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Kenawy ER, Moharram YI, Abouharga FS, Elfiky M. Electrospun network based on polyacrylonitrile-polyphenyl/titanium oxide nanofibers for high-performance supercapacitor device. Sci Rep 2024; 14:6683. [PMID: 38509116 PMCID: PMC10954625 DOI: 10.1038/s41598-024-56545-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Accepted: 03/07/2024] [Indexed: 03/22/2024] Open
Abstract
Nanofibers and mat-like polyacrylonitrile-polyphenyl/titanium oxide (PAN-Pph./TiO2) with proper electrochemical properties were fabricated via a single-step electrospinning technique for supercapacitor application. Scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM), thermogravimetry (TGA), fourier transform infrared (FTIR), X-ray diffraction (XRD) and energy dispersive X-ray (EDX) were conducted to characterize the morphological and chemical composition of all fabricated nanofibers. Furthermore, the electrochemical activity of the fabricated nanofibers for energy storage applications (supercapacitor) was probed by cyclic voltammetry (CV), charge-discharge (CD), and electrochemical impedance spectroscopy (EIS). The PAN-PPh./TiO2 nanofiber electrode revealed a proper specific capacitance of 484 F g-1 at a current density of 11.0 A g-1 compared with PAN (198 F g-1), and PAN-PPh. (352 F g-1) nanofibers using the charge-discharge technique. Furthermore, the PAN-PPh./TiO2 nanofiber electrode displayed a proper energy density of 16.8 Wh kg-1 at a power density (P) of 2749.1 Wkg-1. Moreover, the PAN-PPh./TiO2 nanofiber electrode has a low electrical resistance of 23.72 Ω, and outstanding cycling stability of 79.38% capacitance retention after 3000 cycles.
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Affiliation(s)
- El-Refaie Kenawy
- Polymer Research Group, Department of Chemistry, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Youssef I Moharram
- Analytical and Electrochemistry Research UNIT, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Fatma S Abouharga
- Analytical and Electrochemistry Research UNIT, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
| | - Mona Elfiky
- Analytical and Electrochemistry Research UNIT, Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt.
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2
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Yin B, Li J, Guo W, Dong H, Zhang G, Xin Y, Zhang G, Chen Q. Photocatalytic degradation of fluoranthene in soil suspension by TiO 2/α-FeOOH with enhanced charge transfer capacity. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2024; 31:20621-20636. [PMID: 38381294 DOI: 10.1007/s11356-024-32501-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Accepted: 02/12/2024] [Indexed: 02/22/2024]
Abstract
Polycyclic aromatic hydrocarbons (PAHs) in soil are potentially harmful to human health. However, the use of photocatalysis technology to treat soil contaminated with PAHs remains challenging. Therefore, TiO2/α-FeOOH composite photocatalyst has been synthesized by hydrothermal method and sol-gel method and applied to photocatalytic degradation of fluoranthene in soil. The morphology, elements, crystal structure, optical properties, electrochemical characteristics, and photocatalytic activity of TiO2/α-FeOOH have been characterized. Results showed that TiO2 is tightly fixed on the surface of α-FeOOH, and TiO2/α-FeOOH had higher photocatalytic activity on photocatalytic degradation of fluoranthene in soil under simulated sunlight. The degradation efficiency of TiO2/α-FeOOH is 3.0 and 4.8 times higher than that of TiO2 and α-FeOOH, respectively. This is attributed to enhanced photocatalytic ability by enhancing the transfer capacity of electrons and holes and broadening the spectrum absorption range. The highest degradation efficiency was achieved when the pH of the soil is neutral, the ratio of water/soil is 10:1, and the dosage of catalyst is 50 mg/g. In addition, it was proved that •O2-, h+, and 1O2 are the main active substances in the photocatalysis of TiO2/α-FeOOH. The possible mechanism of a Z-type electron transfer structure was also proposed. The degradation products of fluoranthene were detected, and the degradation pathway was deduced.
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Affiliation(s)
- Bingjie Yin
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Jingying Li
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Wei Guo
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Haoqing Dong
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Guangshan Zhang
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Yanjun Xin
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
| | - Guodong Zhang
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China
- Academy of Dongying Efficient Agricultural Technology and Industry On Saline and Alkaline Land in Collaboration With, Qingdao Agricultural University, Dongying, 257029, P. R. China
| | - Qinghua Chen
- College of Resources and Environment, Qingdao Agricultural University, Qingdao Engineering Research Center for Rural Environment, Qingdao, P. R. China.
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Pant B, Park M, Kim AA. MXene-Embedded Electrospun Polymeric Nanofibers for Biomedical Applications: Recent Advances. MICROMACHINES 2023; 14:1477. [PMID: 37512788 PMCID: PMC10384458 DOI: 10.3390/mi14071477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 07/20/2023] [Accepted: 07/21/2023] [Indexed: 07/30/2023]
Abstract
Recently MXenes has gained immense attention as a new and exciting class of two-dimensional material. Due to their unique layered microstructure, the presence of various functional groups at the surface, earth abundance, and attractive electrical, optical, and thermal properties, MXenes are considered promising candidates for various applications such as energy, environmental, and biomedical. The ease of dispersibility and metallic conductivity of MXene render them promising candidates for use as fillers in polymer nanocomposites. MXene-polymer nanocomposites simultaneously benefit from the attractive properties of MXenes and the flexibility and facile processability of polymers. However, the potentiality of MXene to modify the electrospun nanofibers has been less studied. Understanding the interactions between polymeric nanofibers and MXenes is important to widen their role in biomedical applications. This review explores diverse methods of MXene synthesis, discusses our current knowledge of the various biological characteristics of MXene, and the synthesis of MXene incorporated polymeric nanofibers and their utilization in biomedical applications. The information discussed in this review serves to guide the future development and application of MXene-polymer nanofibers in biomedical fields.
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Affiliation(s)
- Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Allison A Kim
- Department of Healthcare Management, Woosong University, Daejon 34606, Republic of Korea
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Sadiq MU, Shah A, Haleem A, Shah SM, Shah I. Eucalyptus globulus Mediated Green Synthesis of Environmentally Benign Metal Based Nanostructures: A Review. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2019. [PMID: 37446535 DOI: 10.3390/nano13132019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/30/2023] [Accepted: 07/04/2023] [Indexed: 07/15/2023]
Abstract
The progress in nanotechnology has effectively tackled and overcome numerous global issues, including climate change, environmental contamination, and various lethal diseases. The nanostructures being a vital part of nanotechnology have been synthesized employing different physicochemical methods. However, these methods are expensive, polluting, eco-unfriendly, and produce toxic byproducts. Green chemistry having exceptional attributes, such as cost-effectiveness, non-toxicity, higher stability, environment friendliness, ability to control size and shape, and superior performance, has emerged as a promising alternative to address the drawbacks of conventional approaches. Plant extracts are recognized as the best option for the biosynthesis of nanoparticles due to adherence to the environmentally benign route and sustainability agenda 2030 of the United Nations. In recent decades, phytosynthesized nanoparticles have gained much attention for different scientific applications. Eucalyptus globulus (blue gum) is an evergreen plant belonging to the family Myrtaceae, which is the targeted point of this review article. Herein, we mainly focus on the fabrication of nanoparticles, such as zinc oxide, copper oxide, iron oxide, lanthanum oxide, titanium dioxide, magnesium oxide, lead oxide, nickel oxide, gold, silver, and zirconium oxide, by utilizing Eucalyptus globulus extract and its essential oils. This review article aims to provide an overview of the synthesis, characterization results, and biomedical applications of nanoparticles synthesized using Eucalyptus globulus. The present study will be a better contribution to the readers and the students of environmental research.
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Affiliation(s)
| | - Afzal Shah
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Abdul Haleem
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Syed Mujtaba Shah
- Department of Chemistry, Quaid-i-Azam University, Islamabad 45320, Pakistan
| | - Iltaf Shah
- Department of Chemistry, College of Science, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Del Sole R, Lo Porto C, Lotito S, Ingrosso C, Comparelli R, Curri ML, Barucca G, Fracassi F, Palumbo F, Milella A. Atmospheric Pressure Plasma Deposition of Hybrid Nanocomposite Coatings Containing TiO 2 and Carbon-Based Nanomaterials. Molecules 2023; 28:5131. [PMID: 37446794 DOI: 10.3390/molecules28135131] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/23/2023] [Accepted: 06/28/2023] [Indexed: 07/15/2023] Open
Abstract
Among the different applications of TiO2, its use for the photocatalytic abatement of organic pollutants has been demonstrated particularly relevant. However, the wide band gap (3.2 eV), which requires UV irradiation for activation, and the fast electron-hole recombination rate of this n-type semiconductor limit its photocatalytic performance. A strategy to overcome these limitations relies on the realization of a nanocomposite that combines TiO2 nanoparticles with carbon-based nanomaterials, such as rGO (reduced graphene oxide) and fullerene (C60). On the other hand, the design and realization of coatings formed of such TiO2-based nanocomposite coatings are essential to make them suitable for their technological applications, including those in the environmental field. In this work, aerosol-assisted atmospheric pressure plasma deposition of nanocomposite coatings containing both TiO2 nanoparticles and carbon-based nanomaterials, as rGO or C60, in a siloxane matrix is reported. The chemical composition and morphology of the deposited films were investigated for the different types of prepared nanocomposites by means of FT-IR, FEG-SEM, and TEM analyses. The photocatalytic activity of the nanocomposite coatings was evaluated through monitoring the photodegradation of methylene blue (MB) as a model organic pollutant. Results demonstrate that the nanocomposite coatings embedding rGO or C60 show enhanced photocatalytic performance with respect to the TiO2 counterpart. In particular, TiO2/C60 nanocomposites allow to achieve 85% MB degradation upon 180 min of UV irradiation.
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Affiliation(s)
- Regina Del Sole
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
| | - Chiara Lo Porto
- Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
| | - Sara Lotito
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
| | - Chiara Ingrosso
- Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy
| | - Roberto Comparelli
- Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy
| | - Maria Lucia Curri
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Istituto per i Processi Chimico Fisici, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali INSTM, Unita di Ricerca di Bari, 70126 Bari, Italy
| | - Gianni Barucca
- Dipartimento di Scienze e Ingegneria della Materia, dell'Ambiente ed Urbanistica, Università Politecnica delle Marche, 60121 Ancona, Italy
| | - Francesco Fracassi
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Istituto di Nanotecnologia, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
| | - Fabio Palumbo
- Istituto di Nanotecnologia, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
| | - Antonella Milella
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
- Istituto di Nanotecnologia, CNR, S.S. Bari, c/o Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, 70125 Bari, Italy
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6
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Bist A, Pant B, Ojha GP, Acharya J, Park M, Saud PS. Novel Materials in Perovskite Solar Cells: Efficiency, Stability, and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13111724. [PMID: 37299626 DOI: 10.3390/nano13111724] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 05/16/2023] [Accepted: 05/17/2023] [Indexed: 06/12/2023]
Abstract
Solar energy is regarded as the finest clean and green energy generation method to replace fossil fuel-based energy and repair environmental harm. The more expensive manufacturing processes and procedures required to extract the silicon utilized in silicon solar cells may limit their production and general use. To overcome the barriers of silicon, a new energy-harvesting solar cell called perovskite has been gaining widespread attention around the world. The perovskites are scalable, flexible, cost-efficient, environmentally benign, and easy to fabricate. Through this review, readers may obtain an idea about the different generations of solar cells and their comparative advantages and disadvantages, working mechanisms, energy alignment of the various materials, and stability achieved by applying variable temperature, passivation, and deposition methods. Furthermore, it also provides information on novel materials such as carbonaceous, polymeric, and nanomaterials that have been employed in perovskite solar in terms of the different ratios of doping and composite and their optical, electrical, plasmonic, morphological, and crystallinity properties in terms of comparative solar parameters. In addition, information on current trends and future commercialization possibilities of perovskite solar have been briefly discussed based on reported data by other researchers.
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Affiliation(s)
- Anup Bist
- Department of Chemistry, Kailali Multiple Campus, Farwestern University, Mahendranagar 10400, Nepal
| | - Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Gunendra Prasad Ojha
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Jiwan Acharya
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Prem Singh Saud
- Department of Chemistry, Kailali Multiple Campus, Farwestern University, Mahendranagar 10400, Nepal
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7
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Lin Y, Xie A, Xu J, Xue C, Cui J, Pan J. One-Step Hydrothermal Strategy for Preparation of a Self-Cleaning TiO 2/SiO 2 Fiber Membrane toward Oil-Water Separation in a Complex Environment. MEMBRANES 2023; 13:membranes13050514. [PMID: 37233575 DOI: 10.3390/membranes13050514] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/06/2023] [Accepted: 05/07/2023] [Indexed: 05/27/2023]
Abstract
Oil pollution caused by a large number of industrial activities and oil spill accidents has posed serious harm to the environment and human health. However, some challenges remain with the existing separation materials, such as poor stability and fouling resistance. Herein, a TiO2/SiO2 fiber membrane (TSFM) was prepared by a one-step hydrothermal method for oil-water separation in acid, alkali, and salt environments. The TiO2 nanoparticles were successfully grown on the fiber surface, endowing the membrane with superhydrophilicity/underwater superoleophobicity. The as-prepared TSFM exhibits high separation efficiency (above 98%) and separation fluxes (3016.38-3263.45 L·m-2·h-1) for various oil-water mixtures. Importantly, the membrane shows good corrosion resistance in acid, alkaline, and salt solutions and still maintains underwater superoleophobicity and high separation performance. The TSFM displays good performance after repeated separation, demonstrating its excellent antifouling ability. Importantly, the pollutants on the membrane surface can be effectively degraded under light radiation to restore its underwater superoleophobicity, showing the unique self-cleaning ability of the membrane. In view of its good self-cleaning ability and environmental stability, the membrane can be used for wastewater treatment and oil spill recovery and has a broad application prospect in water treatment in complex environments.
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Affiliation(s)
- Yinghao Lin
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Atian Xie
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
- Jiangsu Agrochem Laboratory Co., Ltd., Changzhou 213022, China
| | - Jian Xu
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Changguo Xue
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jiuyun Cui
- School of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China
| | - Jianming Pan
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
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Pant B, Park M, Kim AA. Electrospun Nanofibers for Dura Mater Regeneration: A Mini Review on Current Progress. Pharmaceutics 2023; 15:pharmaceutics15051347. [PMID: 37242589 DOI: 10.3390/pharmaceutics15051347] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/14/2023] [Accepted: 04/22/2023] [Indexed: 05/28/2023] Open
Abstract
Dural defects are a common problem in neurosurgical procedures and should be repaired to avoid complications such as cerebrospinal fluid leakage, brain swelling, epilepsy, intracranial infection, and so on. Various types of dural substitutes have been prepared and used for the treatment of dural defects. In recent years, electrospun nanofibers have been applied for various biomedical applications, including dural regeneration, due to their interesting properties such as a large surface area to volume ratio, porosity, superior mechanical properties, ease of surface modification, and, most importantly, similarity with the extracellular matrix (ECM). Despite continuous efforts, the development of suitable dura mater substrates has had limited success. This review summarizes the investigation and development of electrospun nanofibers with particular emphasis on dura mater regeneration. The objective of this mini-review article is to give readers a quick overview of the recent advances in electrospinning for dura mater repair.
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Affiliation(s)
- Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju 55338, Republic of Korea
- Woosuk Institute of Smart Convergence Life Care (WSCLC), Woosuk University, Wanju 55338, Republic of Korea
- Department of Automotive Engineering, Woosuk University, Wanju 55338, Republic of Korea
| | - Allison A Kim
- Department of Healthcare Management, Woosong University, Daejon 34606, Republic of Korea
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CdS Nanoparticles Decorated on Carbon Nanofibers as the First Ever Utilized as an Electrode for Advanced Energy Storage Applications. J Inorg Organomet Polym Mater 2023. [DOI: 10.1007/s10904-023-02548-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
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10
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Saleem M, Albaqami MD, Bahajjaj AAA, Ahmed F, Din E, Arifeen WU, Ali S. Wet-Chemical Synthesis of TiO 2/PVDF Membrane for Energy Applications. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010285. [PMID: 36615478 PMCID: PMC9822136 DOI: 10.3390/molecules28010285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/31/2022]
Abstract
To satisfy the ever-increasing energy demands, it is of the utmost importance to develop electrochemical materials capable of producing and storing energy in a highly efficient manner. Titanium dioxide (TiO2) has recently emerged as a promising choice in this field due to its non-toxicity, low cost, and eco-friendliness, in addition to its porosity, large surface area, good mechanical strength, and remarkable transport properties. Here, we present titanium dioxide nanoplates/polyvinylidene fluoride (TiO2/PVDF) membranes prepared by a straightforward hydrothermal strategy and vacuum filtration process. The as-synthesized TiO2/PVDF membrane was applied for energy storage applications. The fabricated TiO2/PVDF membrane served as the negative electrode for supercapacitors (SCs). The electrochemical properties of a TiO2/PVDF membrane were explored in an aqueous 6 M KOH electrolyte that exhibited good energy storage performance. Precisely, the TiO2/PVDF membrane delivered a high specific capacitance of 283.74 F/g at 1 A/g and maintained capacitance retention of 91% after 8000 cycles. Thanks to the synergistic effect of TiO2 and PVDF, the TiO2/PVDF membrane provided superior electrochemical performance as an electrode for a supercapacitor. These superior properties will likely be used in next-generation energy storage technologies.
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Affiliation(s)
- Muhammad Saleem
- Department of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Munirah D. Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Fahim Ahmed
- Department of Physics, Division of Science and Technology, University of Education, Lahore 54000, Pakistan
| | - ElSayed Din
- Faculty of Engineering and Technology, Future University in Egypt, New Cairo 11835, Egypt
| | - Waqas Ul Arifeen
- School of Mechanical Engineering, Yeungnam University, Gyeongsan-si 38541, Gyeongsangbuk-do, Republic of Korea
- Correspondence: (W.U.A.); (S.A.)
| | - Shafaqat Ali
- Department of Environmental Sciences, Government College University, Faisalabad 38000, Pakistan
- Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan
- Correspondence: (W.U.A.); (S.A.)
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11
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Multi-Functional Materials Based on Cu-Doped TiO2 Ceramic Fibers with Enhanced Pseudocapacitive Performances and Their Dielectric Characteristics. Polymers (Basel) 2022; 14:polym14214739. [DOI: 10.3390/polym14214739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/09/2022] Open
Abstract
In this work, pure TiO2 and Cu (0.5, 1, 2%)-doped TiO2 composites prepared by electrospinning technique followed by calcination at 900 °C, and having high pseudocapacitive and dielectric characteristics were reported. These nanocomposites were characterized by scanning electron microscopy, X-ray diffraction, and dynamic water sorption vapor measurements. The structural characterization of these nanostructures highlighted good crystallinity including only the rutile phase. The electrochemical characteristics were investigated by cyclic voltammetry and galvanostatic charge–discharge measurements, which were performed in a KOH electrolyte solution. Among the Cu-doped TiO2 nanostructures that were prepared, the one containing 0.5% Cu exhibited superior electrochemical properties, including high specific gravimetric capacitance of 1183 F·g−1, specific capacitance of 664 F·g−1, energy density of 45.20 Wh·kg−1, high power density of 723.14 W·kg−1, and capacitance retention of about 94% after 100 cycles. The dielectric investigation shows good dielectric properties for all materials, where the dielectric constant and the dielectric loss decreased with the frequency increase. Thus, all the interconnected studies proved that these new materials show manifold ability and real applicative potential as pseudocapacitors and high-performance dielectrics. Future work and perspectives are anticipated for characterizing electrochemical and dielectric properties for materials including larger amounts of Cu dopant.
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12
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Grebel H, Chowdhury T. Optically Controlled TiO 2-Embedded Supercapacitors: The Effects of Colloidal Size, Light Wavelength, and Intensity on the Cells' Performance. NANOMATERIALS 2022; 12:nano12111835. [PMID: 35683691 PMCID: PMC9182063 DOI: 10.3390/nano12111835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 05/25/2022] [Accepted: 05/25/2022] [Indexed: 02/04/2023]
Abstract
Optically controlled supercapacitors (S-C) could be of interest to the sensor community, as well as set the stage for novel optoelectronic charging devices. Here, structures constructed of two parallel transparent current collectors (indium-tin-oxide, ITO films on glass substrates) were considered. Active-carbon (A-C) films were used as electrodes. Two sets of electrodes were used: as-is electrodes that were used as the reference and electrodes that were embedded with submicron- or micron-sized titanium oxide (TiO2) colloids. While immersed in a 1 M Na2SO4, the electrodes exhibited minimal thermal effects (<3 °C) throughout the course of experiments). The optically induced capacitance increase for TiO2-embedded S-C was large of the order of 30%, whereas S-C without the TiO2 colloids exhibited minimal optically related effects (<3%). Spectrally, the blue spectral band had a relatively larger impact on the light-induced effects. A lingering polarization effect that increased the cell capacitance in the dark after prolonged light exposure is noted; that effect occurred without an indication of a chemical reaction.
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Moradeeya PG, Sharma A, Kumar MA, Basha S. Titanium dioxide based nanocomposites - Current trends and emerging strategies for the photocatalytic degradation of ruinous environmental pollutants. ENVIRONMENTAL RESEARCH 2022; 204:112384. [PMID: 34785207 DOI: 10.1016/j.envres.2021.112384] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 11/07/2021] [Accepted: 11/10/2021] [Indexed: 06/13/2023]
Abstract
Many ruinous pollutants are omnipresent in the environment and among them; pesticides are xenobiotic and pose to be a bio-recalcitrance. Their detrimental ecological and environmental impacts attract attention of environmental excerpts and the surge of stringent regulations have endows the need of a technically feasible treatment. This critical review emphasizes about the occurrence, abundance and fate of structurally distinct pesticides in different environment. The practiced remedial strategies and in particular, the advanced oxidation processes (AOPs) those utilize the photo-catalytic properties of nano-composites for the degradation of pollutants are critically discussed. Photo-catalytic degradation utilizes many composite materials at nano-scale level, wherein synthesis of nano-composites with appropriate precursors and other adjoining functional moieties are of prime importance. Therefore, suitable starter materials along with the reaction conditions are prerequisite for effectively tailoring the nano-composites. The aforementioned aspects and their customized applications are critically discussed. The associated challenges, opportunities and process economics of degradation using photo-catalytic AOP techniques are highlighted and in addition, the review tries to explain how best the photo-degradation can be a stand-alone tool with a societal importance. Conclusively, the future prospects for undertaking new researches in photo-catalytic breakdown of pollutants that can be judiciously sustainable.
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Affiliation(s)
- Pareshkumar G Moradeeya
- Hyderabad Zonal Laboratory, CSIR-National Environmental Engineering Research Institute, IICT Campus, Tarnaka, Hyderabad, 500 007, Telangana, India; Department of Environmental Science & Engineering, Marwadi Education Foundation, Rajkot, 360 003, Gujarat, India
| | - Archana Sharma
- Department of Environmental Science & Engineering, Marwadi Education Foundation, Rajkot, 360 003, Gujarat, India
| | - Madhava Anil Kumar
- Analytical and Environmental Science Division & Centralized Instrument Facility, CSIR-Central Salt & Marine Chemicals Research Institute, Bhavnagar, 364 002, Gujarat, India
| | - Shaik Basha
- Hyderabad Zonal Laboratory, CSIR-National Environmental Engineering Research Institute, IICT Campus, Tarnaka, Hyderabad, 500 007, Telangana, India.
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14
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Ahmed ATA, Bathula C, Soni R, Kim HS, Im H, Lee SW, Kim WK, Gedi S, Kadam AN. Nanostructurally engineered TiO 2 embedded Mentha aquatica biowaste derived carbon for supercapacitor applications. CHEMOSPHERE 2022; 289:133197. [PMID: 34890623 DOI: 10.1016/j.chemosphere.2021.133197] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 11/24/2021] [Accepted: 12/04/2021] [Indexed: 06/13/2023]
Abstract
The invention of cost-effective, clean, and eco-friendly energy storage technology has been capturing a lot of worldwide interest. Herein, biogenically synthesized TiO2 nanoparticles (NPs) were ultrasonically coupled with biomass-derived activated carbon (BAC) to obtain composite (denoted as TiO2@BAC). With the inspiration of nature, Mentha Aquatica leaves extract was employed for biogenic preparation of TiO2 NPs, and residual solid waste (SW) after extract was subsequently utilized for BAC. It is noteworthy that, this unique intensive method does not require any harmful or toxic chemicals and solvents, and no secondary waste is generated. TEM analysis of TiO2@BAC revealed spherical morphology of TiO2 NPs (average size ∼ 18 nm) that were accumulated on nanosheets. Raman, XRD, and XPS manifested the successful construction of TiO2@BAC. The electrochemical performance of the as-synthesized BAC, TiO2 NPs, and TiO2@BAC electrodes was tested towards supercapacitor applications. Notably, the TiO2@BAC electrode exhibited capacitance of 149 F/g at a current density of 1 A/g, which is approximately twice than that of the bare TiO2 electrode (76 F/g) along with excellent capacitance restoration of ∼99%. The TiO2@BAC electrode further revealed outstanding cyclic stability, exhibiting capacitance retention of ∼90% (at 5 A/g) after 10,000 charge/discharge cycles. Furthermore, the TiO2@BAC electrode delivered optimal specific energy density (6.96 Wh/kg) and large power density (2.07 kW/kg at 10 A/g). Moreover, the TiO2@BAC delivers an excellent restoration and retention performances of ∼100 and ∼95% (after 10,000 cycles) at 1 A/g with ∼98% coulombic efficiency in symmetric configuration (maximum cell voltage of 1.2 V).
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Affiliation(s)
- Abu Talha Aqueel Ahmed
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Chinna Bathula
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Ritesh Soni
- Department of Chemical Engineering, Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil, Ulsan, 44919, Republic of Korea
| | - Hyun-Seok Kim
- Division of Electronics and Electrical Engineering, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Hyunsik Im
- Division of Physics and Semiconductor Science, Dongguk University-Seoul, Seoul, 04620, Republic of Korea
| | - Sang-Wha Lee
- Department of Chemical and Biological Engineering, Gachon Unversity, Gyeonggi-do, 13120, Republic of Korea
| | - Woo Kyoung Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea
| | - Sreedevi Gedi
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Republic of Korea.
| | - Abhijit N Kadam
- Department of Chemical and Biological Engineering, Gachon Unversity, Gyeonggi-do, 13120, Republic of Korea.
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Pant B, Prasad Ojha G, Acharya J, Park M. Ag3PO4-TiO2-Carbon nanofiber Composite: An efficient Visible-light photocatalyst obtained from electrospinning and hydrothermal methods. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119400] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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16
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Xu J, Meng Z, Hao Z, Sun X, Nan H, Liu H, Wang Y, Shi W, Tian H, Hu X. Oxygen-vacancy abundant alpha bismuth oxide with enhanced cycle stability for high-energy hybrid supercapacitor electrodes. J Colloid Interface Sci 2021; 609:878-889. [PMID: 34836655 DOI: 10.1016/j.jcis.2021.11.081] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2021] [Revised: 11/10/2021] [Accepted: 11/15/2021] [Indexed: 10/19/2022]
Abstract
Bi2O3 is an outstanding electrode material due to its high theoretical specific capacity. Hence, the synthesis of δ-Bi2O3 materials with high oxygen-vacancy contents could improve their electrochemical performances but causes easy conversion to α-Bi2O3 with low oxygen-vacancy contents, leading to poor cycling stability and limited practical applications. To overcome these problems, an effective strategy for constructing high oxygen vacancies α-Bi2O3 on activated carbon fiber paper (ACFP) is developed in this study. To this end, ACFP/Bi(OH)3 is first synthesized by the solvothermal method and then converted to ACFP/α-Bi2O3 by in situ electrochemical activation. The proposed innovative electrochemical method quickly and easily introduces oxygen vacancies while preserving the three-dimensional structure, thereby promoting the charge transfer and ions diffusion in ACFP/α-Bi2O3. Consequently, the specific capacity of ACFP/α-Bi2O3 reaches 906C g-1 at 1 A g-1, and the capacity retention remains above 70% after 3000 cycles, a value higher than that of δ-Bi2O3 (45%). Furthermore, the hybrid supercapacitor device assembled by ACFP/α-Bi2O3 delivers a maximum energy density of 114.9 Wh kg-1 at 900 W kg-1 and outstanding cycle stability with 73.56 % retention after 5500 cycles. In sum, the proposed ACFP/α-Bi2O3 with high performance and good stability looks promising for use as bismuth-based anode materials in supercapacitors and aqueous batteries.
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Affiliation(s)
- Jian Xu
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Zeshuo Meng
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Zeyu Hao
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Xucong Sun
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Haoshan Nan
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Hongxu Liu
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Yanan Wang
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Wei Shi
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China
| | - Hongwei Tian
- Key Laboratory of Automobile Materials of MOE and School of Materials Science and Engineering, Jilin University, Changchun 130012, China.
| | - Xiaoying Hu
- College of Science and Laboratory of Materials Design and Quantum Simulation, Changchun University, Changchun 130022, China.
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A Review of Supercapacitors: Materials Design, Modification, and Applications. ENERGIES 2021. [DOI: 10.3390/en14227779] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Supercapacitors (SCs) have received much interest due to their enhanced electrochemical performance, superior cycling life, excellent specific power, and fast charging–discharging rate. The energy density of SCs is comparable to batteries; however, their power density and cyclability are higher by several orders of magnitude relative to batteries, making them a flexible and compromising energy storage alternative, provided a proper design and efficient materials are used. This review emphasizes various types of SCs, such as electrochemical double-layer capacitors, hybrid supercapacitors, and pseudo-supercapacitors. Furthermore, various synthesis strategies, including sol-gel, electro-polymerization, hydrothermal, co-precipitation, chemical vapor deposition, direct coating, vacuum filtration, de-alloying, microwave auxiliary, in situ polymerization, electro-spinning, silar, carbonization, dipping, and drying methods, are discussed. Furthermore, various functionalizations of SC electrode materials are summarized. In addition to their potential applications, brief insights into the recent advances and associated problems are provided, along with conclusions. This review is a noteworthy addition because of its simplicity and conciseness with regard to SCs, which can be helpful for researchers who are not directly involved in electrochemical energy storage.
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Synthesis and Characterization of Activated Carbon Co-Mixed Electrospun Titanium Oxide Nanofibers as Flow Electrode in Capacitive Deionization. MATERIALS 2021; 14:ma14226891. [PMID: 34832299 PMCID: PMC8625946 DOI: 10.3390/ma14226891] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/22/2022]
Abstract
Flow capacitive deionization is a water desalination technique that uses liquid carbon-based electrodes to recover fresh water from brackish or seawater. This is a potential second-generation water desalination process, however it is limited by parameters such as feed electrode conductivity, interfacial resistance, viscosity, and so on. In this study, titanium oxide nanofibers (TiO2NF) were manufactured using an electrospinning process and then blended with commercial activated carbon (AC) to create a well distributed flow electrode in this study. Field emission scanning electron microscope (FESEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray (EDX) were used to characterize the morphology, crystal structure, and chemical moieties of the as-synthesized composites. Notably, the flow electrode containing 1 wt.% TiO2NF (ACTiO2NF 1 wt.%) had the highest capacitance and the best salt removal rate (0.033 mg/min·cm2) of all the composites. The improvement in cell performance at this ratio indicates that the nanofibers are uniformly distributed over the electrode’s surface, preventing electrode passivation, and nanofiber agglomeration, which could impede ion flow to the electrode’s pores. This research suggests that the physical mixture could be used as a flow electrode in capacitive deionization.
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19
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Green Synthesis of Metal and Metal Oxide Nanoparticles Using Different Plants’ Parts for Antimicrobial Activity and Anticancer Activity: A Review Article. COATINGS 2021. [DOI: 10.3390/coatings11111374] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nanotechnology emerged as a scientific innovation in the 21st century. Metallic nanoparticles (metal or metal oxide nanoparticles) have attained remarkable popularity due to their interesting biological, physical, chemical, magnetic, and optical properties. Metal-based nanoparticles can be prepared by utilizing different biological, physical, and chemical methods. The biological method is preferred as it provides a green, simple, facile, ecofriendly, rapid, and cost-effective route for the green synthesis of nanoparticles. Plants have complex phytochemical constituents such as carbohydrates, amino acids, phenolics, flavonoids, terpenoids, and proteins, which can behave as reducing and stabilizing agents. However, the mechanism of green synthesis by using plants is still highly debatable. In this report, we summarized basic principles or mechanisms of green synthesis especially for metal or metal oxide (i.e., ZnO, Au, Ag, and TiO2, Fe, Fe2O3, Cu, CuO, Co) nanoparticles. Finally, we explored the medical applications of plant-based nanoparticles in terms of antibacterial, antifungal, and anticancer activity.
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20
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Guo Y, Wang X, Shen Y, Dong K, Shen L, Alzalab AAA. Research progress, models and simulation of electrospinning technology: a review. JOURNAL OF MATERIALS SCIENCE 2021; 57:58-104. [PMID: 34658418 PMCID: PMC8513391 DOI: 10.1007/s10853-021-06575-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 09/29/2021] [Indexed: 05/09/2023]
Abstract
In recent years, nanomaterials have aroused extensive research interest in the world's material science community. Electrospinning has the advantages of wide range of available raw materials, simple process, small fiber diameter and high porosity. Electrospinning as a nanomaterial preparation technology with obvious advantages has been studied, such as its influencing parameters, physical models and computer simulation. In this review, the influencing parameters, simulation and models of electrospinning technology are summarized. In addition, the progresses in applications of the technology in biomedicine, energy and catalysis are reported. This technology has many applications in many fields, such as electrospun polymers in various aspects of biomedical engineering. The latest achievements in recent years are summarized, and the existing problems and development trends are analyzed and discussed.
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Affiliation(s)
- Yajin Guo
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Xinyu Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528200 People’s Republic of China
| | - Ying Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Kuo Dong
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Linyi Shen
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
| | - Asmaa Ahmed Abdullah Alzalab
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
- Biomedical Materials and Engineering Research Center of Hubei Province, Wuhan University of Technology, Wuhan, 430070 People’s Republic of China
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21
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Wu H, Zhang X, Zhang H, Liu C, Huang F, Li S. Structure-dependent electrochemical properties of cobalt (II) carbonate hydroxide nanocrystals in supercapacitors. J Colloid Interface Sci 2021; 607:1633-1640. [PMID: 34592550 DOI: 10.1016/j.jcis.2021.09.059] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 09/09/2021] [Accepted: 09/11/2021] [Indexed: 12/27/2022]
Abstract
In this work, we report the structure-dependent electrochemical performance of cobalt carbonate hydroxide (Co2(OH)2CO3) nanocrystals by experimental investigation and theoretical simulation. Different Co2(OH)2CO3 nanostructures including two-dimensional (2D) nanosheets (NSs) and one-dimensional (1D) nanowires (NWs), were synthesized on self-supported carbon cloth substrates by a facile hydrothermal method. Compared to 1D NWs, 2D Co2(OH)2CO3 NSs provided a short ion transfer path, and low electron transfer resistance during the electrochemical reaction. At the current density of 2 mA cm-2, 2D Co2(OH)2CO3 NSs exhibited a higher area capacitance of 2.15F cm-2 and better cycling performance (96.2% retention after 10,000 cycles) than that of 1D NWs (1.15F cm-2 and 90.1% retention). First-principles density functional theory (DFT) calculations revealed that the band gap of the (120) facet in 2D NSs was 0.2 eV, far less than of the (200) facet in 1D NWs (1.04 eV). Electrochemical impedance spectroscopy (EIS) measurements further indicated that the electron transfer and reaction kinetics were more efficient in 2D NSs. This work can provide an important insight in understanding the mechanism of electrochemical energy storage.
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Affiliation(s)
- Haoyang Wu
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Xiaoqing Zhang
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Hui Zhang
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China.
| | - Chongjing Liu
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Fangzhi Huang
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China
| | - Shikuo Li
- AnHui Province Key Laboratory of Chemistry for Inorganic/Organic Hybrid Functionalized Materials, Key Laboratory of Structure and Functional Regulation of Hybrid Materials (Anhui University) Ministry of Education, School of Chemistry and Chemical Engineering, Institute of Physical Science and Information Technology, Anhui University, Hefei 230601, PR China.
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22
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Ultrahigh-performance titanium dioxide-based supercapacitors using sodium polyacrylate-derived carbon dots as simultaneous and synergistic electrode/electrolyte additives. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138805] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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23
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Guo L, Wan K, Liu B, Wang Y, Wei G. Recent advance in the fabrication of carbon nanofiber-based composite materials for wearable devices. NANOTECHNOLOGY 2021; 32:442001. [PMID: 34325413 DOI: 10.1088/1361-6528/ac18d5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Accepted: 07/26/2021] [Indexed: 06/13/2023]
Abstract
Carbon nanofibers (CNFs) exhibit the advantages of high mechanical strength, good conductivity, easy production, and low cost, which have shown wide applications in the fields of materials science, nanotechnology, biomedicine, tissue engineering, sensors, wearable electronics, and other aspects. To promote the applications of CNF-based nanomaterials in wearable devices, the flexibility, electronic conductivity, thickness, weight, and bio-safety of CNF-based films/membranes are crucial. In this review, we present recent advances in the fabrication of CNF-based composite nanomaterials for flexible wearable devices. For this aim, firstly we introduce the synthesis and functionalization of CNFs, which promote the optimization of physical, chemical, and biological properties of CNFs. Then, the fabrication of two-dimensional and three-dimensional CNF-based materials are demonstrated. In addition, enhanced electric, mechanical, optical, magnetic, and biological properties of CNFs through the hybridization with other functional nanomaterials by synergistic effects are presented and discussed. Finally, wearable applications of CNF-based materials for flexible batteries, supercapacitors, strain/piezoresistive sensors, bio-signal detectors, and electromagnetic interference shielding devices are introduced and discussed in detail. We believe that this work will be beneficial for readers and researchers to understand both structural and functional tailoring of CNFs, and to design and fabricate novel CNF-based flexible and wearable devices for advanced applications.
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Affiliation(s)
- Lei Guo
- Institute of Biomedical Engineering, College of Life Science, Qingdao University, Qingdao 266071, People's Republic of China
| | - Keming Wan
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, People's Republic of China
| | - Bin Liu
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, People's Republic of China
| | - Yan Wang
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, People's Republic of China
| | - Gang Wei
- College of Chemistry and Chemical Engineering, Qingdao University, Qingdao 266071, People's Republic of China
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24
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Saliu O, Mamo M, Ndungu P, Ramontja J. The making of a high performance supercapacitor active at negative potential using sulphonic acid activated starch-gelatin-TiO2 nano-hybrids. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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25
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Koul B, Poonia AK, Yadav D, Jin JO. Microbe-Mediated Biosynthesis of Nanoparticles: Applications and Future Prospects. Biomolecules 2021; 11:886. [PMID: 34203733 PMCID: PMC8246319 DOI: 10.3390/biom11060886] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 06/03/2021] [Accepted: 06/09/2021] [Indexed: 02/06/2023] Open
Abstract
Nanotechnology is the science of nano-sized particles/structures (~100 nm) having a high surface-to-volume ratio that can modulate the physical, chemical and biological properties of the chemical compositions. In last few decades, nanoscience has attracted the attention of the scientific community worldwide due to its potential uses in the pharmacy, medical diagnostics and disease treatment, energy, electronics, agriculture, chemical and space industries. The properties of nanoparticles (NPs) are size and shape dependent. These characteristic features of nanoparticles can be explored for various other applications such as computer transistors, chemical sensors, electrometers, memory schemes, reusable catalysts, biosensing, antimicrobial activity, nanocomposites, medical imaging, tumor detection and drug delivery. Therefore, synthesizing nanoparticles of desired size, structure, monodispersity and morphology is crucial for the aforementioned applications. Recent advancements in nanotechnology aim at the synthesis of nanoparticles/materials using reliable, innoxious and novel ecofriendly techniques. In contrast to the traditional methods, the biosynthesis of nanoparticles of a desired nature and structure using the microbial machinery is not only quicker and safer but more environmentally friendly. Various microbes, including bacteria, actinobacteria, fungi, yeast, microalgae and viruses, have recently been explored for the synthesis of metal, metal oxide and other important NPs through intracellular and extracellular processes. Some bacteria and microalgae possess specific potential to fabricate distinctive nanomaterials such as exopolysaccharides, nanocellulose, nanoplates and nanowires. Moreover, their ability to synthesize nanoparticles can be enhanced using genetic engineering approaches. Thus, the use of microorganisms for synthesis of nanoparticles is unique and has a promising future. The present review provides explicit information on different strategies for the synthesis of nanoparticles using microbial cells; their applications in bioremediation, agriculture, medicine and diagnostics; and their future prospects.
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Affiliation(s)
- Bhupendra Koul
- School of Bioengineering and Biosciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Anil Kumar Poonia
- Centre for Plant Biotechnology, CCSHAU, Hisar 125004, Haryana, India;
| | - Dhananjay Yadav
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Korea
| | - Jun-O Jin
- Department of Medical Biotechnology, Yeungnam University, Gyeongsan 38541, Korea
- Research Institute of Cell Culture, Yeungnam University, Gyeongsan 38541, Korea
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Irshad MA, Nawaz R, Rehman MZU, Adrees M, Rizwan M, Ali S, Ahmad S, Tasleem S. Synthesis, characterization and advanced sustainable applications of titanium dioxide nanoparticles: A review. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 212:111978. [PMID: 33561774 DOI: 10.1016/j.ecoenv.2021.111978] [Citation(s) in RCA: 89] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 01/17/2021] [Accepted: 01/21/2021] [Indexed: 05/20/2023]
Abstract
Nanotechnology is capturing great interest worldwide due to their stirring applications in various fields. Among nanoparticles (NPs), titanium dioxide (TiO2) NPs have been widely used in daily life and can be synthesized through various physical, chemical, and green methods. Green synthesis is a non-toxic, cost-effective, and eco-friendly route for the synthesis of NPs. Plenty of work has been reported on the green, chemical, physical and biological synthesis of TiO2 NPs and these NPs can be characterized through high tech. instruments. In the present review, dense data have been presented on the comparative synthesis of TiO2 NPs with different characteristics and their wide range of applications. Among the TiO2 NPs synthesis techniques, the green methods have been proven to be efficient than chemical synthesis methods because of the less use of precursors, time-effectiveness, and energy-efficiency during the green synthesis procedures. Moreover, this review describes the types of plants (shrubs, herbs and trees), microorganisms (bacteria, fungi and algae), biological derivatives (proteins, peptides, and starches) employed for the synthesis of TiO2 NPs. The TiO2 NPs can be effectively used for the treatment of polluted water and positively affected the plant physiology especially under abiotic stresses but the response varied with types, size, shapes, doses, duration of exposure, metal species along with other factors. This review also highlights the regulating features and future standpoints for the measurable enrichment in TiO2 NPs product and perspectives of TiO2 NPs reliable application.
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Affiliation(s)
- Muhammad Atif Irshad
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad 38000, Pakistan; Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan
| | - Rab Nawaz
- Department of Environmental Sciences, The University of Lahore, Lahore 54590, Pakistan
| | - Muhammad Zia Ur Rehman
- Institute of Soil and Environmental Sciences, University of Agriculture, Faisalabad 38040, Pakistan
| | - Muhammad Adrees
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad 38000, Pakistan.
| | - Muhammad Rizwan
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad 38000, Pakistan.
| | - Shafaqat Ali
- Department of Environmental Sciences and Engineering, Government College University, Faisalabad 38000, Pakistan; Department of Biological Sciences and Technology, China Medical University, Taichung 40402, Taiwan.
| | - Sajjad Ahmad
- Department of Environmental Sciences, COMSATS University Islamabad, Vehari-Campus, 61100 Vehari, Pakistan
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Li S, Zhang L, Zhang L, Zhang J, Zhou H, Chen X, Tang T. The in situ construction of three-dimensional core–shell-structured TiO 2@PPy/rGO nanocomposites for improved supercapacitor electrode performance. NEW J CHEM 2021. [DOI: 10.1039/d0nj05328g] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Three-dimensional core–shell-structured TiO2@PPy/rGO nanocomposites can be used as ideal electrodes with a longer discharge time and higher capacitance.
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Affiliation(s)
- Shiyun Li
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Ling Zhang
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Luxi Zhang
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Jiaoxia Zhang
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Haijun Zhou
- School of Materials Science and Engineering
- Jiangsu University of Science and Technology
- Zhenjiang 212003
- China
| | - Xuecheng Chen
- Department of Nanomaterials Physicochemistry
- Faculty of Chemical Technology and Engineering
- West Pomeranian University of Technology
- 71-065 Szczecin
- Poland
| | - Tao Tang
- State Key Laboratory of Polymer Physics and Chemistry
- Changchun Institute of Applied Chemistry (CIAC)
- Chinese Academy of Sciences
- Changchun 130022
- China
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Ramesh Reddy N, Mamatha Kumari M, Shankar MV, Raghava Reddy K, Woo Joo S, Aminabhavi TM. Photocatalytic hydrogen production from dye contaminated water and electrochemical supercapacitors using carbon nanohorns and TiO 2 nanoflower heterogeneous catalysts. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2021; 277:111433. [PMID: 33070019 DOI: 10.1016/j.jenvman.2020.111433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/20/2020] [Accepted: 09/24/2020] [Indexed: 06/11/2023]
Abstract
In this research, efficient and novel catalysts based on hierarchical carbon nanohorns-titanium nanoflowers have been prepared by one-pot solvothermal process. Hydrogen generation from dye-contaminated water and dye degradation along with electrochemical supercapacitance performance have been investigated using the synthesized hierarchical catalyst to produce 4500 μmol g-1 h-1 of hydrogen from the photocatalytically generated aqueous methylene blue and methyl orange dyes, which were degraded up to 90% under natural solar light irradiation. These results offer a new path to generate hydrogen from the aqueous dyes. The catalysts electrode showed 164.6 F g-1 supercapacitance at 5 mV s-1 scan rate, which is nearly 1.3 and 1.65-times higher than that of pristine titanium nanoflower and carbon nanohorns electrodes, respectively. Such superior results were achieved due to good crystallinity, improved optical absorption strength, strong chemical composition between the two components, and hierarchical morphology as demonstrated from XRD, UV-DRS, TEM, XPS, and Raman spectral characterizations.
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Affiliation(s)
- N Ramesh Reddy
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea
| | - M Mamatha Kumari
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - M V Shankar
- Nanocatalysis and Solar Fuels Research Lab, Department of Materials Science & Nanotechnology, Yogi Vemana University, Kadapa, 516 005, Andhra Pradesh, India
| | - Kakarla Raghava Reddy
- School of Chemical and Biomolecular Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.
| | - Sang Woo Joo
- School of Mechanical Engineering, Yeungnam University, Gyeongsan, 38541, Republic of Korea.
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29
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Zhong Y, Cao X, Liu Y, Cui L, Liu J. Nickel cobalt manganese ternary carbonate hydroxide nanoflakes branched on cobalt carbonate hydroxide nanowire arrays as novel electrode material for supercapacitors with outstanding performance. J Colloid Interface Sci 2021; 581:11-20. [DOI: 10.1016/j.jcis.2020.07.124] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 07/16/2020] [Accepted: 07/24/2020] [Indexed: 10/23/2022]
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Chen K, Liu J, Bian H, Wang W, Wang F, Shao Z. Dexterous and friendly preparation of N/P co-doping hierarchical porous carbon nanofibers via electrospun chitosan for high performance supercapacitors. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114473] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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Titanium niobate (Ti 2Nb 10O 29) anchored on nitrogen-doped carbon foams as flexible and self-supported anode for high-performance lithium ion batteries. J Colloid Interface Sci 2020; 587:622-632. [PMID: 33223244 DOI: 10.1016/j.jcis.2020.11.019] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/04/2020] [Accepted: 11/05/2020] [Indexed: 12/13/2022]
Abstract
Assembling active materials on flexible conductive matrixes for fabricating high-rate, self-supported and durable anodes is essential for the development of high-power flexible lithium-ion batteries. In this study, we report an efficient combinational strategy for producing hybrid composites (TNO@MCF) of Ti2Nb10O29 (TNO) anchored on melamine carbon foam (MCF) via a hydrothermal method. The N-doped MCF not only showed good electronic conductivity and flexibility, but also improved the ion transport performance of the composites. The TNO@MCF electrode exhibited remarkably high rate capacities (327 mA h g-1 at 1 C, and 205 mA h g-1 at 40 C) and excellent cycling stability with a high capacity retention of 81.4% after 1000 cycles at 10 C. After 100 compression-rebound cycles, the TNO@MCF electrode showed a reversible capacity of 315 mA h g-1 at 1 C and exhibited a capacity retention of 72.3% for 1000 cycles at 10 C. This compressible structure design could provide guidelines for manufacture of other flexible electrodes for energy storage devices.
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Pant B, Ojha GP, Kuk YS, Kwon OH, Park YW, Park M. Synthesis and Characterization of ZnO-TiO 2/Carbon Fiber Composite with Enhanced Photocatalytic Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E1960. [PMID: 33019690 PMCID: PMC7600166 DOI: 10.3390/nano10101960] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/05/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022]
Abstract
Herein, we prepared a novel photocatalytic ZnO-TiO2 loaded carbon nanofibers composites (ZnO-TiO2-CNFs) via electrospinning technique followed by a hydrothermal process. At first, the electrospun TiO2 NP-embedded carbon nanofibers (TiO2-CNFs) were achieved using electrospinning and a carbonization process. Next, the ZnO particles were grown into the TiO2-CNFs via hydrothermal treatment. The morphology, structure, and chemical compositions were studied using state-of-the-art techniques. The photocatalytic performance of the ZnO-TiO2-CNFs composite was studied using degrading methylene blue (MB) under UV-light irradiation for three successive cycles. It was noticed that the ZnO-TiO2-CNFs nanocomposite showed better MB removal properties than that of other formulations, which might be due to the synergistic effects of carbon nanofibers and utilized metal oxides (ZnO and TiO2). The adsorption characteristic of carbon fibers and matched band potentials of ZnO and TiO2 combinedly help to boost the overall photocatalytic performance of the ZnO-TiO2-CNFs composite. The obtained results from this study indicated that it can be an economical and environmentally friendly photocatalyst.
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Affiliation(s)
- Bishweshwar Pant
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Jeollabuk-do 55338, Korea; (B.P.); (G.P.O.)
| | - Gunendra Prasad Ojha
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Jeollabuk-do 55338, Korea; (B.P.); (G.P.O.)
| | - Yun-Su Kuk
- Korea Institute of Carbon Convergence Technology (KCTECH), Jeonju 54853, Korea;
| | - Oh Hoon Kwon
- Research and Development Division, Korea Institute of Convergence Textile, Iksan 54588, Korea; (O.H.K.); (Y.W.P.)
| | - Yong Wan Park
- Research and Development Division, Korea Institute of Convergence Textile, Iksan 54588, Korea; (O.H.K.); (Y.W.P.)
| | - Mira Park
- Carbon Composite Energy Nanomaterials Research Center, Woosuk University, Wanju-Gun, Jeollabuk-do 55338, Korea; (B.P.); (G.P.O.)
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33
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Han X, Jiang T, Chen X, Jiang D, Xie K, Jiang Y, Wang Y. Electrolyte additive induced fast-charge/slow-discharge process: Potassium ferricyanide and potassium persulfate for CoO-based supercapacitors. J Colloid Interface Sci 2020; 576:505-513. [PMID: 32512403 DOI: 10.1016/j.jcis.2020.05.059] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 05/14/2020] [Accepted: 05/15/2020] [Indexed: 01/05/2023]
Abstract
The electrolyte additives of potassium ferricyanide and potassium persulfate can ensure that CoO-supercapacitors achieve a fast charge/slow discharge and long cycling stability. The redox couple of Fe(CN)63-/Fe(CN)64- can induce S2O82- to produce the sulfate radical ( [Formula: see text] ). Strong oxidizing species, including S2O82-, Fe(CN)63- and [Formula: see text] , can accelerate oxidation of the CoO electrode surface from Co2+ to Co3+ in the charge process. The additives can achieve a good synergistic effect on accelerating CoO oxidation during the charge process. In a three-electrode cell, a CoO electrode with electrolyte additives achieves a fast-charge and slow-discharge time of 939 s and 1699 s at a current density of 1 A g-1, respectively. The capacitance retention can be maintained at 84.5% after 10,000 cycles at a current density of 5 A g-1. As a supercapacitor, the device can achieve a fast-charge and slow-discharge time of 156 s and 191 s at a current density of 1 A g-1, respectively. The capacitance retention can be maintained at 85.5% after 10,000 cycles at a current density of 5 A g-1.
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Affiliation(s)
- Xuanxuan Han
- Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Tao Jiang
- Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China
| | - Xing Chen
- Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China; School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Demin Jiang
- Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China; School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Kun Xie
- School of Environmental and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, China
| | - Yinhua Jiang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, China
| | - Yuqiao Wang
- Institute of Advanced Materials, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China.
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Aslan S, Bal Altuntaş D, Koçak Ç, Kara Subaşat H. Electrochemical Evaluation of Titanium (IV) Oxide/Polyacrylonitrile Electrospun Discharged Battery Coals as Supercapacitor Electrodes. ELECTROANAL 2020. [DOI: 10.1002/elan.202060239] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Sema Aslan
- Department of Chemistry Faculty of Science Mugla Sitki Kocman University Muğla Turkey
| | - Derya Bal Altuntaş
- Department of Bioengineering Faculty of Engineering Recep Tayyip Erdogan University Rize Turkey
| | - Çağdaş Koçak
- Department of Physics Faculty of Science Mugla Sitki Kocman University Muğla Turkey
| | - Hülya Kara Subaşat
- Department of Energy Graduate School of Natural and Applied Sciences Mugla Sıtkı Kocman University 48170 Mugla Turkey
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Facile Formation of Anatase Nanoparticles on H-Titanate Nanotubes at Low Temperature for Efficient Visible Light-Driven Degradation of Organic Pollutants. Catalysts 2020. [DOI: 10.3390/catal10060695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Anatase nanoparticles (5–10 nm) generated on H-titanate nanotube surface (H-titanate/anatase) were prepared by an ingenious and simple method. H-titanate tubes were prepared by a hydrothermal reaction of Ti powder in concentrated NaOH solution and an ion exchange process with HNO3 solution. After that, at a relatively low drying temperature (100 °C), a small quantity of anatase nanoparticles were in-situ formed on the H-titanate tubes surface by a surface dehydration reaction. In-situ transformation can form a strong interface coupling between H-titanate and anatase, which is conducive to accelerating charge transfer and improving its photocatalytic activity. In addition, the smaller average crystal size, the large specific surface areas (BET), the nanotubed and layered structure and the synergistic effect of dual phases would be beneficial to improving the photocatalytic efficiency.
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36
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Pant B, Pant HR, Park M. Fe 1-xS Modified TiO 2 NPs Embedded Carbon Nanofiber Composite via Electrospinning: A Potential Electrode Material for Supercapacitors. Molecules 2020; 25:molecules25051075. [PMID: 32121021 PMCID: PMC7179207 DOI: 10.3390/molecules25051075] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 02/19/2020] [Accepted: 02/26/2020] [Indexed: 11/16/2022] Open
Abstract
Fe1-xS-TiO2 nanoparticles embedded carbon nanofibers (Fe1-xS-TiO2/CNFs) composite as a supercapacitor electrode material has been reported in the present work. The Fe1-xS-TiO2/CNFs composite was fabricated by electrospinning technique followed by carbonization under argon atmosphere and characterized by the state-of-art techniques. The electrochemical studies were carried out in a 2 M KOH electrolyte solution. The synthesized material showed a specific capacitance value of 138 F/g at the current density of 1 A/g. Further, the capacitance retention was about 83%. The obtained results indicate that the Fe1-xS-TiO2/CNFs composite can be recognized as electrode material in supercapacitor.
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Affiliation(s)
- Bishweshwar Pant
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University Medical School, Chonbuk 54907, Korea;
| | - Hem Raj Pant
- Department of Applied Sciences, Tribhuvan University, Kathmandu 44600, Nepal;
| | - Mira Park
- Department of Biomedical Sciences and Institute for Medical Science, Jeonbuk National University Medical School, Chonbuk 54907, Korea;
- Correspondence:
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Fabrication of Antibacterial Nanofibrous Membrane Infused with Essential Oil Extracted from Tea Tree for Packaging Applications. Polymers (Basel) 2020; 12:polym12010125. [PMID: 31948088 PMCID: PMC7022430 DOI: 10.3390/polym12010125] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 11/16/2022] Open
Abstract
Nanofibers made by electrospinning are being applied to an unlimited number of applications. In this paper, we propose the fabrication of antimicrobial functional nanofibers infused with essential oil for packaging applications that can extend the shelf-life of fruits. The morphology of nanofibers with different concentrations of essential oil was characterized by SEM and mechanical enhancement was confirmed via universal testing machine (UTM). The surface chemistry and crystalline of the nanofibers were investigated by FTIR and XRD, respectively. The CO2 reduction study was carried out using a hand-made experimental apparatus and nanofiber hydrophobicity, which can prevent moisture penetration from the outside, was evaluated by contact angle. Antimicrobial properties of the functional nanofibers were estimated by using Gram-negative/positive bacteria. The cytotoxicity of the functional nanofibers was studied using fibroblast cells. Furthermore, this study investigated how long the shelf-life of tomatoes was extended. The nanofibers could serve as a multifunctional packaging, as an emerging technology in agricultural products, and even contribute to a better quality of various distributed agricultural products.
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Zhang S, Liu G, Qiao W, Wang J, Ling L. Oxygen vacancies enhance the lithium ion intercalation pseudocapacitive properties of orthorhombic niobium pentoxide. J Colloid Interface Sci 2019; 562:193-203. [PMID: 31838355 DOI: 10.1016/j.jcis.2019.12.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/04/2019] [Accepted: 12/04/2019] [Indexed: 01/19/2023]
Abstract
While orthorhombic niobium pentoxide (T-Nb2O5) is one of the most promising energy storage material with rapid lithium ion (Li+) intercalation pseudocapacitive response, a key challenge remains the achievement of high-rate charge-transfer reaction when fabricated into thick electrodes. Herein, we report a facile method to create intrinsic defects in T-Nb2O5 through a hydrogen (H2) reduction, which is effective to overcome the limitations of electrochemical utilization and rate capability. Due to the high number of active sites introduced, the specific capacity of hydrogenated (H-) Nb2O5 with oxygen vacancies reaches 649 C g-1 at 0.5 A g-1, greatly exceeding that of T-Nb2O5 which is 580 C g-1. In addition, theformation of oxygen vacancies leads to increased donor density and enhanced electrical conductivity, which accelerates charge storage kinetics and enables excellent long-term cycling stability (86% retention after 2000 cycles). The analysis of electrochemical impedance spectroscopy (EIS) plots and the calculation of Li+ diffusion coefficients (DLi) further explains the high rate-performance of H-Nb2O5. When the electrode thickness increased to 150 μm, the H-Nb2O5 still delivers excellent electrochemical properties. Therefore, the introduction of oxygen vacancies provides a new method towards the improvement of the electrochemical properties of various transition metal oxides.
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Affiliation(s)
- Songmin Zhang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Guanglan Liu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Wenming Qiao
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jitong Wang
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
| | - Licheng Ling
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China.
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Construction of Polymer Electrolyte Based on Soybean Protein Isolate and Hydroxyethyl Cellulose for a Flexible Solid-State Supercapacitor. Polymers (Basel) 2019; 11:polym11111895. [PMID: 31744185 PMCID: PMC6918148 DOI: 10.3390/polym11111895] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 11/11/2019] [Accepted: 11/14/2019] [Indexed: 12/14/2022] Open
Abstract
Supercapacitors are a very active research topic. However, liquid electrolytes present several drawbacks on security and packaging. Herein, a gel polymer electrolyte was prepared based on crosslinked renewable and environmentally friendly soybean protein isolate (SPI) and hydroxyethyl cellulose (HEC) with 1.0 mol L−1 Li2SO4. Highly hydrophilic SPI and HEC guaranteed a high ionic conductivity of 8.40 × 10−3 S cm−1. The fabricated solid-state supercapacitor with prepared gel polymer electrolyte exhibited a good electrochemical performance, that is, a high single electrode gravimetric capacitance of 91.79 F g−1 and an energy density of 7.17 W h kg−1 at a current density of 5.0 A g−1. The fabricated supercapacitor exhibited a flexible performance under bending condition superior to liquid supercapacitor and similar electrochemical performance at various bending angles. In addition, it was proved by an almost 100% cycling retention and a coulombic efficiency over 5000 charge–discharge cycles. For comparison, supercapacitors assembled with commercial aqueous PP/PE separator, pure SPI membrane, and crosslinked SPI membrane were also characterized. The obtained gel polymer electrolyte based on crosslinked SPI and HEC may be useful for the design of advanced polymer electrolytes for energy devices.
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40
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Recent Advances in TiO2 Films Prepared by Sol-gel Methods for Photocatalytic Degradation of Organic Pollutants and Antibacterial Activities. COATINGS 2019. [DOI: 10.3390/coatings9100613] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Photocatalysis has recently emerged as an advanced, green, and eco-friendly process for the treatment of wastewater and air, and antimicrobial disinfection applications. In this context, TiO2 nanostructures have been shown to be the prominent photocatalyst candidates due to their low cost, non-toxicity, and ease of fabrication. This review highlights the investigation and development of TiO2 photocatalyst film by sol-gel method with special emphasis on the photodecolorization of synthetic dyes and antibacterial activities. Furthermore, various synthesis methods for the preparation of TiO2 films and their advantages, as well as limitations, are summarized. Finally, recent advances in TiO2 films by sol-gel method for dye degradation and antibacterial activities, challenges, and future perspective are discussed.
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