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Paul J, Qamar A, Ahankari SS, Thomas S, Dufresne A. Chitosan-based aerogels: A new paradigm of advanced green materials for remediation of contaminated water. Carbohydr Polym 2024; 338:122198. [PMID: 38763724 DOI: 10.1016/j.carbpol.2024.122198] [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: 11/22/2023] [Revised: 03/23/2024] [Accepted: 04/21/2024] [Indexed: 05/21/2024]
Abstract
Chitosan (CS) aerogels are highly porous (∼99 %), exhibit ultralow density, and are excellent sorbents for removing ionic pollutants and oils/organic solvents from water. Their abundant hydroxyl and amino groups facilitate the adsorption of ionic pollutants through electrostatic interaction, complexation and chelation mechanisms. Selection of suitable surface wettability is the way to separate oils/organic solvents from water. This review summarizes the most recent developments in improving the adsorption performance, mechanical strength and regeneration of CS aerogels. The structure of the paper follows the extraction of chitosan, preparation and sorption characteristics of CS aerogels for heavy metal ions, organic dyes, and oils/organic solvents, sequentially. A detailed analysis of the parameters that influence the adsorption/absorption performance of CS aerogels is carried out and their effective control for improving the performance is suggested. The analysis of research outcomes of the recently published data came up with some interesting facts that the unidirectional pore structure and characteristics of the functional group of the aerogel and pH of the adsorbate have led to the enhanced adsorption performance of the CS aerogel. Finally, the excerpts of the literature survey highlighting the difficulties and potential of CS aerogels for water remediation are proposed.
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Affiliation(s)
- Joyel Paul
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Ahsan Qamar
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India
| | - Sandeep S Ahankari
- School of Mechanical Engineering, Vellore Institute of Technology, Vellore, Tamil Nadu 632014, India.
| | - Sabu Thomas
- School of Polymer Science and Technology, IIUCNN, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686 560, India; School of Nanoscience, IIUCNN, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686 560, India; School of Energy Science, IIUCNN, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686 560, India; School of Chemical Sciences, IIUCNN, Mahatma Gandhi University, Priyadarshini Hills, Kottayam, Kerala 686 560, India; Department of Chemical Sciences (formerly Applied Chemistry), University of Johannesburg, P.O. Box 17011, Doornfontein, 2028 Johannesburg, South Africa
| | - Alain Dufresne
- Université Grenoble Alpes, CNRS, Grenoble INP, LGP2, F-38000 Grenoble, France
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Chen C, Xiong L, Cui Y, Wang C. Preparation, Air Filtration Performance of a Fluorinated Polyimide/Polyacrylonitrile Nanofibrous Membrane by Electrospinning. Polymers (Basel) 2024; 16:1240. [PMID: 38732709 PMCID: PMC11085581 DOI: 10.3390/polym16091240] [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: 03/30/2024] [Revised: 04/16/2024] [Accepted: 04/25/2024] [Indexed: 05/13/2024] Open
Abstract
This paper reports the successful fabrication of a new nanofibrous membrane, F-PI/PAN, through electrospinning of polyacrylonitrile (PAN) and fluorinated polyimide (F-PI). The nanofibrous membrane exhibits comprehensive properties for high-temperature filtration and robust PM2.5 (particulate matter with an aerodynamic equivalent diameter of 2.5 microns or less) removal. The introduction of F enhances the hydrophobicity of the PI. The relationship between the hydrophobic performance and the filtration performance of particles is investigated. The chemical group of the composite membrane was demonstrated using FITR, while the surface morphology was investigated using field emission scanning electron microscopy. The TGA results indicated good thermal stability at 300 °C. Various ratios of F-PI membranes were prepared to characterize the change in properties, with the optimal mass ratio of F-PI being 20 wt%. As the proportion of F-PI increases, its mechanical and filtration efficiency properties and hydrophobicity become stronger. The contact angle reaches its maximum of 128 ± 5.2° when PAN:F-PI = 6:4. Meanwhile, when PAN:F-PI = 8:2, the filtration efficiency reaches 99.4 ± 0.3%, and the elongation at break can reach 76%. The fracture strength can also reach 7.1 MPa, 1.63 times that of the pure PAN membrane.
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Affiliation(s)
- Chen Chen
- School of Materials Science and Engineering, Shanghai University of Engineering Science, Shanghai 201620, China
- Key Laboratory of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai 201620, China
| | - Lulu Xiong
- Shanghai Dajue Packaging Products Co., Shanghai 201620, China
| | - Yahui Cui
- Energy Bureau of Xiangyuan County, Changzhi 046200, China
| | - Chaosheng Wang
- Key Laboratory of High Performance Fibers & Products, Ministry of Education, Donghua University, Shanghai 201620, China
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Skvortsov IY, Kuzin MS, Gerasimenko PS, Mironova MV, Golubev YV, Kulichikhin VG. Non-Coagulant Spinning of High-Strength Fibers from Homopolymer Polyacrylonitrile Synthesized via Anionic Polymerisation. Polymers (Basel) 2024; 16:1185. [PMID: 38732654 PMCID: PMC11085752 DOI: 10.3390/polym16091185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2024] [Revised: 04/16/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
The rheological properties, spinnability, and thermal-oxidative stabilization of high-molecular-weight linear polyacrylonitrile (PAN) homopolymers (molecular weights Mη = 90-500 kg/mol), synthesized via a novel metal-free anionic polymerization method, were investigated to reduce coagulant use, enable solvent recycling, and increase the carbon yield of the resulting carbon fibers. This approach enabled the application of the mechanotropic (non-coagulating) spinning method for homopolymer PAN solutions in a wide range of molecular weights and demonstrated the possibility of achieving a high degree of fiber orientation and reasonable mechanical properties. Rheological analysis revealed a significant increase in solution elasticity (G') with increasing molecular weight, facilitating the choice of optimal deformation rates for effective chain stretching prior to strain-induced phase separation during the eco-friendly spinning of concentrated solutions without using coagulation baths. The possibility of collecting ~80 wt% of the solvent at the first stage of spinning from the as-spun fibers was shown. Transparent, defect-free fibers with a tensile strength of up to 800 MPa and elongation at break of about 20% were spun. Thermal treatment up to 1500 °C yielded carbon fibers with a carbon residue of ~50 wt%, in contrast to ~35 wt% for industrial radically polymerized PAN carbonized under the same conditions.
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Affiliation(s)
- Ivan Yu. Skvortsov
- A.V. Topchiev Institute of Petrochemical Synthesis Russian Academy of Sciences, 119991 Moscow, Russia; (M.S.K.); (P.S.G.); (M.V.M.); (Y.V.G.); (V.G.K.)
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Li B, Qi B, Guo Z, Wang D, Jiao T. Recent developments in the application of membrane separation technology and its challenges in oil-water separation: A review. CHEMOSPHERE 2023; 327:138528. [PMID: 36990363 DOI: 10.1016/j.chemosphere.2023.138528] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 03/15/2023] [Accepted: 03/26/2023] [Indexed: 06/19/2023]
Abstract
In the development and production process of domestic and foreign oil fields, large amounts of oil-bearing wastewater with complex compositions containing toxic and harmful pollutants are generated. These oil-bearing wastewaters will cause serious environmental pollution if they are not effectively treated before discharge. Among these wastewaters, the oily sewage produced in the process of oilfield exploitation has the largest content of oil-water emulsion. In order to solve the problem of oil-water separation of oily sewage, the paper summarizes the research of many scholars in many aspects, such as the use of physical and chemical methods such as air flotation and flocculation, or the use of mechanical methods such as centrifuges and oil booms for sewage treatment. Comprehensive analysis shows that among these oil-water separation methods, membrane separation technology has higher separation efficiency in the separation of general oil-water emulsions than other methods and also exhibits a better separation effect for stable emulsions, which has a broader application prospect for future developments. To present the characteristics of different types of membranes more intuitively, this paper describes the applicable conditions and characteristics of various types of membranes in detail, summarizes the shortcomings of existing membrane separation technologies, and offers prospects for future research directions.
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Affiliation(s)
- Bingfan Li
- School of Vehicles and Energy, Yanshan University, Qinhuangdao, 066004, China
| | - Bo Qi
- School of Vehicles and Energy, Yanshan University, Qinhuangdao, 066004, China
| | - Ziyuan Guo
- School of Vehicles and Energy, Yanshan University, Qinhuangdao, 066004, China
| | - Dongxu Wang
- China Suntien Green Energy Co., Ltd., Shijiazhuang, 050000, China
| | - Tifeng Jiao
- State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao, 066004, China.
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Shakiba M, Abdouss M, Mazinani S, Reza Kalaee M. Super-hydrophilic electrospun PAN nanofibrous membrane modified with alkaline treatment and ultrasonic-assisted PANI in-situ polymerization for highly efficient gravity-driven oil/water separation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.123032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Yang J, Lin L, Wang Q, Ma W, Li X, Liu Z, Yang X, Xu M, Cheng Q, Zhao K, Zhao J. Engineering a superwetting membrane with spider-web structured carboxymethyl cellulose gel layer for efficient oil-water separation based on biomimetic concept. Int J Biol Macromol 2022; 222:2603-2614. [DOI: 10.1016/j.ijbiomac.2022.10.043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 09/22/2022] [Accepted: 10/06/2022] [Indexed: 11/05/2022]
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Jin Y, Huang L, Zheng K, Zhou S. Blending Electrostatic Spinning Fabrication of Superhydrophilic/Underwater Superoleophobic Polysulfonamide/Polyvinylpyrrolidone Nanofibrous Membranes for Efficient Oil-Water Emulsion Separation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2022; 38:8241-8251. [PMID: 35772102 DOI: 10.1021/acs.langmuir.2c00640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The scarcity of water resources has led to widespread interest in the treatment of oily wastewater. This study prepared a novel superhydrophilic/underwater superoleophobic polysulfonamide (PSA)/polyvinylpyrrolidone (PVP) nanofibrous membrane through electrostatic spinning for efficient oil-water emulsion separation. The surface morphology, fiber diameter distribution, wettability properties, and oil-water emulsion separation performance of the membranes were investigated. Results showed that the addition of PVP increases the diameter of the fibers, which led to a loose, large, porous structure and improved the permeability of the membranes. A high pure-water flux of 2057 L·m-2·h-1 was obtained for membranes with PVP addition of 3 wt%, providing an 835% increase in pure-water flux compared with a pure PSA nanofibrous membrane (220 L·m-2·h-1). For n-hexane-in-water emulsions, the optimum membrane obtained a high separation efficiency of 99.7%, in which flux was 1.5 times greater than that of the pure PSA nanofibrous membrane. Moreover, the optimum membrane exhibited good recycling stability and solvent resistance. The as-prepared PSA/PVP nanofibrous membrane displayed high permeability, an outstanding rejection rate, resistance to organic solvents, and reusability for oil-water separation, providing great potential in practical membrane separation applications.
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Affiliation(s)
- Yuting Jin
- School of Environment and Energy, Guangzhou Higher Education Mega Center, South China University of Technology, Guangzhou 510006, PR China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou 510006, PR China
| | - Longwei Huang
- School of Environment and Energy, Guangzhou Higher Education Mega Center, South China University of Technology, Guangzhou 510006, PR China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou 510006, PR China
| | - Ke Zheng
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, PR China
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550003, China
| | - Shaoqi Zhou
- School of Environment and Energy, Guangzhou Higher Education Mega Center, South China University of Technology, Guangzhou 510006, PR China
- School of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, PR China
- College of Resource and Environmental Engineering, Guizhou University, Guiyang 550003, China
- The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education, Guangzhou Higher Education Mega Centre, South China University of Technology, Guangzhou 510006, PR China
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Li H, Zhang H, Hu JJ, Wang GF, Cui JQ, Zhang YF, Zhen Q. Facile Preparation of Hydrophobic PLA/PBE Micro-Nanofiber Fabrics via the Melt-Blown Process for High-Efficacy Oil/Water Separation. Polymers (Basel) 2022; 14:polym14091667. [PMID: 35566835 PMCID: PMC9104379 DOI: 10.3390/polym14091667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/14/2022] [Accepted: 04/18/2022] [Indexed: 02/04/2023] Open
Abstract
Polylactic acid (PLA) micro-nanofiber fabrics with a large specific surface area and excellent biodegradability are commonly used in oil/water separation; however, challenges remain due to their poor mechanical properties. Herein, a thermoplastic polylactic acid/propylene-based elastomer (PLA/PBE) polymer was prepared by blending PLA with PBE. Then, PLA/PBE micro-nanofiber fabrics were successfully prepared using a melt-blown process. The results show that the PLA/PBE micro-nanofiber fabric has a three-dimensional porous structure, improving the thermal stability and fluidity of the PLA/PBE blended polymers. The PLA/PBE micro-nanofiber fabric demonstrated a significantly reduced average fiber diameter and an enhanced breaking strength. Moreover, the water contact angle of the prepared samples is 134°, which suggests a hydrophobic capacity. The oil absorption rate of the fabric can reach 10.34, demonstrating excellent oil/water separation performance. The successful preparation of PLA/PBE micro-nanofiber fabrics using our new method paves the way for the large-scale production of promising candidates for high-efficacy oil/water separation applications.
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Affiliation(s)
- Han Li
- School of Textile, Zhongyuan University of Technology, Zhengzhou 451191, China; (H.L.); (Y.-F.Z.)
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
| | - Heng Zhang
- School of Textile, Zhongyuan University of Technology, Zhengzhou 451191, China; (H.L.); (Y.-F.Z.)
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
- Correspondence: ; Tel.: +86-156-3902-5712
| | - Jun-Jie Hu
- Shanghai Earntz Nonwoven Co., Ltd., No. 88, Jiangong Road, Jinshan District, Shanghai 201501, China;
| | - Guo-Feng Wang
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
- Henan Tuoren Medical Device Co., Ltd., Tuoren Industrial Zone, No. 1 Yangze Road, Xinxiang 453400, China
| | - Jing-Qiang Cui
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
- Henan Tuoren Medical Device Co., Ltd., Tuoren Industrial Zone, No. 1 Yangze Road, Xinxiang 453400, China
| | - Yi-Feng Zhang
- School of Textile, Zhongyuan University of Technology, Zhengzhou 451191, China; (H.L.); (Y.-F.Z.)
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
| | - Qi Zhen
- Henan Key Laboratory of Medical Polymer Materials Technology and Application, No. 1 Yangze Road, Xinxiang 453400, China; (G.-F.W.); (J.-Q.C.); (Q.Z.)
- School of Clothing, Zhongyuan University of Technology, No. 1 Huaihe Road, Zhengzhou 451191, China
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Dmitrieva ES, Anokhina TS, Novitsky EG, Volkov VV, Borisov IL, Volkov AV. Polymeric Membranes for Oil-Water Separation: A Review. Polymers (Basel) 2022; 14:polym14050980. [PMID: 35267801 PMCID: PMC8912433 DOI: 10.3390/polym14050980] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/17/2022] [Accepted: 02/20/2022] [Indexed: 02/01/2023] Open
Abstract
This review is devoted to the application of bulk synthetic polymers such as polysulfone (PSf), polyethersulfone (PES), polyacrylonitrile (PAN), and polyvinylidene fluoride (PVDF) for the separation of oil-water emulsions. Due to the high hydrophobicity of the presented polymers and their tendency to be contaminated with water-oil emulsions, methods for the hydrophilization of membranes based on them were analyzed: the mixing of polymers, the introduction of inorganic additives, and surface modification. In addition, membranes based on natural hydrophilic materials (cellulose and its derivatives) are given as a comparison.
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Affiliation(s)
| | - Tatyana S. Anokhina
- Correspondence: ; Tel.: +7-(495)-647-59-27 (ext. 202); Fax: +7-(495)-633-85-20
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Xu T, Zhang J, Guo H, Zhao W, Li Q, Zhu Y, Yang J, Bai J, Zhang L. Antifouling Fibrous Membrane Enables High Efficiency and High-Flux Microfiltration for Water Treatment. ACS APPLIED MATERIALS & INTERFACES 2021; 13:49254-49265. [PMID: 34633173 DOI: 10.1021/acsami.1c11316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Membrane biofouling has long been a major obstacle to highly efficient water treatment. The modification of the membrane surface with hydrophilic materials can effectively enhance biofouling resistance. However, the water flux of the membranes is often compromised for the improvement of antifouling properties. In this work, a composite membrane composed of a zwitterionic hydrogel and electrospinning fibers was prepared by a spin-coating and UV cross-linking process. At the optimum conditions, the composite membrane could effectively resist the biofouling contaminations, as well as purify polluted water containing bacteria or diatoms with a high flux (1349.2 ± 85.5 L m-2 h-1 for 106 CFU mL-1 of an Escherichia coli solution). Moreover, compared with the commercial poly(ether sulfone) (PES) membrane, the membrane displayed an outstanding long-term filtration performance with a lower water flux decline. Therefore, findings in this work provide an effective antifouling modification strategy for microfiltration membranes and hold great potential for developing antifouling membranes for water treatment.
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Affiliation(s)
- Tong Xu
- Collage of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Jiamin Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Hongshuang Guo
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Weiqiang Zhao
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Qingsi Li
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Yingnan Zhu
- School of Pharmaceutical Sciences, Center for Drug Safety Evaluation and Research, Zhengzhou University, Zhengzhou 450001, China
| | - Jing Yang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
| | - Jie Bai
- Collage of Chemical Engineering, Inner Mongolia University of Technology, Hohhot, Inner Mongolia 010051, China
| | - Lei Zhang
- Department of Biochemical Engineering, Frontier Science Center for Synthetic Biology and Key Laboratory of Systems Bioengineering (MOE), School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
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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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