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Usman J, Abba SI, Baig N, Abu-Zahra N, Hasan SW, Aljundi IH. Design and Machine Learning Prediction of In Situ Grown PDA-Stabilized MOF (UiO-66-NH 2) Membrane for Low-Pressure Separation of Emulsified Oily Wastewater. ACS APPLIED MATERIALS & INTERFACES 2024; 16:16271-16289. [PMID: 38514254 DOI: 10.1021/acsami.4c00752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/23/2024]
Abstract
Significant progress has been made in designing advanced membranes; however, persistent challenges remain due to their reduced permeation rates and a propensity for substantial fouling. These factors continue to pose significant barriers to the effective utilization of membranes in the separation of oil-in-water emulsions. Metal-organic frameworks (MOFs) are considered promising materials for such applications; however, they encounter three key challenges when applied to the separation of oil from water: (a) lack of water stability; (b) difficulty in producing defect-free membranes; and (c) unresolved issue of stabilizing the MOF separating layer on the ceramic membrane (CM) support. In this study, a defect-free hydrolytically stable zirconium-based MOF separating layer was formed through a two-step method: first, by in situ growth of UiO-66-NH2 MOF into the voids of polydopamine (PDA)-functionalized CM during the solvothermal process, and then by facilitating the self-assembly of UiO-66-NH2 with PDA using a pressurized dead-end assembly. A stable MOF separating layer was attained by enriching the ceramic support with amines and hydroxyl groups using PDA, which assisted in the assembly and stabilization of UiO-66-NH2. The PDA-s-UiO-66-NH2-CM membrane displayed air superhydrophilicity and underwater superoleophobicity, demonstrating its oil resistance and high antifouling behavior. The PDA-s-UiO-66-NH2-CM membrane has shown exceptionally high permeability and separation capacity for challenging oil-in-water emulsions. This is attributed to numerous nanochannels from the membrane and its high resistance to oil adhesion. The membranes showed excellent stability over 15 continuous test cycles, which indicates that the developed MOFs separating layers have a low tendency to be clogged by oil droplets during separation. Machine learning-based Gaussian process regression (GPR) models as nonparametric kernel-based probabilistic models were employed to predict the performance efficiency of the PDA-s-UiO-66-NH2-CM membrane in oil-in-water separation. The outcomes were compared with the support vector machine (SVM) and decision tree (DT) algorithm. This efficiency includes various metrics related to its separation accuracy, and the models were developed through feature engineering to identify and utilize the most significant factors affecting the membrane's performance. The results proved the reliability of GPR optimization with the highest prediction accuracy in the validation phase. The average percentage increase of the GPR model compared to the SVM and DT model was 6.11 and 42.94%, respectively.
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Affiliation(s)
- Jamilu Usman
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Sani I Abba
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Nadeem Baig
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Nidal Abu-Zahra
- Materials Science and Engineering Department, University of Wisconsin-Milwaukee, 3200 North Cramer Street, Milwaukee, Wisconsin 53201, United States
| | - Shadi W Hasan
- Center for Membranes and Advanced Water Technology (CMAT), Department of Chemical and Petroleum Engineering, Khalifa University of Science and Technology, P.O. Box 127788 Abu Dhabi, United Arab Emirates
| | - Isam H Aljundi
- Interdisciplinary Research Centre for Membranes and Water Security (IRC-MWS), King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
- Chemical Engineering Department, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
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Ezazi M, Quazi MM. Recent Developments in Two-Dimensional Materials-Based Membranes for Oil-Water Separation. MEMBRANES 2023; 13:677. [PMID: 37505043 PMCID: PMC10386624 DOI: 10.3390/membranes13070677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/10/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
The industrialization witnessed in the last century has resulted in an unprecedented increase in water pollution. In particular, the water pollution induced by oil contaminants from oil spill accidents, as well as discharges from pharmaceutical, oil/gas, and metal processing industries, have raised concerns due to their potential to pose irreversible threats to the ecosystems. Therefore, the effective treating of these large volumes of oily wastewater is an inevitable challenge to address. Separating oil-water mixtures by membranes has been an attractive technology due to the high oil removal efficiency and low energy consumption. However, conventional oil-water separation membranes may not meet the complex requirements for the sustainable treatment of wastewater due to their relatively shorter life cycle, lower chemical and thermal stability, and permeability/selectivity trade-off. Recent advancements in two-dimensional (2D) materials have provided opportunities to address these challenges. In this article, we provide a brief review of the most recent advancements in oil-water separation membranes modified with 2D materials, with a focus on MXenes, graphenes, metal-organic frameworks, and covalent organic frameworks. The review briefly covers the backgrounds, concepts, fabrication methods, and the most recent representative studies. Finally, the review concludes by describing the challenges and future research directions.
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Affiliation(s)
- Mohammadamin Ezazi
- Department of Mechanical Engineering, Georgia Southern University, Statesboro, GA 30460, USA
| | - M M Quazi
- Faculty of Mechanical and Automotive Engineering Technology, Universiti Malaysia Pahang, Pekan 26600, Pahang, Malaysia
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Wang L, Huang J, Li Z, Han Z, Fan J. Review of Synthesis and Separation Application of Metal-Organic Framework-Based Mixed-Matrix Membranes. Polymers (Basel) 2023; 15:polym15081950. [PMID: 37112097 PMCID: PMC10142373 DOI: 10.3390/polym15081950] [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: 03/29/2023] [Revised: 04/14/2023] [Accepted: 04/18/2023] [Indexed: 04/29/2023] Open
Abstract
Metal-organic frameworks (MOFs) are porous crystalline materials assembled from organic ligands and metallic secondary building blocks. Their special structural composition gives them the advantages of high porosity, high specific surface area, adjustable pore size, and good stability. MOF membranes and MOF-based mixed-matrix membranes prepared from MOF crystals have ultra-high porosity, uniform pore size, excellent adsorption properties, high selectivity, and high throughput, which contribute to their being widely used in separation fields. This review summarizes the synthesis methods of MOF membranes, including in situ growth, secondary growth, and electrochemical methods. Mixed-matrix membranes composed of Zeolite Imidazolate Frameworks (ZIF), University of Oslo (UIO), and Materials of Institute Lavoisier (MIL) frameworks are introduced. In addition, the main applications of MOF membranes in lithium-sulfur battery separators, wastewater purification, seawater desalination, and gas separation are reviewed. Finally, we review the development prospects of MOF membranes for the large-scale application of MOF membranes in factories.
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Affiliation(s)
- Lu Wang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
- Research Institute, Jilin University, Yibin 644500, China
| | - Jingzhe Huang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Zonghao Li
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Zhiwu Han
- Key Laboratory of Bionics Engineering of Ministry of Education, Jilin University, Changchun 130022, China
| | - Jianhua Fan
- School of Mechanical and Aerospace Engineering, Jilin University, Changchun 130025, China
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4
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Jayaramulu K, Mukherjee S, Morales DM, Dubal DP, Nanjundan AK, Schneemann A, Masa J, Kment S, Schuhmann W, Otyepka M, Zbořil R, Fischer RA. Graphene-Based Metal-Organic Framework Hybrids for Applications in Catalysis, Environmental, and Energy Technologies. Chem Rev 2022; 122:17241-17338. [PMID: 36318747 PMCID: PMC9801388 DOI: 10.1021/acs.chemrev.2c00270] [Citation(s) in RCA: 42] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Indexed: 11/06/2022]
Abstract
Current energy and environmental challenges demand the development and design of multifunctional porous materials with tunable properties for catalysis, water purification, and energy conversion and storage. Because of their amenability to de novo reticular chemistry, metal-organic frameworks (MOFs) have become key materials in this area. However, their usefulness is often limited by low chemical stability, conductivity and inappropriate pore sizes. Conductive two-dimensional (2D) materials with robust structural skeletons and/or functionalized surfaces can form stabilizing interactions with MOF components, enabling the fabrication of MOF nanocomposites with tunable pore characteristics. Graphene and its functional derivatives are the largest class of 2D materials and possess remarkable compositional versatility, structural diversity, and controllable surface chemistry. Here, we critically review current knowledge concerning the growth, structure, and properties of graphene derivatives, MOFs, and their graphene@MOF composites as well as the associated structure-property-performance relationships. Synthetic strategies for preparing graphene@MOF composites and tuning their properties are also comprehensively reviewed together with their applications in gas storage/separation, water purification, catalysis (organo-, electro-, and photocatalysis), and electrochemical energy storage and conversion. Current challenges in the development of graphene@MOF hybrids and their practical applications are addressed, revealing areas for future investigation. We hope that this review will inspire further exploration of new graphene@MOF hybrids for energy, electronic, biomedical, and photocatalysis applications as well as studies on previously unreported properties of known hybrids to reveal potential "diamonds in the rough".
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Affiliation(s)
- Kolleboyina Jayaramulu
- Department
of Chemistry, Indian Institute of Technology
Jammu, Jammu
and Kashmir 181221, India
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech Republic
| | - Soumya Mukherjee
- Inorganic
and Metal−Organic Chemistry, Department of Chemistry and Catalysis
Research Centre, Technical University of
Munich, Garching 85748, Germany
| | - Dulce M. Morales
- Analytical
Chemistry, Center for Electrochemical Sciences (CES), Faculty of Chemistry
and Biochemistry, Ruhr-Universität
Bochum, Universitätsstrasse 150, Bochum D-44780, Germany
- Nachwuchsgruppe
Gestaltung des Sauerstoffentwicklungsmechanismus, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner-Platz 1, Berlin 14109, Germany
| | - Deepak P. Dubal
- School
of Chemistry and Physics, Queensland University
of Technology (QUT), 2 George Street, Brisbane, Queensland 4001, Australia
| | - Ashok Kumar Nanjundan
- School
of Chemistry and Physics, Queensland University
of Technology (QUT), 2 George Street, Brisbane, Queensland 4001, Australia
| | - Andreas Schneemann
- Lehrstuhl
für Anorganische Chemie I, Technische
Universität Dresden, Bergstrasse 66, Dresden 01067, Germany
| | - Justus Masa
- Max
Planck Institute for Chemical Energy Conversion, Stiftstrasse 34−36, Mülheim an der Ruhr D-45470, Germany
| | - Stepan Kment
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech Republic
- Nanotechnology
Centre, CEET, VŠB-Technical University
of Ostrava, 17 Listopadu
2172/15, Ostrava-Poruba 708 00, Czech Republic
| | - Wolfgang Schuhmann
- Analytical
Chemistry, Center for Electrochemical Sciences (CES), Faculty of Chemistry
and Biochemistry, Ruhr-Universität
Bochum, Universitätsstrasse 150, Bochum D-44780, Germany
| | - Michal Otyepka
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech Republic
- IT4Innovations, VŠB-Technical University of Ostrava, 17 Listopadu 2172/15, Ostrava-Poruba 708 00, Czech Republic
| | - Radek Zbořil
- Regional
Centre of Advanced Technologies and Materials, Czech Advanced Technology
and Research Institute (CATRIN), Palacký
University Olomouc, Šlechtitelů 27, Olomouc 783 71, Czech Republic
- Nanotechnology
Centre, CEET, VŠB-Technical University
of Ostrava, 17 Listopadu
2172/15, Ostrava-Poruba 708 00, Czech Republic
| | - Roland A. Fischer
- Inorganic
and Metal−Organic Chemistry, Department of Chemistry and Catalysis
Research Centre, Technical University of
Munich, Garching 85748, Germany
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Xue J, Li J, Gao J, Wang M, Ma S. CoFe2O4 functionalized PVDF membrane for synchronous oil/water separation and peroxomonosulfate activation toward aromatic pollutants degradation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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6
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Experimental and density functional theory studies of laminar double-oxidized graphene oxide nanofiltration membranes. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Ma L, Wan Y, Wang T, Liu Y, Yin Y, Zhang L. Self-Assembled CMC/UiO-66-NH 2 Membrane with Anti-Crude Oil Adhesion Property for Highly Efficient Oil-Water Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:12499-12509. [PMID: 36194832 DOI: 10.1021/acs.langmuir.2c01905] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Developing the high-anti-fouling membrane has kept continuous attention in oil/water emulsion treatment. However, the majority of works on anti-fouling membranes mainly focused on low-viscosity oils, which greatly limited the development and application of a membrane to face the real crude oil wastewater. Inspired by the hydrophilicity of sodium carboxymethyl cellulose (CMC) and zirconium base metal-organic frame (Zr-MOF), an anti-oil-fouling CMC/UiO-66-NH2 composite membrane was constructed by a self-assembly method. Profiting from the hydrophilicity and micro-nanostructure of the CMC/UiO-66-NH2 layer, the obtained CMC/UiO-66-NH2 membranes displayed underwater superoleophobicity and desired oil resistance. It could display the effective separation capability with 1282 ± 62 to 6160 ± 81 L/(m2·h·bar) and above 99.08% toward the different light oil emulsions. More importantly, the CMC/UiO-66-NH2 membrane displayed ultralow crude oil adhesion behaviors toward the crude oil emulsions, which could achieve a considerably high flux (746 ± 60 to 5224 ± 87 L/(m2·h·bar)). Furthermore, electrostatic interaction and physical enwinding-wrapping between CMC and UiO-66-NH2 also endowed the composite membranes with outstanding stability. After immersing the as-prepared membranes into the harsh environments for 24 h, the membranes still maintained high underwater-oil contact angles (UWOCA > 155°) and separation ability (oil rejection was above 99.0%). Therefore, CMC/UiO-66-NH2 composite membranes could demonstrate promising prospects in real oily emulsion treatment.
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Affiliation(s)
- Lan Ma
- School of Science, Xihua University, Jinzhou Road, Chengdu, Sichuan610039, China
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, 8 Xindu Avenue, Chengdu, Sichuan610500, China
| | - Yan Wan
- School of Science, Xihua University, Jinzhou Road, Chengdu, Sichuan610039, China
| | - Teng Wang
- School of Science, Xihua University, Jinzhou Road, Chengdu, Sichuan610039, China
| | - Yaling Liu
- Sichuan Special Equipment Inspection and Research Institute, Chenglong Avenue, Chengdu, Sichuan610500, China
| | - Ying Yin
- Sichuan Special Equipment Inspection and Research Institute, Chenglong Avenue, Chengdu, Sichuan610500, China
| | - Liyun Zhang
- School of Science, Xihua University, Jinzhou Road, Chengdu, Sichuan610039, China
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9
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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: 9] [Impact Index Per Article: 4.5] [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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Highly stable membrane comprising MOF nanosheets and graphene oxide for ultra-permeable nanofiltration. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120479] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Li S, Zhang L, Yin X, Wang Y, Guo X, He Y. Efficient photocatalysis improves the self-cleaning property of the superwetting nanofibrous membrane toward emulsified oily wastewater. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2022.120440] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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12
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Wu Y, Ye H, You C, Zhou W, Chen J, Xiao W, Garba ZN, Wang L, Yuan Z. Construction of functionalized graphene separation membranes and their latest progress in water purification. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Air superhydrophilic-superoleophobic SiO 2-based coatings for recoverable oil/water separation mesh with high flux and mechanical stability. J Colloid Interface Sci 2021; 600:118-126. [PMID: 34010769 DOI: 10.1016/j.jcis.2021.05.004] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 12/15/2022]
Abstract
Due to the inherent differences in surface tension between water and oil, it is a challenge to fabricate air superhydrophilic-superoleophobic materials despite their promising potential in the field of oil/water separation. Herein, a facile approach is developed to fabricate air superhydrophilic-superoleophobic SiO2 coating by combination of controllable modifying SiO2 nanoparticle surface by both hydrophilic groups (i.e., -OH groups) and oleophobic groups (i.e., fluorinated groups) with constructing porous and hierarchical structures. Hydroxyl-modified SiO2 nanoparticles (NPs) are synthesized using a base-catalysed procedure in the presence of ammonia or NaOH. Chitosan quaternary ammonium salt (HACC) is introduced to bind SiO2 by forming a unique hydrogen bond between HACC and -OH, followed by adding pentadecafluorooctanoic acid (PFOA) to complex with HACC to form fluorinated groups. The SiO2 coatings are fabricated on various substrates (e.g., glass, foam and Cu mesh) by spraying procedure and characterized using SEM, FTIR, XPS, etc. The contact angles of oils (e.g., pump oil, castor oil, corn oil, hexadecane and bean oil) and water on the coatings are over 150° and close to 0°, respectively. By optimization, the representative SiO2-coated Cu mesh displayed high-efficiency of 99.2% in separating water from mixture of water/pump oil, and high penetration flux of 1.41 × 104 L·m-2 ·h-1. Besides, the coating maintains its superhydrophilic-superoleophobic properties even after 110 cycles of sandpaper abrasion or after being immersed in water for 3 h. After 20 cycles of oil/water separation, the coating retains separation efficiency up to 97.93%. This study provides a new and universal protocol to fabricate unique superwetting surfaces with effective oil/water separation performance, long-term durability and outstanding reusability.
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Zheng Y, Zhang C, Wang L, Long X, Zhang J, Zuo Y, Jiao F. Tannic acid-based complex coating modified membranes with photo-Fenton self-cleaning property for sustainable oil-in-water emulsion separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.118893] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Meng H, Liang H, Xu T, Bai J, Li C. Crosslinked electrospinning membranes with contamination resistant properties for highly efficient oil–water separation. JOURNAL OF POLYMER RESEARCH 2021. [DOI: 10.1007/s10965-021-02700-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Li S, He Y, Zhang L, Li J, Nie Y, Li H, Yin X, Bai Y. Designing nanofibrous membrane with biomimetic caterpillar-like structured for highly-efficient and simultaneous removal of insoluble emulsified oils and soluble dyes towards sewage remediation. JOURNAL OF HAZARDOUS MATERIALS 2021; 414:125442. [PMID: 33662794 DOI: 10.1016/j.jhazmat.2021.125442] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/06/2021] [Accepted: 02/13/2021] [Indexed: 06/12/2023]
Abstract
Purification of insoluble emulsified oils and soluble organic pollutants from sewage has attracted tremendous attention in today's society. Herein, a stable and environmentally friendly nanofibrous membrane with hierarchical caterpillar-like structure was fabricated via in-situ hydrothermal growing the nickel-cobalt layered double hydroxides (NiCo-LDHs) on tche polyacrylonitrile (PAN) electrospun nanofibers. The wrapped hydrophilic NiCo-LDHs constructed the hierarchical structure and endowed the membrane attractive superhydrophilicity (≈ 0°)/underwater superoleophobicity (≈ 161°) and enhanced oil-repellency performance. Meanwhile, the NiCo-LDH@PANI/oPAN NFMs can display the ultra-fast flux of SSEs (xylene/water emulsion, 4175 L m-2 h-1) and satisfactory separation efficiency (99.07%). Moreover, the introduction of positively charged NiCo-LDHs increased plentiful adsorption active sites for membranes, which is beneficial to demulsify ionic SSEs and adsorb organic pollutants. Finally, for simultaneous purification of complex sewage by the dead-end and cross-flow filtration experiment, the composite membrane both displayed splendid removal rate of oil (> 99.0%) and dyes (> 99.0%), robust regeneration recycle-ability and no secondary pollution. Hence, it is expected that such strategy of combining electrospun and chelating-assisted in-situ hydrothermal can provide a low energy consumption and high decontamination technology for severe environmental crisis.
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Affiliation(s)
- Shuangshuang Li
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Yi He
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
| | - Liyun Zhang
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
| | - Jianbo Li
- College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China.
| | - Yiling Nie
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Hongjie Li
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Xiangying Yin
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China; College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, PR China
| | - Yang Bai
- State Key Lab of Oil and Gas Reservoir Geology and Exploitation, Southwest Petroleum University, Chengdu 610500, PR China
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