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Aso S, Onoda H. Hydrothermal synthesis of layered zirconium phosphates and their intercalation properties. ENVIRONMENTAL TECHNOLOGY 2024:1-9. [PMID: 38584436 DOI: 10.1080/09593330.2024.2337822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 03/22/2024] [Indexed: 04/09/2024]
Abstract
Layered inorganic materials are widely used as fillers in nanocomposites due to their unique properties such as mechanical performance, thermal properties, flame resistance, barrier properties, corrosion resistance, catalytic activity, and multifunctionality. Among them, layered α-zirconium phosphate (α-ZrP: Zr(HPO4)2H2O) is one of the representative inorganic materials and unique properties with P-O-H groups that can exchange inorganic and organic cations and intercalate basic molecules. This paper deals with the use of this compound as an adsorbent for heavy metal cations in wastewater. Samples were prepared by hydrothermal treatment at various Zr/P ratio, water amounts, and temperatures. Furthermore, an attempt was made to widen the interlayer distance of the sample using n-butylamine. The α- zirconium phosphate prepared at 160°C for 20 h with Zr/P = 1/2 adsorbed the most amount of metal ions. Furthermore, interlayer amine modification was effective. Then, the behaviour of the adsorption process was observed by varying the time of adsorption from 1 h to 50 h, in order to clarify the change in adsorption of the samples over time.
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Affiliation(s)
- Saki Aso
- Department of Informatics and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
| | - Hiroaki Onoda
- Department of Informatics and Environmental Sciences, Kyoto Prefectural University, Kyoto, Japan
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2
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Shi J, Zhang Y, Yang N, Guan X, Sheng L, Liu L, Zhong W. Covalently surface-grafting α‑zirconium phosphate nanoplatelets enables collagen fiber matrix with ultraviolet barrier, antibacterial, and flame-retardant properties. Int J Biol Macromol 2024; 254:127999. [PMID: 37949264 DOI: 10.1016/j.ijbiomac.2023.127999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2023] [Revised: 11/07/2023] [Accepted: 11/07/2023] [Indexed: 11/12/2023]
Abstract
Manipulating the dispersibility and reactivity of two-dimensional nanomaterials in collagen fibers (CFs) matrix has aroused attention in the fabrication of multifunctional collagen-based nanocomposites. Here, α‑zirconium phosphate nanoplatelets (ZrP NPs) were surface-functionalized with gallic acid (GA) to afford ZrP-GA NPs for engineering CFs matrix. The influence of ZrP-GA NPs on the ultraviolet barrier, antibacterial, and flame-retardant properties of resultant CFs matrix were investigated. Microstructural analysis revealed that ZrP-GA NPs were dispersed and bound within the collagen fibrils and onto the collagen strands in the CFs matrix. The resultant CFs matrix also maintained typical D-periodic structures of collagen fibrils and native branching and interwoven structures of CFs networks with increased porosity and enhanced ultraviolet barrier properties. Inhibition zone testing presented excellent antibacterial activities of the CFs matrix owing to surface grafting of antibacterial GA. Thanks to enhanced dispersion and binding of ZrP NPs with the CFs matrix by surface-functionalization with GA, the resultant CFs matrix reduced the peak heat release rate and the total heat release by 42.9 % and 39.0 %, respectively, highlighting improved flame-retardant properties. We envision that two-dimensional nanomaterials possess great potential in developing reasonable collagen-based nanocomposites towards the manufacture of emergent multifunctional collagen fibers-based wearable electronics.
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Affiliation(s)
- Jiabo Shi
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China.
| | - Yuxuan Zhang
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China
| | - Na Yang
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China
| | - Xiaoyu Guan
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China
| | - Li Sheng
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China
| | - Leipeng Liu
- College of Bioresources Chemical and Materials Engineering and National Demonstration Center for Experimental Light Chemistry Engineering Education, Shaanxi University of Science & Technology, No.6 Xuefu Zhonglu, Weiyang District, Xi'an 710021, China
| | - Wenbin Zhong
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore 637371, Singapore.
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3
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Saravanan C, Anbu Sujitha SD, Senthilkumaran M, Shanmugavelan P, Durai Murugan K, Muthu Mareeswaran P. Photophysical Properties of Linear, Net-structured and Branched Polybenzimidazoles. J Fluoresc 2023; 33:125-134. [PMID: 36282346 DOI: 10.1007/s10895-022-03029-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/12/2022] [Indexed: 02/03/2023]
Abstract
Polybenzimidazoles with three different network structures are synthesized by condensation polymerization between the conventional monomer 3,3'-Diaminobenzidine and three different acid monomers. The synthesised polymer networks are characterized using several characterization techniques such as FT-IR, powder XRD, HR-SEM and TG-DTA analyses. The polybenzimidazoles are amorphous in nature with excellent thermal stability up to 450 ºC. The photophysical properties of polybenzimidazoles are studied using UV-visible absorption and Emission spectral techniques. Further, the excited state photoluminescence decay time measurement shows a functional group dependant decay behaviour. All the three polymers display narrow optical band gap energy and could be applied as a material for solar energy conversion and semiconductors.
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Affiliation(s)
- Chokalingam Saravanan
- Department of Industrial Chemistry, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India
| | - Sugumar Daisylin Anbu Sujitha
- Department of Science and Humanities, Sri Sairam Institute of Technology, West Tambaram, Chennai, 600 044, Tamilnadu, India
| | | | - Poovan Shanmugavelan
- Department of Chemistry, School of Sciences, Tamilnadu Open University, Saidapet, Chennai, 600 015, Tamil Nadu, India
| | - Kandhasamy Durai Murugan
- Department of Chemistry, Syed Hameetha Arts and Science College, Keelakarai, 623 806, Tamilnadu, India
| | - Paulpandian Muthu Mareeswaran
- Department of Industrial Chemistry, Alagappa University, Karaikudi, 630 003, Tamil Nadu, India. .,Department of Oceanography and Coastal Area Studies, Alagappa University, Thondi Campus, Karaikudi, 630 003, Tamilnadu, India.
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4
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Qalyoubi L, Al-Othman A, Al-Asheh S. Removal of ciprofloxacin antibiotic pollutants from wastewater using nano-composite adsorptive membranes. ENVIRONMENTAL RESEARCH 2022; 215:114182. [PMID: 36044960 DOI: 10.1016/j.envres.2022.114182] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 07/27/2022] [Accepted: 08/19/2022] [Indexed: 06/15/2023]
Abstract
The emergence of antibiotics in water has been globally recognized as a critical pollution issue. Antibiotics (such as Ciprofloxacin (CPFX) pose a serious threat to humans and to the ecosystem due to its accumulation in water sources which can lead to chronic health problems and endanger aquatic life. It is therefore crucial to properly remove them from water. In this work, a nano-composite adsorptive membrane based on Zirconium Phosphate (ZrP) adsorbent supported on Polyethersulfone (PES) was synthesized and evaluated for the removal of CPFX from synthetic aqueous solutions. The membranes described here showed a very high antibiotic removal rate. The effect of various parameters such as the initial concentration of the antibiotic, the adsorbent dosage, contact time, pH, and temperature was studied. The equilibrium data were found to reasonably best fit with the Temkin isotherm model. The membranes showed a high ciprofloxacin removal (99.7%) as opposed to (68%) when PES membrane alone was used. Moreover, a significant improvement in the membrane's water flux (100.84 L/m2.h) and permeability (97.62 L/m2.hr.bar) were noticed as opposed to pure PES membrane's flux and permeability. The adsorptive membranes were characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET). The results confirmed the successful formation of ZrP nanoparticles adsorbent within the membrane matrix, and with enhanced hydrophilic properties. The membrane was successfully regenerated and reused up to 5 times. The results of this work showed the potential of such membranes for the removal of ciprofloxacin and at a high efficiency.
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Affiliation(s)
- Liyan Qalyoubi
- Department of Chemical Engineering, American University of Sharjah, PO. Box, 26666, Sharjah, United Arab Emirates
| | - Amani Al-Othman
- Department of Chemical Engineering, American University of Sharjah, PO. Box, 26666, Sharjah, United Arab Emirates.
| | - Sameer Al-Asheh
- Department of Chemical Engineering, American University of Sharjah, PO. Box, 26666, Sharjah, United Arab Emirates
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5
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In-situ polymerization of polycarbazole-zinc oxide nanocomposite: An in silico docking model and in vitro antibacterial biomaterial. Eur Polym J 2022. [DOI: 10.1016/j.eurpolymj.2022.111701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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6
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Mubarak Ali M, John Williams D. Insights of annealed PCz/β-MnO2 nanocomposites as potent material for high temperature applications. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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7
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Van Truong T, Kim DJ. Synthesis of high quality boehmite and γ-alumina for phosphorus removal from water works sludge by extraction and hydrothermal treatment. ENVIRONMENTAL RESEARCH 2022; 212:113448. [PMID: 35580664 DOI: 10.1016/j.envres.2022.113448] [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: 01/26/2022] [Revised: 04/14/2022] [Accepted: 05/05/2022] [Indexed: 06/15/2023]
Abstract
Alum sludge from water treatment was calcined and extracted to synthesize high quality boehmite and γ-alumina for phosphate removal. Synthesized boehmite and γ-alumina were able to remove phosphate quickly and effectively. Boehmite (hydrothermal treatment at 60 °C) showed maximum phosphate removal (adsorption) of 61 mg P/g followed by γ-alumina (50 mg P/g) and the boehmite hydrothermally treated at 120 °C (41 mg P/g). The degree of crystallinity gave more effect on phosphate adsorption of boehmite than that of γ-alumina. The lower the pH, the more phosphate adsorbed on the boehmite and γ-alumina (adsorb phosphate more than 4 times at pH 3 than at pH 11). Spectroscopic analysis (SEM-EDS and FTIR) indicates that phosphate are removed by ligand exchange, electrostatic attraction, and surface precipitation on the synthesized boehmite and γ-alumina.
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Affiliation(s)
- Tuan Van Truong
- Department of Environmental Sciences and Biotechnology & Institute of Energy and Environment, Hallym University, 1 Okcheon, Chuncheon, 24251, South Korea
| | - Dong-Jin Kim
- Department of Environmental Sciences and Biotechnology & Institute of Energy and Environment, Hallym University, 1 Okcheon, Chuncheon, 24251, South Korea.
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8
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Structural, Optical and Electrical Conductivity Studies in Polycarbazole and its Metal Oxide Nano Composites. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02358-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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9
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Abstract
Nanosized α-zirconium phosphate (α-ZrP), unlike microcrystalline α-ZrP, takes less time to prepare and is synthesized directly in organic solvents. During the synthesis of nanosized α-ZrP, the heating step is critical because during which the particle growth/aggregation is ongoing. In order to explore more details of this step, extra water molecules were intentionally introduced to the ethanol gel of nanosized α-ZrP so that the evaporation of the solvent was slowed. To heat the gels at 65 °C for different periods (1-6 days), one could control with ease the synthesized α-ZrP in size, from 63 to 155 nm, and in morphology, from amorphous to highly crystalline. Furthermore, the heating step also affects the intercalated solvent and the dangling propionate groups on the edge of the nanosized α-ZrP, which could be deduced from the intercalation/exfoliation behavior of the nanocrystals. This modified synthesis method of nanosized α-ZrP offers an alternate means to tune the size and morphology of the nanosized α-ZrP for broad applications.
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Affiliation(s)
- Hao Ding
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Zaili Hou
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Luyi Sun
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
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10
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Manea YK, Khan AM, Wani AA, Qashqoosh MT, Shahadat M, Salem MA. Hydrothermally synthesized mesoporous CS-g-PA@TSM functional nanocomposite for efficient photocatalytic degradation of Ciprofloxacin and treatment of metal ions. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.116144] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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11
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Ding H, Khan ST, Zeng S, Sun L. Exfoliation of Nanosized α-Zirconium Phosphate in Methanol. Inorg Chem 2021; 60:8276-8284. [PMID: 34032408 DOI: 10.1021/acs.inorgchem.1c00968] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The exfoliation of microcrystalline α-zirconium phosphate (α-ZrP) in an organic solvent is very difficult to achieve. Surprisingly, the addition of tetra(n-butyl)ammonium hydroxide (TBAOH) into a methanol dispersion of a nanosized α-ZrP brings about the complete exfoliation of nanosheets. To understand the mechanism, we examined the stepwise intercalation/exfoliation of the nanosized α-ZrP using TBAOH in four different solvents (water, methanol, ethanol, and butanol). Propionate groups on the edge of the nanosized α-ZrP prevent TBA cations from entering the galleries. Due to the formation of unstable solvent-intercalated α-ZrP with an increased interlayer distance in methanol and ethanol, TBA cations can overcome the steric hindrance and move into nanosheet layers to exchange with solvent molecules. However, the movability of the cations into the center of the galleries is preferred at a certain interlayer distance range, which leads to exfoliation of α-ZrP in methanol but intercalation only in ethanol. In water, in the beginning, neither intercalation nor exfoliation by TBA cations occurs. An additional amount of TBAOH causes the deformation of propionate groups and removes the barriers on the edges, followed by late intercalation and then exfoliation. On the other hand, butanol, as the solvent, is bulky and effectively limits the intercalation behavior of TBA cations. The weaker polarity of ethanol and butanol, compared with water and methanol, lowers the ion interactions in the solvent, which is another reason why they do not lead to exfoliation.
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Affiliation(s)
- Hao Ding
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Sana T Khan
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Songshan Zeng
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Luyi Sun
- Polymer Program, Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, Connecticut 06269, United States.,Department of Biomedical Engineering, University of Connecticut, Storrs, Connecticut 06269, United States
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12
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Bashir A, Ahad S, Malik LA, Qureashi A, Manzoor T, Dar GN, Pandith AH. Revisiting the Old and Golden Inorganic Material, Zirconium Phosphate: Synthesis, Intercalation, Surface Functionalization, and Metal Ion Uptake. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c04957] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Arshid Bashir
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Sozia Ahad
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Lateef Ahmad Malik
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Aaliya Qureashi
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Taniya Manzoor
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Ghulam Nabi Dar
- Department of Physics, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
| | - Altaf Hussain Pandith
- Laboratory of Nanoscience and Quantum Computations, Department of Chemistry, University of Kashmir, Hazratbal, Srinagar, Kashmir 190006, India
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13
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Horti NC, Kamatagi MD, Patil NR, Nataraj SK, Patil SA, Inamdar SR. Synthesis and photoluminescence properties of polycarbazole/tin oxide (PCz/SnO2) polymer nanocomposites. Polym Bull (Berl) 2020. [DOI: 10.1007/s00289-020-03428-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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14
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Bekkar F, Bettahar F, Moreno I, Meghabar R, Hamadouche M, Hernáez E, Vilas-Vilela JL, Ruiz-Rubio L. Polycarbazole and Its Derivatives: Synthesis and Applications. A Review of the Last 10 Years. Polymers (Basel) 2020; 12:E2227. [PMID: 32998386 PMCID: PMC7601494 DOI: 10.3390/polym12102227] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/24/2020] [Accepted: 09/26/2020] [Indexed: 01/09/2023] Open
Abstract
Polycarbazole and its derivatives have been extensively used for the last three decades, although the interest in these materials briefly decreased. However, the increasing demand for conductive polymers for several applications such as light emitting diodes (OLEDs), capacitators or memory devices, among others, has renewed the interest in carbazole-based materials. In this review, the synthetic routes used for the development of carbazole-based polymers have been summarized, reviewing the main synthetic methodologies, namely chemical and electrochemical polymerization. In addition, the applications reported in the last decade for carbazole derivatives are analysed. The emergence of flexible and wearable electronic devices as a part of the internet of the things could be an important driving force to renew the interest on carbazole-based materials, being conductive polymers capable to respond adequately to requirement of these devices.
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Affiliation(s)
- Fadila Bekkar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnaouer, BP 1524, Oran 31000, Algerie; (F.B.); (F.B.); (R.M.)
| | - Faiza Bettahar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnaouer, BP 1524, Oran 31000, Algerie; (F.B.); (F.B.); (R.M.)
| | - Isabel Moreno
- Macromolecular Chemistry Group (LQM), Organic Chemistry II Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain;
| | - Rachid Meghabar
- Laboratoire de Chimie des Polymères, Université Oran1 Ahmed Ben Bella, El-Mnaouer, BP 1524, Oran 31000, Algerie; (F.B.); (F.B.); (R.M.)
| | - Mohammed Hamadouche
- Laboratoire de Chimie Fine, Département de Chimie, Faculté des Sciences Exactes et Appliquées, Université Oran1 Ahmed Ben Bella, El-Mnaouer, BP 1524, Oran 31000, Algerie;
| | - Estibaliz Hernáez
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (E.H.); (J.L.V.-V.)
| | - José Luis Vilas-Vilela
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (E.H.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
| | - Leire Ruiz-Rubio
- Macromolecular Chemistry Group (LQM), Physical Chemistry Department, Faculty of Science and Technology, University of the Basque Country (UPV/EHU), 48940 Leioa, Spain; (E.H.); (J.L.V.-V.)
- BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
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15
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Das M, Roy S. Methyl red/polycarbazole composites: Humidity sensing characteristics and its adsorption kinetics study. ACTA ACUST UNITED AC 2019. [DOI: 10.1088/1757-899x/561/1/012092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract
Here, we have portrayed the development of novel polycarbazole - organic dye (methyl red) based composite material for humidity sensing application. Polycarbazole (PCz) was synthesized by well known chemical oxidative polymerisation method and PCz-dye composite material was developed via sonochemical technique. The porous nature of this organic moiety based composite material is apparent from FESEM micrograph. The optical property is simultaneously delineated by UV-Visible spectroscopy. The surface porosity of composite material is determined by BET analysis. This composite material is very sensitive towards humidity ranges from 8% to 97%. The best repeatability of the result is observed at very low (8%-23% RH) and very high (75%-97%) RH level. Moreover, the change in capacitance value in presence of different humidity level has been modelled using Redlich-Peterson isotherm model.
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16
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Influence of medium on structure, morphology and electrochemical properties of polydiphenylamine/vanadium pentoxide composite. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0285-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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17
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Khatoon H, Iqbal S, Ahmad S. Influence of carbon nanodots encapsulated polycarbazole hybrid on the corrosion inhibition performance of polyurethane nanocomposite coatings. NEW J CHEM 2019. [DOI: 10.1039/c9nj01671f] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Carbon nanodots encapsulated in a polycarbazole hybrid-dispersed polyurethane nanocomposite coating with new exciting perspectives for high-performance anticorrosive coatings are shown.
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Affiliation(s)
- Halima Khatoon
- Material Research Laboratory
- Jamia Millia Islamia
- New Delhi-110025
- India
| | - Sajid Iqbal
- Material Research Laboratory
- Jamia Millia Islamia
- New Delhi-110025
- India
| | - Sharif Ahmad
- Material Research Laboratory
- Jamia Millia Islamia
- New Delhi-110025
- India
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18
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Golba S. Electrochemical and Opto-Electronic Properties of Carbazole-Based Derivatives with Symmetric A–CZ–A Architecture. RUSS J ELECTROCHEM+ 2018. [DOI: 10.1134/s1023193518070030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Das M, Ghosh S, Roy S. Non-covalent functionalization of CNTs with polycarbazole: a chemiresistive humidity sensor with tunable chemo-electric attributes at room temperature. NEW J CHEM 2018. [DOI: 10.1039/c8nj00288f] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article describes the non-covalent functionalization of multiwall carbon nanotubes (MWCNTs) with polycarbazole (PCz) via an in situ chemical oxidative polymerization method and subsequent fabrication of resistive humidity sensors.
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Affiliation(s)
- Madhurima Das
- Sensor and Actuator Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata-700032
- India
| | - Saptarshi Ghosh
- Sensor and Actuator Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata-700032
- India
| | - Somenath Roy
- Sensor and Actuator Division
- CSIR-Central Glass and Ceramic Research Institute
- Kolkata-700032
- India
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20
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Synthesis, characterization, and electroanalytical studies of Pb2+-selective polypyrrole-Zr(IV) phosphate ion exchange membrane. J Solid State Electrochem 2016. [DOI: 10.1007/s10008-016-3173-z] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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21
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Baig U, Gondal MA, Alam MF, Laskar AA, Alam M, Younus H. Enzyme immobilization and molecular modeling studies on an organic–inorganic polypyrrole–titanium(iv)phosphate nanocomposite. NEW J CHEM 2015. [DOI: 10.1039/c5nj01463h] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A polypyrrole–titanium(iv)phosphate nanocomposite was synthesized by using facile chemical oxidative polymerization of pyrrole in the presence of titanium(iv)phosphate for YADH immobilization.
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Affiliation(s)
- Umair Baig
- Center of Excellence for Scientific Research Collaboration with MIT
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- Laser Research Group
| | - Mohammed Ashraf Gondal
- Center of Excellence for Scientific Research Collaboration with MIT
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
- Laser Research Group
| | - Md Fazle Alam
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Amaj Ahmed Laskar
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
| | - Mahboob Alam
- Division of Bioscience
- Dongguk University
- Gyeongju 780-714
- Republic of Korea
| | - Hina Younus
- Interdisciplinary Biotechnology Unit
- Aligarh Muslim University
- Aligarh-202002
- India
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