Superhydrophobic and superoleophilic membranes for oil-water separation application: A comprehensive review

Rasouli, Seyedabbas; Rezaei, Nima; Hamedi, Hamideh; Zendehboudi, Sohrab; Duan, Xili

doi:10.1016/j.matdes.2021.109599

Cited by 296 publications

(129 citation statements)

References 280 publications

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“…Membrane wettability and hydrophilic characteristics are crucial for highly efficient oil/water separation [ 49 ], as needed for the treatment of olive oil washing wastewater. Therefore, surface-wetting properties of the membrane were studied.…”

Section: Resultsmentioning

confidence: 99%

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

2021

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The development of a low-cost and environmentally-friendly procedure for the fabrication of silicon carbide (SiC) membranes while achieving good membrane performance is an important goal, but still a big challenge. To address this challenge, herein, a colloidal coating suspension of sub-micron SiC powders was prepared in aqueous media by employing aluminum nitrate nonahydrate as a sintering additive and was used for the deposition of a novel SiC membrane layer onto a SiC tubular support by dip-coating. The sintering temperature influence on the structural morphology was studied. Adding aluminum nitrate nonahydrate reduced the sintering temperature of the as-prepared membrane compared to conventional SiC membrane synthesis. Surface morphology, pore size distribution, crystalline structure, and chemical and mechanical stability of the membrane were characterized. The membrane showed excellent corrosion resistance in acidic and basic medium for 30 days with no significant changes in membrane properties. The pure water permeance of the membrane was measured as 2252 L h−1 m−2 bar−1. Lastly, the final membrane with 0.35 µm mean pore size showed high removal of oil droplets (99.7%) in emulsified oil-in-water with outstanding permeability. Hence, the new SiC membrane is promising for several industrial applications in the field of wastewater treatment.

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Section: Resultsmentioning

confidence: 99%

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

2021

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“…[ 117 ] Diverse superhydrophobic polymer membranes have been successfully prepared for oil/water emulsions separation through various methods, such as phase inversion method, solvothermal method and coating method. [ 155,156 ]…”

Section: Special Wettability Membranes For Oil/water Emulsions Separationmentioning

confidence: 99%

Design, Development, and Outlook of Superwettability Membranes in Oil/Water Emulsions Separation

Cai

Fang

2021

Adv Materials Inter

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Oil leakage and discharge of industrial organic solvents are the main reasons for the oily wastewater. The separation of oil/water emulsions has been a global challenge due to the small particle size of the emulsions and their stabilities. An effective method is needed to resolve these issues. Superwettability membrane method has demonstrated a high separation efficiency, fast separation speed, low energy consumption, good scalability, easy operation, and recyclability. In essence, the special wettability of material is mainly determined by two factors: the chemical compositions of material surface and the surface morphology. Herein, in this review, the development of special wettability separation membranes is discussed including different preparation methods, and material preparation, such as superhydrophobic/super lipophilic, superhydrophilic/underwater superoleophobic, superlipophilic/superhydrophobic under oil, smart membranes with switchable wettability, and special wettability membranes with self‐healing or self‐cleaning property. The representative works of each part are introduced, focusing on preparation methods, innovations and separation performance of membranes. Finally, challenges and future directions in this field are also described.

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“…Thus, instead of modifying the polymer’s bulk properties, surface modifications of cellulose and cellulose composites (e.g., surface coating, chemical modification, plasma or vapor deposition treatment, a combination of such), tailored for a specific purpose, can result in materials with targeted properties. For instance, cellulose is hydrophilic, and impartment of hydrophobicity is required in applications such as self-cleaning [ 40 ] or self-healing materials [ 41 ], oil and water separation [ 42 ], electromagnetic interference (EMI) shielding [ 43 ], etc. Recent review discusses superhydrophobic modification of cellulose and potential applications [ 44 ].…”

Section: Introductionmentioning

confidence: 99%

Production and Surface Modification of Cellulose Bioproducts

Liyanage¹,

Acharya²,

Parajuli³

et al. 2021

Polymers

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Petroleum-based synthetic plastics play an important role in our life. As the detrimental health and environmental effects of synthetic plastics continue to increase, the renewable, degradable and recyclable properties of cellulose make subsequent products the “preferred environmentally friendly” alternatives, with a small carbon footprint. Despite the fact that the bioplastic industry is growing rapidly with many innovative discoveries, cellulose-based bioproducts in their natural state face challenges in replacing synthetic plastics. These challenges include scalability issues, high cost of production, and most importantly, limited functionality of cellulosic materials. However, in order for cellulosic materials to be able to compete with synthetic plastics, they must possess properties adequate for the end use and meet performance expectations. In this regard, surface modification of pre-made cellulosic materials preserves the chemical profile of cellulose, its mechanical properties, and biodegradability, while diversifying its possible applications. The review covers numerous techniques for surface functionalization of materials prepared from cellulose such as plasma treatment, surface grafting (including RDRP methods), and chemical vapor and atomic layer deposition techniques. The review also highlights purposeful development of new cellulosic architectures and their utilization, with a specific focus on cellulosic hydrogels, aerogels, beads, membranes, and nanomaterials. The judicious choice of material architecture combined with a specific surface functionalization method will allow us to take full advantage of the polymer’s biocompatibility and biodegradability and improve existing and target novel applications of cellulose, such as proteins and antibodies immobilization, enantiomers separation, and composites preparation.

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Superhydrophobic and superoleophilic membranes for oil-water separation application: A comprehensive review

Cited by 296 publications

References 280 publications

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

Ceramic Processing of Silicon Carbide Membranes with the Aid of Aluminum Nitrate Nonahydrate: Preparation, Characterization, and Performance

Design, Development, and Outlook of Superwettability Membranes in Oil/Water Emulsions Separation

Production and Surface Modification of Cellulose Bioproducts

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