1
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Jiang S, Niu H, Gu X, Cai Y. Perfluoroalkyl Functionalized Superhydrophobic Covalent Organic Frameworks for Excellent Oil-Water Membrane Separation and Anhydrous Proton Conduction. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403772. [PMID: 39004855 DOI: 10.1002/smll.202403772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2024] [Revised: 06/19/2024] [Indexed: 07/16/2024]
Abstract
Rapid economic development has led to oil pollution and energy shortage. Membrane separation has attracted much attention due to its simplicity and efficiency in oil-water-separation. The development of membrane materials with enhanced separation properties is essential to improve the separation-efficiency. Proton exchange membrane fuel cells (PEMFCs) are expected to replace conventional engines due to their high-power-conversion rates and other favorable properties. Anhydrous-proton-conducting materials are vital components of PEMFCs. However, developing stable proton-conducting materials that exhibit high conductivity at varying temperatures remains challenging. Herein, two covalent organic frameworks (COFs) with long-side-chains are synthesized, and their corresponding COF@SSN membranes. Both membranes can effectively separate oil-water mixtures and water-in-oil emulsions. The TFPT-AF membrane achieves a maximum oil-flux of 6.05 × 105 g h-1 m-2 with an oil-water separation efficiency of above 99%, which is almost unchanged after 20 consecutive uses. COF@H3PO4 doped with different ratios of H3PO4 is prepared, the results show that the perfluorocarbon-chain system has excellent anhydrous proton conductivity , achieving an ultra-high proton-conductivity of 3.98 × 10-1 S cm-1 at 125 °C. This study lays the foundation for tailor-made-functionalization of COF through pre-engineering and surface-modification, highlighting the great potential of COFs for oil-water separation and anhydrous-proton-conductivity.
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Affiliation(s)
- Shaodong Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Hongyun Niu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
| | - Xiaoling Gu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yaqi Cai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
- School of Environment, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, 310024, P. R. China
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2
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Yang C, Wang K, Lyu W, Liu H, Li J, Wang Y, Jiang R, Yuan J, Liao Y. Nanofibrous Porous Organic Polymers and Their Derivatives: From Synthesis to Applications. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400626. [PMID: 38476058 PMCID: PMC11109660 DOI: 10.1002/advs.202400626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2024] [Revised: 02/06/2024] [Indexed: 03/14/2024]
Abstract
Engineering porous organic polymers (POPs) into 1D morphology holds significant promise for diverse applications due to their exceptional processability and increased surface contact for enhanced interactions with guest molecules. This article reviews the latest developments in nanofibrous POPs and their derivatives, encompassing porous organic polymer nanofibers, their composites, and POPs-derived carbon nanofibers. The review delves into the design and fabrication strategies, elucidates the formation mechanisms, explores their functional attributes, and highlights promising applications. The first section systematically outlines two primary fabrication approaches of nanofibrous POPs, i.e., direct bulk synthesis and electrospinning technology. Both routes are discussed and compared in terms of template utilization and post-treatments. Next, performance of nanofibrous POPs and their derivatives are reviewed for applications including water treatment, water/oil separation, gas adsorption, energy storage, heterogeneous catalysis, microwave absorption, and biomedical systems. Finally, highlighting existent challenges and offering future prospects of nanofibrous POPs and their derivatives are concluded.
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Affiliation(s)
- Chen Yang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
- Department of Materials and Environmental ChemistryStockholm UniversityStockholm10691Sweden
| | - Kexiang Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Wei Lyu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - He Liu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Jiaqiang Li
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Yue Wang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Ruyu Jiang
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
| | - Jiayin Yuan
- Department of Materials and Environmental ChemistryStockholm UniversityStockholm10691Sweden
| | - Yaozu Liao
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and EngineeringDonghua UniversityShanghai201620China
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3
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Zhang Y, Tian S, Sha Q, Lv J, Han N, Zhang X. Covalent organic framework functionalized smart membranes with under-liquid dual superlyophobicity for efficient separation of oil/water emulsions. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166895. [PMID: 37683856 DOI: 10.1016/j.scitotenv.2023.166895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 08/17/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
The smart membrane with under-liquid dual superlyophobicity, which can achieve on-demand separation of oil/water emulsions only by simple liquid pre-wetting, is of essential value for the treatment of complicated real oil/water systems. Here, we first fabricated a stable suspension of imine-linked covalent organic framework nanospheres (TPB-DMTP-COF), and subsequently fabricated COF functionalized smart membranes with under-liquid dual superlyophobicity by immersing polyacrylonitrile-based (PAN-based) membranes into TPB-DMTP-COF nanosphere suspension. Accordingly, effective switchable separation of both oil-in-water and water-in-oil emulsions by TPB-DMTP-COF/PAN membranes can be achieved by employing pre-wetting processes (both the oil contact angle under water and the water contact angle under oil are over 150°). Specifically, the separation flux and the separation efficiency are higher than 1200 L/m2‧h and 98.0 %, and 2100 L/m2‧h and 97.4 % for the surfactant-stabilized oil-in-water and water-in-oil emulsions, respectively. Furthermore, the ultralow adhesions in liquid contributed to the outstanding reusability and antifouling resistance of the prepared TPB-DMTP-COF/PAN membranes. This work provides a feasible approach for fabricating a smart membrane with under-liquid dual superlyophobicity for oily wastewater treatment.
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Affiliation(s)
- Yaqi Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China; Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Shiwei Tian
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China; Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Qiankun Sha
- National Innovation Center of Advanced Dyeing & Finishing Technology, Tai'an, Shandong 271000, China
| | - Jinjie Lv
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China; Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Na Han
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China; Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China.
| | - Xingxiang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, Tianjin 300387, China; Tianjin Municipal Key Laboratory of Advanced Fiber and Energy Storage Technology, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China.
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4
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Zhang J, Peng K, Xu ZK, Xiong Y, Liu J, Cai C, Huang X. A comprehensive review on the behavior and evolution of oil droplets during oil/water separation by membranes. Adv Colloid Interface Sci 2023; 319:102971. [PMID: 37562248 DOI: 10.1016/j.cis.2023.102971] [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: 01/07/2023] [Revised: 07/01/2023] [Accepted: 07/31/2023] [Indexed: 08/12/2023]
Abstract
Membrane separation technology has significant advantages for treating oil-in-water emulsions. Understanding the evolution of oil droplets could reveal the interfacial and colloidal interactions, facilitate the design of advanced membranes, and improve the separation performances. This review on the characteristic behavior and evolution of oil droplets focuses on the advanced analytical techniques, and the subsequent fouling as well as demulsification effects during membrane separation. A detailed introduction is provided on microscopic observations and numerical simulations of the dynamic evolution of oil droplets, featuring real-time in-situ visualization and accurate reconstruction, respectively. Characteristic behaviors of these oil droplets include attachment, pinning, wetting, spreading, blockage, intrusion, coalescence, and detachment, which have been quantified by specific proposed parameters and criteria. The fouling process can be evaluated using Hermia and resistance models. The related adhesion force and intrusion pressure as well as droplet-droplet/membrane interfacial interactions can be accurately quantified using various force analysis methods and advanced force measurement techniques. It is encouraging to note that oil coalescence has been achieved through various effects such as electrostatic interactions, mechanical actions, Laplace pressure/surface free energy gradients, and synergistic effects on functional membranes. When oil droplets become destabilized and coalesce into larger ones, the functional membranes can overcome the limitations of size-sieving effect to attain higher separation efficiency. This not only bypasses the trade-off between permeability and rejection, but also significantly reduces membrane fouling. Finally, the challenges and potential research directions in membrane separation are proposed. We hope this review will support the engineering of advanced materials for oil/water separation and research on interface science in general.
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Affiliation(s)
- Jialu Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China
| | - Kaiming Peng
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China.
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization, and Key Lab of Adsorption and Separation Materials & Technologies of Zhejiang Province, Department of Polymer Science and Engineering, Zhejiang University, No.38 Zheda Road, Hangzhou 310027, PR China
| | - Yongjiao Xiong
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China
| | - Jia Liu
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China
| | - Chen Cai
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China
| | - Xiangfeng Huang
- State Key Laboratory of Pollution Control and Resource Reuse, Ministry of Education Key Laboratory of Yangtze River Water Environment, Shanghai Institute of Pollution Control and Ecological Security, College of Environmental Science and Engineering, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China; Institute of Carbon Neutrality, Tongji University, No.1239 Siping Road, Shanghai 200092, PR China.
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5
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Ostadi M, Kamelian FS, Mohammadi T. Superhydrophilic micro/nano hierarchical functionalized-CuO/PVDF nanocomposite membranes with ultra-low fouling/biofouling performance for acetate wastewater treatment: MBR application. J Memb Sci 2023. [DOI: 10.1016/j.memsci.2023.121591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
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6
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Zhang Y, Zhang G, Li B, Wu L. Non-Stop Switching Separation of Superfine Solid/Liquid Dispersed Phases in Oil and Water Systems Using Polymer-Assisted Framework Fiber Membranes. SMALL METHODS 2023; 7:e2201455. [PMID: 36908003 DOI: 10.1002/smtd.202201455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/20/2023] [Indexed: 06/09/2023]
Abstract
Fabricating filtration membranes with wide applicability and high efficiency is always a challenge in the precise separation of small colloidal particles under mild conditions. For this purpose, a strategy mixing supramolecular framework fiber with polymer is adopted. The fibrous assembly in the gel state provides uniform nanopores for both channel and interception and controlled wettability for lyophilic/lyophobic switching. The used polymer fills the gaps between fiber assemblies and improves the mechanical property. The composite membrane shows both under-oil superhydrophobic and underwater superoleophobic nature, which allows the conversions via in situ modulation of joystick solvents. Based on surface wetting and size-sieving, ultrafine hard nanoparticles dispersing in both hydrophobic organic solvents and water are selectively sieved. In addition, on-demand separation of water-in-oil and oil-in-water microemulsions without and with surfactants as systems containing soft droplets are realized. The smallest cut-off size of ≈3 nm is achieved for both hard and soft emulsions, while separation efficiency maintains during sustained in situ reversible switches.
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Affiliation(s)
- Yue Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Guohua Zhang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Bao Li
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
| | - Lixin Wu
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, P. R. China
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7
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Wei S, Xu Z, Liu Y, Liang Y, Wang G. Bioinspired spindle-knotted structure fiber membrane prepared by modified coaxial electrospinning for water-in-oil emulsion separation. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1254-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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8
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Zhang Y, Tan L, Han N, Tian S, Li W, Wang W, Wu Y, Sun Z, Zhang X. Janus ZIF-8/P(AN-MA) hybrid microfiltration membrane with selected wettability for highly efficient separation of water/oil emulsions. Sep Purif Technol 2023. [DOI: 10.1016/j.seppur.2022.122273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Superhydrophobic covalent organic frameworks prepared via nucleophilic substitution reaction for effective oil/water separation. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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10
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Ma J, Dong Z. Biomimetic directional transport for sustainable liquid usage. BIOSURFACE AND BIOTRIBOLOGY 2022. [DOI: 10.1049/bsb2.12044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- Jie Ma
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial Sciences Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- School of Future Technology University of Chinese Academy of Sciences Beijing China
- College of Chemistry and Materials Science Northwest University Xian China
| | - Zhichao Dong
- CAS Key Laboratory of Bio‐inspired Materials and Interfacial Sciences Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing China
- School of Future Technology University of Chinese Academy of Sciences Beijing China
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11
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Mohammed AK, Al Khoori AA, Addicoat MA, Varghese S, Othman I, Jaoude MA, Polychronopoulou K, Baias M, Haija MA, Shetty D. Solvent‐Influenced Fragmentations in Free‐Standing Three‐Dimensional Covalent Organic Framework Membranes for Hydrophobicity Switching. Angew Chem Int Ed Engl 2022; 61:e202200905. [PMID: 35068021 PMCID: PMC9303774 DOI: 10.1002/anie.202200905] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 11/30/2022]
Abstract
The ordered open organic frameworks membranes are attractive candidates for flow‐assisted molecular separations. The physicochemical properties of such membranes mostly depend on their selectively chosen functional building blocks. In this work, we have introduced a novel concept of functional switchability of three‐dimensional covalent organic framework (3D‐COF) membranes through a simple solvent‐influenced fragmentation method. This room‐temperature interfacial synthesis provides free‐standing 3D‐COF membranes with distinct physicochemical properties from the same building monomers. Notably, the change of solvent from chloroform to ethyl acetate switches the membrane property from hydrophilic (water contact angle 60°) to hydrophobic (water contact angle 142°) nature. The hydrophobic 3D‐COF membrane selectively passes oil molecules from an oil–water emulsion with a gravitational flux of 1536 L m−2 h−1.
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Affiliation(s)
| | - Ayesha A. Al Khoori
- Department of Mechanical Engineering Khalifa University Abu Dhabi United Arab Emirates
- Center for Catalysis and Separations Khalifa University Abu Dhabi United Arab Emirates
| | - Matthew A. Addicoat
- School of Science and Technology Nottingham Trent University Clifton Lane Nottingham NG11 8NS UK
| | - Sabu Varghese
- Science Division New York University, Abu Dhabi (NYUAD) Abu Dhabi United Arab Emirates
| | - Israa Othman
- Department of Chemistry Khalifa University Abu Dhabi United Arab Emirates
| | - Maguy Abi Jaoude
- Department of Chemistry Khalifa University Abu Dhabi United Arab Emirates
- Center for Catalysis and Separations Khalifa University Abu Dhabi United Arab Emirates
| | - Kyriaki Polychronopoulou
- Department of Mechanical Engineering Khalifa University Abu Dhabi United Arab Emirates
- Center for Catalysis and Separations Khalifa University Abu Dhabi United Arab Emirates
| | - Maria Baias
- Science Division New York University, Abu Dhabi (NYUAD) Abu Dhabi United Arab Emirates
| | - Mohammad Abu Haija
- Department of Chemistry Khalifa University Abu Dhabi United Arab Emirates
- Center for Catalysis and Separations Khalifa University Abu Dhabi United Arab Emirates
| | - Dinesh Shetty
- Department of Chemistry Khalifa University Abu Dhabi United Arab Emirates
- Center for Catalysis and Separations Khalifa University Abu Dhabi United Arab Emirates
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12
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Wu H, Shi J, Ning X, Long YZ, Zheng J. The High Flux of Superhydrophilic-Superhydrophobic Janus Membrane of cPVA-PVDF/PMMA/GO by Layer-by-Layer Electrospinning for High Efficiency Oil-Water Separation. Polymers (Basel) 2022; 14:621. [PMID: 35160610 PMCID: PMC8839309 DOI: 10.3390/polym14030621] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 12/10/2022] Open
Abstract
A simple and novel strategy of superhydrophilic-superhydrophobic Janus membrane was provided here to deal with the increasingly serious oil-water separation problem, which has a very bad impact on environmental pollution and resource recycling. The Janus membrane of cPVA-PVDF/PMMA/GO with opposite hydrophilic and hydrophobic properties was prepared by layer-by-layer electrospinning. The structure of the Janus membrane is as follows: firstly, the mixed solution of polyvinylidene fluoride (PVDF), polymethylmethacrylate (PMMA) and graphene oxide (GO) was electrospun to form a hydrophobic layer, then polyvinyl alcohol (PVA) nanofiber was coated onto the hydrophobic membrane by layer-by-layer electrospinning to form a composite membrane, and finally, the composite membrane was crosslinked to obtain a Janus membrane. The addition of GO can significantly improve the hydrophobicity, mechanical strength and stability of the Janus membrane. In addition, the prepared Janus membrane still maintained good oil-water separation performance and its separation efficiency almost did not decrease after many oil-water separation experiments. The flux in the process of oil-water separation can reach 1909.9 L m-2 h-1, and the separation efficiency can reach 99.9%. This not only proves the separation effect of the nanocomposite membrane, but also shows its high stability and recyclability. The asymmetric Janus membrane shows good oil-water selectivity, which gives Janus membrane broad application prospects in many fields.
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Affiliation(s)
- Han Wu
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, China; (H.W.); (J.S.); (X.N.); (Y.-Z.L.)
| | - Jia Shi
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, China; (H.W.); (J.S.); (X.N.); (Y.-Z.L.)
| | - Xin Ning
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, China; (H.W.); (J.S.); (X.N.); (Y.-Z.L.)
| | - Yun-Ze Long
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, China; (H.W.); (J.S.); (X.N.); (Y.-Z.L.)
- Collaborative Innovation Center for Nanomaterials & Devices, College of Physics, Qingdao University, Qingdao 266071, China
| | - Jie Zheng
- Industrial Research Institute of Nonwovens & Technical Textiles, College of Textiles & Clothing, Shandong Center for Engineered Nonwovens, Qingdao University, Qingdao 266071, China; (H.W.); (J.S.); (X.N.); (Y.-Z.L.)
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13
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Yang Y, Ren Z, Lin Y, Li L, Pan L, Qin H, Hou L. Robust Graphene/
PVA
Aerogel for High‐flux and High‐purity Separation of Water‐in‐oil Emulsion and its
CFD
Simulation. AIChE J 2022. [DOI: 10.1002/aic.17619] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Yu Yang
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Zhiying Ren
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Youxi Lin
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Linlin Li
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Ling Pan
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Hongling Qin
- College of Mechanical Engineering and Automation Institute of Metal Rubber & Vibration Noise, Fuzhou University Fuzhou China
- Fuzhou Friction and Lubrication Industry Technology Innovation Center Fuzhou China
| | - Linxi Hou
- Department of Materials‐Oriented Chemical Engineering College of Chemical Engineering Fuzhou University Fuzhou China
- Qingyuan Innovation Laboratory Quanzhou China
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14
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Mohammed AK, Alkhoori AA, Addicoat MA, Varghese S, Othman I, Jaoude MA, Polychronopoulou K, Baias M, Haija MA, Shetty D. Solvent Influenced Fragmentations in Free‐Standing Three‐Dimensional Covalent Organic Framework Membranes for Hydrophobicity Switching. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Abdul Khayum Mohammed
- Khalifa University Chemistry Khalifa UniversityArzanah Building (#8), Sas Al Nakhal Campus, PO Box. 127788 Abu Dhabi UNITED ARAB EMIRATES
| | | | | | - Sabu Varghese
- New York University - Abu Dhabi Campus Chemistry UNITED ARAB EMIRATES
| | - Israa Othman
- Khalifa University Chemistry UNITED ARAB EMIRATES
| | | | | | - Maria Baias
- New York University - Abu Dhabi Campus Chemistry UNITED ARAB EMIRATES
| | | | - Dinesh Shetty
- Khalifa University Muroor Street Abu Dhabi UNITED ARAB EMIRATES
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15
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Juraij K, Chingakham C, Manaf O, Sagitha P, Suni V, Sajith V, Sujith A. Polyurethane/multi‐walled carbon nanotube electrospun composite membrane for oil/water separation. J Appl Polym Sci 2022. [DOI: 10.1002/app.52117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Kandiyil Juraij
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Chinglenthoiba Chingakham
- School of Materials Science and Engineering National Institute of Technology Calicut Kozhikode India
- Department of Chemistry National University of Singapore Singapore Singapore
| | - Olongal Manaf
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Paroly Sagitha
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Vasudevan Suni
- Inorganic and Bio‐inorganic Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
| | - Vandana Sajith
- School of Materials Science and Engineering National Institute of Technology Calicut Kozhikode India
| | - Athiyanathil Sujith
- Materials Research Laboratory, Department of Chemistry National Institute of Technology Calicut Kozhikode India
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16
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Zhang J, Huang X, Xiong Y, Zheng W, Liu W, He M, Li L, Liu J, Lu L, Peng K. Spider silk bioinspired superhydrophilic nanofibrous membrane for efficient oil/water separation of nanoemulsions. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.119824] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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17
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Zheng W, Li A, Wang X, Li Z, Zhao B, Wang L, Kan W, Sun L, Qi X. Construction of hydrophilic covalent organic frameworks and their fast and efficient adsorption of cationic dyes from aqueous solution. NEW J CHEM 2022. [DOI: 10.1039/d2nj04336j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
TFPB-Pa-SO3H COF and TFPB-BDSA COF were synthesized and showed fast adsorption of MLB (1 and 2 min) and high adsorption uptakes of CV (1559 and 1288 mg g−1). TFPB-Pa-SO3H COF as adsorbing material was used for the removal of dye molecules in real water samples.
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Affiliation(s)
- Wang Zheng
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
| | - Anran Li
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
| | - Xiuwen Wang
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar, 161006, China
| | - Zhigang Li
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
| | - Bing Zhao
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar, 161006, China
| | - Liyan Wang
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar, 161006, China
| | - Wei Kan
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar, 161006, China
| | - Li Sun
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
- Heilongjiang Provincial Key Laboratory of Surface Active Agent and Auxiliary, Qiqihar, 161006, China
| | - Xin Qi
- Chemistry and Chemical Engineering Institute, Qiqihar University, Qiqihar, 161006, China
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18
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Manabe K, Nakano M, Norikane Y. Green Superlubricity Enabled by Only One Water Droplet on Plant Oil-Infused Surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:14878-14888. [PMID: 34894693 DOI: 10.1021/acs.langmuir.1c02689] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
The increase in energy loss due to friction and the use of large amounts of lubricants to improve it are major challenges we face from a global environmental perspective. Pitcher-plant-inspired liquid-infused surfaces (LISs) are emerging super-repellent surfaces against liquids. However, their coefficient of friction (CoF) against solids is higher than that of conventional lubricant surfaces. Herein, we demonstrate superlubricity with a single water droplet placed on a LIS holding oleic acid, a component of plant oil. When a water droplet is placed on the fluid layer, the CoF under reciprocating and rotating friction is 0.012 and 0.0098, respectively. A force in the direction opposite to the loading due to the Laplace pressure on the droplet and an autonomous positional movement of the water accompanied by the optimization of surface energy maintain the fluid-lubrication state and prevent direct contact between the surface and the friction material, resulting in a decrease of the dependence of the CoF on the friction velocity. The key technology here will not only present a novel strategy for preparing LISs against solids but also serve as a step toward a sustainable green strategy for friction reduction and lubrication, which would greatly reduce energy loss and environmental degradation.
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Affiliation(s)
- Kengo Manabe
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan
| | - Miki Nakano
- Advanced Manufacturing Research Institute (AMRI), National Institute of Advanced Industrial Science and Technology (AIST), 1-2-1 Namiki, Tsukuba, Ibaraki 305-8564, Japan
| | - Yasuo Norikane
- Research Institute for Advanced Electronics and Photonics, National Institute of Advanced Industrial Science and Technology (AIST), Higashi 1-1-1, Tsukuba, Ibaraki 305-8565, Japan
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19
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Su R, Yu L, Li L, Chen D, Liu H, Fan X, Liu G, Ma R, An K, Yu Y. Biomimetic Janus membrane with unidirectional water transport ability for rapid oil/water separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119423] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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20
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Wang H, Wang M, Wang Y, Wang J, Men X, Zhang Z, Singh V. Synergistic effects of COF and GO on high flux oil/water separation performance of superhydrophobic composites. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119268] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Hussain S, Wan X, Fang Z, Peng X. Superhydrophilic and Photothermal Fe-TCPP Nanofibrous Membrane for Efficient Oil-in-Water Nanoemulsion Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12981-12989. [PMID: 34711051 DOI: 10.1021/acs.langmuir.1c02046] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Separation and purification of surfactant-stabilized oil-in-water nanoemulsions is a great environmental challenge. Membrane-based separation strategies are more effective over conventional methods in the treatment of nanoemulsion waste water. In this paper, we construct a superhydrophilic membrane by coating a thin photothermal-responsive iron tetrakis(4-carboxyphenyl)porphyrin (Fe-TCPP) nanofibrous metal organic framework (MOF) selective layer on a macroporous polyethersulfone membrane. The as-prepared membrane exhibits high separation performance of oil-in-water nanoemulsions with permeance of 46.4 L·m-2·h-1·bar-1 and separation efficiency of 99%. It also demonstrates nice anti-oil/ionic-fouling property, good recyclability, and desirable stability. The high separation performance is accredited to the superhydrophilicity, highly charged surface, and nanometer pore sizes of the Fe-TCPP nanofibrous membrane. Due to the unique photothermal property of Fe-TCPP nanofibers, the permeance can be enhanced more than 50% by visible light without deteriorating the rejection. This photo-stimuli MOF-based thin-layer membrane offers great potential for the generation of point-of-use water treatment devices.
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Affiliation(s)
- Shabab Hussain
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, ERC of Membrane and Water Treatment, MOE, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xinyi Wan
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, ERC of Membrane and Water Treatment, MOE, Zhejiang University, Hangzhou 310027, P. R. China
| | - Zhou Fang
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, ERC of Membrane and Water Treatment, MOE, Zhejiang University, Hangzhou 310027, P. R. China
| | - Xinsheng Peng
- State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, ERC of Membrane and Water Treatment, MOE, Zhejiang University, Hangzhou 310027, P. R. China
- Wenzhou Key Laboratory of Novel Optoelectronic and Nanomaterials, Institute of Wenzhou, Zhejiang University, Wenzhou 325006, P. R. China
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22
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Fabrication of polyphenylene sulfide nanofibrous membrane via sacrificial templated-electrospinning for fast gravity-driven water-in-oil emulsion separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119124] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Niu L, Zhao X, Wu F, Tang Z, Lv H, Wang J, Fang M, Giesy JP. Hotpots and trends of covalent organic frameworks (COFs) in the environmental and energy field: Bibliometric analysis. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 783:146838. [PMID: 33865146 DOI: 10.1016/j.scitotenv.2021.146838] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/05/2021] [Accepted: 03/25/2021] [Indexed: 06/12/2023]
Abstract
Covalent organic frameworks (COFs) have attracted extensive attention due to their low density, adjustable structure, functionalization, and good stability. This paper systematically and comprehensively describes to qualitatively and quantitatively the progress, trends, and hotspots of COFs in the environmental and energy fields from the perspective of bibliometrics. Herein, based on the Web of Science database, a total of 2589 articles from 2005 to October 6, 2020, were collected. Thereafter, co-occurrence, co-citation analysis, and cluster analysis were conducted using CiteSpace and VOSviewer software. The results indicated that COFs research shows the characteristics of rapid growth. The active countries were mainly USA, Germany, Japan, China, and India. More than half of the top 20 active institutions were from China. The research hotspots in this field were systematically elaborated, including synthesis, adsorption, catalysis, membrane, sensor, and energy storage. Research has shown that various COFs are reasonably designed, synthesized, and used in different applications. For example, when COFs are used for photocatalysis, groups containing photocatalytic active sites are integrated into COFs to improve photocatalytic activity. Finally, some challenges were proposed, that are beneficial to the rapid and balanced development of the COFs field. For instance, the preparation methods still need to be further improved for mass production and there is an imbalance in environmental applications such as fewer sensor and membrane applications. We believe that this study provides a comprehensive and systematic overview of the environmental and energy applications of COFs for future investigations.
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Affiliation(s)
- Lin Niu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Xiaoli Zhao
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China.
| | - Fengchang Wu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Zhi Tang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Hongzhou Lv
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Junyu Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - Mengyuan Fang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, PR China
| | - John P Giesy
- Toxicology Centre, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
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24
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Zhang Y, Zhang H, Tian S, Zhang L, Li W, Wang W, Yan X, Han N, Zhang X. The Photocatalysis-Enhanced TiO 2@HPAN Membrane with High TiO 2 Surface Content for Highly Effective Removal of Cationic Dyes. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:9415-9428. [PMID: 34310152 DOI: 10.1021/acs.langmuir.1c01066] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The elimination of dye pollutants from wastewater is a significant concern that has prompted extensive research into the development of highly efficient photocatalytic membranes. A novel method was proposed to prepare photocatalysis-enhanced poly(acrylonitrile-methyl acrylate) (PAN-based) membranes in this study. In detail, the blended membrane containing SiO2@TiO2 nanoparticles with a shell-core structure was first prepared via thermal-induced phase separation. The SiO2 nanoshells were dissolved, and the released TiO2 nanoparticles migrated to the membrane surface during a simple hydrolysis process, which prevents the TiO2 nanoparticles from directly contacting or interacting with the polymer matrix. The hydrogen bonds bind the exposed TiO2 with the PAN membrane surface, resulting in the formation of the TiO2@HPAN hybrid membrane. The photocatalytic efficiency of the TiO2@HPAN membrane doubled compared with that of nonhydrolyzed membranes. In the presence of UV light, the hybrid membrane can degrade 99.8% of methylene blue solution in less than 2 h, compared to only 86.1% for the blended membranes. Further, the TiO2@HPAN membrane showed excellent photocatalytic activity for cationic dyes due to electrostatic attraction. Moreover, the high-flux recovery rate and recycling stability of the TiO2@HPAN membrane lead to an excellent antifouling property. The facile preparation method proposed in this work shows extraordinary potential for the development of highly efficient selective photocatalytic materials for cationic dyes to be used in wastewater treatment applications.
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Affiliation(s)
- Yaqi Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Haoran Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Shiwei Tian
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Longfei Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Wei Li
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Wei Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xuhuan Yan
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Na Han
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xingxiang Zhang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
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25
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Kujawa J, Al-Gharabli S, Muzioł TM, Knozowska K, Li G, Dumée LF, Kujawski W. Crystalline porous frameworks as nano-enhancers for membrane liquid separation – Recent developments. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.213969] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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26
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Su R, Li S, Wu W, Song C, Liu G, Yu Y. Recent progress in electrospun nanofibrous membranes for oil/water separation. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.117790] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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27
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Mallakpour S, Azadi E, Hussain CM. Emerging new-generation hybrids based on covalent organic frameworks for industrial applications. NEW J CHEM 2021. [DOI: 10.1039/d1nj00609f] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
This review highlights the advancement of COF hybrid-based materials for diverse industrial applications.
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Affiliation(s)
- Shadpour Mallakpour
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
| | - Elham Azadi
- Organic Polymer Chemistry Research Laboratory
- Department of Chemistry
- Isfahan University of Technology
- Isfahan
- Islamic Republic of Iran
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28
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Hydrophilicity reversal by post-modification: Hydrophobic zeolite FAU and LTA coatings on stainless-steel-net for oil/water separation. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.124936] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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29
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Cai Y, Chen D, Li N, Xu Q, Li H, He J, Lu J. A Self-Cleaning Heterostructured Membrane for Efficient Oil-in-Water Emulsion Separation with Stable Flux. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e2001265. [PMID: 32406157 DOI: 10.1002/adma.202001265] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/03/2020] [Accepted: 04/14/2020] [Indexed: 06/11/2023]
Abstract
Lack of clean water is a major global challenge. Membrane separation technology is an ideal choice for the treatment of industrial, domestic sewage owing to its low energy consumption and cost. However, membranes are highly susceptible to contamination, particularly during wastewater treatment, which has limited their practical applications in this field. Similarly, the flux of the membrane decreases with prolonged use due to its reduced interlayer spacing. Preparation of membranes with anticontamination properties and stable flux is the key to addressing this problem. In this study, a 2D heterostructure membrane with visible-light-driven self-cleaning performance is prepared via a self-assembly process. Notably, the addition of palygorskite increases the interlayer spacing of the graphene and heterojunction structures, which increases the flux of the membrane and avoids a decrease of the interlayer spacing of the membrane under pressure. The presence of a heterojunction with visible light catalytic properties effectively avoids membrane fouling and avoids a sharp decrease of the permeation flux. Importantly, the prepared 2D membrane has excellent separation performance for oil-water emulsions with both high flux and efficiency. These features suggest great potential for the prepared 2D membrane in wastewater treatment applications.
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Affiliation(s)
- Yahui Cai
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Dongyun Chen
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Najun Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Qingfeng Xu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Hua Li
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Jinghui He
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
| | - Jianmei Lu
- Collaborative Innovation Center of Suzhou Nano Science and Technology, College of Chemistry Chemical Engineering and Materials Science Soochow University, 199 Ren'ai Road, Suzhou, 215123, P. R. China
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