1
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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: 16] [Impact Index Per Article: 16.0] [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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2
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Hanif MA, Shin H, Chun D, Kim HG, Kwac LK, Kim YS. Photocatalytic VOCs Degradation Efficiency of Polypropylene Membranes by Incorporation of TiO 2 Nanoparticles. MEMBRANES 2022; 13:50. [PMID: 36676857 PMCID: PMC9860631 DOI: 10.3390/membranes13010050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/16/2022] [Accepted: 12/27/2022] [Indexed: 06/17/2023]
Abstract
A class of serious environmental contaminants related to air, namely volatile organic compounds (VOCs), has currently attracted global attention. The present study aims to remove harmful VOCs using as-prepared polypropylene membrane + TiO2 nanoparticles (PPM + TiO2 NPs) via the photocatalytic gas bag A method under UV light irradiation. Here, formaldehyde was used as the target VOC. The PPM + TiO2 NPs material was systematically characterized using various microscopic and spectroscopic techniques, including field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, Fourier-transform infrared spectroscopy, ultraviolet-visible diffuse reflectance spectroscopy, photoluminescence spectroscopy, and contact angle measurements. These results confirm the successful preparation of PPM + TiO2 NPs, which can be applied to the degradation of VOCs. Photocatalytic degradation of formaldehyde gas reached 70% within 1 h of UV illumination. The energy bandgap and photoluminescence intensity reductions are responsible for the improved photocatalytic activity. These characteristics increase the charge transport while decreasing the recombination of electron-hole pairs.
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Affiliation(s)
- Md. Abu Hanif
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Hyokyeong Shin
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Danbi Chun
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
| | - Hong Gun Kim
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
- Graduate School of Carbon Convergence Engineering, Jeonju University, Jeonju 55069, Republic of Korea
| | - Lee Ku Kwac
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
- Graduate School of Carbon Convergence Engineering, Jeonju University, Jeonju 55069, Republic of Korea
| | - Young Soon Kim
- Institute of Carbon Technology, Jeonju University, Jeonju 55069, Republic of Korea
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3
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Li TT, Li S, Sun F, Shiu BC, Ren HT, Lou CW, Lin JH. pH-responsive nonwoven fabric with reversibly wettability for controllable oil-water separation and heavy metal removal. ENVIRONMENTAL RESEARCH 2022; 215:114355. [PMID: 36154855 DOI: 10.1016/j.envres.2022.114355] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 08/23/2022] [Accepted: 09/12/2022] [Indexed: 06/16/2023]
Abstract
Removal of organic solvents and heavy metals in effluents is of great significance to environmental pollution control and ecological civilization construction. pH-responsive materials have unique advantages in treating complicated oily wastewater. In this work, an intelligent pH-responsive nonwoven fabric with excellent reversible wettability was prepared. The pH-sensitive polymer was synthesized by free radical polymerization (FRP) technique, then dipped with SiO2 on PP fabric. The particular molecular structure of poly (dimethylaminoethyl methacrylate) (PDMAEMA) enabled the fabric surface to switch wettability rapidly between hydrophilic/underwater oleophobic and oleophobic/hydrophobic under pH stimulus and exhibit controllable selective separation of various oil/water mixtures. Furthermore, the fabric removed Pb2+ efficiently under a wide pH range. The experimetal results showed that the separation flux reached 19,229 ± 1656.43 L-h-1-m-2 for water and 19,342 ± 1796.77 L-m-2-h-1 for n-hexane. Besides, the obtained fabric effectively realized the separation and collection process of complex ternary mixtures. The fabric removed Pb2+ in solutions with efficiency up to 90.83%. After immersing in acid and alkali solutions for 24 h, no significant damage to the surface wettability. This economical and intelligent fabric is able to meet the different separation purposes of industrial wastewaters with complex compositions.
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Affiliation(s)
- Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin, 300387, China
| | - Shuxia Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Fei Sun
- Zhejiang Provincial Key Laboratory of Fiber Materials and Manufacturing Technology, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | | | - Hai-Tao Ren
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite Materials, Tiangong University, Tianjin, 300387, China
| | - Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung City, 413305, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan; Fujian Key Laboratory of Novel Functional Textile Fibers and Materials, Minjiang University, Fuzhou, 350108, China.
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; Ocean College, Minjiang University, Fuzhou, 350108, China; Advanced Medical Care and Protection Technology Research Center, Department of Fiber and Composite Materials, Feng Chia University, Taichung City, 407102, Taiwan; School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.
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4
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Andrade-Guel M, Reyes-Rodríguez PY, Cabello-Alvarado CJ, Cadenas-Pliego G, Ávila-Orta CA. Influence of Modified Carbon Black on Nylon 6 Nonwoven Fabric and Performance as Adsorbent Material. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4247. [PMID: 36500869 PMCID: PMC9735733 DOI: 10.3390/nano12234247] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 11/14/2022] [Accepted: 11/22/2022] [Indexed: 06/17/2023]
Abstract
The number of chronic kidney disease (CKD) persons continues to rise in Mexico. They require renal replacement therapy, and in the absence of it, hemodialysis is the major option for their survival. The uremic toxins present in the blood are removed by hemodialysis, which involve membranes. In this study, nonwoven fabrics with modified carbon black nanoparticles in a matrix polymer of Nylon 6 were obtained and evaluated as an adsorbent material of uremic toxins. All nonwoven fabrics were characterized by FTIR, XRD, TGA, SEM, and contact angle measurements and were evaluated as an adsorbent material for the urea toxin and as an albumin retainer. The findings suggest their potential application as a hemodialysis membrane. Nanocomposites had a higher hydrophilic characteristic compared to pure Nylon 6. The average diameter size of the fibers was in the range of 5 to 50 μm. All nanocomposites nonwoven fabrics showed high removal percentages of inulin in a range of 80-85% at 15 min of contact. Most Ny6 Zytel/CB nanocomposites showed a high percentage of urea removal (80 to 90%).
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Affiliation(s)
| | | | - Christian J. Cabello-Alvarado
- Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
- CONACYT—Centro de Investigación en Química Aplicada, Saltillo 25294, Mexico
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5
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Numerical Analysis of Fiber/Air-Coupling Field for Annular Jet. Polymers (Basel) 2022; 14:polym14214630. [DOI: 10.3390/polym14214630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022] Open
Abstract
Melt-blowing technology is an important method for directly preparing micro-nanofiber materials by drawing polymer melts with high temperature and high velocity air flow. During the drawing process, the melt-blowing fiber not only undergoes a phase change, but also has an extremely complex coupling effect with the drawing airflow. Therefore, in the numerical calculation of the flow field, the existence of melt-blowing fibers is often ignored. In this paper, based on the volume of fluid method, a numerical study of the flexible fiber/air-coupling flow field of an annular melt-blowing die is carried out with the aid of computational fluid dynamics software. The results show that the pressure distribution in the different central symmetry planes of the ring die at the same time was basically the same. However, the velocity distribution may have been different; the velocity on the spinning line varied with time; the pressure changes on the spinning line were small; and velocity fluctuations around the spinning line could cause whiplash of the fibers.
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6
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Sarbatly R, Chiam CK. An Overview of Recent Progress in Nanofiber Membranes for Oily Wastewater Treatment. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12172919. [PMID: 36079957 PMCID: PMC9458146 DOI: 10.3390/nano12172919] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 07/29/2022] [Accepted: 08/08/2022] [Indexed: 06/01/2023]
Abstract
Oil separation from water becomes a challenging issue in industries, especially when large volumes of stable oil/water emulsion are discharged. The present short review offers an overview of the recent developments in the nanofiber membranes used in oily wastewater treatment. This review notes that nanofiber membranes can efficiently separate the free-floating oil, dispersed oil and emulsified oil droplets. The highly interconnected pore structure nanofiber membrane and its modified wettability can enhance the permeation flux and reduce the fouling. The nanofiber membrane is an efficient separator for liquid-liquid with different densities, which can act as a rejector of either oil or water and a coalescer of oil droplets. The present paper focuses on nanofiber membranes' production techniques, nanofiber membranes' modification for flux and separation efficiency improvement, and the future direction of research, especially for practical developments.
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Affiliation(s)
- Rosalam Sarbatly
- Chemical Engineering, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
- Nanofiber and Membrane Research Laboratory, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
| | - Chel-Ken Chiam
- Nanofiber and Membrane Research Laboratory, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
- Oil and Gas Engineering, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia
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7
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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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8
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Wang Y, Shim E, He N, Pourdeyhimi B, Gao W. Modeling the Triboelectric Behaviors of Elastomeric Nonwoven Fabrics. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2022; 34:e2106429. [PMID: 34664763 DOI: 10.1002/adma.202106429] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Revised: 09/30/2021] [Indexed: 06/13/2023]
Abstract
Theoretical modeling of triboelectric nanogenerators (TENGs) is fundamental to their performance optimization, since it can provide useful guidance on the material selection, structure design, and parameter control of relevant systems. Built on the theoretical model of film-based TENGs, here, an analytical model is introduced for conductor-to-dielectric contact-mode nonwoven-based TENGs, which copes with the unique hierarchical structure of nonwovens and details the correlation between the triboelectric output (maximum transferred charge density) and nonwoven structural parameters (thickness, solidity, and average fiber diameter). A series of styrene-ethylene-butylene-styrene nonwoven samples are fabricated through a melt-blowing process to map nonwoven structural features within certain ranges, while an ion-injection protocol is adopted to quantify the triboelectric output with superior consistency and reproducibility. With a database containing structural features and triboelectric output of 43 nonwoven samples, a good model fitting is achieved via nonlinear regression analysis in Python, which also shows good predictive power and suggests the existing of tribo-output maxima at a specific thickness, solidity, or average fiber diameter when other structural parameters are fixed. The model is also successfully applied to a group of polypropylene meltblown nonwovens, which verifies its universality on meltblown-nonwoven-based TENGs.
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Affiliation(s)
- Yanan Wang
- Department of Textile Engineering, Chemistry & Science, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Dr, Raleigh, NC, 27606, USA
| | - Eunkyoung Shim
- Department of Textile Engineering, Chemistry & Science, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Dr, Raleigh, NC, 27606, USA
| | - Nanfei He
- Department of Textile Engineering, Chemistry & Science, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Dr, Raleigh, NC, 27606, USA
| | - Behnam Pourdeyhimi
- Department of Textile Engineering, Chemistry & Science, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Dr, Raleigh, NC, 27606, USA
- The Nonwovens Institute, North Carolina State University, 1010 Main Campus Dr, Raleigh, NC, 27606, USA
| | - Wei Gao
- Department of Textile Engineering, Chemistry & Science, Wilson College of Textiles, North Carolina State University, 1020 Main Campus Dr, Raleigh, NC, 27606, USA
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9
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Sun F, Li TT, Zhang X, Shiu BC, Zhang Y, Ren HT, Peng HK, Lin JH, Lou CW. In situ growth polydopamine decorated polypropylen melt-blown membrane for highly efficient oil/water separation. CHEMOSPHERE 2020; 254:126873. [PMID: 32957285 DOI: 10.1016/j.chemosphere.2020.126873] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 04/18/2020] [Accepted: 04/21/2020] [Indexed: 06/11/2023]
Abstract
The removal of organic pollutants from water is highly desired because of the development of industrial and social economy. Superhydrophilic and underwater superoleophobic membranes are emerging materials for effective oil/water separation. In this paper, superhydrophilic and underwater superoleophobic polypropylene (PP) melt-blown membranes were prepared through melt-blown and in situ growth method, achieving highly efficient oil/water separation. After in situ growth, polydopamine (PDA) grows on the surface of PP fibers, and the addition of coupling agent (3-aminopropyltriethoxysilane, APTES) can improve the stability of the membrane in harsh environments (1 M HCl, 1 M NaOH, 1 M NaCl). The PDA/APTES@PP membrane could dramatically enhance the wetting (water contact angle ∼0, underwater oil contact angle∼154°) compare with the pristine PP melt-blown membrane (water contact angle ∼130°, underwater oil contact angle ∼0). Moreover, the filtration performance is at a high level (∼99%). The behaviors are comparable or even superior to the typical reported results in the references (such as the mussel-inspired superhydrophilic PVDF membrane and copper mesh). This method provides a facile route to prepared multi-functional membrane for highly efficiency oil/water separation and industrial oily wastewater remediation.
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Affiliation(s)
- Fei Sun
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China
| | - Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China.
| | - Xiayun Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | | | - Yue Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Hai-Tao Ren
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Hao-Kai Peng
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; Ocean College, Minjiang University, Fuzhou, 350108, China; Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan; Department of Fashion Design, Asia University, Taichung, 41354, Taiwan; Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Shandong, 266071, China; School of Chinese Medicine, China Medical University, Taichung, 40402, Taiwan.
| | - Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin, 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin, 300387, China; Ocean College, Minjiang University, Fuzhou, 350108, China; Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Shandong, 266071, China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung, 41354, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, 40402, Taiwan.
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10
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Sun F, Ren HT, Li TT, Huang SY, Zhang Y, Lou CW, Lin JH. Bioinspired design of underwater superoleophobic Poly(N-isopropylacrylamide)/ polyacrylonitrile/TiO 2 nanofibrous membranes for highly efficient oil/water separation and photocatalysis. ENVIRONMENTAL RESEARCH 2020; 186:109494. [PMID: 32302872 DOI: 10.1016/j.envres.2020.109494] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 03/26/2020] [Accepted: 04/04/2020] [Indexed: 06/11/2023]
Abstract
Inspired by fish scales, this study prepares a thermo-responsive underwater oleophobic PNIPAM/PAN/TiO2 nanofibrous membranes by traditional electrospinning technique using poly-N-isopropylacrylamide (PNIPAM) and polyacrylonitrile (PAN). Thermal properties, mechanical properties, surface chemical composition, wettability, photocatalysis, and oil/water separation of PNIPAM/PAN/TiO2 membrane are explored compared to pure PNIPAM membrane. Result reveals that PAN/TiO2 compounds make PNIPAM membrane with a smaller fiber diameter of 141 nm and high tensile stress of 7.4 MPa, and also decompose 98% of rhodamine B after UV light radiation. This bioinspired design structure endows the membrane with superhydrophilicity with a low water contact angle, and underwater superoleophobicity with a high oil contact angle of 157° (petroleum ether) and 151° (dichloromethane). This membrane can efficiency separate oil/water mixture with a high separation efficiency. Moreover, the resultant PNIPAM/PAN/TiO2 membrane has the bionic fish scale structure, and has wettability respond at lower critical solution temperature making the water flux decreased from 10013 ± 367 L m-2·h-1 to 7713 ± 324 L m-2·h-1, and thus has a potential to be used in purification of reclaimed water and separation of oil from water.
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Affiliation(s)
- Fei Sun
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China
| | - Hai-Tao Ren
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Ting-Ting Li
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China.
| | - Shih-Yu Huang
- Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fuzhou 350108, China
| | - Yue Zhang
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Ching-Wen Lou
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fuzhou 350108, China; Department of Bioinformatics and Medical Engineering, Asia University, Taichung 41354, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 40402, Taiwan; Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Shandong 266071, China.
| | - Jia-Horng Lin
- Innovation Platform of Intelligent and Energy-Saving Textiles, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China; State Key Laboratory of Separation Membranes and Membrane Processes, Tiangong University, Tianjin 300387, China; Department of Chemical Engineering and Materials, Ocean College, Minjiang University, Fuzhou 350108, China; Advanced Medical Care and Protection Technology Research Center, College of Textile and Clothing, Qingdao University, Shandong 266071, China; Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite Materials, Feng Chia University, Taichung 40724, Taiwan; Department of Fashion Design, Asia University, Taichung 41354, Taiwan; School of Chinese Medicine, China Medical University, Taichung 40402, Taiwan.
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11
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Sun F, Li T, Zhang X, Shiu B, Zhang Y, Lou C, Lin J. Preparation and
oil–water
separation evaluations of polypropylene/low‐melt‐point polyester composites reinforced by thermal bonding and one‐step solution immersion. POLYM INT 2020. [DOI: 10.1002/pi.6010] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Fei Sun
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
| | - Ting‐Ting Li
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
- Tianjin and Ministry of Education Key Laboratory for Advanced Textile Composite MaterialsTiangong University Tianjin China
| | - Xiayun Zhang
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
| | | | - Yue Zhang
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
| | - Ching‐Wen Lou
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
- Ocean CollegeMinjiang University Fuzhou China
- Department of Bioinformatics and Medical EngineeringAsia University Taichung Taiwan
- Department of Medical ResearchChina Medical University Hospital, China Medical University Taichung Taiwan
- Advanced Medical Care and Protection Technology Research Center, College of Textile and ClothingQingdao University Shandong China
| | - Jia‐Horng Lin
- Innovation Platform of Intelligent and Energy‐Saving Textiles, School of Textile Science and EngineeringTiangong University Tianjin China
- Ocean CollegeMinjiang University Fuzhou China
- Advanced Medical Care and Protection Technology Research Center, College of Textile and ClothingQingdao University Shandong China
- Laboratory of Fiber Application and Manufacturing, Department of Fiber and Composite MaterialsFeng Chia University Taichung Taiwan
- Department of Fashion DesignAsia University Taichung Taiwan
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Zhang H, Zhen Q, Cui JQ, Liu RT, Zhang YF, Qian XM, Liu Y. Groove-shaped polypropylene/polyester micro/nanofibrous nonwoven with enhanced oil wetting capability for high oil/water separation. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122356] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Particle Image Velocimetry (PIV) Investigation of the Turbulent Airflow in Slot-Die Melt Blowing. Polymers (Basel) 2020; 12:polym12020279. [PMID: 32023960 PMCID: PMC7077474 DOI: 10.3390/polym12020279] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Revised: 01/13/2020] [Accepted: 01/21/2020] [Indexed: 11/22/2022] Open
Abstract
In order to explore the forming mechanism of the fiber whipping motion in slot-die melt blowing, the turbulent airflow in slot-die melt blowing was measured online with the approach of the Particle Image Velocimetry (PIV) technique. The PIV results visualized the structure of the turbulent airflow and provided the distributions of air velocity components (vx, vy, and vz). Moreover, the PIV results also demonstrated the evolutive process of turbulent airflow at successive time instants. By comparing the characteristics of the turbulent airflow with the fiber whipping path, the PIV results provide a preliminary explanation for the specific fiber whipping motion in slot-die melt blowing.
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Nasir A, Masood F, Yasin T, Hameed A. Progress in polymeric nanocomposite membranes for wastewater treatment: Preparation, properties and applications. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.052] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Influence of Organo-Sepiolite on the Morphological, Mechanical, and Rheological Properties of PP/ABS Blends. Polymers (Basel) 2019; 11:polym11091493. [PMID: 31547421 PMCID: PMC6780420 DOI: 10.3390/polym11091493] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 09/07/2019] [Accepted: 09/10/2019] [Indexed: 11/21/2022] Open
Abstract
To improve the poor impact toughness of polypropylene (PP), organo-sepiolite (O-Sep) filled 80/20 (w/w) polypropylene/poly(acrylonitrile-butadiene-styrene) (PP/ABS) nanocomposites were fabricated. The contents of O-Sep were correlated with the morphological, mechanical, and rheological behavior of PP/ABS/O-Sep blends. Scanning electron microscopy (SEM) was applied to study the morphology and thermogravimetric analysis (TGA) was applied to study the thermal stability. Differential scanning calorimetry (DSC) and X-ray diffraction (XRD) were applied to study the crystallinity. The obtained results show that O-Sep enhanced the dispersion of ABS in the PP matrix and increased the crystallinity of blends. The rheological results show that O-Sep could increase the viscosity, storage modulus, and loss modulus of blends. Moreover, the mechanical behavior shows that O-Sep (at proper content) simultaneously increased the tensile modulus, flexural modulus, and impact strength of PP/ABS/O-Sep blends.
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