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Boucherdoud A, Dahmani K, Seghier A, Douinat O, Kherroub DE, Bestani B. Experimental exploration and DFT analysis of the kinetics and mechanism of malachite green photodegradation catalyzed by polyaniline-copper oxide nanocomposite. J Mol Model 2024; 30:235. [PMID: 38951276 DOI: 10.1007/s00894-024-06039-3] [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: 04/25/2024] [Accepted: 06/21/2024] [Indexed: 07/03/2024]
Abstract
CONTEXT AND RESULTS A nanocomposite photocatalyst consisting of polyaniline (PANI) and copper oxide (CuO) was successfully synthesized through an in-situ polymerization approach using aniline as the precursor. The synthesized nanocomposite was characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-Vis), determination of the point of zero charge (pHPZC), and scanning electron microscopy (SEM). The photocatalytic efficiency of the PANI-CuO nanocomposite was evaluated in the context of photodegrading Malachite Green (MG) dye under visible light. Malachite Green, a synthetic dye commonly used in the textile and aquaculture industries, is a significant contaminant due to its toxic, mutagenic, and carcinogenic properties, making its removal from water resources crucial for environmental and human health. Distilled water artificially contaminated with MG dye was used as the medium for testing. The parameters influencing the photodegradation efficiency were comprehensively investigated. These parameters included catalyst dosage, reaction time, initial dye concentration, and pH. The results of this study indicate that the degradation efficiency of MG dye displayed an upward trend with time, catalyst dosage, and pH while exhibiting a converse relationship with the initial dye concentration. A degradation rate of 97% was achieved with an initial concentration of 20 mg L-1, employing a catalyst dose of 1.6 g L-1 at pH 6 for a reaction time of 180 min. Furthermore, the reusability of the catalyst was assessed, revealing consistent performance over five consecutive cycles. COMPUTATIONAL AND THEORETICAL TECHNIQUES Density functional theory (DFT) was employed to optimize the structures of PANI, PANI-CuO, and their respective complexes formed through dye interaction, employing Gaussian software. These calculations employed the B3LYP/6-311G + + (d,p) basis set in an aqueous environment with water serving as the solvent. The kinetics of Malachite Green degradation were analyzed using both first and second-order kinetic models.
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Affiliation(s)
- Ahmed Boucherdoud
- Laboratory of Environment and Sustainable Development, Faculty of Science and Technology, University of Relizane, 48000, Bourmadia, Algeria.
- Laboratory of Structure, Elaboration, and Application of Molecular Materials (SEA2M), Abdelhamid Ibn Badis University, Mostaganem, Algeria.
| | - Khedidja Dahmani
- Department of Process Engineering, Faculty of Science and Technology, University of Relizane, 48000, Bourmadia, Algeria
| | - Abdelkarim Seghier
- Laboratory of Environment and Sustainable Development, Faculty of Science and Technology, University of Relizane, 48000, Bourmadia, Algeria
| | - Oukacha Douinat
- Laboratory of Environment and Sustainable Development, Faculty of Science and Technology, University of Relizane, 48000, Bourmadia, Algeria
- Laboratory of Structure, Elaboration, and Application of Molecular Materials (SEA2M), Abdelhamid Ibn Badis University, Mostaganem, Algeria
| | - Djamal Eddine Kherroub
- Laboratoire de Chimie des Polymères (LCP), Université d'Oran, 1 Ahmed Ben Bella, Oran, Algeria
| | - Benaouda Bestani
- Laboratory of Structure, Elaboration, and Application of Molecular Materials (SEA2M), Abdelhamid Ibn Badis University, Mostaganem, Algeria
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Aghmasheh M, Rezvani MA, Jafarian V, Aghasadeghi Z. High Oxidation Desulfurization of Fuels Catalyzed by Vanadium-Substituted Phosphomolybdate@Polyaniline@Chitosan as an Inorganic-Organic Hybrid Nanocatalyst. Inorg Chem 2023; 62:5468-5478. [PMID: 36992610 DOI: 10.1021/acs.inorgchem.2c04415] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
From the environmental protection and human health perspectives, the design and synthesis of efficient and reusable oxidative desulfurization nanocatalysts has always been sought after by scientists and industries. In this regard, a new heterogeneous nanocatalyst (V-SPM@PANI@CH) was synthesized by immobilizing Keggin-type vanadium-substituted phosphomolybdate ([PVMo11O39]4-) (named V-SPM) clusters on the surface of polyaniline (PANI) and chitosan (CH) polymers. The features of the assembled nanocatalyst were detected by Fourier transform infrared spectroscopy, ultraviolet-visible spectroscopy, X-ray diffraction (XRD), scanning electron microscopy, and energy-dispersive X-ray spectroscopy techniques in detail. The XRD studies indicated that the average crystallite size of V-SPM@PANI@CH was estimated to be about 36 nm. The catalytic performance of V-SPM@PANI@CH was investigated in the extractive and catalytic oxidation desulfurization (ECOD) procedure of real and thiophenic model gasoline by H2O2/AcOH (volume proportion of 2:1) as an oxidizing system. The optimal desulfurization conditions for ECOD reactions were as follows: 50 mL of model/real gasoline, 0.1 g of V-SPM@PANI@CH, reaction time of 60 min, and reaction temperature of 35 °C. Under the experimental conditions outlined above and the designed ECOD system, the content of sulfur in real gasoline could decline from 0.4985 to 0.0193 wt %, which corresponds to an efficiency of 96%. Moreover, the removal percentage of aromatic hydrocarbons, including thiophene (Th), benzothiophene (BT), and di-benzothiophene (DBT) as model fuels decreases in the order of DBT ≥ BT > Th under identical operating conditions. High catalytic activity was maintained with only a slight loss during five cycles. This work offers the ECOD system (V-SPM@PANI@CH/AcOH/H2O2) for the desulfurization of liquid fuels, which had a great repercussion on the ECOD efficiency.
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Affiliation(s)
- Masomeh Aghmasheh
- Department of Chemistry, Faculty of Science, University of Zanjan, 451561319 Zanjan, Iran
| | - Mohammad Ali Rezvani
- Department of Chemistry, Faculty of Science, University of Zanjan, 451561319 Zanjan, Iran
| | - Vahab Jafarian
- Department of Chemistry, Faculty of Science, University of Zanjan, 451561319 Zanjan, Iran
| | - Zahra Aghasadeghi
- Department of Chemistry, Faculty of Science, University of Zanjan, 451561319 Zanjan, Iran
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Verma R, Belgamwar R, Chatterjee P, Bericat-Vadell R, Sa J, Polshettiwar V. Nickel-Laden Dendritic Plasmonic Colloidosomes of Black Gold: Forced Plasmon Mediated Photocatalytic CO 2 Hydrogenation. ACS NANO 2023; 17:4526-4538. [PMID: 36780645 DOI: 10.1021/acsnano.2c10470] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
In this work, we have designed and synthesized nickel-laden dendritic plasmonic colloidosomes of Au (black gold-Ni). The photocatalytic CO2 hydrogenation activities of black gold-Ni increased dramatically to the extent that measurable photoactivity was only observed with the black gold-Ni catalyst, with a very high photocatalytic CO production rate (2464 ± 40 mmol gNi-1 h-1) and 95% selectivity. Notably, the reaction was carried out in a flow reactor at low temperature and atmospheric pressure without external heating. The catalyst was stable for at least 100 h. Ultrafast transient absorption spectroscopy studies indicated indirect hot-electron transfer from the black gold to Ni in less than 100 fs, corroborated by a reduction in Au-plasmon electron-phonon lifetime and a bleach signal associated with Ni d-band filling. Photocatalytic reaction rates on excited black gold-Ni showed a superlinear power law dependence on the light intensity, with a power law exponent of 5.6, while photocatalytic quantum efficiencies increased with an increase in light intensity and reaction temperature, which indicated the hot-electron-mediated mechanism. The kinetic isotope effect (KIE) in light (1.91) was higher than that in the dark (∼1), which further indicated the electron-driven plasmonic CO2 hydrogenation. Black gold-Ni catalyzed CO2 hydrogenation in the presence of an electron-accepting molecule, methyl-p-benzoquinone, reduced the CO production rate, asserting the hot-electron-mediated mechanism. Operando diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) showed that CO2 hydrogenation took place by a direct dissociation path via linearly bonded Ni-CO intermediates. The outstanding catalytic performance of black gold-Ni may provide a way to develop plasmonic catalysts for CO2 reduction and other catalytic processes using black gold.
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Affiliation(s)
- Rishi Verma
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Rajesh Belgamwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Pratip Chatterjee
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
| | - Robert Bericat-Vadell
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden
| | - Jacinto Sa
- Department of Chemistry-Ångström Laboratory, Uppsala University, Uppsala 75120, Sweden
| | - Vivek Polshettiwar
- Department of Chemical Sciences, Tata Institute of Fundamental Research (TIFR), Mumbai 400005, India
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Jagan K, Surendhiran S, Savitha S, Balu K, Karthick M, Naren Vidaarth T, Karthik A, Kalpana B, Senthilmurugan R. Influence of different alkaline actuators in synthesis of NiO NPs: A comparative green approach on photocatalytic and in vitro biological activity. INORG CHEM COMMUN 2023. [DOI: 10.1016/j.inoche.2023.110618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2023]
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Medjili C, Lakhdari N, Lakhdari D, Berchi A, Osmani N, Laourari I, Vasseghian Y, Berkani M. Synthesis of novel PANI/PVA-NiCu composite material for efficient removal of organic dyes. CHEMOSPHERE 2023; 313:137427. [PMID: 36455660 DOI: 10.1016/j.chemosphere.2022.137427] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Revised: 11/16/2022] [Accepted: 11/26/2022] [Indexed: 06/17/2023]
Abstract
The present work aims the synthesis of a novel, low cost, and environmentally friendly PANI/PVA-CuNi composite by chemical oxidative polymerization of aniline monomer and polyvinyl alcohol (PVA) as film matrix; several percentages of copper (Cu) and Nickel (Ni) were used. UV-Visible spectroscopy, FTIR, SEM-EDX, and TGA were used to characterize the nanocomposites. While PANI/PVA-CuNi nanocomposites were investigated in adsorption experiments of methylene blue (MB) under different controlled conditions (time reaction, adsorbent dosage, initial dye concentration, stirring speed, temperature, and pH of the medium) also various kinetic models were employed to evaluate the efficiency of the adsorption. The results revealed that the10 mg of PANI/PVA-Cu50Ni50 and PANI/PVA-Ni composites Catalyst removed (94% and 93% of methylene blue in 180 min respectively at 10-5 M initial concentration of dye, pH of 13, stirring speed of 150 rpm, the temperature of 301 k. the kinetics data were properly fitted with the pseudo second-order model with a correlation coefficient of 0.98262 and 0.95881 using PANI/PVA-Cu50Ni50 and PANI/PVA-Ni, respectively.
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Affiliation(s)
- Chahinaz Medjili
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria
| | - Nadjem Lakhdari
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria.
| | - Delloula Lakhdari
- Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga 16014, Algiers, Algeria; Laboratoire d'élaboration de Nouveaux Matériaux et leur Caractérisation (ENMC), Université Sétif-1, Algeria.
| | - Abderrahmane Berchi
- Laboratoire d'énergétique et d'électrochimie du solide, Département de génie des procédés, Faculté de Technologie, UFA. Sétif 1, Sétif, 19000, Algeria
| | - Nadjet Osmani
- Nuclear Research Center of Birine, BP 180, Ain Oussera, 17200, Djelfa, Algeria
| | - Ines Laourari
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria
| | - Yasser Vasseghian
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea; School of Engineering, Lebanese American University, Byblos, Lebanon; University Centre for Research & Development, Department of Mechanical Engineering, Chandigarh University, Gharuan, Mohali, Punjab, 140413, India; Department of Sustainable Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India.
| | - Mohammed Berkani
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66 25100, Constantine, Algeria.
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Vinayagasundaram C, Samson Nesaraj A, Sivaranjana P. Overview on multicomponent ceramic composite materials used for efficient photocatalysis – An update. J INDIAN CHEM SOC 2023. [DOI: 10.1016/j.jics.2023.100908] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Kavitha N, Chandramohan A, Sharma D, Dinakaran K. Synthesis and microwave absorption studies on 2D graphitic carbon nitride loaded polyaniline/polyvinyl alcohol nanocomposites. HIGH PERFORM POLYM 2022. [DOI: 10.1177/09540083221134955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A light weight electromagnetic interference (EMI) shielding and microwave absorbing composite films has been developed by loading varying weight content of graphitic carbon nitride (g-C3N4) nanosheets and polyaniline (PANI) into polyvinyl alcohol (PVA) matrix. The prepared PVA/PANI/g-C3N4 (1%, 3%, 5%) composites has been subjected to FTIR, X-Ray powder diffraction, SEM, Thermal studies, Dielectric studies and electromagnetic shielding effectiveness (EMI SE) analysis. The PVA/PANI/g-C3N4 (1%, 3%, 5%) composites was discovered to have improved electrical conductivity, dielectric loss, and dielectric constant. It is observed from the SEM images that the sheet layers of g-C3N4 are wrapped by the polymer matrix and the morphology to PVA/PANI composite in the g-C3N4 indicates homogeneous blending of PVA/PANI without any phase separation and has porous in it. The PANI/g-C3N4 fractured surfaces present are smooth but irregular in appearance indicating good compatibility between the PVA and PANI matrices. The dielectric properties was found to increase on increasing the concentration of the g-C3N4 nanofiller and reached a maximum of 9.8 × 106 at 1 MHz for 3% g-C3N4 in PVA/PANI. The incorporation of g-C3N4 into PVA/PANI enhanced the conductivity and the 5% g-C3N4 loaded composite film exhibited a conductivity value of 0.043 S/cm at 1 MHz. The PVA/PANI/g-C3N4 (1%, 3%, 5%) composites exhibited potential EMI SE values ranging from 24 to 35 dB at 8.6 GHz and from 42 to 63 dB at 12.4 GHz, for instance the PVA/PANI/g-C3N4 5% composite showed highest value of 63 dB at 12.4 GHz. The PVA/PANI/g-C3N4 5% exhibits the maximum highest reflection loss 8 GHz–12 GHz in which the higher absorption of −36 dB is observed at 10.3 GHz of the X-band region.
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Affiliation(s)
| | - Ayyavu Chandramohan
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Kalavakkam, Chennai, India
| | - Devansh Sharma
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
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A Review on Polyaniline: Synthesis, Properties, Nanocomposites, and Electrochemical Applications. INT J POLYM SCI 2022. [DOI: 10.1155/2022/9047554] [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
The development in the use of polyaniline (PANI) in advanced studies makes us draw attention to the presented research and combine it into one study like this one. The unique composition of PANI qualifies it for use in electrochemical applications in addition to many other applications whose use depends on its mechanical properties. Based on this, it is necessary to limit the reactions that produce PANI and the cheapest cost, and then limit the current uses in the formation of nanocomposites with metals, their oxides, and/or carbon nanocomposites in order to determine what is missing from them and work on it again to expand its chemistry. The development in the use of PANI in advanced studies makes us draw attention to the research presented on PANI and combine it into one study. One of the very important things that made PANI possess a very huge research revolution are preparation in a variety of ways, easy and inexpensive, from which a daily product can be obtained with very high purity, as well as its distinctive properties that made it the focus of researchers in various scientific departments. The unique structure of PANI, which is easy to prepare in its pure form or with various chemical compounds including metals, metal oxides, and carbon nanomaterials (such as carbon nanotubes, graphene, graphene oxide, and reduced graphene oxide), qualifies it for use in electrochemical applications. The various studies reviewed showed that PANI gave good results in the applications of super capacitors. In some of the studies mentioned later, it gave a specific capacitance of 503 F/g, cycle stability 85% at 10,000 cycles, energy density 8.88 kW/kg, and power density 96 W h/kg. It was also noted that these values improved significantly when using PANI with its nanocomposites. Because of its good electrical conductivity and the possibility of preparing it with a high surface area with nanostructures in the form of nanowires, nanofibers, and nanotubes, PANI was used as a gas sensor. We have noticed, through the studies conducted in this field, that the properties of PANI as a basic material in gas sensors are greatly improved when it is prepared in the form of PANI nanocomposites, as explained in detail later. From this review, we tried with great effort to shed light on this attractive polymer in terms of its different preparation methods, its distinctive properties, its nanocomposites, and the type of polymerization used for each nanocomposites, as well as its applications in its pure form or with its nanocomposites in the supercapacitor and gas sensor applications.
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Ahmad MJA, Telfah A, Al‐Bataineh QM, Tavares CJ, Hergenröder R. Nanoparticles positioning effect on properties of (PS‐PANI/NiNPs) nanocomposite films. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5870] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Mais Jamil A. Ahmad
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V., Bioresponsive Materials Dortmund Germany
- Technische Universität Berlin Institut für Festkörperphysik Berlin Germany
| | - Ahmad Telfah
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V., Bioresponsive Materials Dortmund Germany
| | - Qais M. Al‐Bataineh
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V., Bioresponsive Materials Dortmund Germany
- Experimental Physics TU Dortmund University Dortmund Germany
- Department of Physics Jordan University of Science & Technology Irbid Jordan
| | - Carlos J. Tavares
- Centre of Physics of Minho and Porto Universities (CF‐UM‐PT) University of Minho Guimarães Portugal
| | - Roland Hergenröder
- Leibniz Institut für Analytische Wissenschaften‐ISAS‐e.V., Bioresponsive Materials Dortmund Germany
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Laourari I, Lakhdari N, Belgherbi O, Medjili C, Berkani M, Vasseghian Y, Golzadeh N, Lakhdari D. Antimicrobial and antifungal properties of NiCu-PANI/PVA quaternary nanocomposite synthesized by chemical oxidative polymerization of polyaniline. CHEMOSPHERE 2022; 291:132696. [PMID: 34718011 DOI: 10.1016/j.chemosphere.2021.132696] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 10/09/2021] [Accepted: 10/23/2021] [Indexed: 06/13/2023]
Abstract
Increasing antimicrobial resistance has led to use of novel technologies such as nanomaterials and nanocomposites that have shown effective antimicrobial and/or antifungal activities against several gram-positive and gram-negative bacteria. There have been limited studies on antimicrobial properties of the combined polymer nanocomposites with transitional bimetallic nanoparticles such as nickel (Ni) and copper (Cu). Thus, the main objective of this study was to synthesis, characterize and investigate the antibacterial and antifungal properties of NiCu-PANI/PVA nanocomposite. The nanocomposite films with different amount of Ni and Cu salts were synthesized by chemical oxidative polymerization of polyaniline using HCl as oxidant and PVA as a stabilizer. Optical, chemical composition, and morphological characteristics as well as thermal stability were evaluated using UV-Visible, FTIR, SEM-EDX, and TGA analyses. Antimicrobial properties were then determined using the disc diffusion assay against gram-negative bacteria (i.e., Escherichia coli ATCC 25922, Klebsiella pneumonia ATCC 700603, Proteus sp.,) and gram-positive bacteria (i.e., Staphylococcus aureus ATCC 2593). Fungal plant pathogens including Aspergillus niger and Fusarium oxysporum f. sp. pisi were also evaluated for determination of antifungal activity of NiCu-PANI/PVA films. Among the synthesized films, Ni65Cu35-PANI/PVA showed excellent antibacterial activity against all the bacteria strains examined in this study. The diameters of inhibition zones for Escherichia coli ATCC 25922, Klebsiella pneumoniae ATCC 700603, Proteus sp., and Staphylococcus aureus ATCC 2593 were 23, 23, 17, and 18 mm, respectively indicating good antibacterial activities. Additionally, NiCu-PANI/PVA, particularly the films with higher Cu intake, showed better antifungal activity against Fusarium oxysporum f. sp. pisi. However, NiCu-PANI/PVA was ineffective against Aspergillus niger.
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Affiliation(s)
- Ines Laourari
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66, 25100, Constantine, Algeria
| | - Nadjem Lakhdari
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66, 25100, Constantine, Algeria.
| | - Ouafia Belgherbi
- Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga, 16014, Algiers, Algeria
| | - Chahinaz Medjili
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66, 25100, Constantine, Algeria
| | - Mohammed Berkani
- Laboratoire Biotechnologies, Ecole Nationale Supérieure de Biotechnologie, Ville Universitaire Ali Mendjeli, BP E66, 25100, Constantine, Algeria.
| | - Yasser Vasseghian
- Department of Chemical Engineering, Quchan University of Technology, Quchan, Iran.
| | - Nasrin Golzadeh
- Science, Technology, Engineering, and Mathematics (STEM) Knowledge Translations Institute, Montreal, Quebec, Canada
| | - Delloula Lakhdari
- Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga, 16014, Algiers, Algeria.
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Charradi K, Daoudi M, Chemek M, Ahmed Z, Alzahrani AYA, Siai A, Chtourou R, Keshk SMAS. Synthesis, Characterization and Optical Properties of Oxidized Poly Vinyl Alcohol. ChemistrySelect 2022. [DOI: 10.1002/slct.202103273] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Khaled Charradi
- Nanomaterials and Systems for Renewable Energy Laboratory Research and Technology Center of Energy Technopark Borj Cedria, BP 095 Hammam Lif Tunisia
| | - Mahmoud Daoudi
- Research Laboratory on Energy and Matter for Nuclear Science Development (LR16CNSTN02) National Center for Nuclear Sciences and Technologies Sidi Thabet Technopark 2020 Tunis Tunisia
| | - Mourad Chemek
- Laboratoire de recherche: Synthèse asymétrique et ingénierie moléculaire de matériaux organiques pour l'électronique organique (LR18ES19) Faculté des Sciences de Monastir Monastir 5000 Tunisia
| | - zakarya Ahmed
- Nanomaterials and Systems for Renewable Energy Laboratory Research and Technology Center of Energy Technopark Borj Cedria, BP 095 Hammam Lif Tunisia
| | - Abdullah Y. A. Alzahrani
- Department of Chemistry Faculty of Science and Arts King Khalid University, Mohail, Asir Saudi Arabia
| | - Amira Siai
- Nanomaterials and Systems for Renewable Energy Laboratory Research and Technology Center of Energy Technopark Borj Cedria, BP 095 Hammam Lif Tunisia
| | - Radhouane Chtourou
- Nanomaterials and Systems for Renewable Energy Laboratory Research and Technology Center of Energy Technopark Borj Cedria, BP 095 Hammam Lif Tunisia
| | - Sherif M. A. S. Keshk
- Nanomaterials and Systems for Renewable Energy Laboratory Research and Technology Center of Energy Technopark Borj Cedria, BP 095 Hammam Lif Tunisia
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Mani SK, Bhandari R. Microwave-assisted synthesis of self-assembled network of Graphene oxide-Polyethylenimine-Polyvinyl alcohol hydrogel beads for removal of cationic and anionic dyes from wastewater. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117809] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Liu FY, Zeng HY, Xiong J, Peng DY, Xu S, An DS. A p–n heterostructural g-C 3N 4/PANI composite for the remediation of heavy metals and organic pollutants in water. NEW J CHEM 2022. [DOI: 10.1039/d2nj02162e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel g-C3N4/PANI composite was fabricated via surface charge-induced electrostatic self-assembly method, which showed excellent a photocatalytic performance for Cr(vi) reduction and MO degradation under visible-light.
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Affiliation(s)
- Fang-Yuan Liu
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Hong-Yan Zeng
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Jie Xiong
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Di-Yang Peng
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - Sheng Xu
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
| | - De-Shun An
- College of Chemical Engineering, Xiangtan University, Xiangtan, 411105, Hunan, China
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Hamdi-Mohammadabad P, Tohidi T, Talebzadeh R, Mohammad-Rezaei R, Rahmatallahpur S. Preparation and characterization of gamma irradiated ZnO/PANI hybrid films. J Radioanal Nucl Chem 2021. [DOI: 10.1007/s10967-021-08053-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Ali HE, Abd-Rabboh HS, Awwad NS, Algarni H, Sayed M, El-Rehim AA, Abdel-Aziz M, Khairy Y. Photoluminescence, optical limiting, and linear/nonlinear optical parameters of PVP/PVAL blend embedded with silver nitrate. OPTIK 2021; 247:167863. [DOI: 10.1016/j.ijleo.2021.167863] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Oxygen ion induced variations in the structural and Linear/Nonlinear optical properties of the PVA/PANI/Ag nanocomposite film. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2021.108926] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Synthesis of novel metal/bimetal nanoparticle-modified ZSM-5 zeolite nanocomposite catalysts and application on toluene methylation. RESEARCH ON CHEMICAL INTERMEDIATES 2021. [DOI: 10.1007/s11164-021-04597-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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Polymer Film Blend of Polyvinyl Alcohol, Trichloroethylene and Cresol Red for Gamma Radiation Dosimetry. Polymers (Basel) 2021; 13:polym13111866. [PMID: 34199714 PMCID: PMC8200037 DOI: 10.3390/polym13111866] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/03/2021] [Accepted: 05/07/2021] [Indexed: 12/15/2022] Open
Abstract
This study investigated the polymer film composite of polyvinyl alcohol (PVA), trichlorethylene (TCE) and cresol red (CR) dye irradiated with gamma (γ) rays for potential application as radiation dosimetry. The film was prepared via the solvent-casting method with varying concentrations of TCE. Film samples were exposed to radiation from a γ-rays radiation source of 60Cobalt isotope. Color changes before and after γ-rays irradiation were observed, and the optical properties of the polymer films were investigated by spectrophotometry. Results show that increasing the radiation dose physically changed the color of the polymer film, from purple (pH > 8.8) without radiation (0 kGy) to yellow (almost transparent) (2.8 < pH < 7.2) at the highest dose (12 kGy). The concentration of acid formed due to irradiation increased with the increase in irradiation doses and at higher TCE content. The critical doses of PVA-TCE composites decreased linearly with the increase of TCE composition, facilitating an easy calibration process. The dose response at 438 nm increased exponentially with increasing radiation dose, but showed an opposite trend at the 575 nm band. An increase in the TCA concentration indicated a decrease in the absorption edge and an increase in activation energy, but both decreased for all TCE concentrations at higher doses. The energy gap for the direct and the indirect transitions decreased with increasing TCE concentration and γ-rays radiation dose. The results of this study demonstrated the potential application of PVA-TCE-CR polymer film as γ-rays irradiation dosimetry in a useful dose range of 0-12 kGy.
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Susilawati S, Prayogi S, Arif MF, Ismail NM, Bilad MR, Asy’ari M. Optical Properties and Conductivity of PVA-H 3PO 4 (Polyvinyl Alcohol-Phosphoric Acid) Film Blend Irradiated by γ-Rays. Polymers (Basel) 2021; 13:polym13071065. [PMID: 33800592 PMCID: PMC8036257 DOI: 10.3390/polym13071065] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 03/18/2021] [Accepted: 03/25/2021] [Indexed: 12/11/2022] Open
Abstract
This study assesses the optical properties and conductivity of PVA–H3PO4 (polyvinyl alcohol–phosphoric acid) polymer film blend irradiated by gamma (γ) rays. The PVA–H3PO4 polymer film blend was prepared by the solvent-casting method at H3PO4 concentrations of 75 v% and 85 v%, and then irradiated up to 25 kGy using γ-rays from the Cobalt-60 isotope source. The optical absorption spectrum was measured using an ultraviolet–visible spectrophotometer over a wavelength range of 200 to 700 nm. It was found that the absorption peaks are in three regions, namely two peaks in the ultraviolet region (310 and 350 nm) and one peak in the visible region (550 nm). The presence of an absorption peak after being exposed to hυ energy indicates a transition of electrons from HOMO to LUMO within the polymer chain. The study of optical absorption shows that the energy band gap (energy gap) depends on the radiation dose and the concentration of H3PO4 in the polymer film blend. The optical absorption, absorption edge, and energy gap decrease with increasing H3PO4 concentration and radiation dose. The interaction between PVA and H3PO4 blend led to an increase in the conductivity of the resulting polymer blend film.
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Affiliation(s)
- Susilawati Susilawati
- Master of Science Education Program, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia
- Physics Education, FKIP, University of Mataram, Jl. Majapahit No. 62, Mataram 83125, Indonesia
- Correspondence: (S.S.); (N.M.I.)
| | - Saiful Prayogi
- Faculty of Applied Science and Enginering, Universitas Pendidikan Mandalika UNDIKMA, Jl. Pemuda No. 59A, Mataram 83126, Indonesia; (S.P.); (M.R.B.); (M.A.)
| | - Muhamad F. Arif
- Department of Materials Engineering, Institut Teknologi Sumatera, Lampung Selatan 35365, Indonesia;
| | - Noor Maizura Ismail
- Faculty of Engineering, Universiti Malaysia Sabah, Jln UMS, Kota Kinabalu 88400, Malaysia
- Correspondence: (S.S.); (N.M.I.)
| | - Muhammad Roil Bilad
- Faculty of Applied Science and Enginering, Universitas Pendidikan Mandalika UNDIKMA, Jl. Pemuda No. 59A, Mataram 83126, Indonesia; (S.P.); (M.R.B.); (M.A.)
| | - Muhammad Asy’ari
- Faculty of Applied Science and Enginering, Universitas Pendidikan Mandalika UNDIKMA, Jl. Pemuda No. 59A, Mataram 83126, Indonesia; (S.P.); (M.R.B.); (M.A.)
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20
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Saliu OD, Mamo MA, Ndungu PG, Ramontja J. Micellization of a starch-poly(1,4-butylene succinate) nano-hybrid for enhanced energy storage. RSC Adv 2021; 11:11745-11759. [PMID: 35423662 PMCID: PMC8695992 DOI: 10.1039/d1ra00635e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 03/11/2021] [Indexed: 12/19/2022] Open
Abstract
In this work, we report on a reverse micellization approach to prepare uncarbonized starch and poly(1,4-butylene succinate) hybrids with exceptional charge storage performance. Uncarbonized starch was activated through protonation, hybridized with poly (1,4-butylene succinate), configured into conductive reverse micelles, and incorporated with magnetite nanoparticles. Before magnetite incorporation, the maximum specific capacitance (C sp), energy density (E d), power density (P d) and retention capacity (%) of the reverse micelles were estimated to be 584 F g-1, 143 W h kg-1, 2356 W kg and 97.5%. After magnetite incorporation, we achieved a maximum supercapacitive performance of 631 F g-1, 204 W h kg-1, 4371 W kg-1 and 98%. We demonstrate that the use of magnetite incorporated St-PBS reverse micelles minimizes the contact resistance between the two supercapacitor electrodes, resulting in high charge storage capacity.
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Affiliation(s)
- O D Saliu
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg P. O. Box 17011 Doornfontein 2028 Johannesburg South Africa
| | - M A Mamo
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg P. O. Box 17011 Doornfontein 2028 Johannesburg South Africa
| | - P G Ndungu
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg P. O. Box 17011 Doornfontein 2028 Johannesburg South Africa
| | - J Ramontja
- Energy, Sensors and Multifunctional Nanomaterials Research Group, Department of Chemical Sciences, University of Johannesburg P. O. Box 17011 Doornfontein 2028 Johannesburg South Africa
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21
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Issa SAM, Zakaly HM, Pyshkina M, Mostafa MY, Rashad M, Soliman T. Structure, optical, and radiation shielding properties of PVA–BaTiO3 nanocomposite films: An experimental investigation. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.109281] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Abomostafa H. Linear and nonlinear optical properties of innovative synthesis of nickel nanoparticles in polystyrene matrix as a new optical system. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129126] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Hammed MG, Hassan AA. Enhancement of the Structural and Optical Properties of (PVA-PANI) Polymer Blend By Addition of CuI Nanoparticles. ACTA ACUST UNITED AC 2020. [DOI: 10.1088/1757-899x/928/7/072157] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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24
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Steps Toward the Band Gap Identification in Polystyrene Based Solid Polymer Nanocomposites Integrated with Tin Titanate Nanoparticles. Polymers (Basel) 2020; 12:polym12102320. [PMID: 33050519 PMCID: PMC7600492 DOI: 10.3390/polym12102320] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/04/2020] [Accepted: 10/07/2020] [Indexed: 12/11/2022] Open
Abstract
In the current study, the film fabrication of polystyrene (PS) based polymer nanocomposites (NCs) with tuned refractive index and absorption edge was carried out using the solution cast method. X-ray diffraction (XRD) and ultraviolet-visible (UV-Vis) light characterization techniques were performed. The structural and optical properties of the prepared films were specified. The hump of PS decreased significantly when SnTiO3 nanoparticles (NPs) were introduced. Sharp and high intense peaks of SnTiO3 NPs at a high filler ratio were observed. The crystalline size was determined for SnTiO3 NPs from the sharp crystalline peaks using Debye-Scherrer’s equation and was found to be 25.179 nm, which is close enough to that described by the supplier. Several optical parameters, such as absorption coefficient (α), refractive index (n), and optical dielectric properties, were investigated. The absorption spectra were tuned with increasing SnTiO3NPs. Upon the addition of the NPs to the PS host polymer, the absorption edge undergoes shifting to lesser photon energy sides. The optical dielectric constant (ε′) was correlated to the refractive index. The study of the optical band gap was conducted in detail using both Tauc’s model and the optical dielectric loss (ε″) parameter. The results showed that the ε″ parameter is noteworthy to be measured in the optical band gap study of materials.
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25
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Aziz SB, Brza MA, Nofal MM, Abdulwahid RT, Hussen SA, Hussein AM, Karim WO. A Comprehensive Review on Optical Properties of Polymer Electrolytes and Composites. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E3675. [PMID: 32825367 PMCID: PMC7503865 DOI: 10.3390/ma13173675] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2020] [Revised: 08/09/2020] [Accepted: 08/17/2020] [Indexed: 12/20/2022]
Abstract
Polymer electrolytes and composites have prevailed in the high performance and mobile marketplace during recent years. Polymer-based solid electrolytes possess the benefits of low flammability, excellent flexibility, good thermal stability, as well as higher safety. Several researchers have paid attention to the optical properties of polymer electrolytes and their composites. In the present review paper, first, the characteristics, fundamentals, advantages and principles of various types of polymer electrolytes were discussed. Afterward, the characteristics and performance of various polymer hosts on the basis of specific essential and newly published works were described. New developments in various approaches to investigate the optical properties of polymer electrolytes were emphasized. The last part of the review devoted to the optical band gap study using two methods: Tauc's model and optical dielectric loss parameter. Based on recently published literature sufficient quantum mechanical backgrounds were provided to support the applicability of the optical dielectric loss parameter for the band gap study. In this review paper, it was demonstrated that both Tauc's model and optical dielectric loss should be studied to specify the type of electron transition and estimate the optical band gap accurately. Other parameters such as absorption coefficient, refractive index and optical dielectric constant were also explored.
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Affiliation(s)
- Shujahadeen B. Aziz
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq; (R.T.A.); (S.A.H.); (A.M.H.)
- Department of Civil Engineering, College of Engineering, Komar University of Science and Technology, Sulaimani 46001, Kurdistan Regional Government, Iraq
| | - M. A. Brza
- Manufacturing and Material Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia;
| | - Muaffaq M. Nofal
- Department of Mathematics and General Sciences, Prince Sultan University, P.O. Box 66833, Riyadh 11586, Saudi Arabia;
| | - Rebar T. Abdulwahid
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq; (R.T.A.); (S.A.H.); (A.M.H.)
- Department of Physics, College of Education, University of Sulaimani, Kurdistan Regional Government, Old Campus, Sulaimani 46001, Iraq
| | - Sarkawt A. Hussen
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq; (R.T.A.); (S.A.H.); (A.M.H.)
| | - Ahang M. Hussein
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq; (R.T.A.); (S.A.H.); (A.M.H.)
| | - Wrya O. Karim
- Department of Chemistry, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Kurdistan Regional Government, Iraq;
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26
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NiO nanoparticle doped-PVA-MF polymer nanocomposites: Preparation, Congo red dye adsorption and antibacterial activity. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.04.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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27
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Synthesis and characterization of new nanosphere hybrid nanocomposite polyoxometalate@ceramic@polyaniline as a heterogeneous catalyst for oxidative desulfurization of real fuel. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.09.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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28
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Jum'h I, Mousa MS, Mhawish M, Sbeih S, Telfah A. Optical and structural properties of (PANI‐CSA‐PMMA)/NiNPs nanocomposites thin films for organic optical filters. J Appl Polym Sci 2019. [DOI: 10.1002/app.48643] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Inshad Jum'h
- School of Basic Sciences and HumanitiesGerman‐Jordanian University Amman 11180 Jordan
| | - Marwan S. Mousa
- Surface Physics and Materials Technology lab. Department of PhysicsMutah University Al‐Karak Jordan
| | - Mahmoud Mhawish
- Surface Physics and Materials Technology lab. Department of PhysicsMutah University Al‐Karak Jordan
| | - Suhad Sbeih
- School of Basic Sciences and HumanitiesGerman‐Jordanian University Amman 11180 Jordan
| | - Ahmad Telfah
- Leibniz‐Institut für Analytische Wissenschaften ‐ ISAS ‐ e.V 44139 Dortmund Germany
- Hamdi Mango Center for Scientific ResearchThe University of Jordan Amman 11942 Jordan
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29
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Brza MA, Aziz SB, Anuar H, Al Hazza MHF. From Green Remediation to Polymer Hybrid Fabrication with Improved Optical Band Gaps. Int J Mol Sci 2019; 20:E3910. [PMID: 31405255 PMCID: PMC6721056 DOI: 10.3390/ijms20163910] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2019] [Revised: 08/04/2019] [Accepted: 08/08/2019] [Indexed: 11/17/2022] Open
Abstract
The present work proposed a novel approach for transferring high-risk heavy metals tometal complexes via green chemistry remediation. The method of remediation of heavy metals developed in the present work is a great challenge for global environmental sciences and engineering because it is a totally environmentally friendly procedure in which black tea extract solution is used. The FTIR study indicates that black tea contains enough functional groups (OH and NH), polyphenols and conjugated double bonds. The synthesis of copper complex was confirmed by the UV-vis, XRD and FTIR spectroscopic studies. The XRD and FTIR analysis reveals the formation of complexation between Cu metal complexes and Poly (Vinyl Alcohol) (PVA) host matrix. The study of optical parameters indicates that PVA-based hybrids exhibit a small optical band gap, which is close to inorganic-based materials. It was noted that the absorption edge shifted to lower photon energy. When Cu metal complexes were added to PVA polymer, the refractive index was significantly tuned. The band gap shifts from 6.2 eV to 1.4 eV for PVA incorporated with 45 mL of Cu metal complexes. The nature of the electronic transition in hybrid materials was examined based on the Taucs model, while a close inspection of the optical dielectric loss was also performed in order to estimate the optical band gap. The obtained band gaps of the present work reveal that polymer hybrids with sufficient film-forming capability could be useful to overcome the drawbacks associated with conjugated polymers. Based on the XRD results and band gap values, the structure-property relationships were discussed in detail.
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Affiliation(s)
- M A Brza
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq
| | - Shujahadeen B Aziz
- Advanced Polymeric Materials Research Lab., Department of Physics, College of Science, University of Sulaimani, Qlyasan Street, Sulaimani 46001, Iraq.
- Komar Research Center (KRC), Komar University of Science and Technology, Sulaimani 46001, Iraq.
| | - H Anuar
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
| | - Muataz Hazza F Al Hazza
- Department of Manufacturing and Materials Engineering, Faculty of Engineering, International Islamic University of Malaysia, Kuala Lumpur, Gombak 53100, Malaysia
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Innovative Synthesis of Nickel Nanoparticles in Polystyrene Matrix with Enhanced Optical and Magnetic Properties. J Inorg Organomet Polym Mater 2019. [DOI: 10.1007/s10904-019-01157-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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31
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Gharibshahi E, Saion E, Johnston RL, Ashraf A. Theory and experiment of optical absorption of platinum nanoparticles synthesized by gamma radiation. Appl Radiat Isot 2019; 147:204-210. [PMID: 30953937 DOI: 10.1016/j.apradiso.2019.02.015] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 01/22/2019] [Accepted: 02/20/2019] [Indexed: 10/27/2022]
Abstract
Platinum nanoparticles were synthesized using the gamma radiolytic technique in an aqueous solution containing Platinum tetraammine chloride in presence of poly vinyl pyrrolidone, isopropanol, tetrahydrofuran and deionized water. The gamma irradiation was carried out in a60Co gamma source chamber and the particle size was found to decrease from 4.88 to 3.14 nm on increasing the gamma radiation dose from 80 to 120 kGy. UV-visible absorption spectra were measured and revealed two steady absorption maxima at 216 and 264 nm in the UV region, which was blue shifted (i.e. toward lower wavelength) with decreasing particle size. By taking the conduction electrons of an isolated particle that are not entirely free, but instead bound to their respective quantum levels, the optical absorption of platinum nanoparticles can be calculated via intra-band quantum excitation for particle sizes similar to those measured experimentally. We found that the calculated absorption maxima of electronic excitations matched the measured absorption maxima well. This finding suggests that the optical absorption of metal nanoparticles commonly applied in nanoscience and nanotechnology can be described accurately by the quantum excitation of conduction electrons.
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Affiliation(s)
- Elham Gharibshahi
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), 43400, UPM Serdang, Selangor, Malaysia; Department of Electrical and Computer Engineering, University of Texas at San Antonio (UTSA), One UTSA Circle, San Antonio, Texas, 78249, USA.
| | - Elias Saion
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), 43400, UPM Serdang, Selangor, Malaysia
| | | | - Ahmadreza Ashraf
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), 43400, UPM Serdang, Selangor, Malaysia
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Purification and Glutaraldehyde Activation Study on HCl-Doped PVA⁻PANI Copolymers with Different Aniline Concentrations. Molecules 2018; 24:molecules24010063. [PMID: 30585194 PMCID: PMC6337460 DOI: 10.3390/molecules24010063] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 12/18/2018] [Accepted: 12/21/2018] [Indexed: 11/17/2022] Open
Abstract
In this work, we report the synthesis and purification of polyvinyl alcohol-polyaniline (PVA⁻PANI) copolymers at different aniline concentrations, and their molecular (¹H-NMR and FTIR), thermal (TGA/DTG/DSC), optical (UV⁻Vis-NIR), and microstructural (XRD and SEM) properties before and after activation with glutaraldehyde (GA) in order to obtain an active membrane. The PVA⁻PANI copolymers were synthesized by chemical oxidation of aniline using ammonium persulfate (APS) in an acidified (HCl) polyvinyl alcohol matrix. The obtained copolymers were purified by dialysis and the precipitation⁻redispersion method in order to eliminate undesired products and compare changes due to purification. PVA⁻PANI products were analyzed as gels, colloidal dispersions, and thin films. ¹H-NMR confirmed the molecular structure of PVA⁻PANI as the proposed skeletal formula, and FTIR of the obtained purified gels showed the characteristic functional groups of PVA gels with PANI nanoparticles. After exposing the material to a GA solution, the presence of the FTIR absorption bands at 1595 cm-1, 1650 cm-1, and 1717 cm-1 confirmed the activation of the material. FTIR and UV⁻Vis-NIR characterization showed an increase of the benzenoid section of PANI with GA exposure, which can be interpreted as a reduction of the polymer with the time of activation and concentration of the solution.
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Gharibshahi L, Saion E, Gharibshahi E, Shaari AH, Matori KA. Influence of Poly(vinylpyrrolidone) concentration on properties of silver nanoparticles manufactured by modified thermal treatment method. PLoS One 2017; 12:e0186094. [PMID: 29045414 PMCID: PMC5646761 DOI: 10.1371/journal.pone.0186094] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2017] [Accepted: 09/25/2017] [Indexed: 01/14/2023] Open
Abstract
Very narrow and pure silver nanoparticles were synthesized by modified thermal treatment method via oxygen and nitrogen flow in succession. The structural and optical properties of the calcined silver nanoparticles at 600°C with diverse Poly(vinylpyrrolidone) concentrations varied from 2% to 4% were studied by means of different techniques. Fourier transform infrared spectroscopy was used to monitor the production of pure Ag nanoparticles at a given Poly(vinylpyrrolidone) concentration. The X-ray powder diffraction spectra are evidence for the transformation of the amorphous sample at 30°C to the cubic crystalline nanostructures at the calcination temperatures for all Poly(vinylpyrrolidone) concentrations. The transmission electron microscopy images showed the creation of spherical silver nanoparticles with the average particle size decreased by increasing Poly(vinylpyrrolidone) concentrations from 4.61 nm at 2% to 2.49 nm at 4% Poly(vinylpyrrolidone). The optical properties were investigated by means of UV-vis absorption spectrophotometer, which showed an increase in the conduction band of Ag nanoparticles with increasing Poly(vinylpyrrolidone) concentrations from 2.83 eV at 2% Poly(vinylpyrrolidone) to 2.94 eV at 4% Poly(vinylpyrrolidone) due to decreasing particle size. This was due to less attraction between conduction electrons and metal ions for smaller particle size corresponding to fewer atoms that made up the metal nanoparticles.
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Affiliation(s)
- Leila Gharibshahi
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), Serdang, Selangor, Malaysia
| | - Elias Saion
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), Serdang, Selangor, Malaysia
| | - Elham Gharibshahi
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), Serdang, Selangor, Malaysia
| | - Abdul Halim Shaari
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), Serdang, Selangor, Malaysia
| | - Khamirul Amin Matori
- Department of Physics, Faculty of Science, University of Putra Malaysia (UPM), Serdang, Selangor, Malaysia
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Gharibshahi E, Saion E, Ashraf A, Gharibshahi L. Size-Controlled and Optical Properties of Platinum Nanoparticles by Gamma Radiolytic Synthesis. Appl Radiat Isot 2017; 130:211-217. [PMID: 29028581 DOI: 10.1016/j.apradiso.2017.09.012] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2017] [Revised: 08/03/2017] [Accepted: 09/08/2017] [Indexed: 10/18/2022]
Abstract
Gamma radiolytic synthesis was used to produce size-controlled spherical platinum nanoparticles from an aqueous solution containing platinum tetraammine and polyvinyl pyrrolidone. The structural characterizations were performed using X-ray diffraction, and transmission electron microscopy. The transmission electron microscopy was used to determine the average particle diameter, which decreased from 4.4nm at 80kGy to 2.8nm at 120kGy. The UV-visible absorption spectrum was measured and found that platinum nanoparticles exhibit two steady absorption maxima in UV regions due to plasmonic excitation of conduction electrons, which blue shifted to lower wavelengths with a decrease in particle size. We consider the conduction electrons of platinum nanoparticles to follow Thomas-Fermi-Dirac-Weizsacker atomic model that they are not entirely free but weakly bounded to particles at lower-energy states {n = 5, l = 2 or 5d} and {n = 6, l = 0 or 6s}, which upon receiving UV photon energy the electrons make intra-band quantum excitations to higher-energy states allowed by the principles of quantum number that results the absorption maxima. We found an excellent agreement between the experimental and theoretical results, which suggest that the optical absorption of metal nanoparticles could be fundamentally described by a quantum mechanical interpretation, which could be more relevant to photo-catalysis and heterogeneous catalysis.
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Affiliation(s)
- Elham Gharibshahi
- Department of Physics, Faculty of Science, University of Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia; Department of Physics and Astronomy, University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
| | - Elias Saion
- Department of Physics, Faculty of Science, University of Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Ahmadreza Ashraf
- Department of Physics, Faculty of Science, University of Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
| | - Leila Gharibshahi
- Department of Physics, Faculty of Science, University of Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Zhao H, Li Z, Zhang N, Du Y, Xu P. Gamma irradiation induced synthesis of electromagnetic functionalized aligned CoxNi1−x alloy nanobundles. RSC Adv 2016. [DOI: 10.1039/c6ra14085h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Here we demonstrate the synthesis of aligned CoNi alloy nanobundles via a gamma irradiation induced technique with the assistance of an external magnetic field for microwave absorption applications.
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Affiliation(s)
- Hongtao Zhao
- Fundamental Science on Nuclear Safety and Simulation Technology Laboratory
- Harbin Engineering University
- Harbin 150009
- China
- HIT-HAS Laboratory of High-Energy Chemistry and Interdisciplinary Science
| | - Zhigang Li
- HIT-HAS Laboratory of High-Energy Chemistry and Interdisciplinary Science
- Institute of Technical Physics
- Heilongjiang Academy of Sciences
- Harbin 150001
- China
| | - Nan Zhang
- HIT-HAS Laboratory of High-Energy Chemistry and Interdisciplinary Science
- Institute of Technical Physics
- Heilongjiang Academy of Sciences
- Harbin 150001
- China
| | - Yunchen Du
- HIT-HAS Laboratory of High-Energy Chemistry and Interdisciplinary Science
- Institute of Technical Physics
- Heilongjiang Academy of Sciences
- Harbin 150001
- China
| | - Ping Xu
- HIT-HAS Laboratory of High-Energy Chemistry and Interdisciplinary Science
- Institute of Technical Physics
- Heilongjiang Academy of Sciences
- Harbin 150001
- China
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Pandian CJ, Palanivel R, Dhananasekaran S. Green synthesis of nickel nanoparticles using Ocimum sanctum and their application in dye and pollutant adsorption. Chin J Chem Eng 2015. [DOI: 10.1016/j.cjche.2015.05.012] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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