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Eddine Attar A, Chaker H, Djennas M, Ondarts M, Fourmentin S. Investigation of Doehlert matrix conception in novel intrinsically conducting polymers based on selenium nanoparticles for wastewater treatment: Synthesis, characterization, kinetic and chemometric study. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 319:124562. [PMID: 38823245 DOI: 10.1016/j.saa.2024.124562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/03/2024]
Abstract
The synthesis of robust intrinsically conducting polymers (ICPs) based on nanoparticles is becoming increasingly attractive to the research community due to the unique properties of these nanocomposites. Indeed, as organic semiconductors, ICPs combine both polymer and metal properties in a single structure. This study presents an innovative approach in which the Doehlert Matrix (DM) is applied to a novel ICP nanocomposite based on polyaniline (Pani) coupled with selenium (Se) loaded mesoporous titania (TiO2) for wastewater treatment by photocatalysis. It includes both the elaboration routes of ICP nanocomposites, characterization of materials by X-ray diffraction (XRD), BET analysis, thermogravimetric analysis (TGA), RAMAN spectroscopy and Fourier transform infrared spectroscopy (FTIR) and photodegradation of methylene blue (MB) as a representative of dye pollutant. In addition, the photocatalytic process has been optimized by a novel DM conception. The effect of the pH of the solution, the catalyst dosage and the initial pollutant concentration was investigated. The optimum conditions were found to be: initial MB concentration of 15 mg/L, the catalyst dosage of 69 mg and pH of 9.6 with an operating time of 75 min, with a coefficient of determination R2 equal to 0.9985. The removal efficiency of BM was close to 97 %. The study shows that the new ICP nanocomposites improve the photocatalytic efficiency compared to pure titania and/or pure Pani. In addition, as the ternary Pani-Se-TiO2 nanocomposite could be obtained from a low-cost synthesis, it is a very promising material for use in wastewater treatment.
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Affiliation(s)
- Alaa Eddine Attar
- Laboratoire de Catalyse et Synthèse en Chimie Organique BP 119, Université de Tlemcen, Tlemcen 13000, Algérie; Université Belhadj Bouchaib de Ain Temouchent, BP 284, 46000, Ain Temouchent, Algérie
| | - Hanane Chaker
- Laboratoire de Catalyse et Synthèse en Chimie Organique BP 119, Université de Tlemcen, Tlemcen 13000, Algérie; Université Belhadj Bouchaib de Ain Temouchent, BP 284, 46000, Ain Temouchent, Algérie.
| | - Mustapha Djennas
- Faculté des sciences économiques, BP 226, Université de Tlemcen, Tlemcen 13000, Algérie
| | - Michel Ondarts
- Université Savoie Mont Blanc, CNRS, Laboratoire des Procédés Énergétiques du Bâtiment, 73000 Chambéry, France
| | - Sophie Fourmentin
- Université Littoral Côte d'Opale, UR 4492, UCEIV, Unité de Chimie Environnementale et Interactions sur le Vivant, F-59140 Dunkerque, France
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Zhang L, Gregory SA, Malinowski KL, Atassi A, Freychet G, Losego MD. Vapor Phase Infiltration of Titanium Oxide into P3HT to Create Organic-Inorganic Hybrid Photocatalysts. ACS APPLIED MATERIALS & INTERFACES 2024; 16:33259-33269. [PMID: 38904295 PMCID: PMC11231981 DOI: 10.1021/acsami.3c16469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2023] [Revised: 05/09/2024] [Accepted: 06/11/2024] [Indexed: 06/22/2024]
Abstract
Herein, we report for the first time the use of vapor phase infiltration (VPI) to infuse conducting polymers with inorganic metal oxide clusters that together form a photocatalytic material. While vapor infiltration has previously been used to electrically dope conjugated polymers, this is the first time, to our knowledge, that the resultant hybrid material has been demonstrated to have photocatalytic properties. The system studied is poly(3-hexylthiophene-2,5-diyl) (P3HT) vapor infiltrated with TiCl4 and H2O to create P3HT-TiOx organic-inorganic hybrid photocatalytic materials. X-ray photoelectron spectroscopy analysis shows that P3HT-TiOx VPI films consist of a partially oxidized P3HT matrix, and the infiltrated titanium inorganic is in a 4+ oxidation state with mostly oxide coordination. Upon visible light illumination, these P3HT-TiOx hybrids degrade methylene blue dye molecules. The P3HT-TiOx hybrids are 4.6× more photocatalytically active than either the P3HT or TiO2 individually or when sequentially deposited (e.g., P3HT on TiO2). On a per surface area basis, these hybrid photocatalysts are comparable or better than other best in class polymer semiconductor photocatalysts. VPI of TiCl4 + H2O into P3HT makes a unique hybrid structure and idealized photocatalyst architecture by creating nanoscale TiOx clusters concentrated toward the surface achieving extremely high catalytic rates. The mechanism for this enhanced photocatalytic rate is understood using photoluminescence spectroscopy, which shows significant quenching of excitons in P3HT-TiOx as compared to neat P3HT, indicating that P3HT acts as a photosensitizer for the TiOx catalyst sites in the hybrid material. This work introduces a new approach to designing and synthesizing organic-inorganic hybrid photocatalytic materials, with expansive opportunities for further exploration and optimization.
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Affiliation(s)
- Li Zhang
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, United States
- Renewable Bioproducts Institute, Georgia Institute of Technology, 500 10th Street NW, Atlanta, Georgia 30332, United States
| | - Shawn A Gregory
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Kristina L Malinowski
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Amalie Atassi
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, United States
| | - Guillaume Freychet
- NSLS-II, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Mark D Losego
- School of Materials Science and Engineering, Georgia Institute of Technology, 771 Ferst Drive NW, Atlanta, Georgia 30332, United States
- Renewable Bioproducts Institute, Georgia Institute of Technology, 500 10th Street NW, Atlanta, Georgia 30332, United States
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3
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Suthar M, De AK, Indra A, Sinha I, Roy PK. Synthesis and characterization of titanium-substituted nanocrystalline Co 2-Y hexaferrite: magnetically retrievable photocatalyst for treatment of methyl orange contaminated wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:44457-44479. [PMID: 36692717 DOI: 10.1007/s11356-023-25432-8] [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: 10/20/2022] [Accepted: 01/16/2023] [Indexed: 06/17/2023]
Abstract
Rapid industrial growth causes considerable environmental havoc, adversely affecting human and aqueous life. It becomes a significant concern to deal with adequate wastewater treatment strategies by converging on water scarcity. This research work explored the synthesis of titanium-substituted Y-type barium hexaferrite (Co2-Y), having a general formula of Ba2Co2Fe12-xTixO22 (x = 0.0, 0.1, 0.2, 0.3, 0.4, and 0.5), using a facile nitrate-based sol-gel auto-combustion route and its suitability was investigated as a heterogeneous catalyst within the photo-Fenton-based degradation of methyl orange (MO), one of the significant pollutants generated from textile industries. Developing a thermochemically stable and magnetically separable heterogeneous catalyst for photocatalytic decomposition of nonbiodegradable organic dye from wastewater was also emphasized. The as-prepared nanocrystalline Co2-Y powders were analyzed using XRD, FTIR, DLS, UV-visible spectroscopy, SEM, VSM, and XPS. Furthermore, the photocatalytic degradation performance of pristine and titanium substituted Ba2Co2Fe11.6Ti0.4O22 ferrite, having the lowest bandgap value among all samples, was quantified and compared in terms of apparent rate constant (karc) value and turnover frequency values. The enriched photocatalytic performance was correlated with the existence of multi-valance states of transition metal cations and the availability of oxygen vacancy, confirmed by the surface chemistry using the XPS analysis. The modified (enhanced thermal and chemical stability) hexaferrite catalyst was magnetically separable and reusable without significant losses to its catalytic performance. This promising catalyst may be considered as a replacement for soft ferrite materials to catalyze the degradation of several other nonbiodegradable organic pollutants from wastewater in large-scale industries.
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Affiliation(s)
- Mukesh Suthar
- Department of Ceramic Engineering, IIT (BHU), Varanasi, 221005, UP, India
| | - Arup Kumar De
- Department of Chemistry, IIT (BHU), Varanasi, 221005, UP, India
| | - Arindam Indra
- Department of Chemistry, IIT (BHU), Varanasi, 221005, UP, India
| | - Indrajit Sinha
- Department of Chemistry, IIT (BHU), Varanasi, 221005, UP, India
| | - Pradip Kumar Roy
- Department of Ceramic Engineering, IIT (BHU), Varanasi, 221005, UP, India.
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A. M. Babakir B, Abd Ali LI, Ismail HK. Rapid removal of anionic organic dye from contaminated water using a poly(3-aminobenzoic acid/graphene oxide/cobalt ferrite) nanocomposite low-cost adsorbent via adsorption techniques. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Synthesis and Characterization of 2D-WS2 Incorporated Polyaniline Nanocomposites as Photo Catalyst for Methylene Blue Degradation. NANOMATERIALS 2022; 12:nano12122090. [PMID: 35745428 PMCID: PMC9254741 DOI: 10.3390/nano12122090] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/09/2022] [Accepted: 06/09/2022] [Indexed: 11/17/2022]
Abstract
2D-WS2 incorporated polyaniline nanocomposites (WS2-PANI) with varying WS2 loadings were synthesized by a facile in situ oxidative polymerization technique which effectively promoted photocatalytic waste-water remediation using methylene blue (MB) as the probe molecules. The physicochemical properties of WS2-PANI (1-5) nanocomposites were investigated using multifarious techniques such as FT-IR, XRD, BET surface area, TGA, FESEM, and HRTEM. An electron microscopy analysis that was performed using HRTEM analysis confirm the layered structure of WS2 with periodic planes (100) separated by 0.27 nm. The photocatalytic performance of the WS2-PANI (1-5) for MB degradation performed under UV photo irradiation clearly showed that 2 wt.% WS2-PANI outperformed other variants with 93% degradation MB within 90 min. Furthermore, the catalytic material was reusable for five cycles without a significant loss of the catalytic performance.
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6
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Regulating N content to anchor Fe in Fe-MOFs: Obtaining multiple active sites as efficient photocatalysts. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2021.10.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Ni–Al-layered double-hydroxide photocatalyst for the visible light-assisted photodegradation of organic dye pollutants. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02350-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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8
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Jin X, Tang T, Tao X, Huang L, Xu D. A novel dual-ligand Fe-based MOFs synthesized with dielectric barrier discharge (DBD) plasma as efficient photocatalysts. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117290] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Alharthy RD, Saleh A. A Novel Trace-Level Ammonia Gas Sensing Based on Flexible PAni-CoFe 2O 4 Nanocomposite Film at Room Temperature. Polymers (Basel) 2021; 13:3077. [PMID: 34577977 PMCID: PMC8473047 DOI: 10.3390/polym13183077] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 09/05/2021] [Accepted: 09/09/2021] [Indexed: 12/16/2022] Open
Abstract
In this study, we developed a new chemi-resistive, flexible and selective ammonia (NH3) gas sensor. The sensor was prepared by depositing thin film of polyaniline-cobalt ferrite (PAni-CoFe2O4) nanocomposite on flexible polyethylene terephthalate (PET) through an in situ chemical oxidative polymerization method. The prepared PAni-CoFe2O4 nanocomposite and flexible PET-PAni-CoFe2O4 sensor were evaluated for their thermal stability, surface morphology and materials composition. The response to NH3 gas of the developed sensor was examined thoroughly in the range of 1-50 ppm at room temperature. The sensor with 50 wt% CoFe2O4 NPs content showed an optimum selectivity to NH3 molecules, with a 118.3% response towards 50 ppm in 24.3 s response time. Furthermore, the sensor showed good reproducibility, ultra-low detection limit (25 ppb) and excellent flexibility. In addition, the relative humidity effect on the sensor performance was investigated. Consequently, the flexible PET-PAni-CoFe2O4 sensor is a promising candidate for trace-level on-site sensing of NH3 in wearable electronic or portable devices.
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Affiliation(s)
- Rima D. Alharthy
- Department of Chemistry, Science and Arts College, Rabigh Campus, King Abdulaziz University, Jeddah 21577, Saudi Arabia;
| | - Ahmed Saleh
- Science and Technology Center of Excellence (STCE), Cairo 3066, Egypt
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10
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Tran VV, Nu TTV, Jung HR, Chang M. Advanced Photocatalysts Based on Conducting Polymer/Metal Oxide Composites for Environmental Applications. Polymers (Basel) 2021; 13:3031. [PMID: 34577932 PMCID: PMC8470106 DOI: 10.3390/polym13183031] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/05/2021] [Accepted: 09/05/2021] [Indexed: 01/12/2023] Open
Abstract
Photocatalysts provide a sustainable method of treating organic pollutants in wastewater and converting greenhouse gases. Many studies have been published on this topic in recent years, which signifies the great interest and attention that this topic inspires in the community, as well as in scientists. Composite photocatalysts based on conducting polymers and metal oxides have emerged as novel and promising photoactive materials. It has been demonstrated that conducting polymers can substantially improve the photocatalytic efficiency of metal oxides owing to their superior photocatalytic activities, high conductivities, and unique electrochemical and optical properties. Consequently, conducting polymer/metal oxide composites exhibit a high photoresponse and possess a higher surface area allowing for visible light absorption, low recombination of charge carriers, and high photocatalytic performance. Herein, we provide an overview of recent advances in the development of conducting polymer/metal oxide composite photocatalysts for organic pollutant degradation and CO2 conversion through photocatalytic processes.
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Affiliation(s)
- Vinh Van Tran
- Alan G. MacDiarmid Energy Research Institute, Chonnam National University, Gwangju 61186, Korea;
| | - Truong Thi Vu Nu
- Advanced Institute of Science and Technology, University of Danang, Danang 50000, Vietnam;
| | - Hong-Ryun Jung
- Industry-University Cooperation Foundation, Chonnam National University, Gwangju 61186, Korea
| | - Mincheol Chang
- Alan G. MacDiarmid Energy Research Institute, Chonnam National University, Gwangju 61186, Korea;
- Department of Polymer Engineering, Graduate School, Chonnam National University, Gwangju 61186, Korea
- School of Polymer Science and Engineering, Chonnam National University, Gwangju 61186, Korea
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11
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Suresh R, Rajendran S, Kumar PS, Vo DVN, Cornejo-Ponce L. Recent advancements of spinel ferrite based binary nanocomposite photocatalysts in wastewater treatment. CHEMOSPHERE 2021; 274:129734. [PMID: 33548641 DOI: 10.1016/j.chemosphere.2021.129734] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 01/09/2021] [Accepted: 01/18/2021] [Indexed: 06/12/2023]
Abstract
A lot of studies on spinel ferrites (MFe2O4, M = divalent metal ion) and their binary nanocomposites as photocatalysts in the decontamination of wastewater have been performed, because MFe2O4 nanoparticles are relatively stable, biocompatible and low-cost efficient photocatalyst. The separation of MFe2O4 photocatalyst is easy owing to its excellent magnetic behavior. With this background, the recent developments on photocatalytic performances of MFe2O4 based binary nanocomposites were comprehensively reviewed. Especially, a focus on MFe2O4/metal oxides, MFe2O4/carbon based materials, MFe2O4/polymers, MFe2O4/metal nanoparticles and MFe2O4/other compounds for the photocatalytic degradation of dyes, emerging contaminants and inorganic pollutants has been thoroughly given. The advantages of MFe2O4 based nanocomposites as photocatalysts were also discussed. In addition, the possible pathway of active free radical generation by these photocatalysts under visible and ultraviolet irradiation has been explained. A comparison of photocatalytic activities of MFe2O4 based binary nanocomposites with recent reports has been carried out. This review concludes that MFe2O4 based binary nanocomposites have potential capacity in water purification technology. Nevertheless, their practical utilization in water treatment plants still needs to be further studied.
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Affiliation(s)
- R Suresh
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
| | - Saravanan Rajendran
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile.
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603 110, India
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Lorena Cornejo-Ponce
- Laboratorio de Investigaciones Ambientales Zonas Áridas, Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, 1775, Arica, Chile
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Chen F, Liang W, Qin X, Jiang L, Zhang Y, Fang S, Luo D. Ag@AgCl Photocatalyst Loaded on the 3D Graphene/PANI Hydrogel for the Enhanced Adsorption‐Photocatalytic Degradation and In Situ SERS Monitoring Properties. ChemistrySelect 2021. [DOI: 10.1002/slct.202100580] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Fenghua Chen
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Weiwei Liang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Xiaoyun Qin
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Liying Jiang
- Zhengzhou University of Light Industry School of Electrical and Information Engineering Zhengzhou 450002 Henan P. R. China
| | - Yonghui Zhang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Shaoming Fang
- Zhengzhou University of Light Industry College of Materials and Chemical Engineering Zhengzhou 450002 Henan P. R. China
| | - Dan Luo
- Chinese Academy of Sciences CAS Center for Excellence in Nanoscience Beijing Key Laboratory of Micro-nano Energy and Sensor Beijing Institute of Nanoenergy and Nanosystems 100083 Beijing P.R. China
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13
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Simple synthesis of conductive poly aniline/cobalt ferrite magnetic nanocomposite: its radio waves absorption and photo catalyst ability. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02057-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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14
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Novel CuO/TiO2/PANI nanocomposite: Preparation and photocatalytic investigation for chlorpyrifos degradation in water under visible light irradiation. J Photochem Photobiol A Chem 2021. [DOI: 10.1016/j.jphotochem.2020.113038] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Progress in fabrication of one-dimensional catalytic materials by electrospinning technology. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.09.016] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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16
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Cheng C, Dai J, Li Z, Feng W. Preparation and Magnetic Properties of CoFe 2O 4 Oriented Fiber Arrays by Electrospinning. MATERIALS 2020; 13:ma13173860. [PMID: 32882967 PMCID: PMC7504612 DOI: 10.3390/ma13173860] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 08/16/2020] [Accepted: 08/21/2020] [Indexed: 11/16/2022]
Abstract
The morphology of magnetic materials has a great influence on the properties, which is attributed to the magnetic anisotropy of the materials. Therefore, it is worth studying the fabrication of the aligned fiber and the change of its domain distribution. Nanoparticles and nanofibers were prepared by the hydrothermal and electrospinning methods, respectively. At the same time, the arranged nanofibers were collected by the drum collecting device. After the same annealing at 700 °C, it was found that the diameter of fibers collected by different collecting drums is similar. By studying the hysteresis loops of nanoarrays, it was found that they had strong anisotropy. The easy axis was parallel to the long axis, the Hc and Mr of the easy axis and the hard axis were 1330.5 Oe, 32.39 Am2/kg, and 857.2 Oe, 24.8 Am2/kg, respectively. Due to the anisotropy of the shape and the interaction between the particles, the Hc could not be enhanced. Therefore, the Ms and Hc of the nanoparticles were 80.23 Am2/kg and 979.3 Oe, respectively. The hysteresis loop and the change of magnetic moment during the demagnetization of the CoFe2O4 nanofiber array were simulated via micromagnetic software. The simulated Hc was 1480 Oe, which was similar to the experimental value.
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Affiliation(s)
- Chen Cheng
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China; (C.C.); (W.F.)
| | - Jianfeng Dai
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China; (C.C.); (W.F.)
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;
- Correspondence:
| | - Zengpeng Li
- State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou 730050, China;
- Key Laboratory of Solar Power System Engineering, Vocational and Technical College Jiuquan, Jiuquan 735000, China
| | - Wei Feng
- School of Science, Lanzhou University of Technology, Lanzhou 730050, China; (C.C.); (W.F.)
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Mishra P, Behera A, Kandi D, Ratha S, Parida K. Novel Magnetic Retrievable Visible-Light-Driven Ternary Fe3O4@NiFe2O4/Phosphorus-Doped g-C3N4 Nanocomposite Photocatalyst with Significantly Enhanced Activity through a Double-Z-Scheme System. Inorg Chem 2020; 59:4255-4272. [DOI: 10.1021/acs.inorgchem.9b02996] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Priti Mishra
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar 752050, Odisha, India
| | - Arjun Behera
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar 752050, Odisha, India
| | - Debasmita Kandi
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar 752050, Odisha, India
| | - Satyajit Ratha
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar 752050, Odisha, India
| | - Kulamani Parida
- School of Basic Sciences, Indian Institute of Technology Bhubaneswar 752050, Odisha, India
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Abstract
Solar radiation is becoming increasingly appreciated because of its influence on living matter and the feasibility of its application for a variety of purposes. It is an available and everlasting natural source of energy, rapidly gaining ground as a supplement and alternative to the nonrenewable energy feedstock. Actually, an increasing interest is involved in the development of efficient materials as the core of photocatalytic and photothermal processes, allowing solar energy harvesting and conversion for many technological applications, including hydrogen production, CO2 reduction, pollutants degradation, as well as organic syntheses. Particularly, photosensitive nanostructured hybrid materials synthesized coupling inorganic semiconductors with organic compounds, and polymers or carbon-based materials are attracting ever-growing research attention since their peculiar properties overcome several limitations of photocatalytic semiconductors through different approaches, including dye or charge transfer complex sensitization and heterostructures formation. The aim of this review was to describe the most promising recent advances in the field of hybrid nanostructured materials for sunlight capture and solar energy exploitation by photocatalytic processes. Beside diverse materials based on metal oxide semiconductors, emerging photoactive systems, such as metal-organic frameworks (MOFs) and hybrid perovskites, were discussed. Finally, future research opportunities and challenges associated with the design and development of highly efficient and cost-effective photosensitive nanomaterials for technological claims were outlined.
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Krishna S, Sathishkumar P, Pugazhenthiran N, Guesh K, Mangalaraja RV, Kumaran S, Gracia-Pinilla MA, Anandan S. Magnetically recyclable CoFe2O4/ZnO nanocatalysts for the efficient catalytic degradation of Acid Blue 113 under ambient conditions. RSC Adv 2020; 10:16473-16480. [PMID: 35498872 PMCID: PMC9052941 DOI: 10.1039/d0ra00082e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Accepted: 03/27/2020] [Indexed: 11/29/2022] Open
Abstract
CoFe2O4/ZnO magnetic nanocatalysts were synthesized using a low-frequency ultrasound-assisted technique to enhance the optical, morphological, magnetic and catalytic properties of ZnO. The as-synthesized nanocatalysts were characterized by XRD, Raman, TEM, DR-UV-Vis and VSM analyses in order to confirm the expected modifications of the resulting nanocatalysts. The Raman spectral analysis revealed substitutional Zn2+ in the CoFe2O4/ZnO nanocatalyst. The as-synthesized material was tested for its catalytic activity in the degradation of Acid Blue (AB113), a known textile pollutant. The CoFe2O4 and CoFe2O4/ZnO nanocatalysts revealed the efficient catalytic degradation of AB113 in ambient conditions. The nanocatalyst dosage and the initial concentration of AB113 were varied by fixing one parameter as constant in order to determine the maximum catalytic efficiency with the minimum catalyst loading for AB113 degradation. The CoFe2O4/ZnO nanocatalyst demonstrated 10-fold enhanced mineralization of AB113 compared to the individual bare nanocatalysts, which could be achieved within 3 hours of catalytic degradation of AB113. The magnetic CoFe2O4/ZnO nanocatalyst was found to be stable for six consecutive recycles of AB113 degradation, which indicates that the catalytic efficiency of the nanocatalyst was retained after various numbers of cycles. CoFe2O4/ZnO magnetic nanocatalysts were synthesized using a low-frequency ultrasound-assisted technique to enhance the optical, morphological, magnetic and catalytic properties of ZnO.![]()
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Affiliation(s)
- S. Krishna
- Department of Chemistry
- Periyar Maniammai Institute of Science & Technology
- Thanjavur 613403
- India
| | | | - N. Pugazhenthiran
- Laboratorio de Tecnologías Limpias
- Facultad de Ingeniería
- Universidad Católica de la Santísima Concepción
- Concepción
- Chile
| | - Kiros Guesh
- Department of Chemistry
- Aksum University
- Axum 1010
- Ethiopia
| | - R. V. Mangalaraja
- Advanced Ceramics and Nanotechnology Laboratory
- Department of Materials Engineering
- Faculty of Engineering
- University of Concepcion
- Concepcion 4070409
| | - S. Kumaran
- Department of Biotechnology
- Periyar Maniammai Institute of Science & Technology
- Thanjavur 613 403
- India
| | - M. A. Gracia-Pinilla
- Universidad Autonoma de Nuevo Leon
- Facultad de Ciencias Físico-Matematicas
- Av. Universidad
- Cd. Universitaria
- San Nicolas de los Garza
| | - S. Anandan
- Nanomaterials and Solar Energy Conversion Lab
- Department of Chemistry
- National Institute of Technology
- Trichy 620015
- India
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20
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Heterostructured Co0.5Mn0.5Fe2O4-polyaniline nanofibers: highly efficient photocatalysis for photodegradation of methyl orange. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-019-0258-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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21
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Mitra M, Ahamed ST, Ghosh A, Mondal A, Kargupta K, Ganguly S, Banerjee D. Polyaniline/Reduced Graphene Oxide Composite-Enhanced Visible-Light-Driven Photocatalytic Activity for the Degradation of Organic Dyes. ACS OMEGA 2019; 4:1623-1635. [PMID: 31459420 PMCID: PMC6649179 DOI: 10.1021/acsomega.8b02941] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 01/09/2019] [Indexed: 05/10/2023]
Abstract
Creation of an innovative composite photocatalyst, to advance its performance, has attracted researchers to the field of photocatalysis. In this article, a new photocatalyst based on polyaniline/reduced graphene oxide (PANI/RGO) composites has been prepared via the in situ oxidative polymerization method employing RGO as a template. For thermoelectric applications, though a higher percentage (50 wt %) of RGO has been used, for photocatalytic activity, lesser percentages (2, 5, and 8 wt %) of RGO in the composite have given a significant outcome. Furthermore, photoluminescence (PL) spectra, time-resolved fluorescence spectra, and Brunauer-Emmett-Teller surface area analyses confirmed the improved photocatalytic mechanism. PANI/RGO composites under visible light irradiation exhibit amazingly improved activity toward the degradation of cationic and anionic dyes in comparison with pristine PANI or RGO. Here, a PANI/RGO composite, with 5 wt % RGO(PG2), has emerged as the best combination with the degradation percentages of 99.68, 99.35, and 98.73 for malachite green, rhodamine B, and congo red within 15, 30, and 40 min, respectively. Experimental findings show that the introduction of RGO can relieve the agglomeration of PANI nanoparticles and enhance the light absorption of the materials due to an increased surface area. Moreover, the PG2 composite also showed excellent photocatalytic activity to reduce noxious Cr(VI). The effective removal of Cr(VI) up to 94.7% at pH 2 was observed within only 15 min. With the help of the active species trapping experiment, a plausible mechanism for the photocatalytic degradation has been proposed. The heightened activity of the as-synthesized composite compared to that of neat PANI or RGO was generally because of high concentrations of •OH radicals and partly of •O2 - and holes (h+) as concluded from the nitroblue tetrazolium probe test and photoluminescence experiment. It is hoped that the exceptional photocatalytic performance of our work makes the conducting polymer-based composite an effective alternative in wastewater treatment for industrial applications.
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Affiliation(s)
- Mousumi Mitra
- Department
of Physics and Department of Chemistry, Indian Institute
of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Sk. Taheruddin Ahamed
- Department
of Physics and Department of Chemistry, Indian Institute
of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Amrita Ghosh
- Department
of Physics and Department of Chemistry, Indian Institute
of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
| | - Anup Mondal
- Department
of Physics and Department of Chemistry, Indian Institute
of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
- E-mail: . Phone: +91 7044369052 (A.M.)
| | - Kajari Kargupta
- Department
of Chemical Engineering, Jadavpur University, Kolkata 700032, India
| | - Saibal Ganguly
- Department
of Chemical Engineering, BITS Pilani, K K Birla Goa Campus, Zuarinagar, Sancoale 403726, Goa, India
| | - Dipali Banerjee
- Department
of Physics and Department of Chemistry, Indian Institute
of Engineering Science and Technology, Shibpur, Howrah 711103, West Bengal, India
- E-mail: . Phone: +91 9830299253 (D.B.)
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22
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Recent Developments about Conductive Polymer Based Composite Photocatalysts. Polymers (Basel) 2019; 11:polym11020206. [PMID: 30960189 PMCID: PMC6418734 DOI: 10.3390/polym11020206] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 01/16/2019] [Accepted: 01/20/2019] [Indexed: 11/18/2022] Open
Abstract
Conductive polymers have been widely investigated in various applications. Several conductive polymers, such as polyaniline (PANI), polypyrrole (PPy), poly(3,4-ethylenedioxythiophene) (PEDOT)), and polythiophene (PTh) have been loaded with various semiconductor nanomaterials to prepare the composite photocatalysts. However, a critical review of conductive polymer-based composite photocatalysts has not been available yet. Therefore, in this review, we summarized the applications of conductive polymers in the preparation of composite photocatalysts for photocatalytic degradation of hazardous chemicals, antibacterial, and photocatalytic hydrogen production. Various materials were systematically surveyed to illustrate their preparation methods, morphologies, and photocatalytic performances. The synergic effect between conductive polymers and semiconductor nanomaterials were observed for a lot of composite photocatalysts. The band structures of the composite photocatalysts can be analyzed to explain the mechanism of their enhanced photocatalytic activity. The incorporation of conductive polymers can result in significantly improved visible-light driven photocatalytic activity by enhancing the separation of photoexcited charge carriers, extending the light absorption range, increasing the adsorption of reactants, inhibiting photo-corrosion, and reducing the formation of large aggregates. This review provides a systematic concept about how conductive polymers can improve the performance of composite photocatalysts.
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23
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Odling G, Robertson N. Bridging the gap between laboratory and application in photocatalytic water purification. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02438c] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Despite a large number of publications in the field, photocatalytic water treatment is still somewhat disconnected from real world application and we highlight recent developments to address this.
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Affiliation(s)
- Gylen Odling
- EaStCHEM School of Chemistry
- Joseph Black Building
- The King's Buildings
- Edinburgh
- UK
| | - Neil Robertson
- EaStCHEM School of Chemistry
- Joseph Black Building
- The King's Buildings
- Edinburgh
- UK
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24
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Kashyap J, Gautam S, Ashraf SM, Riaz U. Synergistic Performance of Sonolytically Synthesized Poly(1‐naphthylamine)/TiO
2
Nanohybrids: Degradation Studies of Amido Black‐10B Dye. ChemistrySelect 2018. [DOI: 10.1002/slct.201802688] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Jyoti Kashyap
- Materials Research LaboratoryDepartment of Chemistry, Jamia Millia Islamia New Delhi- 110025 India
| | - Shubham Gautam
- Materials Research Center, MNIT Jaipur Rajasthan - 302017 India
| | - S. M. Ashraf
- Materials Research LaboratoryDepartment of Chemistry, Jamia Millia Islamia New Delhi- 110025 India
| | - Ufana Riaz
- Materials Research LaboratoryDepartment of Chemistry, Jamia Millia Islamia New Delhi- 110025 India
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25
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Pant A, Tanwar R, Kaur B, Mandal UK. A magnetically recyclable photocatalyst with commendable dye degradation activity at ambient conditions. Sci Rep 2018; 8:14700. [PMID: 30279537 PMCID: PMC6168602 DOI: 10.1038/s41598-018-32911-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Accepted: 09/18/2018] [Indexed: 11/09/2022] Open
Abstract
An efficient, economical, environment-friendly and easy separable catalyst to treat environmental contaminants is an enduring attention in recent years due to their great potential for environmental protection and remediation. Here we have reported the excellent performance of polyaniline activated heterojunctured Ni0.5Zn0.5Fe2O4 catalyst to degrade azo dye in an aqueous solution at ambient condition. The catalyst was prepared via a simple facile polymerization procedure. The physicochemical properties and structure of the synthesized catalyst was confirmed by TGA, PXRD, FTIR, SEM, HRTEM, XPS, EDX, and DRS techniques. The developed catalyst has shown an accelerated degradation ability of an organic pollutant Orange ll Sodium salt azo dye about 100% for the dye concentration of 50 ppm within five minutes at ambient conditions with 1 g/l loading of catalyst. Simple facile synthesis, easy separation by an external magnet, good reusability and high degradation capability of the catalyst may promote the practical applications of the heterostructured catalyst at ambient condition for water remediation. The present study also explored possible credible charge transfer directions and mechanism of photocatalysis supported by trapping experiments and electrochemical impedance spectroscopy (EIS) measurement for the effective improvement of photocatalytic activity and enhancement of the visible light adsorption.
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Affiliation(s)
- Abhilasha Pant
- University School of Chemical Technology, G.G.S. Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India
| | - Ruchika Tanwar
- University School of Chemical Technology, G.G.S. Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India
| | - Bikramjit Kaur
- University School of Chemical Technology, G.G.S. Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India
| | - Uttam Kumar Mandal
- University School of Chemical Technology, G.G.S. Indraprastha University, Sector 16C, Dwarka, New Delhi, 110078, India.
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26
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Shahabuddin S, Khanam R, Khalid M, Sarih NM, Ching JJ, Mohamad S, Saidur R. Synthesis of 2D boron nitride doped polyaniline hybrid nanocomposites for photocatalytic degradation of carcinogenic dyes from aqueous solution. ARAB J CHEM 2018. [DOI: 10.1016/j.arabjc.2018.05.004] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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27
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Homaeigohar S, Davoudpour Y, Habibi Y, Elbahri M. The Electrospun Ceramic Hollow Nanofibers. NANOMATERIALS (BASEL, SWITZERLAND) 2017; 7:E383. [PMID: 29120403 PMCID: PMC5707600 DOI: 10.3390/nano7110383] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 11/01/2017] [Accepted: 11/06/2017] [Indexed: 12/13/2022]
Abstract
Hollow nanofibers are largely gaining interest from the scientific community for diverse applications in the fields of sensing, energy, health, and environment. The main reasons are: their extensive surface area that increases the possibilities of engineering, their larger accessible active area, their porosity, and their sensitivity. In particular, semiconductor ceramic hollow nanofibers show greater space charge modulation depth, higher electronic transport properties, and shorter ion or electron diffusion length (e.g., for an enhanced charging-discharging rate). In this review, we discuss and introduce the latest developments of ceramic hollow nanofiber materials in terms of synthesis approaches. Particularly, electrospinning derivatives will be highlighted. The electrospun ceramic hollow nanofibers will be reviewed with respect to their most widely studied components, i.e., metal oxides. These nanostructures have been mainly suggested for energy and environmental remediation. Despite the various advantages of such one dimensional (1D) nanostructures, their fabrication strategies need to be improved to increase their practical use. The domain of nanofabrication is still advancing, and its predictable shortcomings and bottlenecks must be identified and addressed. Inconsistency of the hollow nanostructure with regard to their composition and dimensions could be one of such challenges. Moreover, their poor scalability hinders their wide applicability for commercialization and industrial use.
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Affiliation(s)
- Shahin Homaeigohar
- Nanochemistry and Nanoengineering, School of Chemical Engineering, Department of Chemistry and Materials Science, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
| | - Yalda Davoudpour
- The Institute of Mineralogy, Crystallography and Material Science, Faculty of Chemistry and Mineralogy, University of Leipzig, 04109 Leipzig, Germany.
| | - Youssef Habibi
- Department of Materials Research and Technology (MRT), Luxembourg Institute of Science and Technology (LIST), L-4362 Esch-sur-Alzette, Luxembourg.
| | - Mady Elbahri
- Nanochemistry and Nanoengineering, School of Chemical Engineering, Department of Chemistry and Materials Science, Aalto University, Kemistintie 1, 00076 Aalto, Finland.
- Nanochemistry and Nanoengineering, Institute for Materials Science, Faculty of Engineering, Christian-Albrechts-Universität zu Kiel, Kaiserstrasse 2, 24143 Kiel, Germany.
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28
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Advances in Magnetically Separable Photocatalysts: Smart, Recyclable Materials for Water Pollution Mitigation. Catalysts 2016. [DOI: 10.3390/catal6060079] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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29
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Kaur M, Kaur N. Ferrites: Synthesis and Applications for Environmental Remediation. ACS SYMPOSIUM SERIES 2016. [DOI: 10.1021/bk-2016-1238.ch004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Manpreet Kaur
- Department of Chemistry, Punjab Agricultural University, Ludhiana-141 004, India
| | - Navneet Kaur
- Department of Chemistry, Punjab Agricultural University, Ludhiana-141 004, India
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