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Badi N, Roy AS, Al-Aoh HA, Motawea MS, Alghamdi SA, M Alsharari A, Albaqami AS, Ignatiev A. Enhanced and Proficient Soft Template Array of Polyaniline-TiO 2 Nanocomposites Fibers Prepared Using Anionic Surfactant for Fuel Cell Hydrogen Storage. Polymers (Basel) 2023; 15:4186. [PMID: 37896429 PMCID: PMC10610601 DOI: 10.3390/polym15204186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 10/29/2023] Open
Abstract
Porous TiO2-doped polyaniline and polyaniline nanocomposite fibers prepared by the in situ polymerization technique using anionic surfactant in an ice bath were studied. The prepared nanocomposites were characterized by FTIR spectroscopy and XRD patterns for structural analysis. The surface morphology of the polyaniline and its nanocomposites was examined using SEM images. DC conductivity shows the three levels of conductivity inherent in a semiconductor. Among the nanocomposites, the maximum DC conductivity is 5.6 S/cm for 3 wt.% polyaniline-TiO2 nanocomposite. Cyclic voltammetry shows the properties of PANI due to the redox peaks of 0.93 V and 0.24 V. Both peaks are due to the redox transition of PANI from the semiconductor to the conductive state. The hydrogen absorption capacity is approximately 4.5 wt.%, but at 60 °C the capacity doubles to approximately 7.3 wt.%. Conversely, 3 wt.% PANI-TiO2 nanocomposites have a high absorption capacity of 10.4 wt.% compared to other nanocomposites. An overall desorption capacity of 10.4 wt.% reduced to 96% was found for 3 wt.% TiO2-doped PANI nanocomposites.
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Affiliation(s)
- Nacer Badi
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
- Renewable Energy and Environmental Technologies Research Center, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Aashis S Roy
- Department of Chemistry, S.S. Tegnoor Degree College, Gubbi Colony, Kalaburagi 585105, Karnataka, India
| | - Hatem A Al-Aoh
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Mohamed S Motawea
- Department of Chemistry, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Saleh A Alghamdi
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Abdulrhman M Alsharari
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Abdulrahman S Albaqami
- Department of Physics, Faculty of Science, University of Tabuk, Tabuk 71491, Saudi Arabia
| | - Alex Ignatiev
- Department of Physics, University of Houston, Houston, TX 77204-5004, USA
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Gaweł M, Domalik-Pyzik P, Douglas TEL, Reczyńska-Kolman K, Pamuła E, Pielichowska K. The Effect of Chitosan on Physicochemical Properties of Whey Protein Isolate Scaffolds for Tissue Engineering Applications. Polymers (Basel) 2023; 15:3867. [PMID: 37835916 PMCID: PMC10575415 DOI: 10.3390/polym15193867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 09/13/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
New scaffolds, based on whey protein isolate (WPI) and chitosan (CS), have been proposed and investigated as possible materials for use in osteochondral tissue repair. Two types of WPI-based hydrogels modified by CS were prepared: CS powder was incorporated into WPI in either dissolved or suspended powder form. The optimal chemical composition of the resulting WPI/CS hydrogels was chosen based on the morphology, structural properties, chemical stability, swelling ratio, wettability, mechanical properties, bioactivity, and cytotoxicity evaluation. The hydrogels with CS incorporated in powder form exhibited superior mechanical properties and higher porosity, whereas those with CS incorporated after dissolution showed enhanced wettability, which decreased with increasing CS content. The introduction of CS powder into the WPI matrix promoted apatite formation, as confirmed by energy dispersive spectroscopy (EDS) and Fourier transform infrared spectroscopy (FTIR) analyses. In vitro cytotoxicity results confirmed the cytocompatibility of CS powder modified WPI hydrogels, suggesting their suitability as cell scaffolds. These findings demonstrate the promising potential of WPI/CS scaffolds for osteochondral tissue repair.
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Affiliation(s)
- Martyna Gaweł
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, 30-059 Kraków, Poland; (M.G.); (P.D.-P.); (K.R.-K.); (E.P.)
| | - Patrycja Domalik-Pyzik
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, 30-059 Kraków, Poland; (M.G.); (P.D.-P.); (K.R.-K.); (E.P.)
| | | | - Katarzyna Reczyńska-Kolman
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, 30-059 Kraków, Poland; (M.G.); (P.D.-P.); (K.R.-K.); (E.P.)
| | - Elżbieta Pamuła
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, 30-059 Kraków, Poland; (M.G.); (P.D.-P.); (K.R.-K.); (E.P.)
| | - Kinga Pielichowska
- Department of Biomaterials and Composites, Faculty of Materials Science and Ceramics, AGH University of Krakow, 30-059 Kraków, Poland; (M.G.); (P.D.-P.); (K.R.-K.); (E.P.)
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Ahmad I, Abbasi A, El Bahy ZM, Ikram S. Synergistic effect of silver NPs immobilized on Fe 3O 4@L-proline magnetic nanocomposite toward the photocatalytic degradation of Victoria blue and reduction of organic pollutants. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27837-x. [PMID: 37278899 DOI: 10.1007/s11356-023-27837-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/18/2023] [Indexed: 06/07/2023]
Abstract
The surface of magnetite (Fe3O4) nanoparticles was subject to modification through the incorporation of L-proline (LP) by simple co-precipitation method in which silver nanoparticles were deposited by in situ method, thereby yielding the Fe3O4@LP-Ag nanocatalyst. The fabricated nanocatalyst was characterized using an array of techniques including Fourier-transform infrared (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), vibrating sample magnetometry (VSM), Brunauer-Emmett-Teller (BET), and UV-Vis spectroscopy. The results evince that the immobilization of LP on the Fe3O4 magnetic support facilitated the dispersion and stabilization of Ag NPs. The SPION@LP-Ag nanophotocatalyst exhibited exceptional catalytic efficiency facilitating the reduction of MO, MB, p-NP, p-NA, NB, and CR in the presence of NaBH4. The rate constants obtained from the pseudo-first-order equation were 0.78, 0.41, 0.34, 0.27, 0.45, 0.44, and 0.34 min-1 for CR, p-NP, NB, MB, MO, and p-NA, respectively. Additionally, the Langmuir-Hinshelwood model was deemed the most probable mechanism for catalytic reduction. The novelty of this study lies in the use of L-proline immobilized on Fe3O4 MNPs as a stabilizing agent for the in-situ deposition of silver nanoparticles, resulting in the synthesis of Fe3O4@LP-Ag nanocatalyst. This nanocatalyst exhibits high catalytic efficacy for the reduction of multiple organic pollutants and azo dyes, which can be attributed to the synergistic effects between the magnetic support and the catalytic activity of the silver nanoparticles. The easy recyclability and low cost of the Fe3O4@LP-Ag nanocatalyst further enhance its potential application in environmental remediation.
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Affiliation(s)
- Iftkhar Ahmad
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi, 110025, India
| | - Arshiya Abbasi
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi, 110025, India
| | - Zeinhom M El Bahy
- Department of Chemistry, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
| | - Saiqa Ikram
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi, 110025, India.
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El-Tantawy AI, Elmongy EI, Elsaeed SM, Abdel Aleem AAH, Binsuwaidan R, Eisa WH, Salman AU, Elharony NE, Attia NF. Synthesis, Characterization, and Docking Study of Novel Thioureidophosphonate-Incorporated Silver Nanocomposites as Potent Antibacterial Agents. Pharmaceutics 2023; 15:1666. [PMID: 37376114 DOI: 10.3390/pharmaceutics15061666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 05/27/2023] [Accepted: 05/31/2023] [Indexed: 06/29/2023] Open
Abstract
Newly synthesized mono- and bis-thioureidophosphonate (MTP and BTP) analogues in eco-friendly conditions were employed as reducing/capping cores for 100, 500, and 1000 mg L-1 of silver nitrate. The physicochemical properties of silver nanocomposites (MTP(BTP)/Ag NCs) were fully elucidated using spectroscopic and microscopic tools. The antibacterial activity of the nanocomposites was screened against six multidrug-resistant pathogenic strains, comparable to ampicillin and ciprofloxacin commercial drugs. The antibacterial performance of BTP was more substantial than MTP, notably with the best minimum inhibitory concentration (MIC) of 0.0781 mg/mL towards Bacillus subtilis, Salmonella typhi, and Pseudomonas aeruginosa. Among all, BTP provided the clearest zone of inhibition (ZOI) of 35 ± 1.00 mm against Salmonella typhi. After the dispersion of silver nanoparticles (AgNPs), MTP/Ag NCs offered dose-dependently distinct advantages over the same nanoparticle with BTP; a more noteworthy decline by 4098 × MIC to 0.1525 × 10-3 mg/mL was recorded for MTP/Ag-1000 against Pseudomonas aeruginosa over BTP/Ag-1000. Towards methicillin-resistant Staphylococcus aureus (MRSA), the as-prepared MTP(BTP)/Ag-1000 displayed superior bactericidal ability in 8 h. Because of the anionic surface of MTP(BTP)/Ag-1000, they could effectively resist MRSA (ATCC-43300) attachment, achieving higher antifouling rates of 42.2 and 34.4% at most optimum dose (5 mg/mL), respectively. The tunable surface work function between MTP and AgNPs promoted the antibiofilm activity of MTP/Ag-1000 by 1.7 fold over BTP/Ag-1000. Lastly, the molecular docking studies affirmed the eminent binding affinity of BTP over MTP-besides the improved binding energy of MTP/Ag NC by 37.8%-towards B. subtilis-2FQT protein. Overall, this study indicates the immense potential of TP/Ag NCs as promising nanoscale antibacterial candidates.
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Affiliation(s)
- Ahmed I El-Tantawy
- Department of Chemistry, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Elshaymaa I Elmongy
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Shimaa M Elsaeed
- Department of Analysis and Evaluation, Egyptian Petroleum Research Institute, Cairo 11727, Egypt
| | | | - Reem Binsuwaidan
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
| | - Wael H Eisa
- Spectroscopy Department, Physics Division, National Research Centre (NRC), Cairo 12622, Egypt
| | - Ayah Usama Salman
- Department of Botany and Microbiology, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Noura Elsayed Elharony
- Department of Chemistry, Faculty of Science, Menoufia University, Shibin El Kom 32511, Egypt
| | - Nour F Attia
- Gas Analysis and Fire Safety Laboratory, Chemistry Division, National Institute for Standards, 136, Giza 12211, Egypt
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Hosseinzadeh R, Mavvaji M, Moradi I. Synthesis and Characterization of Fe3O4@SiO2@MgAl-LDH@Au.Pd as an Efficient and Magnetically Recyclable Catalyst for Reduction of 4-Nitrophenol and Suzuki Coupling Reactions. ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING 2023. [DOI: 10.1007/s13369-022-07543-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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6
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Ahmad I, Aalam G, Amir M, Chakravarty A, Ali SW, Ikram S. Development of highly efficient magnetically recyclable Cu 2+/Cu 0 nano-photocatalyst and its enhanced catalytic performance for the degradation of organic contaminations. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 846:157154. [PMID: 35803433 DOI: 10.1016/j.scitotenv.2022.157154] [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: 04/06/2022] [Revised: 06/23/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
This work reports the successful functionalization of l-proline on the surface of superparamagnetic iron oxide nanoparticles (SPION) synthesized via a simple, cost-effective hydrothermal method. Moreover, the chemical attachment of Cu2+/Cu0 nanoparticles on the surface of SPION@l-proline was done by an in-situ deposition method. The developed nano-photocatalyst was characterized in detail by XRD, FT-IR, XPS, FE-SEM, TEM, EDX, BET, TGA, and VSM. XRD of SPION@l-proline-Cu reveals peaks of both SPION and copper nanoparticles which confirms the formation of nanophotocatalyst. TGA demonstrates a major weight loss between 250 and 310 °C due to l-proline which ensures the successful immobilization of SPION on the surface of l-proline. The band energy at 932 eV suggests a complete reduction of Cu2+ ion to Cu0 metal on the surface of SPION@l-proline nanocomposite as confirmed by the XPS technique. Under UV light irradiation, the photocatalytic reduction performance of the developed Cu2+ metal ion-based and Cu0 nanoparticle-based magnetic nano-photocatalysts was demonstrated and compared for the first time for the photocatalytic reduction of 4-NP, 4-NA, NB, MO, MB, and CR. The results show that Cu0-based magnetic nanophotocatalyst has slightly enhanced catalytic activity. Furthermore, solar-driven photocatalytic degradation of CR azo dye by synthesized nano-photocatalyst was also investigated, with a 95 % degradation efficiency in just 40 min. The developed magnetic nano-photocatalyst can easily be separated by using an external magnet due to the superparamagnetic nature of core material (SPION) at room temperature as confirmed from VSM and can be reused for multiple cycles without losing considerable catalytic activity. Because of its high photocatalytic efficiency, cost-effectiveness, good magnetic separation performance, non-toxicity, and strong thermal and chemical stabilities, Cu2+/Cu0-based magnetic nano-photocatalyst has potential application in wastewater treatment.
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Affiliation(s)
- Iftkhar Ahmad
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi 110025, India
| | - Gulshitab Aalam
- School of Interdisciplinary Research, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Md Amir
- Centre for Sensors, Instrumentation, and Cyber-physical System Engineering (SeNSE), Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Archana Chakravarty
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi 110025, India
| | - Syed Wazed Ali
- Department of Textile & Fibre Engineering, Indian Institute of Technology Delhi, Hauz Khas, New Delhi 110016, India
| | - Saiqa Ikram
- Bio/Polymer Research Laboratory, Department of Chemistry, Jamia Millia Islamia University, New Delhi 110025, India.
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Vimala V, Cindrella L. Binder-free Polymer Material Embedded in Chitosan Matrix for Electrochemical Energy Storage Devices. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.140172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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8
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Facile Synthesis of L-Tryptophan Functionalized Magnetic Nanophotocatalyst Supported by Copper Nanoparticles for Selective Reduction of Organic Pollutants and Degradation of Azo Dyes. Catal Letters 2022. [DOI: 10.1007/s10562-022-04182-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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9
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Triphenylamine-based conjugated microporous polymers as dye adsorbents and supercapacitors. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104310] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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10
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Iron-Oxide-Nanoparticles-Doped Polyaniline Composite Thin Films. Polymers (Basel) 2022; 14:polym14091821. [PMID: 35566991 PMCID: PMC9100357 DOI: 10.3390/polym14091821] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 04/21/2022] [Accepted: 04/26/2022] [Indexed: 11/17/2022] Open
Abstract
Iron-oxide-doped polyaniline (PANI-IO) thin films were obtained by the polymerization of aniline monomers and iron oxide solutions in direct current glow discharge plasma in the absence of a buffer gas for the first time. The PANI-IO thin films were deposited on optical polished Si wafers in order to study surface morphology and evaluate their in vitro biocompatibility. The characterization of the coatings was accomplished using scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FTIR), atomic force microscopy (AFM), metallographic microscopy (MM), and X-ray photoelectron spectroscopy (XPS). In vitro biocompatibility assessments were also conducted on the PANI-IO thin films. It was observed that a uniform distribution of iron oxide particles inside the PANI layers was obtained. The constituent elements of the coatings were uniformly distributed. The Fe-O bonds were associated with magnetite in the XPS studies. The surface morphology of the PANI-IO thin films was assessed by atomic force microscopy (AFM). The AFM topographies revealed that PANI-IO exhibited the morphology of a uniformly distributed and continuous layer. The viability of Caco-2 cells cultured on the Si substrate and PANI-IO coating was not significantly modified compared to control cells. Moreover, after 24 h of incubation, we observed no increase in LDH activity in media in comparison to the control. In addition, our results revealed that the NO levels for the Si substrate and PANI-IO coating were similar to those found in the control sample.
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Zare N, Kojoori RK, Abdolmohammadi S, Sadegh‐Samiei S. Ultrasonic-assisted synthesis of highly effective visible light Fe3O4/ZnO/PANI nanocomposite: Thoroughly kinetics and thermodynamic investigations on the Congo red dye decomposition. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.131903] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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Parthiban E, Kalaivasan N, Sudarsan S. Facile Fabrication of Magnetic Nanocomposite Based on the Itaconic Acid-Polyaniline Functional Modification. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02139-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Salahuddin N, Ali M, Al-Lohedan HA, Issa ZA, Barakat A, Ayad MM. Aniline- co- o-anthranilic Acid Copolymer-Chitosan/Ag@AgCl Nanohybrid as a Carrier for ( E)- N'-(Pyridin-2-ylmethylene) Hydrazinecarbothiohydrazide Release and Antimicrobial Activity. ACS OMEGA 2021; 6:21939-21951. [PMID: 34497889 PMCID: PMC8412903 DOI: 10.1021/acsomega.1c02212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 07/15/2021] [Indexed: 06/13/2023]
Abstract
Poly(aniline-co-o-anthranilic acid)-chitosan/silver@silver chloride (PAAN-CS/Ag@AgCl) nanohybrids were synthesized using different ratios of Ag@AgCl through a facile one-step process. The presence of CS led to the formation of the nanohybrid structure and prevented the aggregation of the copolymer efficiently. The synthesized nanohybrids were fully characterized by transmission electron microscopy, X-ray diffraction, Fourier transform infrared (FTIR) spectroscopy, and thermogravimetric analysis. (E)-N'-(Pyridin-2-ylmethylene) hydrazinecarbothiohydrazide I was prepared using thiosemicarbazide and confirmed by 1H-NMR, 13C-NMR, and FTIR analyses. Loading of the azine derivative I using various concentrations at different pH values onto the nanohybrid was followed by UV-vis spectroscopy. Langmuir and Freundlich adsorption isotherm models were used to describe the equilibrium isotherm, and the adsorption followed the Langmuir adsorption isotherm. A pseudo-second-order model was used to describe the kinetic data. A PAAN-CS/Ag@AgCl nanohybrid loaded with azine I interestingly showed efficient antimicrobial activity against Escherichia coli and Staphylococcus aureus more than the azine derivative I. The release of azine I at different pH values (2-7.4) was investigated and the kinetics of release were studied using zero-order, first-order, second-order, Higuchi, Hixson-Crowell, and Korsmeyer-Peppas equations.
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Affiliation(s)
- Nehal
A. Salahuddin
- Chemistry
Department, Faculty of Science, Polymer Research Group, Tanta University, Tanta 31527, Egypt
| | - M. Ali
- Chemistry
Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
| | - Hamad A. Al-Lohedan
- Surfactants
Research Chair, Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Zuheir A. Issa
- Surfactants
Research Chair, Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Assem Barakat
- Department
of Chemistry, Faculty of Science, Alexandria
University, P.O. Box 426, Ibrahimia, Alexandria 21321, Egypt
| | - Mohamad M. Ayad
- Chemistry
Department, Faculty of Science, Tanta University, Tanta 31527, Egypt
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Elumalai P, Shanmugavel S. Performance of copper oxide nanoparticles treated polyaniline-itaconic acid based magnetic sensitive polymeric nanocomposites for the removal of chromium ion from industrial wastewater. POLYM-PLAST TECH MAT 2021. [DOI: 10.1080/25740881.2021.1942490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
| | - Sudarsan Shanmugavel
- Department of Chemistry, C. Abdul Hakeem College of Engineering and Technology, Melvisharam, India
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Thanh CT, Binh NH, Duoc PND, Thu VT, Van Trinh P, Anh NN, Van Tu N, Tuyen NV, Van Quynh N, Tu VC, Thao BTP, Thang PD, Abe H, Van Chuc N. Electrochemical Sensor Based on Reduced Graphene Oxide/Double-Walled Carbon Nanotubes/Octahedral Fe 3O 4/Chitosan Composite for Glyphosate Detection. BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 2021; 106:1017-1023. [PMID: 33743019 DOI: 10.1007/s00128-021-03179-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Accepted: 03/08/2021] [Indexed: 06/12/2023]
Abstract
In this work, reduced graphene oxide/double-walled carbon nanotubes/octahedral-Fe3O4/chitosan composite material modified screen-printed gold electrodes (rGO/DWCNTs/Oct-Fe3O4/Cs/SPAuE) under inhibition of urease enzyme was developed for the determination of glyphosate (GLY). The electrochemical behaviors of GLY on these electrodes were evaluated by square wave voltammetry (SWV). With the electroactive surface area is 1.7 times higher than that of bare SPAuE, the rGO/DWCNTs/Oct-Fe3O4/Cs/SPAuE for detection of GLY shows a low detection limit (LOD) of ~ 0.08 ppb in a large concentration range of 0.1-1000 ppb. Moreover, it is also successfully applied to the determination of GLY in river water samples with recoveries and relative standard deviations (RSDs) from 98.7% to 106.9% and from 0.79% to 0.87%, respectively. The developed composite will probably provide an universal electrochemical sensing platform that is very promising for environmental monitoring.
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Affiliation(s)
- Cao Thi Thanh
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Hai Binh
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Phan Nguyen Duc Duoc
- VNU-University of Engineering and Technology, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
- Department of Physics, Nha Trang University, 02 Nguyen Dinh Chieu, Nha Trang, Vietnam
| | - Vu Thi Thu
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Pham Van Trinh
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Ngoc Anh
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Van Tu
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Nguyen Viet Tuyen
- Faculty of Physics, VNU University of Science, Vietnam National University, Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam
| | - Nguyen Van Quynh
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Vu Cam Tu
- University of Science and Technology of Hanoi, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | | | - Pham Duc Thang
- VNU-University of Engineering and Technology, 144 Xuan Thuy, Cau Giay, Hanoi, Vietnam
| | - Hiroya Abe
- Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka, 567-0047, Japan.
| | - Nguyen Van Chuc
- Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam.
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17
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Bano S, Ganie AS, Sultana S, Khan MZ, Sabir S. The non-enzymatic electrochemical detection of glucose and ammonia using ternary biopolymer based-nanocomposites. NEW J CHEM 2021. [DOI: 10.1039/d1nj00474c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Novel biopolymer-based nanocomposites exhibit significant electrocatalytic activity towards glucose and aqueous ammonia detection with high sensitivity and low detection limits.
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Affiliation(s)
- Sayfa Bano
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Adil Shafi Ganie
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Saima Sultana
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Mohammad Zain Khan
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
| | - Suhail Sabir
- Environmental Research Laboratory
- Department of Chemistry
- Aligarh Muslim University
- Aligarh 202 002
- India
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18
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Kazemi F, Naghib SM, Zare Y, Rhee KY. Biosensing Applications of Polyaniline (PANI)-Based Nanocomposites: A Review. POLYM REV 2020. [DOI: 10.1080/15583724.2020.1858871] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Fatemeh Kazemi
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Seyed Morteza Naghib
- Nanotechnology Department, School of Advanced Technologies, Iran University of Science and Technology (IUST), Tehran, Iran
| | - Yasser Zare
- Biomaterials and Tissue Engineering Research Group, Department of Interdisciplinary Technologies, Breast Cancer Research Center, Motamed Cancer Institute, ACECR, Tehran, Iran
| | - Kyong Yop Rhee
- Department of Mechanical Engineering, College of Engineering, Kyung Hee University, Yongin, Republic of Korea
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19
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Elkady M, Salama E, Amer WA, Ebeid EZM, Ayad MM, Shokry H. Novel eco-friendly electrospun nanomagnetic zinc oxide hybridized PVA/alginate/chitosan nanofibers for enhanced phenol decontamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:43077-43092. [PMID: 32729039 DOI: 10.1007/s11356-020-10247-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/21/2020] [Indexed: 06/11/2023]
Abstract
In the current study, poly(vinyl alcohol)/alginate/chitosan (PVA/Alg/CS) composite nanofiber was immobilized with six different ratios of nanomagnetic zinc oxide (M-ZnO) (0 wt%, 0.2 wt%, 0.4 wt%, 0.6 wt%, 0.8 wt%, and 1 wt%) via the electrospinning technique. The various fabricated composite (M-6) nanofibers were characterized using Fourier transform infrared (FTIR), X-ray diffractometer (XRD), vibrating sample magnetometer (VSM), scanning electron microscope (SEM), atomic force microscope (AFM), thermogravimetric analysis (TGA), mechanical testing machine, and optical contact angle measurement. The fabricated composite nanofibers were applied for the adsorption of phenol from aqueous solutions. The 1.0 wt% M-ZnO/PVA/Alg/CS composite nanofibers were selected as the best phenol adsorbent with removal percentage of 84.22%. The influence of different processing parameter such as contact time, composite nanofiber dosage, pH, initial pollutant concentration, and temperature were examined. Increasing nanofiber dosage and the solution temperature was found to enhance the phenol adsorption onto the prepared nanocomposites. The maximum percentage of phenol removal was achieved at 84.22% after 90 min. Meanwhile, the maximum monolayer adsorption capacity (at pH = 5.0) was estimated to be 10.03 mg g-1 at 25 °C. Kinetic, isotherm, and thermodynamic studies were designated to proof the endothermic, spontaneous, and thermodynamically nature of the phenol adsorption process. These outcomes indicate the effectiveness of the fabricated M-ZnO/PVA/Alg/CS nanofibers as adsorbent materials for phenol from aqueous solutions.
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Affiliation(s)
- Marwa Elkady
- Fabrication Technology Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt
- Chemical and Petrochemical Engineering Department, Egypt-Japan University of Science and Technology (E-JUST), New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Eslam Salama
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
- Environment and Natural Materials Research Institute (ENMRI), City of Scientific Research and Technological Applications, New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Wael A Amer
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - El-Zeiny M Ebeid
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
| | - Mohamad M Ayad
- Chemistry Department, Faculty of Science, Tanta University, Tanta, 31527, Egypt
- Institute of Basic and Applied Sciences, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, 21934, Egypt
| | - Hassan Shokry
- Electronic Materials Research Department, Advanced Technology and New Materials Research Institute (ATNMRI), City of Scientific Research and Technological Applications (SRTA-City), New Borg El-Arab City, Alexandria, 21934, Egypt.
- Environmental Engineering Department, Egypt-Japan University of Science and Technology, New Borg El-Arab City, Alexandria, 21934, Egypt.
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20
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Balitaan JNI, Martin GAV, Santiago KS. Revamping squid gladii to biodegradable composites: In situ grafting of polyaniline to β-chitin and their antibacterial activity. J BIOACT COMPAT POL 2020. [DOI: 10.1177/0883911520973239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The global health concern on wound care is becoming more challenging with the emerging prevalence of inexorable antibiotic resistance. Amidst this crisis, various material innovations have been made to combat this dilemma. Herein, squid pens, which are regarded as discards in the seafood industry, were biorefined into β-chitin-graft-polyaniline (β-chitin-g-PANI) composites for possible wound dressing development. β-chitin was first chemically extracted from gladii, and was then grafted with PANI via in situ chemical oxidative polymerization of various concentrations of aniline, to produce the β-chitin-g-PANI composites. Supporting data from FTIR, UV-Vis, SEM, TGA, and DSC suggest that β-chitin was successfully grafted with PANI. Moreover, improved conductivity and in vitro degradation of the composites were observed as compared to β-chitin and PANI alone, respectively. Zones of inhibition observed from agar diffusion method suggest that the synthesized composites have antibacterial activity against E. coli and S. aureus. The resulting physicochemical and biological properties of integrating conducting PANI to β-chitin substantiated and rendered the β-chitin-g-PANI composites desirable candidates for the development wound care products.
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Affiliation(s)
- Jolleen Natalie I Balitaan
- The Graduate School, University of Santo Tomas, Manila, Philippines
- Department of Chemistry, College of Science, University of Santo Tomas, Manila, Philippines
| | - Gloricel Anne V Martin
- Department of Chemistry, College of Science, University of Santo Tomas, Manila, Philippines
| | - Karen S Santiago
- The Graduate School, University of Santo Tomas, Manila, Philippines
- Department of Chemistry, College of Science, University of Santo Tomas, Manila, Philippines
- Research Center for Natural and Applied Sciences, University of Santo Tomas, Manila, Philippines
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21
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Determination of cysteine via its inhibition of catalytic activity of silver coated ZnO/Fe3O4 composites used for conversion of 4-nitrophenol into 4-aminophenol. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104976] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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22
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Parthiban E, Kalaivasan N, Sudarsan S. Dual Responsive (pH and Magnetic) Nanocomposites Based on Fe3O4@Polyaniline/Itaconic Acid: Synthesis, Characterization and Removal of Toxic Hexavalent Chromium from Tannery Wastewater. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01602-w] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Al-saida B, Amer WA, Kandyel EE, Ayad MM. Enhanced dual catalytic activities of silver-polyaniline/titanium dioxide magnetic nanocomposite. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2020.112423] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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24
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Parthiban E, Kalaivasan N, Sudarsan S. A study of magnetic, antibacterial and antifungal behaviour of a novel gold anchor of polyaniline/itaconic acid/Fe3O4 hybrid nanocomposite: Synthesis and characterization. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2019.12.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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25
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Deshmukh S, Dhodamani AG, Patil SM, Mullani SB, More KV, Delekar SD. Interfacially Interactive Ternary Silver-Supported Polyaniline/Multiwalled Carbon Nanotube Nanocomposites for Catalytic and Antibacterial Activity. ACS OMEGA 2020; 5:219-227. [PMID: 31956768 PMCID: PMC6963897 DOI: 10.1021/acsomega.9b02526] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Accepted: 11/01/2019] [Indexed: 06/10/2023]
Abstract
Herein, a protocol strategy has been designed for the preparation of ternary silver nanoparticles-supported polyaniline multiwalled carbon nanotube (Ag NPs-PANI/MWCNT) nanocomposites with a chemical interaction for catalytic and antibacterial activity. The morphological study confirmed that Ag NPs were immobilized on the surface of PANI, and afterward, Ag NPs-PANI were mixed with the MWCNTs. The X-ray diffraction technique revealed the face-centered cubic structure of Ag NPs, and the X-ray photoelectron spectroscopy study revealed the chemical constituent and signature of π-π* and C-N interactions in the nanocomposites. The ternary Ag NPs-PANI/MWCNTs nanocomposites have the apparent rate of reaction (K app) as 5.4 × 10-3 s-1, higher than binary nanocomposites for catalytic reduction of 4-nitrophenol to 4-aminophenol at room temperature. Antibacterial activity of Ag NPs-PANI/MWCNT nanocomposites is higher against pathogenic bacteria. Thereafter, because of multifold applications of ternary nanocomposites, they have a broad scope in the field of environmental and healthcare sectors.
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Affiliation(s)
- Shamkumar
P. Deshmukh
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
- Department
of Chemistry, D. B. F. Dayanand College
of Arts and Science, Solapur 413 001, Maharashtra, India
| | - Ananta G. Dhodamani
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
| | - Satish M. Patil
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
- Department
of Chemistry, Karmaveer Hire Arts, Science,
Commerce and Education College, Gargoti, Kolhapur 416
209, Maharashtra, India
| | - Sajid B. Mullani
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
| | - Krantiveer V. More
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
| | - Sagar D. Delekar
- Department
of Chemistry, Shivaji University, Kolhapur 416 001, Maharashtra, India
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26
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Chen A, Wang A, Zhu W, Qian Y, Jiang Z. Efficient catalytic activity of BiOBr@polyaniline-MnO2ternary nanocomposites for sunlight-driven photodegradation of ciprofloxacin. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112126] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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27
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28
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One step synthesis of AgClNPs/PANI/D-dextrose nanocomposite by interfacial polymerization method and its catalytic and photocatalytic applications. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.03.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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29
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Antony R, Marimuthu R, Murugavel R. Bimetallic Nanoparticles Anchored on Core-Shell Support as an Easily Recoverable and Reusable Catalytic System for Efficient Nitroarene Reduction. ACS OMEGA 2019; 4:9241-9250. [PMID: 31460014 PMCID: PMC6648521 DOI: 10.1021/acsomega.9b01023] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Accepted: 05/16/2019] [Indexed: 05/05/2023]
Abstract
We report an easily recoverable and reusable versatile magnetic catalyst (Fe3O4@CS_AgNi, where CS = chitosan) for organic reduction reactions. The catalytic system is prepared by dispersing AgNi bimetallic nanoparticles on the magnetite core-shell (Fe3O4@CS). The as-synthesized catalyst has been characterized by spectroscopic techniques, such as IR, UV-vis, and X-ray photoelectron spectroscopy (XPS), and analytical tools, such as thermogravimetric analysis, powder X-ray diffraction, Brunauer-Emmett-Teller adsorption, FEG-scanning electron microscopy, high-resolution transmission electron microscopy (HR-TEM), inductively coupled plasma-atomic emission spectroscopy, and magnetic measurements. HR-TEM studies indicate the core-shell structure of Fe3O4@CS and confirm the presence of AgNi nanoparticles on the surface of Fe3O4@CS spheres. IR spectral and XPS studies lend evidence for the occurrence of a strong chemical interaction between the amino groups of CS and AgNi nanoparticles. The nano-catalyst Fe3O4@CS_AgNi rapidly reduces p-nitrophenol to p-aminophenol using NaBH4 as the reductant within a few minutes under ambient conditions (as monitored by UV-visible spectroscopy). The utility of this catalytic system has also been extended to the reduction of other nitroarenes. A strong interaction between Fe3O4@CS and AgNi nanoparticles impedes the leaching of AgNi nanoparticles from the core-shell support, leading to excellent reusability of the catalyst.
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Affiliation(s)
| | - Rajendiran Marimuthu
- Organometallics and Materials Chemistry
Lab, Department of Chemistry, Indian Institute
of Technology Bombay, Mumbai 400076, India
| | - Ramaswamy Murugavel
- Organometallics and Materials Chemistry
Lab, Department of Chemistry, Indian Institute
of Technology Bombay, Mumbai 400076, India
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30
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Zhang K, Suh JM, Choi JW, Jang HW, Shokouhimehr M, Varma RS. Recent Advances in the Nanocatalysts-assisted NaBH 4 Reduction of Nitroaromatics in water. ACS OMEGA 2019; 4:483-495. [PMID: 31032469 PMCID: PMC6483110 DOI: 10.1021/acsomega.8b03051] [Citation(s) in RCA: 113] [Impact Index Per Article: 22.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 12/24/2018] [Indexed: 05/20/2023]
Abstract
In view of the increasing applications of nanocatalysis in chemical transformations, this article illustrates recent advances on the use of nanocatalysts for an important reduction reaction, the hydrogenation of nitroaromatics to significant aminoaromatics with aqueous NaBH4 solution; the utility of mono- and multi-metal nanocatalysts with special emphasis on heterogeneous nanocatalysts are included. A progressive trend on the applicability of nanocatalysts is also incorporated with large scale application and their sustainable recyclization and reuse utilizing supported and magnetic nanocatalysts; representative methods for the synthesis of such reusable nanocatalysts are featured.
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Affiliation(s)
- Kaiqiang Zhang
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
- Electronic
Materials Center, Korea Institute of Science
and Technology (KIST), Seoul 136-791, Republic of Korea
| | - Jun Min Suh
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji-Won Choi
- Electronic
Materials Center, Korea Institute of Science
and Technology (KIST), Seoul 136-791, Republic of Korea
| | - Ho Won Jang
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
- E-mail: (H.W.J.)
| | - Mohammadreza Shokouhimehr
- Department
of Materials Science and Engineering, Research Institute of Advanced
Materials, Seoul National University, Seoul 08826, Republic of Korea
- E-mail: (M.S.)
| | - Rajender S. Varma
- Regional
Center of Advanced Technologies and Materials, Department of Physical
Chemistry, Faculty of Science, Palacky University, Šlechtitelů 27, 783 71 Olomouc, Czech Republic
- Water
Resources Recovery Branch, Water Systems Division, National Risk Management
Research Laboratory, US Environmental Protection
Agency, Cincinnati, Ohio 45268, United
States
- E-mail: (R.S.V.)
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31
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Amer WA, Al-saida B, Ayad M. Rational design of a polypyrrole-based competent bifunctional magnetic nanocatalyst. RSC Adv 2019; 9:18245-18255. [PMID: 35515252 PMCID: PMC9064774 DOI: 10.1039/c9ra02544h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 06/04/2019] [Indexed: 12/30/2022] Open
Abstract
The combination of conducting polymers with semiconductors for the fabrication of organic/inorganic hybrid nanocatalysts is one of the most promising research areas for many applications. In this work, the synthesized nanocomposite combines several advantages such as the photoresponse shift from the UV region toward visible light by narrowing the band gap of the semiconductor, magnetic separation ability and dual applications including the catalytic reduction of p-nitrophenol (PNP) and the photocatalytic degradation of methylene blue (MB) dye. In addition to the core magnetite nanoparticles (NPs), the synthesized nanocomposite contains polypyrrole (PPY) and TiO2 shells that are decorated with silver metal NPs to prevent electron–hole recombination and to enhance the catalytic performance. Indeed, the catalytic PNP reduction experiments reveal that the synthesized nanocomposite exhibits significantly high catalytic activity with a rate constant of 0.1169 min−1. Moreover, the photocatalytic experiments show that the synthesized nanophotocatalyst has a boosting effect toward MB dye degradation under normal daytime visible light irradiation with a rate constant of 6.38 × 10−2 min−1. The synergetic effect between silver NPs, PPY and TiO2 is thought to play a fundamental role in enhancing the photocatalytic activity. An efficient method to synthesize a magnetic nanocomposite with dual catalytic activities with a synergetic effect between Ag nanoparticles, polypyrrole and TiO2 is described.![]()
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Affiliation(s)
- Wael A. Amer
- Chemistry Department
- Faculty of Science
- Tanta University
- Tanta 31527
- Egypt
| | - Basel Al-saida
- Chemistry Department
- Faculty of Science
- Tanta University
- Tanta 31527
- Egypt
| | - Mohamad M. Ayad
- Chemistry Department
- Faculty of Science
- Tanta University
- Tanta 31527
- Egypt
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32
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Rangraz Y, Nemati F, Elhampour A. Magnetic chitosan composite as a green support for anchoring diphenyl diselenide as a biocatalyst for the oxidation of sulfides. Int J Biol Macromol 2018; 117:820-830. [DOI: 10.1016/j.ijbiomac.2018.05.207] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/23/2018] [Accepted: 05/27/2018] [Indexed: 12/23/2022]
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33
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Dolatkhah A, Jani P, Wilson LD. Redox-Responsive Polymer Template as an Advanced Multifunctional Catalyst Support for Silver Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:10560-10568. [PMID: 30114920 DOI: 10.1021/acs.langmuir.8b02336] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Hybridization of metal nanoparticles (NPs) with redox-switchable polymer supports not only mitigates their aggregation, but also introduces interfacial electron pathways desirable for catalysis and numerous other applications. The large surface area and surface accessible atoms for noble metal nanoparticles (e.g., Ag, Au, Pt) offer promising opportunities to address challenges in catalysis and environmental remediation. Herein, AgNPs were supported onto redox-switchable polyaniline that acts as an advanced multifunctional conducting template for enhanced catalytic activity. At the initial stage of reduction of Ag+, leucoemeraldine is oxidized in situ to pernigraniline (PG), which acts as interfacial pathway between NPs for electron transport. With the contribution of BH4-, PG acts as an electron-acceptor site, which creates interfacial electron-hole pairs, serving as additional active catalytic reduction sites. The use of a redox-responsive composite system as a template enhances catalyst performance through adjustable charge injection across interfacial sites, along with catalyst reusability for the reduction of 4-nitrophenol (4-NPh). Strikingly, from X-ray photoelectron spectroscopy results it was observed that in situ reduction of Ag+ onto the conductive polymer alters the electronic character of the catalyst. The unique multielectronic effects of such Ag-supported NPs enrich the scope of such catalytic systems via a tunable interface, diversified catalytic activity, fast kinetics, minimization of AgNPs aggregation, and maintenance of high stability under multiple reaction cycles.
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Affiliation(s)
- Asghar Dolatkhah
- Department of Chemistry , University of Saskatchewan , 110 Science Place , Saskatoon , Saskatchewan S7N 5C9 , Canada
| | - Purvil Jani
- Department of Chemical Engineering , Indian Institute of Technology Gandhinagar , Palaj , Gandhinagar , Gujarat 382355 , India
| | - Lee D Wilson
- Department of Chemistry , University of Saskatchewan , 110 Science Place , Saskatoon , Saskatchewan S7N 5C9 , Canada
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34
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Liu Y, Zhang YY, Kou QW, Chen Y, Han DL, Wang DD, Lu ZY, Chen L, Yang JH, Xing S. Eco-friendly seeded Fe3O4-Ag nanocrystals: a new type of highly efficient and low cost catalyst for methylene blue reduction. RSC Adv 2018; 8:2209-2218. [PMID: 35542618 PMCID: PMC9077205 DOI: 10.1039/c7ra11348j] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Accepted: 01/03/2018] [Indexed: 12/17/2022] Open
Abstract
Hybrid Fe3O4-Ag nanocrystals, a new type of highly efficient and reusable catalyst for methylene blue (MB) reduction, are fabricated by a novel seed deposition process. X-ray diffraction and Mössbauer spectroscopy results show that the developed iron oxides are in a pure magnetite Fe3O4 phase. Upon manipulating the amount of Ag seeds capsuled on the modified surfaces of Fe3O4 nanocrystals, the catalytic capacities on the reduction of MB can be precisely adjusted with a tunable fabrication cost control. The linear correlation of the reduced MB concentration versus reaction time catalyzed by our developed hybrid Fe3O4-Ag nanocrystals is coherent with pseudo first order kinetics. Importantly, with remarkable recyclability features, the hybrid Fe3O4-Ag nanocrystals can be easily separated by applying an external magnetic field. The tailored catalytic performances of the hybrid Fe3O4-Ag nanocrystals during MB reduction are attributed to the optimized dynamic electron transfer process, which dominates the electrochemical mechanism wherein the nucleophilic BH4− ions donate electrons to electrophilic organic MB through Ag seeds in a regulated amount. Such developed hybrid Fe3O4-Ag nanocrystals pave the way towards the mass production of highly efficient and low cost catalysts for methylene blue reduction. Hybrid Fe3O4-Ag nanocrystals, a new type of highly efficient and reusable catalyst for methylene blue (MB) reduction, are fabricated by a novel seed deposition process.![]()
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Affiliation(s)
- Y. Liu
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - Y. Y. Zhang
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - Q. W. Kou
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - Y. Chen
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - D. L. Han
- School of Materials Science and Engineering
- Changchun University of Science and Technology
- Changchun 130022
- China
| | - D. D. Wang
- Technology Development Department
- GLOBALFOUNDRIES (Singapore) Pte. Ltd
- Singapore 738406
- Singapore
| | - Z. Y. Lu
- School of Environment and Safety Engineering
- Jiangsu University
- Zhenjiang 212013
- China
| | - L. Chen
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - J. H. Yang
- College of Physics
- Jilin Normal University
- Siping 136000
- China
- Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education
| | - S. Xing
- United Microelect Corp. Ltd
- Singapore 519528
- Singapore
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