1
|
Hwang YW, Shin TJ, Seo JH, Kim MH, Lee WJ, Ruoff RS, Seong WK, Lee SH. Effect of Sample Geometry on Graphitization of Polyacrylonitrile. Small 2024:e2400301. [PMID: 38712481 DOI: 10.1002/smll.202400301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 04/12/2024] [Indexed: 05/08/2024]
Abstract
In this study, it is analyzed how sample geometry (spheres, nanofibers, or films) influences the graphitization behavior of polyacrylonitrile (PAN) molecules. The chemical bonding and changes in the composition of these three geometries are studied at the oxidation, carbonization, and graphitization stages via scanning electron microscopy (SEM), in situ thermogravimetric-infrared (TGA-IR) analysis, elemental analysis, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The influence of molecular alignment on the graphitization of the three sample geometries is investigated using synchrotron wide-angle X-ray diffraction (WAXD) and transmission electron microscopy (TEM). The effects of molecular alignment at different draw rates during spinning are explored in detail.
Collapse
Affiliation(s)
- Young Woo Hwang
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
- Department of Fiber System Engineering, Dankook University, Yongin, 16890, Republic of Korea
| | - Tae Joo Shin
- Graduate School of Semiconductor Materials and Devices Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Jae Hong Seo
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Min Hyeok Kim
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Won Jun Lee
- Department of Fiber System Engineering, Dankook University, Yongin, 16890, Republic of Korea
| | - Rodney S Ruoff
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- School of Energy and Chemical Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
- Department of Materials Science and Engineering, Ulsan National Institute of Science and Technology (UNIST), Ulsan, 44919, Republic of Korea
| | - Won Kyung Seong
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| | - Sun Hwa Lee
- Center for Multidimensional Carbon Materials, Institute for Basic Science (IBS), Ulsan, 44919, Republic of Korea
| |
Collapse
|
2
|
Fromager B, Cambedouzou J, Marhuenda E, Iskratsch T, Pinault M, Bakalara N, Cornu D. Tunable electrospun scaffolds of polyacrylonitrile loaded with carbon nanotubes: from synthesis to biological applications. Chembiochem 2024; 25:e202300768. [PMID: 38353030 DOI: 10.1002/cbic.202300768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2023] [Revised: 02/03/2024] [Indexed: 03/13/2024]
Abstract
Growing cells in a biomimetic environment is critical for tissue engineering as well as for studying the cell biology underlying disease mechanisms. To this aim a range of 3D matrices have been developed, from hydrogels to decellularized matrices. They need to mimic the extracellular matrix to ensure the optimal growth and function of cells. Electrospinning has gained in popularity due to its capacity to individually tune chemistry and mechanical properties and as such influence cell attachment, differentiation or maturation. Polyacrylonitrile (PAN) derived electrospun fibres scaffolds have shown exciting potential due to reports of mechanical tunability and biocompatibility. Building on previous work we fabricate here a range of PAN fibre scaffolds with different concentrations of carbon nanotubes. We characterize them in-depth in respect to their structure, surface chemistry and mechanical properties, using scanning electron microscopy, image processing, ultramicrotomic transmission electron microscopy, x-ray nanotomography, infrared spectroscopy, atomic force microscopy and nanoindentation. Together the data demonstrate this approach to enable finetuning the mechanical properties, while keeping the structure and chemistry unaltered and hence offering ideal properties for comparative studies of the cellular mechanobiology. Finally, we confirm the biocompatibility of the scaffolds using primary rat cardiomyocytes, vascular smooth muscle (A7r5) and myoblast (C2C12) cell lines.
Collapse
Affiliation(s)
- Bénédicte Fromager
- IEM, Univ Montpellier, CNRS, ENSCM, cc047 Pl. E. Bataillon, 34095, Montpellier, France
| | - Julien Cambedouzou
- IEM, Univ Montpellier, CNRS, ENSCM, cc047 Pl. E. Bataillon, 34095, Montpellier, France
| | - Emilie Marhuenda
- School of Engineering and Materials Science, Queen Mary University Of London, 327 Mile End Rd, Bethnal Green, London, E1 4NS, Royaume-Uni
| | - Thomas Iskratsch
- School of Engineering and Materials Science, Queen Mary University Of London, 327 Mile End Rd, Bethnal Green, London, E1 4NS, Royaume-Uni
| | - Mathieu Pinault
- Univ Paris Saclay, CEA, CNRS, NIMBE,LEDNA, F-91191, Gif Sur Yvette, France
| | - Norbert Bakalara
- CNRS, ENSTBB-Bordeaux INP, Université de Bordeaux, 146 rue Léo Saignat, 33076, Bordeaux, France
| | - David Cornu
- IEM, Univ Montpellier, CNRS, ENSCM, cc047 Pl. E. Bataillon, 34095, Montpellier, France
| |
Collapse
|
3
|
Li X, Dai J, Zhang R, Wen T. Red-Shifted Luminescence of Acrylonitrile-Containing Copolymers: A Matter of One Methyl Unit. Macromol Rapid Commun 2024; 45:e2300666. [PMID: 38134449 DOI: 10.1002/marc.202300666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 12/15/2023] [Indexed: 12/24/2023]
Abstract
Copolymerization provides an effective approach to tune the photophysical properties of non-conventional luminescent polymers (NCLPs). In this study, the controlling of intrinsic emissions of polyacrylonitrile (PAN) copolymers is revealed by a delicate difference of secondary monomers. The introduction of methacrylate comonomers can induce a 70-nm red-shifting in the PL emission of copolymers compared with that of acrylate-containing copolymers. The mechanism of such "copolymerization induced red-shifting" in PAN copolymers is investigated. It is demonstrated that the presence of the α-methyl group in the copolymers can enhance the chain rigidity and through-space conjugation (TSC) of C≡N groups, resulting in the red-shifting of emission.
Collapse
Affiliation(s)
- Xinyu Li
- School of Emergent Soft Matter, Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangdong, Guangzhou, 510640, P. R. China
| | - Junhao Dai
- School of Emergent Soft Matter, Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangdong, Guangzhou, 510640, P. R. China
| | - Rui Zhang
- School of Emergent Soft Matter, Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangdong, Guangzhou, 510640, P. R. China
| | - Tao Wen
- School of Emergent Soft Matter, Guangdong Provincial Key Laboratory of Functional and Intelligent Hybrid Materials and Devices, South China University of Technology, Guangdong, Guangzhou, 510640, P. R. China
| |
Collapse
|
4
|
Zhang Z, Zhang M, Wu J, Hu X, Fu B, Zhang X, Luo B, Khan K, Fang Z, Xu Z, Wu M. Interfacial Plasticization Strategy Enabling a Long-Cycle-Life Solid-State Lithium Metal Battery. Small 2024; 20:e2304234. [PMID: 37994291 DOI: 10.1002/smll.202304234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 10/03/2023] [Indexed: 11/24/2023]
Abstract
The limited ionic conductivity and unstable interface due to poor solid-solid interface pose significant challenges to the stable cycling of solid-state batteries (SSBs). Herein, an interfacial plasticization strategy is proposed by introducing a succinonitrile (SN)-based plastic curing agent into the polyacrylonitrile (PAN)-based composite polymer electrolytes (CPE) interface. The SN at the interface strongly plasticizes the PAN in the CPE, which reduces the crystallinity of the PAN drastically and enables the CPE to obtain a low modulus surface, but it still maintains a high modulus internally. The reduced crystallinity of PAN provides more amorphous regions, which are favorable for Li+ transport. The gradient modulus structure not only ensures intimate interfacial contact but also favors the suppression of Li dendrites growth. Consequently, the interfacial plasticized CPE (SF-CPE) obtains a high ionic conductivity of 4.8 × 10-4 S cm-1 as well as a high Li+ transference number of 0.61. The Li-Li symmetric cell with SF-CPE can cycle for 1000 h at 0.1 mA cm-2, the LiFeO4 (LFP)-Li full-cell demonstrates a high capacity retention of 86.1% after 1000 cycles at 1 C, and the LiCoO2 (LCO)-Li system also exhibits an excellent cycling performance. This work provides a novel strategy for long-life solid-state batteries.
Collapse
Affiliation(s)
- Zhihao Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Ming Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Jintian Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Xin Hu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Bowen Fu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Xingwei Zhang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Bin Luo
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Kashif Khan
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Zixuan Fang
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
| | - Ziqiang Xu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
- Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, China
| | - Mengqiang Wu
- School of Materials and Energy, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, China
- Yangtze Delta Region Institute (HuZhou), University of Electronic Science and Technology of China, Huzhou, Zhejiang, 313001, China
| |
Collapse
|
5
|
Zhang T, He Y, Hu S, Ge J, Chen T, Shan H, Ji T, Yu D, Liu Q. Facile Preparation of Polyacrylonitrile-Based Activated Carbon Fiber Felts for Effective Adsorption of Dipropyl Sulfide. Polymers (Basel) 2024; 16:252. [PMID: 38257052 PMCID: PMC10820270 DOI: 10.3390/polym16020252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2023] [Revised: 12/23/2023] [Accepted: 01/11/2024] [Indexed: 01/24/2024] Open
Abstract
Activated carbon fibers (ACFs) derived from various polymeric fibers with the characteristics of a high specific surface area, developed pore structure, and good flexibility are promising for the new generation of chemical protection clothing. In this paper, a polyacrylonitrile-based ACF felt was prepared via the process of liquid phase pre-oxidation, along with a one-step carbonization and chemical activation method. The obtained ACF felt exhibited a large specific surface area of 2219.48 m2/g and pore volume of 1.168 cm3/g, as well as abundant polar groups on the surface. Owing to the developed pore structure and elaborated surface chemical property, the ACF felt possessed an intriguing adsorption performance for a chemical warfare agent simulant dipropyl sulfide (DPS), with the highest adsorption capacity being 202.38 mg/g. The effects of the initial concentration of DPS and temperature on the adsorption performance of ACF felt were investigated. Meanwhile, a plausible adsorption mechanism was proposed based on the kinetic analysis and fitting of different adsorption isotherm models. The results demonstrated that the adsorption process of DPS onto ACF felt could be well fitted with a pseudo-second-order equation, indicating a synergistic effect of chemical adsorption and physical adsorption. We anticipate that this work could be helpful to the design and development of advanced ACF felts for the application of breathable chemical protection clothing.
Collapse
Affiliation(s)
- Tianhao Zhang
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Yafang He
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Shiqi Hu
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Jianlong Ge
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Tianye Chen
- Jiangsu Sutong Carbon Fiber Co., Ltd., Nantong 226005, China
| | - Haoru Shan
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Tao Ji
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| | - Decheng Yu
- Jiangsu Sutong Carbon Fiber Co., Ltd., Nantong 226005, China
| | - Qixia Liu
- National & Local Joint Engineering Research Center of Technical Fiber Composites for Safety and Protection, School of Textile and Clothing, Nantong University, Nantong 226019, China (H.S.); (T.J.)
| |
Collapse
|
6
|
Danagody B, Bose N, Rajappan K, Iqbal A, Ramanujam GM, Anilkumar AK. Electrospun PAN/PEG Nanofibrous Membrane Embedded with a MgO/gC 3N 4 Nanocomposite for Effective Bone Regeneration. ACS Biomater Sci Eng 2024; 10:468-481. [PMID: 38078836 DOI: 10.1021/acsbiomaterials.3c00892] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2024]
Abstract
Developing biomaterial scaffolds using tissue engineering with physical and chemical surface modification processes can improve the bioactivity and biocompatibility of the materials. The appropriate substrate and site for cell attachment are crucial in cell behavior and biological activities. Therefore, the study aims to develop a conventional electrospun nanofibrous biomaterial using reproducible surface topography, which offers beneficial effects on the cell activities of bone cells. The bioactive MgO/gC3N4 was incorporated on PAN/PEG and fabricated into a nanofibrous membrane using electrospinning. The nanocomposite uniformly distributed on the PAN/PEG nanofiber helps to increase the number of induced pores and reduce the hydrophobicity of PAN. The physiochemical characterization of prepared nanoparticles and nanofibers was carried out using FTIR, X-ray diffraction (XRD), thermogravimetry analysis (TGA), X-ray photoelectron spectroscopy (XPS), and water contact angle measurements. SEM and TEM analyses examined the nanofibrous morphology and the structure of MgO/gC3N4. In vitro studies such as on ALP activity demonstrated the membrane's ability to regenerate new bone and healing capacity. Furthermore, alizarin red staining showed the increasing ability of the cell-cell interaction and calcium content for tissue regeneration. The cytotoxicity of the prepared membrane was about 97.09% of live THP-1 cells on the surface of the MgO/gC3N4@PAN/PEG membrane evaluated using MTT dye staining. The soil burial degradation analysis exhibited that the maximum degradation occurs on the 45th day because of microbial activity. In vitro PBS degradation was observed on the 15th day after the bulk hydrolysis mechanism. Hence, on the basis of the study outcomes, we affirm that the MgO/gC3N4@PAN/PEG nanofibrous membrane can act as a potential bone regenerative substrate.
Collapse
Affiliation(s)
- Balaganesh Danagody
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
| | - Neeraja Bose
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
| | - Kalaivizhi Rajappan
- Department of Chemistry, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
| | - Anwar Iqbal
- School of Chemical Sciences, Universiti Sains Malaysia, Gelugor, Minden, Penang 11800 , Malaysia
| | - Ganesh Munuswami Ramanujam
- Molecular Biology and Immunobiology Division, Interdisciplinary Institute of Indian System of Medicine, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
| | - Aswathy Karanath Anilkumar
- Molecular Biology and Immunobiology Division, Interdisciplinary Institute of Indian System of Medicine, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
- Department of Biotechnology, Faculty of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, Tamilnadu 603203, India
| |
Collapse
|
7
|
Varghese H, Priya K V, Hareesh UNS, Chandran A. Nanofibrous PAN-PDMS Films-Based High-Performance Triboelectric Artificial Whisker for Self-Powered Obstacle Detection. Macromol Rapid Commun 2024; 45:e2300462. [PMID: 37800886 DOI: 10.1002/marc.202300462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 09/24/2023] [Indexed: 10/07/2023]
Abstract
Avoiding collisions is a key necessity for any autonomous mobile robot, and obstacle mapping enables them to maneuver in an uncharted area. In this era of the Internet of Things, with the emerging need for a multitude of sensors, adopting self-powered technologies is more practically viable than batteries for powering the same. Herein, with the fabrication of a triboelectric artificial whisker (TAW), a self-powered obstacle detection is demonstrated via tactile perception. The mechanical contact with the obstacle gives rise to an electrical signal from the TAW owing to the embedded triboelectric sensor. In addition, the triboelectric nanogenerator (TENG) based on electrospun polyacrylonitrile (PAN) nanofibers and polydimethylsiloxane film, which facilitates this self-powered artificial sensation, generates an output voltage of 720 V and current density of 5 mA m-2 with 1.7 W m-2 of maximum power delivery from a force of 10 N. The electro-spinning aided enhancement in contact area of the PAN is responsible for the remarkable improvement in the performance of the TENG, 3.4 times enhancement in power density, when compared to the nonsurface-modified ones. In addition, the TENG is able to charge commercial capacitors up to appreciable values and demonstrates powering different electronic gadgets such as calculators and thermometers.
Collapse
Affiliation(s)
- Harris Varghese
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Vaishna Priya K
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Unnikrishnan Nair Saraswathy Hareesh
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Achu Chandran
- Materials Science and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology (NIIST), Thiruvananthapuram, Kerala, 695019, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| |
Collapse
|
8
|
Almulaiky YQ, Alkabli J, El-Shishtawy RM. Sustainable Immobilization of β-Glucosidase onto Silver Ions and AgNPs-Loaded Acrylic Fabric with Enhanced Stability and Reusability. Polymers (Basel) 2023; 15:4361. [PMID: 38006085 PMCID: PMC10674166 DOI: 10.3390/polym15224361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/02/2023] [Accepted: 11/03/2023] [Indexed: 11/26/2023] Open
Abstract
Modified polymer design has attracted significant attention for enzyme immobilization, offering promising applications. In this study, amine-terminated polymers were synthesized by incorporating functional groups into polyacrylonitrile using hexamethylenediamine. This work highlights the successful enzyme immobilization strategy using modified polymers, offering improved stability and expanded operational conditions for potential biotechnological applications. The resulting amino groups were utilized to capture silver ions, which were subsequently converted to silver nanoparticles (AgNPs). The obtained materials, AgNPs@TA-HMDA (acrylic textiles coated silver nanoparticles AgNPs) and Ag(I)@TA-HMDA (acrylic textiles coated with Ag ion) were employed as supports for β-glucosidase enzyme immobilization. The highest immobilization yields (IY%) were achieved with AgNPs@TA-HMDA at 92%, followed by Ag(I)@TA-HMDA at 79.8%, resulting in activity yields (AY%) of 81% and 73%, respectively. Characterization techniques such as FTIR, FE-SEM, EDX, TG/DTG, DSC, and zeta potential were employed to investigate the structural composition, surface morphologies, elemental composition, thermal properties, and surface charge of the support materials. After 15 reuses, the preservation percentages decreased to 76% for AgNPs@TA-HMDA/β-Glu and 65% for Ag(I)@TA-HMDA/β-Glu. Storage stability revealed that the decrease in activity for the immobilized enzymes was smaller than the free enzyme. The optimal pH for the immobilized enzymes was broader (pH 5.5 to 6.5) compared to the free enzyme (pH 5.0), and the optimal temperature for the immobilized enzymes was 60 °C, slightly higher than the free enzyme's optimal temperature of 50 °C. The kinetic analysis showed a slight increase in Michaelis constant (Km) values for the immobilized enzymes and a decrease in maximum velocity (Vmax), turnover number (Kcat), and specificity constant (Kcat/Km) values compared to the free enzyme. Through extensive characterization, we gained valuable insights into the structural composition and properties of the modified polymer supports. This research significantly contributes to the development of efficient biotechnological processes by advancing the field of enzyme immobilization and offering valuable knowledge for its potential applications.
Collapse
Affiliation(s)
- Yaaser Q. Almulaiky
- Department of Chemistry, College of Science and Arts at Khulis, University of Jeddah, Jeddah 21921, Saudi Arabia
| | - J. Alkabli
- Department of Chemistry, College of Science and Arts at Alkamil, University of Jeddah, Jeddah 23218, Saudi Arabia;
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| |
Collapse
|
9
|
Abounahia N, Shahab AA, Khan MM, Qiblawey H, Zaidi SJ. A Comprehensive Review of Performance of Polyacrylonitrile-Based Membranes for Forward Osmosis Water Separation and Purification Process. Membranes (Basel) 2023; 13:872. [PMID: 37999358 PMCID: PMC10672921 DOI: 10.3390/membranes13110872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 09/30/2023] [Accepted: 10/04/2023] [Indexed: 11/25/2023]
Abstract
Polyacrylonitrile (PAN), with its unique chemical, electrical, mechanical, and thermal properties, has become a crucial acrylic polymer for the industry. This polymer has been widely used to fabricate ultrafiltration, nanofiltration, and reverse osmosis membranes for water treatment applications. However, it recently started to be used to fabricate thin-film composite (TFC) and fiber-based forward osmosis (FO) membranes at a lab scale. Phase inversion and electrospinning methods were the most utilized techniques to fabricate PAN-based FO membranes. The PAN substrate layer could function as a good support layer to create TFC and fiber membranes with excellent performance under FO process conditions by selecting the proper modification techniques. The various modification techniques used to enhance PAN-based FO performance include interfacial polymerization, layer-by-layer assembly, simple coating, and incorporating nanofillers. Thus, the fabrication and modification techniques of PAN-based porous FO membranes have been highlighted in this work. Also, the performance of these FO membranes was investigated. Finally, perspectives and potential directions for further study on PAN-based FO membranes are presented in light of the developments in this area. This review is expected to aid the scientific community in creating novel effective porous FO polymeric membranes based on PAN polymer for various water and wastewater treatment applications.
Collapse
Affiliation(s)
- Nada Abounahia
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Arqam Azad Shahab
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Maryam Mohammad Khan
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| | - Hazim Qiblawey
- Department of Chemical Engineering, College of Engineering, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Syed Javaid Zaidi
- UNESCO Chair in Desalination and Water Treatment, Center for Advanced Materials (CAM), Qatar University, Doha P.O. Box 2713, Qatar
| |
Collapse
|
10
|
Gu M, Wang J, Song Z, Li C, Wang W, Wang A, Huang Y. Multifunctional Asymmetric Separator Constructed by Polyacrylonitrile-Derived Nanofibers for Lithium-Sulfur Batteries. ACS Appl Mater Interfaces 2023. [PMID: 37889609 DOI: 10.1021/acsami.3c12690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/29/2023]
Abstract
Lithium-sulfur (Li-S) batteries hold great promise as next-generation high-energy storage devices owing to the high theoretical specific capacity of sulfur, but polysulfide shuttling and lithium dendrite growth remain key challenges limiting cycling life. In this work, we propose a polyacrylonitrile-derived asymmetric (PDA) separator to enhance Li-S battery performance by accelerating sulfur redox kinetics and guiding lithium plating and stripping. A PDA separator was constructed from two layers: the cathode-facing side consists of polyacrylonitrile nanofibers carbonized at 800 °C and doped with titanium nitride, which can achieve rapid polysulfide conversion via electrocatalysis to suppress their shuttling; the anode-facing side consists of polyacrylonitrile oxidized at 280 °C, on which the abundant electronegative groups guide uniform lithium ion plating and stripping. Li-S batteries assembled with the PDA separator exhibited enhanced rate performance, cycling stability, and sulfur utilization, retaining 426 mA h g-1 capacity at 1 C over 1000 cycles and 632 mA h g-1 at 4 C over 200 cycles. Attractively, the PDA separator showed high thermal stability, which could mitigate the risk of internal short circuits and thermal runaway. This work demonstrates an original path to addressing the most critical issues with Li-S batteries.
Collapse
Affiliation(s)
- Ming Gu
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Jiayu Wang
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Zihao Song
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Chengming Li
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| | - Weikun Wang
- Research Institute of Chemical Defense, Beijing 100083, China
| | - Anbang Wang
- Research Institute of Chemical Defense, Beijing 100083, China
| | - Yaqin Huang
- Beijing Key Laboratory of Electrochemical Process and Technology for Materials, Key Laboratory of Biomedical Materials of Natural Macromolecules, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
| |
Collapse
|
11
|
Homaeigohar S, Assad MA, Azari AH, Ghorbani F, Rodgers C, Dalby MJ, Zheng K, Xu R, Elbahri M, Boccaccini AR. Biosynthesis of Zinc Oxide Nanoparticles on l-Carnosine Biofunctionalized Polyacrylonitrile Nanofibers; a Biomimetic Wound Healing Material. ACS Appl Bio Mater 2023; 6:4290-4303. [PMID: 37721636 PMCID: PMC10583230 DOI: 10.1021/acsabm.3c00499] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/01/2023] [Indexed: 09/19/2023]
Abstract
Multifunctional biohybrid nanofibers (NFs) that can simultaneously drive various cellular activities and confer antibacterial properties are considered desirable in producing advanced wound healing materials. In this study, a bionanohybrid formulation was processed as a NF wound dressing to stimulate the adhesion and proliferation of fibroblast and endothelial cells that play a major role in wound healing. Polyacrylonitrile (PAN) electrospun NFs were hydrolyzed using NaOH and biofunctionalized with l-carnosine (CAR), a dipeptide which could later biosynthesize zinc oxide (ZnO) nanoparticles (NPs) on the NFs surface. The morphological study verified that ZnO NPs are uniformly distributed on the surface of CAR/PAN NFs. Through EDX and XRD analysis, it was validated that the NPs are composed of ZnO and/or ZnO/Zn(OH)2. The presence of CAR and ZnO NPs brought about a superhydrophilicity effect and notably raised the elastic modulus and tensile strength of Zn-CAR/PAN NFs. While CAR ligands were shown to improve the viability of fibroblast (L929) and endothelial (HUVEC) cells, ZnO NPs lowered the positive impact of CAR, most likely due to their repulsive negative surface charge. A scratch assay verified that CAR/PAN NFs and Zn-CAR/PAN NFs aided HUVEC migration more than PAN NFs. Also, an antibacterial assay implied that CAR/PAN NFs and Zn-CAR/PAN NFs are significantly more effective in inhibiting Staphylococcus aureus (S. aureus) than neat PAN NFs are (1000 and 500%, respectively). Taken together, compared to the neat PAN NFs, CAR/PAN NFs with and without the biosynthesized ZnO NPs can support the cellular activities of relevance for wound healing and inactivate bacteria.
Collapse
Affiliation(s)
- Shahin Homaeigohar
- School
of Science and Engineering, University of
Dundee, Dundee DD1 4HN, U.K.
| | - Mhd Adel Assad
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Amir Hossein Azari
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Farnaz Ghorbani
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| | - Chloe Rodgers
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Matthew J. Dalby
- Centre
for the Cellular Microenvironment, University
of Glasgow, Glasgow 11 6EW, U.K.
| | - Kai Zheng
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
| | - Rongyao Xu
- Jiangsu
Province Engineering Research Center of Stomatological Translational
Medicine, Nanjing Medical University, Nanjing 210029, China
- Department
of Oral and Maxillofacial Surgery, Stomatological Hospital, Nanjing Medical University, Nanjing 210029, China
| | - Mady Elbahri
- Nanochemistry
and Nanoengineering, Department of Chemistry and Materials Science,
School of Chemical Engineering, Aalto University, Espoo 02150, Finland
| | - Aldo. R. Boccaccini
- Institute
of Biomaterials, Department of Materials Science and Engineering, University of Erlangen-Nuremberg, Erlangen 91058, Germany
| |
Collapse
|
12
|
Fan M, Yue X, Wang X, Fan S, Hong J, Han X, Zhao X. Electric field simulation of multi-needle water bath electrospinning and the structural properties of SCN/PAN micro/nanofiber composite yarns. Nanotechnology 2023; 34. [PMID: 37625384 DOI: 10.1088/1361-6528/acf3ef] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2023] [Accepted: 08/25/2023] [Indexed: 08/27/2023]
Abstract
Multi-needle water bath electrospinning is one of the most efficient methods used to prepare micro/nanofiber composite yarns. The nanofiber structure can be targeted and regulated to obtain high-performance composite yarns. To explore the effect of the receiving distance on the structure and properties of micro/nanofiber composite yarns, polyacrylonitrile nanofibers were uniformly coated on silver-coated nylon yarn via a four-needle continuous water bath electrospinning method. The electric field distribution at different receiving distances was simulated by ANSYS finite element analysis software, and the effects of electric field distribution on the structure and properties of the micro/nanofiber composite yarns were studied. The results indicated that the peak electric field intensity appeared at the tip of the needles and decreased with the increase in the receiving distance. The receiving distance was constant, and the field intensity was lower when the direction of the centerline of the needle tip was farther away from the tip; however, the field intensity at the conductive core yarn was higher than that in the surrounding area (small spikes). The average field intensity of the small spikes at 180 mm was only 1/4 of that at 80 mm. When the receiving distance increased within a certain range (100∼140 mm), the nanofibers had a smooth surface and good separation, their diameters decreased continuously and the porosity changed inversely. With a further increase in the receiving distance, the nanofibers gradually bonded, their diameter increased and the porosity showed the opposite trend. The coating rate of the nanofibers showed a decreasing trend, and the mechanical properties of the micro/nano composite yarns were improved. When the receiving distance was 100 mm, the porosity reached 38.94%, and the breaking force, breaking elongation and breaking strength were 13.71 ± 1.36 cN, 22.76 ± 6.62% and 0.15 ± 0.02 cN·dtex-1, respectively. Upon consideration of all the above factors, the receiving distance of 100 mm is appropriate.
Collapse
Affiliation(s)
- Mengjing Fan
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
| | - Xinyan Yue
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
| | - Xiaohu Wang
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
| | - Senlin Fan
- College of Textile, Donghua University, Shanghai 201620, People's Republic of China
| | - Jianhan Hong
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing 312000, People's Republic of China
- Shaoxing Sub-center of National Engineering Research Center for Fiber-based Composites, Shaoxing, Zhejiang 312000, People's Republic of China
| | - Xiao Han
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing 312000, People's Republic of China
- Shaoxing Sub-center of National Engineering Research Center for Fiber-based Composites, Shaoxing, Zhejiang 312000, People's Republic of China
| | - Xiaoman Zhao
- School of Textiles & Apparel, Shaoxing University, Shaoxing 312000, People's Republic of China
- Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province, Shaoxing 312000, People's Republic of China
- Shaoxing Sub-center of National Engineering Research Center for Fiber-based Composites, Shaoxing, Zhejiang 312000, People's Republic of China
| |
Collapse
|
13
|
Ruiz Rocha JE, Moreno Tovar KR, Navarro Mendoza R, Gutiérrez Granados S, Cavaliere S, Giaume D, Barboux P, Jaime Ferrer JS. Critical Electrospinning Parameters for Synthesis Control of Stabilized Polyacrylonitrile Nanofibers. Nanomaterials (Basel) 2023; 13:2648. [PMID: 37836289 PMCID: PMC10574287 DOI: 10.3390/nano13192648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 09/17/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023]
Abstract
Polyacrylonitrile (PAN) fibers are widely used as precursors in the manufacture of high-conducting and mechanically resistant carbon fibers. The modulation of such fibers is carried out through electrospinning. In this work, we show the production and control of the morphology of nanometric-range PAN fibers for their potential use as precursors for high-electrical-conductivity carbon fibers. PAN samples dissolved in dimethylformamide (DMF) were prepared at 6, 10, and 12% w/w, at 15 and 25 kV. The impact of the rotation of the collector drum at 100, 300, and 500 RPM was also studied. It was found that the percentage of PAN in the solution proportionally affects the diameter of the fibers and that the preparation potential affects the morphology. The rotation speed, when increased, decreases the diameter, and it has a negative impact on the morphology. Fibers prepared with 6% w/w at 15 kV and 500 RPM show 90 nm diameters, the smallest diameter of all the samples.
Collapse
Affiliation(s)
- Juan Emmanuel Ruiz Rocha
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Guanajuato 36040, Mexico; (J.E.R.R.); (R.N.M.)
- Chimie ParisTech, PSL University, Institut de Recherche de Chimie Paris, Centre National de la Recherche Scientifique, 75005 Paris, France; (D.G.); (P.B.)
| | - Karla Rebeca Moreno Tovar
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Guanajuato 36040, Mexico; (J.E.R.R.); (R.N.M.)
| | - Ricardo Navarro Mendoza
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Guanajuato 36040, Mexico; (J.E.R.R.); (R.N.M.)
| | - Silvia Gutiérrez Granados
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Guanajuato 36040, Mexico; (J.E.R.R.); (R.N.M.)
| | - Sara Cavaliere
- ICGM, University Montpellier, CNRS, ENSCM, CEDEX 5, 34095 Montpellier, France
| | - Domitille Giaume
- Chimie ParisTech, PSL University, Institut de Recherche de Chimie Paris, Centre National de la Recherche Scientifique, 75005 Paris, France; (D.G.); (P.B.)
| | - Philippe Barboux
- Chimie ParisTech, PSL University, Institut de Recherche de Chimie Paris, Centre National de la Recherche Scientifique, 75005 Paris, France; (D.G.); (P.B.)
| | - Jesús Salvador Jaime Ferrer
- CIATEC A.C., Centro de Innovación Aplicada en Tecnología Competitiva, Omega 201, Industrial Delta, GTO, León 37545, Mexico
| |
Collapse
|
14
|
Mantripragada S, Deng D, Zhang L. Algae-Enhanced Electrospun Polyacrylonitrile Nanofibrous Membrane for High-Performance Short-Chain PFAS Remediation from Water. Nanomaterials (Basel) 2023; 13:2646. [PMID: 37836287 PMCID: PMC10574606 DOI: 10.3390/nano13192646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 09/15/2023] [Accepted: 09/23/2023] [Indexed: 10/15/2023]
Abstract
As a short-chain PFAS (per- and polyfluoroalkyl substance), GenX was produced in recent years to replace traditional long-chain PFASs, such as perfluorooctanoic acid (PFOA). However, GenX turns out to be more toxic than people originally thought, posing health risks as a persistent environmental pollutant. In this research, for the first time, we incorporated chlorella, a single-celled green freshwater microalga that grows worldwide, with polyacrylonitrile (PAN) in equal amounts in electrospun nanofibers and studied the capability of the electrospun PAN/Algae bicomponent nanofibrous membrane (ES(PAN/Algae)) to bind and remove GenX from water. The incorporation of algae demonstrated a synergistic effect and significantly improved the GenX removal efficiency of the nanofibrous membrane. The maximum GenX removal capacity reached 0.9 mmol/g at pH 6, which is significantly higher than that of most of the reported GenX adsorbents as well as activated carbon. The GenX removal mechanism was investigated and discussed by using water contact angle, zeta potential, FTIR, and XPS techniques. This research demonstrated the potential to make highly efficient adsorbent/filter materials from common and economic materials to practically remediate short-chain PFASs from various water bodies.
Collapse
Affiliation(s)
- Shobha Mantripragada
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC 27401, USA
| | - Dongyang Deng
- Department of Built Environment, College of Science and Technology, North Carolina A&T State University, Greensboro, NC 27411, USA
| | - Lifeng Zhang
- Department of Nanoengineering, Joint School of Nanoscience and Nanoengineering, North Carolina A&T State University, Greensboro, NC 27401, USA
| |
Collapse
|
15
|
Yushkin AA, Balynin AV, Nebesskaya AP, Chernikova EV, Muratov DG, Efimov MN, Karpacheva GP. Acrylonitrile-Acrylic Acid Copolymer Ultrafiltration Membranes for Selective Asphaltene Removal from Crude Oil. Membranes (Basel) 2023; 13:775. [PMID: 37755197 PMCID: PMC10538228 DOI: 10.3390/membranes13090775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 08/28/2023] [Accepted: 08/29/2023] [Indexed: 09/28/2023]
Abstract
In this study, ultrafiltration membranes were developed via a nonsolvent-induced phase separation method for the removal of asphaltenes from crude oil. Polyacrylonitrile (PAN) and acrylonitrile copolymers with acrylic acid were used as membrane materials. Copolymerizing acrylonitrile with acrylic acid resulted in an improvement in the fouling resistance of the membranes. The addition of 10% of acrylic acid to the polymer chain decreases the water contact angle from 71° to 43°, reducing both the total fouling and irreversible fouling compared to membranes made from a PAN homopolymer. The obtained membranes with a pore size of 32-55 nm demonstrated a pure toluene permeance of 84.8-130.4 L/(m2·h·bar) and asphaltene rejection from oil/toluene solutions (100 g/L) of 33-95%. An analysis of the asphaltene rejection values revealed that the addition of acrylic acid increases the rejection values in comparison to PAN membranes with the same pore size. Our results suggest that the acrylonitrile-acrylic acid copolymer ultrafiltration membranes have promising potential for the efficient removal of asphaltenes from crude oil.
Collapse
Affiliation(s)
- Alexey A. Yushkin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| | - Alexey V. Balynin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| | - Alexandra P. Nebesskaya
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| | - Elena V. Chernikova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
- Faculty of Chemistry, Moscow State University, 119991 Moscow, Russia
| | - Dmitriy G. Muratov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| | - Mikhail N. Efimov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| | - Galina P. Karpacheva
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29 Leninsky Prospekt, 119991 Moscow, Russia; (A.V.B.); (A.P.N.); (E.V.C.); (D.G.M.); (M.N.E.); (G.P.K.)
| |
Collapse
|
16
|
Vinogradov MI, Golova LK, Makarov IS, Bondarenko GN, Levin IS, Arkharova NA, Kulichikhin VG. Transformation of Specific Dispersion Interactions between Cellulose and Polyacrylonitrile in Solutions into Covalent Interactions in Fibers. Materials (Basel) 2023; 16:5843. [PMID: 37687536 PMCID: PMC10489092 DOI: 10.3390/ma16175843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/22/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023]
Abstract
Morphological transformations in emulsions of cellulose and polyacrylonitrile (PAN) ternary copolymers containing acrylonitrile, methyl acrylate, and methylsulfonate comonomers in N-methylmorpholine-N-oxide were studied over the entire range of concentrations depending on temperature and intensity of the deformation action. Based on the morphological and rheological features of the system, the temperature-concentration range of spinnability of mixed solutions was determined, and composite fibers were spun. The fibers are characterized by a heterogeneous fibrillar texture. Studies of the structure of the fibers, carried out using X-ray diffraction analysis, revealed a decrease in cellulose crystallinity with an increase in the content of PAN. The study of the thermal properties of the obtained fibers, carried out using DSC, and chemical transformations in them in a wide temperature range by high-temperature diffuse reflection IR spectroscopy made it possible to reveal a new intense exothermic peak on the thermograms at 360 °C, which according to the IR spectra corresponds to the transformation of intermacromolecular physical interactions of the PAN and cellulose into covalent bonds between polymers. In addition, the ester groups found during the thermal treatment of the PAN part of the composite fibers in the pyrolysis zone can have a key effect on the process of their further carbonization.
Collapse
Affiliation(s)
- Markel I. Vinogradov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| | - Lyudmila K. Golova
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| | - Igor S. Makarov
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| | - Galina N. Bondarenko
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| | - Ivan S. Levin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| | - Natalia A. Arkharova
- A.V. Shubnikov Institute of Crystallography, Federal Research Center Crystallography and Photonics, Russian Academy of Sciences, 119333 Moscow, Russia;
| | - Valery G. Kulichikhin
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, 29, Leninsky Prospekt, 119991 Moscow, Russia; (M.I.V.); (L.K.G.); (G.N.B.); (I.S.L.)
| |
Collapse
|
17
|
Zhang X, Zhao X, Wang Z. Polyacrylonitrile Passivation for Enhancing the Optoelectronic Switching Performance of Halide Perovskite Memristor for Image Boolean Logic Applications. Nanomaterials (Basel) 2023; 13:2174. [PMID: 37570491 PMCID: PMC10421001 DOI: 10.3390/nano13152174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 07/19/2023] [Accepted: 07/24/2023] [Indexed: 08/13/2023]
Abstract
For the CH3NH3PbI3-based optoelectronic memristor, the high ion-migration randomness induces high fluctuation in the resistive switching (RS) parameters. Grain boundaries (GBs) are well known as the ion-migration sites due to their low energy barrier. Herein, a polyacrylonitrile (PAN) passivation method is developed to reduce GBs of the CH3NH3PbI3 film and improve the switching uniformity of the memristor. The crystal grain size of CH3NH3PbI3 increases with the addition of PAN, and the corresponding number of GBs is consequently reduced. The fluctuations of the RS parameters of the memristor device are significantly reduced. With the memristor, nonvolatile image sensing, image memory, and image Boolean operations are demonstrated. This work proposes a strategy for developing high-performance CH3NH3PbI3 optoelectronic memristors.
Collapse
Affiliation(s)
| | - Xiaoning Zhao
- Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| | - Zhongqiang Wang
- Key Laboratory of UV-Emitting Materials and Technology of Ministry of Education, Northeast Normal University, Changchun 130024, China
| |
Collapse
|
18
|
Peng L, Niu J, Jiang P, Han X, Jin X, Liu X, Wang W, Lang C, Wang H, Lin T. Broadband Acoustoelectric Conversion Based on Oriented Polyacrylonitrile Nanofibers and Slit Electrodes for Generating Power from Airborne Noise. ACS Appl Mater Interfaces 2023. [PMID: 37306252 DOI: 10.1021/acsami.3c03729] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Electrospun nanofiber acoustoelectric devices typically have a bandwidth in the range of 100-400 Hz, which limits their applications. This study demonstrates a novel device structure with tunable acoustoelectric bandwidth based on oriented electrospun polyacrylonitrile (PAN) nanofibers and slit electrodes. When the PAN nanofibers were arranged perpendicular to the slits, the devices had a much wider bandwidth than their parallel counterparts, while the latter had a bandwidth similar to that of randomly oriented nanofibers. In all devices, the electrical outputs follow a similar trend with the slit aspect ratio. However, the slit number only affected the electrical output without changing the bandwidth characteristic. We further showed that both the slit electrode and the oriented nanofiber membranes played a role in tuning the frequency response. Under sound, the vibration of the electrode caused the slit to be misaligned on both sides. The anisotropic tensile properties of the oriented nanofiber membranes allowed the fibers to stretch differently depending on their angle of alignment with the slits. Those perpendicular to the slits received more intense stretching, contributing to a wider bandwidth. The wider bandwidth increases the electrical output, especially when harvesting multifrequency sound. A 4 × 3 cm2 device made of five-slit electrodes (slit width × length, 2 mm × 30 mm) with PAN nanofibers perpendicular to the slits showed a bandwidth of 100-900 Hz and electrical outputs of 39.85 ± 1.34 V (current output 6.25 ± 0.18 μA) under 115 dB sound conditions, which is sufficient to power electromagnetic wireless transmitters. When one such slit device was used as a power supply and another as a sound sensor, they formed a completely self-powered wireless system that could detect sounds from various scenarios, such as high-speed trains, airports, highway traffic, and manufacturing industries. The energy can also be stored in lithium-ion batteries and capacitors. We hope that such novel devices will contribute to the development of highly efficient acoustoelectric technology for generating electrical energy from airborne noise.
Collapse
Affiliation(s)
- Lu Peng
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Jiarong Niu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Peng Jiang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xing Han
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xin Jin
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Materials Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Xing Liu
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Wenyu Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Chenhong Lang
- College of Textile Science and Engineering (International Institute of Silk), Zhejiang Sci-Tech University, Hangzhou, Zhejiang 310018, China
| | - Hongxia Wang
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
| | - Tong Lin
- State Key Laboratory of Separation Membranes and Membrane Processes, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Institute for Nanofiber Intelligent Manufacture and Applications, School of Textile Science and Engineering, Tiangong University, Tianjin 300387, China
- Research Institute of Cangzhou, Tiangong University, Cangzhou, Hebei 061014, China
| |
Collapse
|
19
|
Varfolomeeva LA, Skvortsov IY, Levin IS, Shandryuk GA, Patsaev TD, Kulichikhin VG. Polyacrylonitrile Fibers with a Gradient Silica Distribution as Precursors of Carbon-Silicon-Carbide Fibers. Polymers (Basel) 2023; 15:polym15112579. [PMID: 37299378 DOI: 10.3390/polym15112579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 05/30/2023] [Accepted: 06/02/2023] [Indexed: 06/12/2023] Open
Abstract
This study presents preparing and characterization of polyacrylonitrile (PAN) fibers containing various content of tetraethoxysilane (TEOS) incorporated via mutual spinning solution or emulsion using wet and mechanotropic spinning methods. It was shown that the presence of TEOS in dopes does not affect their rheological properties. The coagulation kinetics of complex PAN solution was investigated by optical methods on the solution drop. It was shown that during the interdiffusion process phase separation occurs and TEOS droplets form and move in the middle of the dope's drop. Mechanotropic spinning induces the TEOS droplets to move to the fiber periphery. The morphology and structure of the fibers obtained were investigated by scanning and transmission electron microscopy, as well as X-ray diffraction methods. It was shown that during fiber spinning stages the transformation of the TEOS drops into solid silica particles takes place as a result of hydrolytic polycondensation. This process can be characterized as the sol-gel synthesis. The formation of nano-sized (3-30 nm) silica particles proceeds without particles aggregation, but in a mode of the distribution gradient along the fiber cross-section leading to the accumulation of the silica particles either in the fiber center (wet spinning) or in the fiber periphery (mechanotropic spinning). The prepared composite fibers were carbonized and according to XRD analysis of carbon fibers, the clear peaks corresponding to SiC were observed. These findings indicate the useful role of TEOS as a precursor agent for both, silica in PAN fibers and silicon carbide in carbon fibers that has potential applications in some advanced materials with high thermal properties.
Collapse
Affiliation(s)
- Lydia A Varfolomeeva
- A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia
| | - Ivan Yu Skvortsov
- A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia
| | - Ivan S Levin
- A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia
| | - Georgiy A Shandryuk
- A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia
| | - Timofey D Patsaev
- National Research Center "Kurchatov Institute", 1, Akademika Kurchatova pl., 123182 Moscow, Russia
| | - Valery G Kulichikhin
- A. V. Topchiev Institute of Petrochemical Synthesis of Russian Academy of Sciences, Leninsky Av. 29, 119991 Moscow, Russia
| |
Collapse
|
20
|
Komarov P, Malyshev M, Baburkin P, Guseva D. Mesoscale Simulations of Structure Formation in Polyacrylonitrile Nascent Fibers Induced by Binary Solvent Mixture. Int J Mol Sci 2023; 24:ijms24119312. [PMID: 37298269 DOI: 10.3390/ijms24119312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 05/21/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Polyacrylonitrile (PAN) is widely used as a raw material for the production of high-modulus carbon fibers, the internal structure of which is directly affected by the spinning of the precursor. Although PAN fibers have been studied for a long time, the formation of their internal structure has not been sufficiently investigated theoretically. This is due to the large number of stages in the process and the parameters controlling them. In this study, we present a mesoscale model describing the evolution of nascent PAN fibers during the coagulation. It is constructed within the framework of a mesoscale dynamic density functional theory. We use the model to study the influence of a combined solvent of dimethyl sulfoxide (DMSO, a good solvent) and water (a non-solvent) on the microstructure of the fibers. A porous structure of PAN is formed as a result of the microphase separation of the polymer and the residual combined solvent at a high water content in the system. The model shows that one of the possible ways to obtain the homogeneous fiber structure is to slow down the coagulation by increasing the amount of good solvent in the system. This result is in agreement with the existing experimental data and confirms the efficiency of the presented model.
Collapse
Affiliation(s)
- Pavel Komarov
- Scientific Research Department, Tver State University, Zhelyabova 33, 170100 Tver, Russia
| | - Maxim Malyshev
- Scientific Research Department, Tver State University, Zhelyabova 33, 170100 Tver, Russia
| | - Pavel Baburkin
- Scientific Research Department, Tver State University, Zhelyabova 33, 170100 Tver, Russia
| | - Daria Guseva
- A.N. Nesmeyanov Institute of Organoelement Compounds RAS, Vavilova Street 28, 119991 Moscow, Russia
| |
Collapse
|
21
|
Emam MH, Elezaby RS, Swidan SA, Loutfy SA, Hathout RM. Cerium Oxide Nanoparticles/ Polyacrylonitrile Nanofibers as Impervious Barrier against Viral Infections. Pharmaceutics 2023; 15:1494. [PMID: 37242737 PMCID: PMC10224416 DOI: 10.3390/pharmaceutics15051494] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Revised: 05/04/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
BACKGROUND Using face masks is one of the protective measures to reduce the transmission rate of coronavirus. Its massive spread necessitates developing safe and effective antiviral masks (filters) applying nanotechnology. METHODS Novel electrospun composites were fabricated by incorporating cerium oxide nanoparticles (CeO2 NPs) into polyacrylonitrile (PAN) electrospun nanofibers that can be used in the future in face masks. The effects of the polymer concentration, applied voltage, and feeding rate during the electrospinning were studied. The electrospun nanofibers were characterized using SEM, XRD, FTIR, and tensile strength testing. The cytotoxic effect of the nanofibers was evaluated in the Vero cell line using the MTT colorimetric assay, and the antiviral activity of the proposed nanofibers was evaluated against the human adenovirus type 5 (ADV-5) respiratory virus. RESULTS The optimum formulation was fabricated with a PAN concentration of 8%, w/v loaded with 0.25%, w/v CeO2 NPs with a feeding rate of 26 KV and an applied voltage of 0.5 mL/h. They showed a particle size of 15.8 ± 1.91 nm and a zeta potential of -14 ± 0.141 mV. SEM imaging demonstrated the nanoscale features of the nanofibers even after incorporating CeO2 NPs. The cellular viability study showed the safety of the PAN nanofibers. Incorporating CeO2 NPs into these fibers further increased their cellular viability. Moreover, the assembled filter could prevent viral entry into the host cells as well as prevent their replication inside the cells via adsorption and virucidal antiviral mechanisms. CONCLUSIONS The developed cerium oxide nanoparticles/polyacrylonitrile nanofibers can be considered a promising antiviral filter that can be used to halt virus spread.
Collapse
Affiliation(s)
- Merna H. Emam
- Nanotechnology Research Center (NTRC), The British University in Egypt, Suez Desert Road, El-Shorouk City, P.O. Box 43, Cairo 11837, Egypt
| | - Reham S. Elezaby
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| | - Shady A. Swidan
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The British University in Egypt, El-Shorouk City, P.O. Box 43, Cairo 11837, Egypt
| | - Samah A. Loutfy
- Nanotechnology Research Center (NTRC), The British University in Egypt, Suez Desert Road, El-Shorouk City, P.O. Box 43, Cairo 11837, Egypt
- Virology and Immunology Unit, Cancer Biology Department, National Cancer Institute, Cairo University, Cairo 11796, Egypt
| | - Rania M. Hathout
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo 11566, Egypt
| |
Collapse
|
22
|
Skupov KM, Ponomarev II, Vtyurina ES, Volkova YA, Ponomarev II, Zhigalina OM, Khmelenin DN, Cherkovskiy EN, Modestov AD. Proton-Conducting Polymer-Coated Carbon Nanofiber Mats for Pt-Anodes of High-Temperature Polymer-Electrolyte Membrane Fuel Cell. Membranes (Basel) 2023; 13:membranes13050479. [PMID: 37233540 DOI: 10.3390/membranes13050479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/27/2023]
Abstract
High-temperature polymer-electrolyte membrane fuel cells (HT-PEM FC) are a very important type of fuel cell since they operate at 150-200 °C, allowing the use of hydrogen contaminated with CO. However, the need to improve stability and other properties of gas diffusion electrodes still hinders their distribution. Anodes based on a mat (self-supporting entire non-woven nanofiber material) of carbon nanofibers (CNF) were prepared by the electrospinning method from a polyacrylonitrile solution followed by thermal stabilization and pyrolysis of the mat. To improve their proton conductivity, Zr salt was introduced into the electrospinning solution. As a result, after subsequent deposition of Pt-nanoparticles, Zr-containing composite anodes were obtained. To improve the proton conductivity of the nanofiber surface of the composite anode and reach HT-PEMFC better performance, dilute solutions of Nafion®, a polymer of intrinsic microporosity (PIM-1) and N-ethyl phosphonated polybenzimidazole (PBI-OPhT-P) were used to coat the CNF surface for the first time. These anodes were studied by electron microscopy and tested in membrane-electrode assembly for H2/air HT-PEMFC. The use of CNF anodes coated with PBI-OPhT-P has been shown to improve the HT-PEMFC performance.
Collapse
Affiliation(s)
- Kirill M Skupov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, bld. 1, 119334 Moscow, Russia
| | - Igor I Ponomarev
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, bld. 1, 119334 Moscow, Russia
| | - Elizaveta S Vtyurina
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, bld. 1, 119334 Moscow, Russia
| | - Yulia A Volkova
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, bld. 1, 119334 Moscow, Russia
| | - Ivan I Ponomarev
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova St. 28, bld. 1, 119334 Moscow, Russia
| | - Olga M Zhigalina
- A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Leninsky Av. 59, 119333 Moscow, Russia
| | - Dmitry N Khmelenin
- A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Leninsky Av. 59, 119333 Moscow, Russia
| | - Evgeny N Cherkovskiy
- A.V. Shubnikov Institute of Crystallography of Federal Scientific Research Centre "Crystallography and Photonics" of Russian Academy of Sciences, Leninsky Av. 59, 119333 Moscow, Russia
| | - Alexander D Modestov
- A.N. Frumkin Institute of Physical Chemistry and Electrochemistry of Russian Academy of Sciences, Leninsky Av. 31, bld. 4., 119071 Moscow, Russia
| |
Collapse
|
23
|
Rac-Rumijowska O, Teterycz H. Electrical Conductance Mechanism of Silver- Polyacrylonitrile Nanocomposite Fibers. Materials (Basel) 2023; 16:3085. [PMID: 37109921 PMCID: PMC10141952 DOI: 10.3390/ma16083085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/30/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
This paper presents the mechanism of electrical conductivity in nanocomposite polyacrylonitrile (PAN) fibers modified with silver nanoparticles (AgNPs). Fibers were formed by the wet-spinning method. The nanoparticles were introduced into the polymer matrix as a result of direct synthesis in the spinning solution from which the fibers were obtained, thereby influencing the chemical and physical properties of the polymer matrix. The structure of the nanocomposite fibers was determined using SEM, TEM, and XRD, and the electrical properties were determined using the DC and AC methods. The conductivity of the fibers was electronic and based on the percolation theory with tunneling through the polymer phase. This article describes in detail the influence of individual fiber parameters on the final electrical conductivity of the PAN/AgNPs composite and presents the mechanism of conductivity.
Collapse
|
24
|
Dissanayake NSL, Pathirana MA, Wanasekara ND, Mahltig B, Nandasiri GK. Removal of Methylene Blue and Congo Red Using a Chitosan-Graphene Oxide-Electrosprayed Functionalized Polymeric Nanofiber Membrane. Nanomaterials (Basel) 2023; 13:1350. [PMID: 37110933 PMCID: PMC10144769 DOI: 10.3390/nano13081350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 06/19/2023]
Abstract
Untreated textile effluent may contain toxic organic pollutants that can have negative impacts on the ecosystem. Among the harmful chemicals present in dyeing wastewater, there are two frequently used organic dyes: methylene blue (cationic) and congo red (anionic). The current study presents investigations on a novel two-tier nanocomposite membrane, i.e., a top layer formed of electrosprayed chitosan-graphene oxide and a bottom layer consisting of an ethylene diamine functionalized polyacrylonitrile electrospun nanofiber for the simultaneous removal of the congo red and methylene blue dyes. The fabricated nanocomposite was characterized using FT-IR spectroscopy, scanning electron microscopy, UV-visible spectroscopy, and Drop Shape Analyzer. Isotherm modeling was used to determine the efficiency of dye adsorption for the electrosprayed nanocomposite membrane and the confirmed maximum adsorptive capacities of 182.5 mg/g for congo red and 219.3 mg/g for methylene blue, which fits with the Langmuir isotherm model, suggesting uniform single-layer adsorption. It was also discovered that the adsorbent preferred an acidic pH level for the removal of congo red and a basic pH level for the removal of methylene blue. The gained results can be a first step for the development of new wastewater cleaning techniques.
Collapse
Affiliation(s)
- Nethmi S. L. Dissanayake
- Department of Textile and Apparel Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka; (N.S.L.D.)
| | - Maadri A. Pathirana
- Department of Textile and Apparel Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka; (N.S.L.D.)
| | - Nandula D. Wanasekara
- Department of Textile and Apparel Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka; (N.S.L.D.)
| | - Boris Mahltig
- Faculty of Textile and Clothing Technology, Hochschule Niederrhein-University of Applied Sciences, 41065 Mönchengladbach, Germany
| | - Gayani K. Nandasiri
- Department of Textile and Apparel Engineering, Faculty of Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka; (N.S.L.D.)
| |
Collapse
|
25
|
Zhou W, Liu Q, Xu N, Wang Q, Fan L, Dong Q. In Situ Incorporation of TiO 2@Graphene Oxide (GO) Nanosheets in Polyacrylonitrile (PAN)-Based Membranes Matrix for Ultrafast Protein Separation. Membranes (Basel) 2023; 13:377. [PMID: 37103804 PMCID: PMC10142853 DOI: 10.3390/membranes13040377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/21/2023] [Accepted: 03/23/2023] [Indexed: 06/19/2023]
Abstract
Organic polymeric ultrafiltration (UF) membranes have been widely used in protein separation due to their advantages of high flux and simple manufacturing process. However, due to the hydrophobic nature of the polymer, pure polymeric UF membranes need to be modified or hybrid to increase their flux and anti-fouling performance. In this work, tetrabutyl titanate (TBT) and graphene oxide (GO) were simultaneously added to the polyacrylonitrile (PAN) casting solution to prepare a TiO2@GO/PAN hybrid ultrafiltration membrane using a non-solvent induced phase separation (NIPS). During the phase separation process, TBT underwent a sol-gel reaction to generate hydrophilic TiO2 nanoparticles in situ. Some of the generated TiO2 nanoparticles reacted with the GO through a chelation interaction to form TiO2@GO nanocomposites. The resulting TiO2@GO nanocomposites had higher hydrophilicity than the GO. They could selectively segregate towards the membrane surface and pore walls through the solvent and non-solvent exchange during the NIPS, significantly improving the membrane's hydrophilicity. The remaining TiO2 nanoparticles were segregated from the membrane matrix to increase the membrane's porosity. Furthermore, the interaction between the GO and TiO2 also restricted the excessive segregation of the TiO2 nanoparticles and reduced their losing. The resulting TiO2@GO/PAN membrane had a water flux of 1487.6 L·m-2·h-1 and a bovine serum albumin (BSA) rejection rate of 99.5%, which were much higher than those of the currently available UF membranes. It also exhibited excellent anti-protein fouling performance. Therefore, the prepared TiO2@GO/PAN membrane has important practical applications in the field of protein separation.
Collapse
Affiliation(s)
- Wei Zhou
- Hefei Tianmai Biotechnology Development Co., Ltd., No. 199 Fanhua Ave., Hefei 230601, China
| | - Qiao Liu
- Hefei Tianmai Biotechnology Development Co., Ltd., No. 199 Fanhua Ave., Hefei 230601, China
- School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Nong Xu
- School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Qing Wang
- School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Long Fan
- School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| | - Qiang Dong
- Hefei Tianmai Biotechnology Development Co., Ltd., No. 199 Fanhua Ave., Hefei 230601, China
- School of Energy, Materials and Chemical Engineering, Hefei University, Hefei 230601, China
| |
Collapse
|
26
|
Ang MBMY, Hsu WL, Wang YS, Kuo HY, Tsai HA, Lee KR. Using Tannic-Acid-Based Complex to Modify Polyacrylonitrile Hollow Fiber Membrane for Efficient Oil-In-Water Separation. Membranes (Basel) 2023; 13:351. [PMID: 36984738 PMCID: PMC10051258 DOI: 10.3390/membranes13030351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Revised: 03/04/2023] [Accepted: 03/14/2023] [Indexed: 06/18/2023]
Abstract
Separating oil from water allows us to reuse both fluids for various applications, leading to a more economical process. Membrane separation has been evidenced as a cost-effective process for wastewater treatment. A hollow fiber membrane made of polyacrylonitrile (PAN) is an excellent choice for separating oil from water because of its superior chemical resistance. Its low antifouling ability, however, reduces the effectiveness of its separation. Hence, in this study, we used tannic acid (TA) and FeIII complex to modify the surface of the PAN hollow fiber membrane. To improve membrane performance, different reaction times were investigated. The results demonstrate that even when the TA-FeIII covered the pores of the PAN membrane, the water flux remained constant. However, when an emulsion was fed to the feed solution, the flux increased from 50 to 66 LMH, indicating low oil adhesion on the surface of the modified membrane. When compared to the pristine membrane, the modified membrane had superior antifouling and reusability. As a result, the hydrophilic TA-FeIII complex on PAN surface improves overall membrane performance.
Collapse
|
27
|
Xu D, Pan G, Ge Y, Yang X. Preparation of a Low-Protein-Fouling and High-Protein-Retention Membrane via Novel Pre-Hydrolysis Treatment of Polyacrylonitrile (PAN). Membranes (Basel) 2023; 13:310. [PMID: 36984698 PMCID: PMC10051198 DOI: 10.3390/membranes13030310] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/18/2023] [Revised: 03/04/2023] [Accepted: 03/06/2023] [Indexed: 06/18/2023]
Abstract
The attainment of high-protein-retention and low-protein-fouling membranes is crucial for industries that necessitate protein production or separation process. The present study aimed to develop a novel method for preparing polyacrylonitrile (PAN) membranes possessing a highly hydrophilic and negatively charged surface as well as interior structure. The method involved a pre-hydrolysis treatment during the preparation of the PAN dope solution, followed by phase inversion in an alkaline solution. Chemical and material characterization of the dopes and membranes uncovered that the cyclized PAN structure served as a reaction intermediate that facilitated strong hydrolysis effect during phase inversion and homogeneously formed carboxyl groups in the membrane's interior structure. The resulting membrane showed a highly hydrophilic surface with a contact angle of 12.4° and demonstrated less than 21% flux decay and more than 95% flux recovery during multi-cycle filtration of bovine serum albumin (BSA) solution, with a high protein rejection rate of 96%. This study offers a facile and effective alternative for preparing PAN membranes with enhanced antifouling and protein-retention properties.
Collapse
|
28
|
Sewell SL, Owen L, Laird K, Huddersman KD, Walsh SE. Heterogeneous Fenton's-like catalyst potentiation of hydrogen peroxide disinfection: an investigation into mechanisms of action. J Appl Microbiol 2023; 134:7043460. [PMID: 36796798 DOI: 10.1093/jambio/lxad017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 10/10/2022] [Accepted: 02/15/2023] [Indexed: 02/18/2023]
Abstract
AIMS This study aimed to establish the mechanisms of action (MOA) of a novel surface-functionalized polyacrylonitrile (PAN) catalyst, which was previously shown to have potent antimicrobial activity in conjunction with hydrogen peroxide (H2O2). METHODS AND RESULTS Bactericidal activity was determined using a disinfectant suspension test. The MOA was investigated by measuring the loss of 260 nm absorbing material, membrane potential, permeability assays, analysis of intra- and extracellular ATP and pH, and tolerance to sodium chloride and bile salts.The catalyst lowered sub-lethal concentrations of H2O2 from 0.2 to 0.09%. H2O2 ± 3 g PAN catalyst significantly (P ≤ 0.05) reduced sodium chloride and bile salt tolerance, suggesting the occurance of sublethal cell membrane damage. The catalyst significantly increased (P ≤ 0.05) N-Phenyl-l-Napthylamine uptake (1.51-fold) and leakage of nucleic acids, demonstrating increased membrane permeability. A significant (P ≤ 0.05) loss of membrane potential (0.015 a.u.), coupled with pertubation of intracellular pH homeostasis and depletion of intracellular ATP, suggests potentiation of H2O2-mediated cell membrane damage. CONCLUSIONS This is the first study to investigate the catalyst's antimicrobial mechanism of action, with the cytoplasmic membrane being a target for cellular injury.
Collapse
Affiliation(s)
- Samantha L Sewell
- School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH, UK
| | - Lucy Owen
- School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH, UK
| | - Katie Laird
- School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH, UK
| | - Katherine D Huddersman
- School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH, UK
| | - Susannah E Walsh
- School of Pharmacy, Faculty of Health and Life Sciences, De Montfort University, Leicester, LE1 9BH, UK.,School of Pharmacy and Life Sciences, Robert Gordon University, Aberdeen, AB10 7AQ, UK
| |
Collapse
|
29
|
Pujiarti H, Pangestu ZA, Sholeha N, Nasikhudin N, Diantoro M, Utomo J, Aziz MSA. The Effect of Acetylene Carbon Black (ACB) Loaded on Polyacrylonitrile (PAN) Nanofiber Membrane Electrolyte for DSSC Applications. Micromachines (Basel) 2023; 14:394. [PMID: 36838094 PMCID: PMC9960271 DOI: 10.3390/mi14020394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/27/2023] [Accepted: 01/31/2023] [Indexed: 06/18/2023]
Abstract
Nanofiber membranes are starting to be used as an electrolyte storage medium because of their high porosity, which causes ionic conductivity, producing high energy. The ability of nanofiber membranes to absorb electrolytes proves their stability when used for a long time. In this study, the loading of acetylene carbon black (ACB) on polyacrylonitrile (PAN) is made by the electrospun method, which in turn is applied as an electrolyte medium in DSSC. Materials characterization was carried out through FTIR to determine the functional groups formed and SEM to observe morphology and diameter distribution. Furthermore, for DSSC performance, efficiency and EIS tests were carried out. The optimum nanofiber membrane was shown by esPACB1, with the highest efficiency reaching 1.92% with a porosity of 73.43%, nanofiber diameter of 172.9 ± 2.2 nm, an absorbance of 1850, and an electron lifetime of 0.003 ms.
Collapse
Affiliation(s)
- Herlin Pujiarti
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
- Centre of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Zahrotul Ayu Pangestu
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Nabella Sholeha
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Nasikhudin Nasikhudin
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
- Centre of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Markus Diantoro
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
- Centre of Advanced Materials for Renewable Energy (CAMRY), Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Joko Utomo
- Department of Physics, Faculty of Mathematics and Natural Sciences, Universitas Negeri Malang, Jl. Semarang 5, Malang 65145, Indonesia
| | - Muhammad Safwan Abd Aziz
- Faculty of Science, Universiti Teknologi Malaysia, 05-07 Level 5 Block T05 Laser Center, Skudai 81310, Johor, Malaysia
| |
Collapse
|
30
|
Usselmann M, Bansmann J, Kuehne AJC. Switchable Polyacrylonitrile-Copolymer for Melt-Processing and Thermal Carbonization-3D Printing of Carbon Supercapacitor Electrodes with High Capacitance. Adv Mater 2023; 35:e2208484. [PMID: 36417702 DOI: 10.1002/adma.202208484] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/31/2022] [Indexed: 06/16/2023]
Abstract
Polyacrylonitrile (PAN) represents the most widely used precursor for carbon fibers and carbon materials. Carbon materials stand out with their high mechanical performance, but they also show excellent electrical conductivity and high surface area. These properties render carbon materials suitable as electrode material for fuel cells, batteries, and supercapacitors. However, PAN has to be processed from solution before being thermally converted to carbon, limiting its final format to fibers, films, and non-wovens. Here, a PAN-copolymer with an intrinsic plasticizer is presented to reduce the melting temperature and avoid undesired entering of the thermal carbonization regime. This plasticizer enables melt extrusion-based additive manufacturing (EAM). The plasticizer in the PAN-copolymer can be switched to increase the melting temperature after processing, allowing the 3D-melt-printed workpiece to be thermally carbonized after EAM. Melt-processing of the PAN copolymer extends the freedom-in-design of carbon materials to mold-free rapid prototyping, in the absence of solvents, which enables more economic and sustainable manufacturing processes. As an example for the capability of this material system, open meshed carbon electrodes are printed for supercapacitors that are metal- and binder-free with an optimized thickness of 1.5 mm and a capacitance of up to 387 mF cm-2 .
Collapse
Affiliation(s)
- Michael Usselmann
- Institute of Macromolecular and Organic Chemistry, Ulm University, 89081, Ulm, Germany
| | - Joachim Bansmann
- Institute of Surface Chemistry and Catalysis, Ulm University, 89081, Ulm, Germany
| | - Alexander J C Kuehne
- Institute of Macromolecular and Organic Chemistry, Ulm University, 89081, Ulm, Germany
| |
Collapse
|
31
|
Pathirana MA, Dissanayake NSL, Wanasekara ND, Mahltig B, Nandasiri GK. Chitosan-Graphene Oxide Dip-Coated Polyacrylonitrile-Ethylenediamine Electrospun Nanofiber Membrane for Removal of the Dye Stuffs Methylene Blue and Congo Red. Nanomaterials (Basel) 2023; 13:nano13030498. [PMID: 36770459 PMCID: PMC9920196 DOI: 10.3390/nano13030498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 05/14/2023]
Abstract
Textile wastewater accommodates many toxic organic contaminants that could potentially threaten the ecosystem if left untreated. Methylene blue is a toxic, non-biodegradable, cationic dye that is reportedly observed in significant amounts in the textile effluent stream as it is widely used to dye silk and cotton fabrics. Congo red is a carcinogenic anionic dye commonly used in the textile industry. This study reports an investigation of methylene blue and Congo red removal using a chitosan-graphene oxide dip-coated electrospun nanofiber membrane. The fabricated nanocomposite was characterized using Scanning Electron Microscopy (SEM), FT-IR Spectroscopy, Raman Spectroscopy, UV-vis Spectroscopy, Drop Shape Analyzer, and X-ray Diffraction. The isotherm modeling confirmed a maximum adsorptive capacity of 201 mg/g for methylene blue and 152 mg/g for Congo red, which were well fitted with a Langmuir isotherm model indicating homogenous monolayer adsorption.
Collapse
Affiliation(s)
- Maadri A. Pathirana
- Department of Textile and Apparel Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - Nethmi S. L. Dissanayake
- Department of Textile and Apparel Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - Nandula D. Wanasekara
- Department of Textile and Apparel Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
| | - Boris Mahltig
- Faculty of Textile and Clothing Technology, Hochschule Niederrhein—University of Applied Sciences, 47707 Krefeld, Germany
| | - Gayani K. Nandasiri
- Department of Textile and Apparel Engineering, University of Moratuwa, Moratuwa 10400, Sri Lanka
- Correspondence:
| |
Collapse
|
32
|
He W, Lin T, Song Z, Cheng Y, Zheng R, Chen W, Miras HN, Song YF. Fabrication of Epitaxially Grown Mg 2Al-LDH-Modified Nanofiber Membranes for Efficient and Sustainable Separation of Water-in-Oil Emulsion. ACS Appl Mater Interfaces 2023; 15:4755-4763. [PMID: 36629917 DOI: 10.1021/acsami.2c19015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Efficient separation of water-in-oil emulsion is of great importance but remains highly challenging since such emulsion contains stable tiny droplets with a diameter less than 20 μm. Herein, we reported the fabrication of a modular fibrous functional membrane using an "in situ growth and covalent functionalization" strategy. The as-prepared PAN@LDH@OTS (PAN = polyacrylonitrile; LDH = layered double hydroxides; and OTS = octadecyltrichlorosilane) membrane possessed an interlaced rough nanostructured surface with intriguing superhydrophobic/superlipophilic properties. When applied for the separation of surfactant-stabilized water-in-oil emulsion (SSE), the PAN@LDH@OTS membrane exhibited an ultrahigh permeation flux of up to 4.63 × 104 L m-2 h-1 with an outstanding separation efficiency of >99.92%, outperforming most of the state-of-the-art membranes. In addition, the membrane can maintain a stable permeation flux and superhydrophobic/superlipophilic properties after 20 times of use. Detailed characterization demonstrated that the demulsification of the SSE process was as follows: first, the droplets can be easily adsorbed to the PAN@LDH@OTS membrane due to the improved intermolecular interactions between OTS and the surfactants (Span 80); second, the droplets can be deformed by the electropositive LDH laminate; and third, the deformed tiny emulsion droplets coalesced into large droplets and floated up, and as a result, efficient separation of SSE can be achieved.
Collapse
Affiliation(s)
- Wenjun He
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Tong Lin
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Ziheng Song
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Yao Cheng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Ruoxuan Zheng
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Wei Chen
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| | - Haralampos N Miras
- WestCHEM, School of Chemistry, University of Glasgow, GlasgowG12 8QQ, U.K
| | - Yu-Fei Song
- State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing100029, P. R. China
| |
Collapse
|
33
|
Al Angari YM, Almulaiky YQ, Alotaibi MM, Hussein MA, El-Shishtawy RM. Synthesis and Characterization of Aminoamidine-Based Polyacrylonitrile Fibers for Lipase Immobilization with Effective Reusability and Storage Stability. Int J Mol Sci 2023; 24:ijms24031970. [PMID: 36768290 PMCID: PMC9915712 DOI: 10.3390/ijms24031970] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/20/2023] Open
Abstract
Lipases are extensively utilized industrial biocatalysts that play an important role in various industrial and biotechnological applications. Herein, polyacrylonitrile (PAN) was treated with hexamethylene diamine (HMDA) and activated by glutaraldehyde, then utilized as a carrier support for Candida rugosa lipase. In this regard, the morphological structure of modified PAN before and after the immobilization process was evaluated using FTIR and SEM analyses. The immobilized lipase exhibited the highest activity at pH 8.0, with an immobilization yield of 81% and an activity of 91%. The optimal pH and temperature for free lipase were 7.5 and 40 °C, while the immobilized lipase exhibited its optimal activity at a pH of 8.0 and a temperature of 50 °C. After recycling 10 times, the immobilized lipase maintained 76% of its activity and, after 15 reuses, it preserved 61% of its activity. The lipase stability was significantly improved after immobilization, as it maintained 76% of its initial activity after 60 days of storage. The calculated Km values were 4.07 and 6.16 mM for free and immobilized lipase, and the Vmax values were 74 and 77 μmol/mL/min, respectively. These results demonstrated that synthetically modified PAN is appropriate for immobilizing enzymes and has the potential for commercial applications.
Collapse
Affiliation(s)
- Yasser M. Al Angari
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Yaaser Q. Almulaiky
- Department of Chemistry, College of Science and Arts at Khulis, University of Jeddah, Jeddah 21921, Saudi Arabia
| | - Maha M. Alotaibi
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mahmoud A. Hussein
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Reda M. El-Shishtawy
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: or
| |
Collapse
|
34
|
Skvortsov IY, Maksimov NM, Kuzin MS, Toms RV, Varfolomeeva LA, Chernikova EV, Kulichikhin VG. Influence of Alkyl Acrylate Nature on Rheological Properties of Polyacrylonitrile Terpolymers Solutions, Spinnability and Mechanical Characteristics of Fibers. Materials (Basel) 2022; 16:ma16010107. [PMID: 36614445 PMCID: PMC9821233 DOI: 10.3390/ma16010107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/17/2022] [Accepted: 12/21/2022] [Indexed: 06/12/2023]
Abstract
The influence of alkyl acrylate comonomers in the rank of methyl- (MA), butyl- (BA), ethylhexyl- (EGA), and lauryl- (LA) in ternary copolymers based on acrylonitrile, alkyl acrylate and acrylamide (PAN-alkyl acrylate) on their solutions rheological behavior in dimethyl sulfoxide (DMSO), and mechanical properties of the spun fibers have been investigated. To reveal the role of molecular weight, two series of copolymers with molecular weights of ~50 and 150 kg/mol have been studied. It was shown that the nature of the alkyl acrylate does not significantly affect the rheological behavior of their solutions regardless of the length of the alkyl substituent and the content of the alkyl acrylate in copolymers. An exception is the high-molecular PAN-LA, which is characterized by a non-Newtonian behavior at lower concentrations. Two series of fibers were spun from the characterized ranks of low and high-molecular-weight copolymer solutions. For all copolymers, a 2.5-5-fold increase in the strength and elastic modulus of the fiber was found with an increase in Mw. It has been shown that PAN-MA and PAN-LA fibers have a tensile strength of 800 MPa that is 1.5-3 times higher than that of other copolymers spun in the same conditions.
Collapse
Affiliation(s)
- Ivan Yu. Skvortsov
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Nikita M. Maksimov
- Faculty of Materials Sciences, Lomonosov Moscow State University, Leninskiye Gory, 1, Building 73, 119991 Moscow, Russia
| | - Mikhail S. Kuzin
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Roman V. Toms
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
- Institute of Fine Chemical Technologies Named after M.V. Lomonosov, MIREA–Russian Technological University, Vernadsky Ave., 86, 119571 Moscow, Russia
| | - Lydia A. Varfolomeeva
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| | - Elena V. Chernikova
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
- Faculty of Chemistry, Lomonosov Moscow State University, Leninskiye Gory, 1, Building 3, 119991 Moscow, Russia
| | - Valery G. Kulichikhin
- Institute of Petrochemical Synthesis Named after A.V. Topchiev, Russian Academy of Sciences, Leninsky Ave., 29, 119991 Moscow, Russia
| |
Collapse
|
35
|
Gupta A, Sharma V, Mishra PK, Ekielski A. A Review on Polyacrylonitrile as an Effective and Economic Constituent of Adsorbents for Wastewater Treatment. Molecules 2022; 27. [PMID: 36557823 DOI: 10.3390/molecules27248689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/22/2022] [Accepted: 11/25/2022] [Indexed: 12/14/2022]
Abstract
Water gets polluted due to the dumping of untreated industrial waste into bodies of water, particularly those containing heavy metals and dyes. Industrial water contains both inorganic and organic wastes. Numerous adsorbents that are inexpensive and easily available can be used to address the issue of water deterioration. This review report is focused on polyacrylonitrile as an efficient constituent of adsorbents to extract toxic ions and dyes. It discusses the various formulations of polyacrylonitrile, such as ion exchange resins, chelating resins, fibers, membranes, and hydrogels, synthesized through different polymerization methods, such as suspension polymerization, electrospinning, grafting, redox, and emulsion polymerization. Moreover, regeneration of adsorbent and heavy metal ions makes the adsorption process more cost-effective and efficient. The literature reporting successful regeneration of the adsorbent is included. The factors affecting the performance and outcomes of the adsorption process are also discussed.
Collapse
|
36
|
Chernikova EV, Osipova NI, Plutalova AV, Toms RV, Gervald AY, Prokopov NI, Kulichikhin VG. Melt-Spinnable Polyacrylonitrile-An Alternative Carbon Fiber Precursor. Polymers (Basel) 2022; 14. [PMID: 36501614 DOI: 10.3390/polym14235222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 11/24/2022] [Accepted: 11/26/2022] [Indexed: 12/05/2022] Open
Abstract
The review summarizes recent advances in the production of carbon fiber precursors based on melt-spun acrylonitrile copolymers. Approaches to decrease the melting point of polyacrylonitrile and acrylonitrile copolymers are analyzed, including copolymerization with inert comonomers, plasticization by various solvents and additives, among them the eco-friendly ways to use the carbon dioxide and ionic liquids. The methods for preliminary modification of precursors that provides the thermal oxidative stabilization of the fibers without their melting and the reduction in the stabilization duration without the loss of the mechanical characteristics of the fibers are discussed. Special attention is paid to different ways of crosslinking by irradiation with different sources. Examples of the carbon fibers preparation from melt-processable acrylonitrile copolymers are considered in detail. A patent search was carried out and the information on the methods for producing carbon fibers from precursors based on melt-spun acrylonitrile copolymers are summarized.
Collapse
|
37
|
Han X, Tao Y, Xu C, Deng Y, Meng Z, Dou Z, Wang P, Feng Q. Electrospinning of n-hemin/PAN Nanocomposite Membranes and Its Photo-Enhanced Enzyme-like Catalysis. Polymers (Basel) 2022; 14. [PMID: 36501529 DOI: 10.3390/polym14235135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2022] [Revised: 11/19/2022] [Accepted: 11/21/2022] [Indexed: 11/30/2022] Open
Abstract
Hemin possesses great potential in eliminating organic pollutants due to its mild reaction condition, light-harvesting efficiency, and environmental friendliness. However, it has drawbacks such as being easy to aggregate and hard to recycle, and poor stability should be improved in practical application. Herein, the subject developed an electrospinning approach to enable the hemin particulates to be immobilized onto polyacrylonitrile (PAN) nanofibers stably. Hydrogen peroxide (H2O2) was adopted as an oxidant in the system to simulate the enzymatic catalysis of hemin in an organism. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflection spectroscopy (DRS), and electron spin resonance spectroscopy (ESR) analysis was employed to discuss the morphology, structure, and mechanism of the prepared n-hemin/PAN nanocomposite membranes, and 0.02 mmol L-1 of the rhodamine B (RhB) removal activity in different conditions was also verified with these membranes. The kinetic studies showed that n-hemin/PAN nanocomposite membranes maintained excellent properties both in adsorption and degradation. Around 42% RhB could be adsorbed in the dark, while 91% RhB decolorized under xenon lamp irradiation in 110 min, suggesting the catalytic performance of n-hemin/PAN was greatly driven by light irradiation. Differing from the axial coordinated hemin complexes, n-hemin/PAN would catalyze hydrogen peroxide into •OH radicals rather than •OOH and high-valent metal-oxo species. This work provides an effective way to support hemin as nanocomposite membranes, in which the molecular interaction between polymer and hemin made their light adsorption an obvious red shift.
Collapse
|
38
|
Yushkin A, Basko A, Balynin A, Efimov M, Lebedeva T, Ilyasova A, Pochivalov K, Volkov A. Effect of Acetone as Co-Solvent on Fabrication of Polyacrylonitrile Ultrafiltration Membranes by Non-Solvent Induced Phase Separation. Polymers (Basel) 2022; 14:4603. [PMID: 36365596 PMCID: PMC9657875 DOI: 10.3390/polym14214603] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 09/28/2023] Open
Abstract
For the first time, the presence of acetone in the casting solutions of polyacrylonitrile (PAN) in dimethylsulfoxide or N-methyl-2-pyrrolidone was studied with regards to thermodynamical aspects of phase separation of polymeric solutions induced by contact with non-solvent (water), formation and performance of porous membranes of ultrafiltration range. The positions of the liquid equilibrium binodals on the phase diagrams of these three-component and pseudo-three-component mixtures were determined. For PAN-N-methyl-2-pyrrolidone-water glass transition curve on a ternary phase diagram was plotted experimentally for the first time. The real-time evolution of the structure of mixtures of PAN with solvents (co-solvents) upon contact with a non-solvent (water) has been studied. The thermodynamic analysis of the phase diagrams of these mixtures, together with optical data, made it possible to propose a mechanism of structure formation during non-solvent induced phase separation of different mixtures. The addition of acetone promotes the formation of a spongy layer on the membrane surface, which decreases the probability of defect formation on the membrane surface and keeps finger-like macrovoids from the underlying layers of the membrane. It was shown that the molecular weight cut-off (MWCO) of the membranes can be improved from 58 down to 1.8 kg/mol by changing the acetone content, while polymer concentration remained the same.
Collapse
Affiliation(s)
- Alexey Yushkin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Andrey Basko
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Alexey Balynin
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Mikhail Efimov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| | - Tatyana Lebedeva
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Anna Ilyasova
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Konstantin Pochivalov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
- G.A. Krestov Institute of Solution Chemistry of the Russian Academy of Sciences, 1 ul. Akademicheskaja, 153045 Ivanovo, Russia
| | - Alexey Volkov
- A.V. Topchiev Institute of Petrochemical Synthesis RAS, 29 Leninsky Prospekt, 119991 Moscow, Russia
| |
Collapse
|
39
|
Acarer S, Pir İ, Tüfekci M, Erkoç T, Öztekin V, Dikicioğlu C, Demirkol GT, Durak SG, Özçoban MŞ, Çoban TYT, Çavuş S, Tüfekci N. Characterisation and Mechanical Modelling of Polyacrylonitrile-Based Nanocomposite Membranes Reinforced with Silica Nanoparticles. Nanomaterials (Basel) 2022; 12:nano12213721. [PMID: 36364496 PMCID: PMC9657008 DOI: 10.3390/nano12213721] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/19/2022] [Accepted: 10/20/2022] [Indexed: 06/12/2023]
Abstract
In this study, neat polyacrylonitrile (PAN) and fumed silica (FS)-doped PAN membranes (0.1, 0.5 and 1 wt% doped PAN/FS) are prepared using the phase inversion method and are characterised extensively. According to the Fourier Transform Infrared (FTIR) spectroscopy analysis, the addition of FS to the neat PAN membrane and the added amount changed the stresses in the membrane structure. The Scanning Electron Microscope (SEM) results show that the addition of FS increased the porosity of the membrane. The water content of all fabricated membranes varied between 50% and 88.8%, their porosity ranged between 62.1% and 90%, and the average pore size ranged between 20.1 and 21.8 nm. While the neat PAN membrane's pure water flux is 299.8 L/m2 h, it increased by 26% with the addition of 0.5 wt% FS. Furthermore, thermal gravimetric analysis (TGA) and differential thermal analysis (DTA) techniques are used to investigate the membranes' thermal properties. Finally, the mechanical characterisation of manufactured membranes is performed experimentally with tensile testing under dry and wet conditions. To be able to provide further explanation to the explored mechanics of the membranes, numerical methods, namely the finite element method and Mori-Tanaka mean-field homogenisation are performed. The mechanical characterisation results show that FS reinforcement increases the membrane rigidity and wet membranes exhibit more compliant behaviour compared to dry membranes.
Collapse
Affiliation(s)
- Seren Acarer
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - İnci Pir
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Mertol Tüfekci
- South Kensington Campus, Department of Mechanical Engineering, Imperial College London, Exhibition Road, London SW7 2AZ, UK
| | - Tuğba Erkoç
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, İstanbul 34320, Turkey
| | - Vehbi Öztekin
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Can Dikicioğlu
- Faculty of Mechanical Engineering, Istanbul Technical University, İstanbul 34437, Turkey
| | - Güler Türkoğlu Demirkol
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - Sevgi Güneş Durak
- Department of Environmental Engineering, Faculty of Engineering-Architecture, Nevsehir Haci Bektas Veli University, Nevsehir 50300, Turkey
| | - Mehmet Şükrü Özçoban
- Faculty of Civil Engineering, Yıldız Technical University, İstanbul 34220, Turkey
| | - Tuba Yelda Temelli Çoban
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| | - Selva Çavuş
- Department of Chemical Engineering, Faculty of Engineering, Istanbul University-Cerrahpaşa, İstanbul 34320, Turkey
| | - Neşe Tüfekci
- Department of Environmental Engineering, Faculty of Engineering, Istanbul University-Cerrahpasa, İstanbul 34320, Turkey
| |
Collapse
|
40
|
Zhang W, Li Y, Xing Z, Zhao M, Fu Y, Wang S, Wu Y, Zeng J, Li X, Ma H. Ionic COF Composite Membranes for Selective Perfluoroalkyl Substances Separation. Macromol Rapid Commun 2022:e2200718. [PMID: 36271740 DOI: 10.1002/marc.202200718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/30/2022] [Indexed: 11/11/2022]
Abstract
High-performance membranes are critical to membrane separation technology. In recent years, two-dimensional covalent organic frameworks (2D COFs) have attracted extensive attention in the field of membrane separation due to their high porosity, ordered channels and fine-tuned pore sizes, which are considered as excellent candidate to solve the trade-off between membrane selectivity and permeability. Herein, two kinds ionic 2D COFs with different charge properties (termed as iCOFs) are integrated into polyacrylonitrile (PAN) substrates to form two composite membranes (PAN@iCOFs) with excellent selective perfluoroalkyl substances separation performance with high solvent permeability and good mechanical properties. The as-prepared PAN@iCOFs composite membranes can selectively reject more than 99.0% of positively and negatively charged perfluoroalkyl substances in wastewater while maintaining with good stability and recyclability. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Wenxiang Zhang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yinhui Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Zheng Xing
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Minghan Zhao
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yu Fu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Shanshan Wang
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Yue Wu
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Jiahui Zeng
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Xiaoyu Li
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| | - Heping Ma
- School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an, 710049, P. R. China
| |
Collapse
|
41
|
Shen Z, Zhong J, Jiang S, Xie W, Zhan S, Lin K, Zeng L, Hu H, Lin G, Lin Y, Sun S, Shi Z. Polyacrylonitrile Porous Membrane-Based Gel Polymer Electrolyte by In Situ Free-Radical Polymerization for Stable Li Metal Batteries. ACS Appl Mater Interfaces 2022; 14:41022-41036. [PMID: 36044767 DOI: 10.1021/acsami.2c11397] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Because of their high ionic conductivity, utilizing gel polymer electrolytes (GPEs) is thought to be an effective way to accomplish high-energy-density batteries. Nevertheless, most GPEs have poor adaptability to Ni-rich cathodes to alleviate the problem of inevitable rapid capacity decay during cycling. Therefore, to match LiNi0.8Co0.1Mn0.1O2 (NCM811), we applied pentaerythritol tetraacrylate (PETEA) monomers to polymerize in situ in a polyacrylonitrile (PAN) membrane to obtain GPEs (PETEA-TCGG-PAN). The impedance variations and key groups during the in situ polymerization of PETEA-TCGG-PAN are investigated in detail. PETEA-TCGG-PAN with a high lithium-ion transference number (0.77) exhibits an electrochemical decomposition voltage of 5.15 V. Noticeably, the NCM811|PETEA-TCGG-PAN|Li battery can cycle at 2C for 120 cycles with a capacity retention rate of 89%. Even at 6C, the discharge specific capacity is able to reach 101.47 mAh g-1. The combination of LiF and Li2CO3 at the CEI interface is the reason for the improved rate performance. Moreover, when commercialized LFP is used as the cathode, the battery can also cycle stably for 150 cycles at 0.5C. PETEA and PAN can together foster the transportation of Li+ with the construction of a fast ion transport channel, making a contribution to stable charge-discharge of the above batteries. This study provides an innovative design philosophy for designing in situ GPEs in high-energy-density lithium metal batteries.
Collapse
Affiliation(s)
- Zhichuan Shen
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Jiawei Zhong
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Shiyong Jiang
- School of Electrical Engineering, Chongqing University, No.174 Shazhengjie, Shapingba, Chongqing 400044, China
| | - Wenhao Xie
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Shiying Zhan
- Gree Altairnano Energy Co., Ltd, No. 16, Jinhu Road, Qingwan Industrial Park, Jinwan District, Zhuhai City, Guangdong Province 519041, China
| | - Kaiji Lin
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Linyong Zeng
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Hailing Hu
- Gree Altairnano Energy Co., Ltd, No. 16, Jinhu Road, Qingwan Industrial Park, Jinwan District, Zhuhai City, Guangdong Province 519041, China
| | - Guide Lin
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Yuhan Lin
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| | - Shuhui Sun
- Institut National de la Recherche Scientifique-Énergie Matériaux et Télécommunications 1650 Boulevard Lionel-Boulet, Varennes, Quebec J3X 1S2, Canada
| | - Zhicong Shi
- Institute of Batteries, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, China
| |
Collapse
|
42
|
Lin ZI, Tsai HL, Liu GL, Lu XH, Cheng PW, Chi PL, Wang CK, Tsai TH, Wang CC, Yang JHC, Ko BT, Chen CK. Preparation of CO 2 -based Cationic Polycarbonate/ Polyacrylonitrile Nanofibers with an Optimal Fibrous Microstructure for Antibacterial Applications. Macromol Biosci 2022; 22:e2200178. [PMID: 35902381 DOI: 10.1002/mabi.202200178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 06/24/2022] [Indexed: 11/12/2022]
Abstract
Utilizing CO2 as one of the monomer resource, poly(vinylcyclohexene carbonates) (PVCHCs) are used as the precursor for preparing cationic PVCHCs (CPVCHCs) via thiol-ene click functionalization. Through the functionalization, CPVCHC-43 with a tertiary amine density of 43% relative to the backbone is able to display a significantly antibacterial ability against Staphylococcus aureus (S. aureus). Blending CPVCHC-43 with polyacrylonitrile (PAN), CPVCHC/PAN nanofiber meshes (NFMs) have been successfully prepared by electrospinning. More importantly, two crucial fibrous structural factors including CPVCHC/PAN weight ratio and fiber diameter have been systematically investigated for the effects on the antibacterial performance of the NFMs. Sequentially, a quaternization treatment has been employed on the NFMs with an optimal fibrous structure to enhance the antibacterial ability. The resulting quaternized NFMs have demonstrated the great biocidal effects against Gram-positive and Gram-negative bacteria. Moreover, the excellent biocompatibility of the quaternized NFMs have also been thoroughly evaluated and verified. This article is protected by copyright. All rights reserved.
Collapse
Affiliation(s)
- Zheng-Ian Lin
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Han-Lin Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Guan-Lin Liu
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Xie-Hong Lu
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Pei-Wen Cheng
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan.,Department of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| | - Pei-Ling Chi
- Department of Medical Education and Research, Kaohsiung Veterans General Hospital, Kaohsiung, 81362, Taiwan
| | - Chih-Kuang Wang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan
| | - Tzu-Hsien Tsai
- Division of Cardiology and Department of Internal Medicine, Ditmanson Medical Foundation Chiayi Christian Hospital, Chiayi, 60002, Taiwan
| | - Chih-Chia Wang
- Department of Chemical and Materials Engineering, Chung Cheng Institute of Technology, National Defense University, Taoyuan, 33509, Taiwan.,System Engineering and Technology Program, National Yang Ming Chiao Tung University, Hsinchu, 30010, Taiwan
| | - Jason Hsiao Chun Yang
- Department of Fiber and Composite Materials, Feng Chia University, Taichung, 40724, Taiwan
| | - Bao-Tsan Ko
- Department of Chemistry, National Chung Hsing University, Taichung, 40227, Taiwan
| | - Chih-Kuang Chen
- Polymeric Biomaterials Laboratory, Department of Materials and Optoelectronic Science, National Sun Yat-Sen University, Kaohsiung, 80424, Taiwan
| |
Collapse
|
43
|
Özer EM, Apetrei RM, Camurlu P. Trace-level phenolics detection based on composite PAN-MWCNTs nanofibers. Chembiochem 2022; 23:e202200139. [PMID: 35775384 DOI: 10.1002/cbic.202200139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/29/2022] [Indexed: 11/10/2022]
Abstract
In view of major concerns regarding toxicity (genotoxic, mutagenic, hepatotoxic) of phenolics, there is an on-going necessity for sensitive and accurate analytical procedures for detection and measurements in environmental field, water, and food quality control. The current study proposes composite polyacrylonitrile nanofibrous assemblies enriched with multi-wall carbon nanotubes (PAN-MWCNTs NFs) as suitable immobilization platforms for cross-linking of Tyrosinase in detection of both diphenols and monophenols, which are of much interest in water contamination.
Collapse
Affiliation(s)
- Elif Merve Özer
- Akdeniz Üniversitesi: Akdeniz Universitesi, Chemistry, TURKEY
| | | | - Pinar Camurlu
- Akdeniz University: Akdeniz Universitesi, Department of Chemistry, Akdeniz University Department of Chemistry, 07058, Antalya, TURKEY
| |
Collapse
|
44
|
Ahn H, Gwak HJ, Kim YM, Yu WR, Lee WJ, Yeo SY. Microstructure Analysis of Drawing Effect and Mechanical Properties of Polyacrylonitrile Precursor Fiber According to Molecular Weight. Polymers (Basel) 2022; 14:polym14132625. [PMID: 35808684 PMCID: PMC9268880 DOI: 10.3390/polym14132625] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 06/20/2022] [Accepted: 06/27/2022] [Indexed: 12/04/2022] Open
Abstract
Polyacrylonitrile (PAN) fiber is the most widely used carbon fiber precursor, and methyl acrylate (MA) copolymer is widely used for research and commercial purposes. The properties of P (AN-MA) fibers improve increasingly as the molecular weight increases, but high-molecular-weight materials have some limitations with respect to the manufacturing process. In this study, P (AN-MA) precursor fibers of different molecular weights were prepared and analyzed to identify an efficient carbon fiber precursor manufacturing process. The effects of the molecular weight of P (AN-MA) on its crystallinity and void structure were examined, and precursor fiber content and process optimizations with respect to molecular weight were conducted. The mechanical properties of high-molecular-weight P (AN-MA) were good, but the internal structure of the high-molecular-weight material was not the best because of differences in molecular entanglement and mobility. The structural advantages of a relatively low molecular weight were confirmed. The findings of this study can help in the manufacturing of precursor fibers and carbon fibers with improved properties.
Collapse
Affiliation(s)
- Hyunchul Ahn
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.A.); (H.J.G.)
| | - Hyeon Jung Gwak
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.A.); (H.J.G.)
- Department of Fiber System Engineering, Dankook University, Yongin 16890, Korea;
| | - Yong Min Kim
- Department of Materials Science and Engineering (MSE) and Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 08826, Korea; (Y.M.K.); (W.-R.Y.)
| | - Woong-Ryeol Yu
- Department of Materials Science and Engineering (MSE) and Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 08826, Korea; (Y.M.K.); (W.-R.Y.)
| | - Won Jun Lee
- Department of Fiber System Engineering, Dankook University, Yongin 16890, Korea;
| | - Sang Young Yeo
- Advanced Textile R&D Department, Korea Institute of Industrial Technology, Ansan 15588, Korea; (H.A.); (H.J.G.)
- Correspondence: ; Tel.: +82-31-8040-6068
| |
Collapse
|
45
|
Coronas M, Holade Y, Cornu D. Review of the Electrospinning Process and the Electro-Conversion of 5-Hydroxymethylfurfural (HMF) into Added-Value Chemicals. Materials (Basel) 2022; 15:ma15124336. [PMID: 35744395 PMCID: PMC9229014 DOI: 10.3390/ma15124336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 06/12/2022] [Accepted: 06/17/2022] [Indexed: 11/23/2022]
Abstract
Electrochemical converters (electrolyzers, fuel cells, and batteries) have gained prominence during the last decade for the unavoidable energy transition and the sustainable synthesis of platform chemicals. One of the key elements of these systems is the electrode material on which the electrochemical reactions occur, and therefore its design will impact their performance. This review focuses on the electrospinning method by examining a number of features of experimental conditions. Electrospinning is a fiber-spinning technology used to produce three-dimensional and ultrafine fibers with tunable diameters and lengths. The thermal treatment and the different analyses are discussed to understand the changes in the polymer to create usable electrode materials. Electrospun fibers have unique properties such as high surface area, high porosity, tunable surface properties, and low cost, among others. Furthermore, a little introduction to the 5-hydroxymethylfurfural (HMF) electrooxidation coupled to H2 production was included to show the benefit of upgrading biomass derivates in electrolyzers. Indeed, environmental and geopolitical constraints lead to shifts towards organic/inorganic electrosynthesis, which allows for one to dispense with polluting, toxic and expensive reagents. The electrooxidation of HMF instead of water (OER, oxygen evolution reaction) in an electrolyzer can be elegantly controlled to electro-synthesize added-value organic chemicals while lowering the required energy for CO2-free H2 production.
Collapse
|
46
|
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: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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.
Collapse
Affiliation(s)
| | - Tatyana S. Anokhina
- Correspondence: ; Tel.: +7-(495)-647-59-27 (ext. 202); Fax: +7-(495)-633-85-20
| | | | | | | | | |
Collapse
|
47
|
Carmo JD, Justino NM, Matias MS, Puerari RC, Matias WG, Ladner D, Vicentini DS, Nagel Hassemer ME. Membrane adsorption with polyacrylonitrile prepared with superfine powder-activated carbon, case study: separation process applied in water treatment containing diclofenac. Environ Technol 2022; 43:478-488. [PMID: 32623968 DOI: 10.1080/09593330.2020.1793006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Accepted: 07/01/2020] [Indexed: 06/11/2023]
Abstract
Polyacrylonitrile membranes (PAN) have high stability against chemical agents, making them suitable for a wide range of applications as such Ultrafiltration processes. Ultrafiltration membranes composed of PAN/Superfine powder activated carbon (S-PAC) mixtures can be a good research route, aiming the development of a new separation processes for water treatment. The association of materials to form a single product can have technological and economic advantages in separation processes. In this study, S-PAC impregnated into PAN membranes were prepared, characterized and used, as a case study, to remove diclofenac (DCF) from water. The membranes (PAN/S-PAC) were synthesized with different concentrations of S-PAC (0.2, 0.6, 1.0, 3.0 and 5.0 wt%) by a phase inversion process. The results of the TEM characterizations of the S-PAC indicated the presence of micro and nanoparticles (∼10 nm) and tending to form micrometric clusters. The infrared spectra of the membranes were characteristic of PAN; however, vibrational bands attributed to the S-PAC spectrum were also observed, which indicated an interaction between the materials. The case study showed an increase in the water flux and in the DCF rejection efficiency, for composite membranes (PAN/S-PAC) with higher concentration of S-PAC. The results of static adsorption tests indicated that the mechanism of DCF rejection occurred predominantly by adsorption. There were indications that the PAN/S-PAC membranes formed a composite material and the PAN/S-PAC (3.0) presented the best study composition given the results. Although the research is in its initial phase, the results indicated that the composition can improve many water treatment systems.
Collapse
Affiliation(s)
- Juliana do Carmo
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Naiara Mottim Justino
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Marcelo Seleme Matias
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Rodrigo Costa Puerari
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - William Gerson Matias
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - David Ladner
- Department of Environmental Engineering and Earth Sciences, Clemson University, Anderson, SC, USA
| | - Denice Schulz Vicentini
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| | - Maria Eliza Nagel Hassemer
- Department of Environmental and Sanitary Engineering, Technological Center, Federal University of Santa Catarina, Florianópolis, Brazil
| |
Collapse
|
48
|
Zhao H, He Y, Wang Z, Zhao Y, Sun L. Mussel-Inspired Fabrication of PDA@PAN Electrospun Nanofibrous Membrane for Oil-in-Water Emulsion Separation. Nanomaterials (Basel) 2021; 11:3434. [PMID: 34947783 DOI: 10.3390/nano11123434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/01/2021] [Accepted: 12/15/2021] [Indexed: 11/17/2022]
Abstract
Emulsified oily wastewater threatens human health seriously, and traditional technologies are unable to separate emulsion containing small sized oil droplets. Currently, oil–water emulsions are usually separated by special wettability membranes, and researchers are devoted to developing membranes with excellent antifouling performance and high permeability. Herein, a novel, simple and low-cost method has been proposed for the separation of emulsion containing surfactants. Polyacrylonitrile (PAN) nanofibers were prepared via electrospinning and then coated by polydopamine (PDA) by using self-polymerization reactions in aqueous solutions. The morphology, structure and oil-in-water emulsion separation properties of the as-prepared PDA@PAN nanofibrous membrane were tested. The results show that PDA@PAN nanofibrous membrane has superhydrophilicity and almost no adhesion to crude oil in water, which exhibits excellent oil–water separation ability. The permeability and separation efficiency of n-hexane/water emulsion are up to 1570 Lm−2 h−1 bar−1 and 96.1%, respectively. Furthermore, after 10 cycles of separation, the permeability and separation efficiency values do not decrease significantly, indicating its good recycling performance. This research develops a new method for preparing oil–water separation membrane, which can be used for efficient oil-in-water emulsion separation.
Collapse
|
49
|
Nie X, Wu S, Hussain T, Wei Q. PCN-224 Nanoparticle/ Polyacrylonitrile Nanofiber Membrane for Light-Driven Bacterial Inactivation. Nanomaterials (Basel) 2021; 11:3162. [PMID: 34947511 DOI: 10.3390/nano11123162] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 11/18/2021] [Accepted: 11/19/2021] [Indexed: 01/21/2023]
Abstract
Increasing issues of pathogen drug resistance and spreading pose a serious threat to the ability to treat common infectious diseases, which encourages people to explore effective technology to meet the challenge. Photodynamic antibacterial inactivation (aPDI) is being explored for inactivating pathogens, which could be used as a novel approach to prevent this threat. Here, porphyrin-embedded MOF material (PCN-224) with photodynamic effect was synthesized, then the PCN-224 nanoparticles (NPs) were embedded into PAN nanofibers with an electrospinning process (PAN-PCN nanofiber membrane). On the one hand, polyacrylonitrile (PAN) nanofibers help to improve the stability of PCN-224 NPs, which could avoid their leakage. On the other, the PAN nanofibers are used as a support material to load bactericidal PCN-224 NPs, realizing recycling after bacterial elimination. An antibacterial photodynamic inactivation (aPDI) study demonstrated that the PAN-PCN 0.6% nanofiber membrane processed 3.00 log unit elimination towards a E. coli bacterial strain and 4.70 log unit towards a S. aureus strain under illumination. A mechanism study revealed that this efficient bacterial elimination was due to singlet oxygen (1O2). Although the materials are highly phototoxic, an MTT assay showed that the as fabricated nanofiber membranes had good biocompatibility in the dark, and the cell survival rates were all above 85%. Taken together, this work provided an application prospect of nanofibers with an aPDI effect to deal with the issues of pathogen drug resistance and spreading.
Collapse
|
50
|
Ahmad MAT, Abdul Rahman N. Preparation and Characterization of Highly Porous Polyacrylonitrile Electrospun Nanofibers Using Lignin as Soft Template via Selective Chemical Dissolution Technique. Polymers (Basel) 2021; 13:polym13223938. [PMID: 34833237 PMCID: PMC8617785 DOI: 10.3390/polym13223938] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 10/02/2021] [Accepted: 10/05/2021] [Indexed: 11/16/2022] Open
Abstract
In this study, polyacrylonitrile (PAN) was mixed with a renewable polymer, lignin, to produce electrospun nanofibers by using an electrospinning technique. Lignin was utilized as a soft template that was removed from the nanofibers by using a selective dissolution technique to create porous PAN nanofibers. These nanofibers were characterized with Fourier transform infrared (FTIR), field emission scanning electron microscopy (FESEM), thermogravimetry analysis (TGA), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) to study their properties and morphology. The results showed that lignin can be homogeneously mixed into the PAN solution and successfully electrospun into nanofibers. FESEM results showed a strong relationship between the PAN: lignin ratio and the diameter of the electrospun fibers. Lignin was successfully removed from electrospun nanofibers by a selective chemical dissolution technique, which resulted in roughness and porousness on the surface of the nanofibers. Based on the BET result, the specific surface area of the PAN/lignin nanofibers was more than doubled following the removal of lignin compared to PAN nanofibers. The highest specific surface area of nanofibers after selective chemical dissolution was found at an 8:2 ratio of PAN/lignin, which was 32.42 m2g−1 with an average pore diameter of 5.02 nm. The diameter of electrospun nanofibers was also slightly reduced after selective chemical dissolution. Porous PAN nanofibers can be seen as the precursors to the production of highly porous carbon nanofibers.
Collapse
Affiliation(s)
- Mohd Adib Tajuddin Ahmad
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
| | - Norizah Abdul Rahman
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia;
- Materials Synthesis and Characterization Laboratory, Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Correspondence:
| |
Collapse
|