161256.,Advanced Multifunctional Materials Laboratory, Department of Chemistry, Faculty of Science, Assiut University Assiut 71515 Egypt
| | - Binsi Pillai
- ICAR-Central Institute of Fisheries Technology Matsyapuri, Willington Island Cochin India - 682 029
| | - Stephen A Hall
- Division of Solid Mechanics, Lund University Lund Sweden.,Lund Institute of Advanced Neutron and X-Ray Science Lund Sweden
| | - Nebu Thomas
- Department of Periodontology, Pushpagiri College of Dental Sciences Thiruvalla Kerala India
| | - Aji P Mathew
- Department of Materials and Environmental Chemistry, Stockholm University Frescativägen 8 106 91 Stockholm Sweden +46 8161256
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6
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Abstract
Polylactic acid (PLA) is the most widely used raw material in extrusion-based three-dimensional (3D) printing (fused deposition modeling, FDM approach) in many areas since it is biodegradable and environmentally friendly, however its utilization is limited due to some of its disadvantages such as mechanical weakness, water solubility rate, etc. FDM is a simple and more cost-effective fabrication process compared to other 3D printing techniques. Unfortunately, there are deficiencies of the FDM approach, such as mechanical weakness of the FDM parts compared to the parts produced by the conventional injection and compression molding methods. Preparation of PLA composites with suitable additives is the most useful technique to improve the properties of the 3D-printed PLA parts obtained by the FDM method. In the last decade, newly developed PLA composites find large usage areas both in academic and industrial circles. This review focuses on the chemistry and properties of pure PLA and also the preparation methods of the PLA composites which will be used as a raw material in 3D printers. The main drawbacks of the pure PLA filaments and the necessity for the preparation of PLA composites which will be employed in the FDM-based 3D printing applications is also discussed in the first part. The current methods to obtain PLA composites as raw materials to be used as filaments in the extrusion-based 3D printing are given in the second part. The applications of the novel PLA composites by utilizing the FDM-based 3D printing technology in the fields of biomedical, tissue engineering, human bone repair, antibacterial, bioprinting, electrical conductivity, electromagnetic, sensor, battery, automotive, aviation, four-dimensional (4D) printing, smart textile, environmental, and luminescence applications are presented and critically discussed in the third part of this review.
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Song Y, Wang B, Altemose P, Kowall C, Li L. 3D-Printed Membranes with a Zwitterionic Hydrogel Coating for More Robust Oil–Water Separation. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04436] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yihan Song
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Bingchen Wang
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Patrick Altemose
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
| | - Cliff Kowall
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
- Lubrizol Corporation, 29400 Lakeland Boulevard, Wickliffe, Ohio 44092, United States
| | - Lei Li
- Department of Chemical & Petroleum Engineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, United States
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Wancura M, Talanker M, Toubbeh S, Bryan A, Cosgriff-Hernandez E. Bioactive hydrogel coatings of complex substrates using diffusion-mediated redox initiation. J Mater Chem B 2020; 8:4289-4298. [PMID: 32322860 DOI: 10.1039/d0tb00055h] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Hydrogels have long been established as materials with tunable stiffness and chemistry that enable controlled cellular interactions. When applied as coatings, hydrogels can be used to introduce biofunctionality to medical devices with minimal effect on bulk properties. However, it remains challenging to uniformly apply hydrogel coatings to three dimensional geometries without substantially changing the manufacturing process and potentially affecting device function. Herein, we report a new redox-based crosslinking method for applying conformable hydrogel coatings with tunable thickness and chemistry. This new diffusion-mediated strategy of redox initiation and hydrogel crosslinking enabled coating of a variety of three dimensional substrates without changing the primary fabrication process. Following adsorption of the reducing agent to the construct, hydrogel coating thickness was readily controlled by immersion time with desorption and diffusion of the reducing agent initiating hydrogel crosslinking from the surface. The process was used to generate a range of hydrogel properties by varying the macromer molecular weight and concentration. In addition, we demonstrated that these coatings can be applied sequentially to generate multilayered constructs with distinct features. Finally, incorporation of proteins into the bulk of the hydrogel coating or as a final surface layer permitted the controlled introduction of bioactivity that supported cell attachment. This work provides a versatile method for assembling bioactive coatings with a simple post-fabrication process that is amenable to diverse geometric substrates and chemistries.
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Affiliation(s)
- Megan Wancura
- Department of Chemistry, The University of Texas at Austin, Austin, TX 78712, USA
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Zhang P, Zhao C, Zhao T, Liu M, Jiang L. Recent Advances in Bioinspired Gel Surfaces with Superwettability and Special Adhesion. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2019; 6:1900996. [PMID: 31572647 PMCID: PMC6760469 DOI: 10.1002/advs.201900996] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 06/09/2019] [Indexed: 05/18/2023]
Abstract
Engineering surface wettability is of great importance in academic research and practical applications. The exploration of hydrogel-based natural surfaces with superior properties has revealed new design principles of surface superwettability. Gels are composed of a cross-linked polymer network that traps numerous solvents through weak interactions. The natural fluidity of the trapped solvents confers the liquid-like property to gel surfaces, making them significantly different from solid surfaces. Bioinspired gel surfaces have shown promising applications in diverse fields. This work aims to summarize the fundamental understanding and emerging applications of bioinspired gel surfaces with superwettability and special adhesion. First, several typical hydrogel-based natural surfaces with superwettability and special adhesion are briefly introduced, followed by highlighting the unique properties and design principles of gel-based surfaces. Then, the superwettability and emerging applications of bioinspired gel surfaces, including liquid/liquid separation, antiadhesion of organisms and solids, and fabrication of thin polymer films, are presented in detail. Finally, an outlook on the future development of these novel gel surfaces is also provided.
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Affiliation(s)
- Pengchao Zhang
- Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing100191P. R. China
| | - Chuangqi Zhao
- Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing100191P. R. China
| | - Tianyi Zhao
- Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing100191P. R. China
| | - Mingjie Liu
- Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing100191P. R. China
- International Research Institute for Multidisciplinary Science and Beijing Advanced Innovation Center for Biomedical EngineeringBeihang UniversityBeijing100191P. R. China
| | - Lei Jiang
- Key Laboratory of Bioinspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing100191P. R. China
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