1
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Rigoni F, Zappa D, Baratto C, Faglia G, Comini E. Single ZnO Nanowire for Electrical and Optical NO 2 Gas Sensing: Origin of Reversible and Irreversible Gas Effects Investigated by Photoluminescence Spectroscopy. ACS Sens 2024; 9:4646-4654. [PMID: 39259026 DOI: 10.1021/acssensors.4c00901] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/12/2024]
Abstract
In this work, the gas sensing properties of a single ZnO nanowire (NW) are investigated, simultaneously in terms of photoluminescence (PL) and photocurrent (PC) response to NO2 gas, with the purpose of giving new insights on the gas sensing mechanism of a single 1D ZnO nanostructure. A single ZnO NW sensing device was fabricated, characterized, and compared with a sample made of bundles of ZnO NWs. UV near-band-edge PL emission spectroscopy was carried out at room temperature and by lowering the temperature down to 77 K, which allows detection of resolved PL peaks related to different excitonic transition regions. Surface effects were observed in PL maps, considering different nano and microstructures. Electrical and optical measurements were acquired at the same time during the NO2 gas exposure, allowing for the comparison of PL and PC response times and signal recovery. During NO2 gas desorption, irreversible behavior in the surface-related and donor-acceptor pair (DAP) regions is interpreted as the effect of an initial transient when electronic transfer from the gas molecules to the bulk occurs through the ZnO NW surface which acts as a channel. To the best of our knowledge, this is the first work which investigates the simultaneous PL optical and PC electrical response signals of a single ZnO NW to gas exposure.
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Affiliation(s)
- Federica Rigoni
- Sensor Lab., Dept. of Information Engineering, University of Brescia, 25133 Brescia, Italy
| | - Dario Zappa
- Sensor Lab., Dept. of Information Engineering, University of Brescia, 25133 Brescia, Italy
| | | | - Guido Faglia
- Sensor Lab., Dept. of Information Engineering, University of Brescia, 25133 Brescia, Italy
| | - Elisabetta Comini
- Sensor Lab., Dept. of Information Engineering, University of Brescia, 25133 Brescia, Italy
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2
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Ali SA, Ahmad T. Ultrafast Hole Trapping in Te-MoTe 2-MoSe 2/ZnO S-Scheme Heterojunctions for Photochemical and Photo-/Electrochemical Hydrogen Production. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024:e2403401. [PMID: 39212625 DOI: 10.1002/smll.202403401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2024] [Revised: 08/03/2024] [Indexed: 09/04/2024]
Abstract
Te-MoTe2-MoSe2/ZnO S-scheme heterojunctions are engineered to ascertain the advanced redox ability in sustainable HER operations. Photo-physical studies have established the steady state transfer of photo-induced charge carriers whereas an improved transfer dynamics realized by state-of-art ultrafast transient absorption and irradiated-XPS analysis of optimized 5wt% Te-MoTe2-MoSe2/ZnO heterostructure. 2.5, 5, and 7.5wt% Te-MoTe2-MoSe2/ZnO photocatalysts (2.5MTMZ, 5MTMZ and 7.5MTMZ) exhibited 2.8, 3.3, and 3.1-fold higher HER performance than pristine ZnO with marvelous apparent quantum efficiency of 35.09%, 41.42% and 38.79% at HER rate of 4.45, 5.25, and 4.92 mmol/gcat/h, respectively. Electrochemical water splitting experiments manifest subdued 583 and 566 mV overpotential values of 2.5MTMZ and 5MTMZ heterostructures to achieve 10 mA cm-2 current density for HER, and 961 and 793 mV for OER, respectively. For optimized 5MTMZ photocatalyst, lifetime kinetic decay of interfacial charge transfer step is evaluated to be 138.67 ps as compared to 52.92 ps for bare ZnO.
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Affiliation(s)
- Syed Asim Ali
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
| | - Tokeer Ahmad
- Nanochemistry Laboratory, Department of Chemistry, Jamia Millia Islamia, New Delhi, 110025, India
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3
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Arif M, Rauf A, Akhter T. A comprehensive review on crosslinked network systems of zinc oxide-organic polymer composites. Int J Biol Macromol 2024; 274:133250. [PMID: 38908628 DOI: 10.1016/j.ijbiomac.2024.133250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2024] [Revised: 05/11/2024] [Accepted: 06/16/2024] [Indexed: 06/24/2024]
Abstract
In recent years, the synergistic crosslinked networks formed by zinc oxide (ZnO) particles and organic polymers have gained significant attention. This importance is ascribed due to the valuable combination of low band gap containing ZnO particles with responsive behavior containing organic polymers. These properties of both ZnO and organic polymers make a suitable system of crosslinked ZnO-organic polymer composite (CZOPC) for various applications in the fields of biomedicine, catalysis, and environmental perspectives. The literature extensively provided the diverse morphologies and structures of CZOPC, and these architectural structures play a crucial role in determining their efficiency across various applications. Consequently, the careful design of CZOPC shapes tailored to specific purposes has become a focal point. This comprehensive review provides insights into the classifications, synthetic approaches, characterizations, and applications of ZnO particles decorated in organic polymers with crosslinked network. The exploration extends to the adsorption, environmental, catalytic, and biomedical applications of ZnO-organic polymer composites. Adopting a tutorial approach, the review systematically investigates and elucidates the applications of CZOPC with a comprehensive understanding of their diverse capabilities and uses.
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Affiliation(s)
- Muhammad Arif
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan.
| | - Abdul Rauf
- Department of Chemistry, School of Science, University of Management and Technology, Lahore 54770, Pakistan
| | - Toheed Akhter
- Department of Chemical and Biological Engineering, Gachon University, Seongnam 13120, Republic of Korea.
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4
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Olejnik-Fehér N, Jędrzejewska M, Wolska-Pietkiewicz M, Lee D, Paëpe GD, Lewiński J. On the Fate of Lithium Ions in Sol-Gel Derived Zinc Oxide Nanocrystals. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2309984. [PMID: 38497489 DOI: 10.1002/smll.202309984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/28/2024] [Indexed: 03/19/2024]
Abstract
Among diverse chemical synthetic approaches to zinc oxide nanocrystals (ZnO NCs), ubiquitous inorganic sol-gel methodology proved crucial for advancements in ZnO-based nanoscience. Strikingly, unlike the exquisite level of control over morphology and size dispersity achieved in ZnO NC syntheses, the purity of the crystalline phase, as well as the understanding of the surface structure and the character of the inorganic-organic interface, have been limited to vague descriptors until very recently. Herein, ZnO NCs applying the standard sol-gel synthetic protocol are synthesized with zinc acetate and lithium hydroxide and tracked the integration of lithium (Li) cations into the interior and exterior of nanoparticles by combining various techniques, including advanced solid-state NMR methods. In contrast to common views, it is demonstrated that Li+ ions remain kinetically trapped in the inorganic core, enter into a shallow subsurface layer, and generate "swelling" of the surface and interface regions. Thus, this work enabled both the determination of the NCs' structural imperfections and an in-depth understanding of the unappreciated role of the Li+ ions in impacting the doping and the passivation of sol-gel-derived ZnO nanomaterials.
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Affiliation(s)
- Natalia Olejnik-Fehér
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
- Université Grenoble Alpes, CEA, IRIG, MEM, Grenoble, 38000, France
| | - Maria Jędrzejewska
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
| | | | - Daniel Lee
- Université Grenoble Alpes, CEA, IRIG, MEM, Grenoble, 38000, France
| | - Gaël De Paëpe
- Université Grenoble Alpes, CEA, IRIG, MEM, Grenoble, 38000, France
| | - Janusz Lewiński
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, Warsaw, 01-224, Poland
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland
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5
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Chouikh F, Saoudi A, Ţălu Ş, Bouznit Y, Ghribi F, Leroy G. Dual effect to improve the electrical properties of SZO films grown by nitrogen pneumatic spray pyrolysis. Microsc Res Tech 2024; 87:876-887. [PMID: 38126943 DOI: 10.1002/jemt.24475] [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: 09/06/2023] [Revised: 11/20/2023] [Accepted: 12/02/2023] [Indexed: 12/23/2023]
Abstract
The principal aim of this study is to reduce considerably, via Sn doping, the resistivity of ZnO thin films prepared by simple, flexible, and cost-effective nitrogen pneumatic spray pyrolysis (NPSP) method on glass substrates at a temperature of 400°C. Different Sn content was tested (Sn/Zn = 0, 1, 3, 5 wt%) in an attempt to reduce the concentration of excessive oxygen atoms and create more free electrons. The microstructural, optical, morphological, and electrical properties of the films have been studied. The x-ray diffraction analysis demonstrated that tin-doped SZO films exhibited polycrystalline nature with a preferential orientation along (002) plane with the appearance of a new orientation (101) with the increase of Sn concentration leading then to bidirectional growth. The deposited SZO films showed an average optical transmittance of about 80% in the UV-visible region (200-800 nm) with optical band gap values at around 3.27 eV. Photoluminescence emissions of SZO samples presented three main peaks: near band edge emission, violet emission, and the blue-green emission. The surface morphology of the films obtained by scanning electron microscope (SEM) exhibited the change in morphology with increasing the Sn content. A minimum electrical resistivity value of about 17·10-3 Ω·cm was obtained for 3% SZO films. SZO films prepared by the NPSP method can be used as transparent window layer and electrodes in solar cells. RESEARCH HIGHLIGHTS: Highly oriented, conducting, and transparent Sn-doped ZnO films are successfully synthesized. The film growth orientation changed from mono-directional (002) axis to bi-directional (002) and (101) axis according to Sn doping. Ultraviolet and green emissions are noted by photoluminescence investigation. A minimum resistivity is observed for 3 wt% SZO film. The dual positive effect of the carrier gas used (N2) and Sn doping is confirmed.
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Affiliation(s)
- Fathi Chouikh
- Laboratory of Materials: Elaborations-Properties-Applications, Faculty of Science and Technology, Jijel University, Jijel, Algeria
| | - Ahmed Saoudi
- Department of Chemistry, Faculty of Science, M'sila University, M'sila, Algeria
| | - Ştefan Ţălu
- The Directorate of Research, Development and Innovation Management (DMCDI), Technical University of Cluj-Napoca, Cluj-Napoca, Romania
| | - Yazid Bouznit
- Laboratory of Materials: Elaborations-Properties-Applications, Faculty of Science and Technology, Jijel University, Jijel, Algeria
- Department of Chemistry, Faculty of Science, M'sila University, M'sila, Algeria
| | - Faouzi Ghribi
- Laboratory of Physics of Materials and Nanomaterials Applied at Environment (LaPhyMNE), Faculty of Sciences in Gabes, Gabes University, Gabes, Tunisia
| | - Gerard Leroy
- Unité de Dynamique et Structure des Matériaux Moléculaire, Université du Littorale Côte d'Opale, Calais, France
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6
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Beck A, Newton MA, van de Water LGA, van Bokhoven JA. The Enigma of Methanol Synthesis by Cu/ZnO/Al 2O 3-Based Catalysts. Chem Rev 2024; 124:4543-4678. [PMID: 38564235 DOI: 10.1021/acs.chemrev.3c00148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
The activity and durability of the Cu/ZnO/Al2O3 (CZA) catalyst formulation for methanol synthesis from CO/CO2/H2 feeds far exceed the sum of its individual components. As such, this ternary catalytic system is a prime example of synergy in catalysis, one that has been employed for the large scale commercial production of methanol since its inception in the mid 1960s with precious little alteration to its original formulation. Methanol is a key building block of the chemical industry. It is also an attractive energy storage molecule, which can also be produced from CO2 and H2 alone, making efficient use of sequestered CO2. As such, this somewhat unusual catalyst formulation has an enormous role to play in the modern chemical industry and the world of global economics, to which the correspondingly voluminous and ongoing research, which began in the 1920s, attests. Yet, despite this commercial success, and while research aimed at understanding how this formulation functions has continued throughout the decades, a comprehensive and universally agreed upon understanding of how this material achieves what it does has yet to be realized. After nigh on a century of research into CZA catalysts, the purpose of this Review is to appraise what has been achieved to date, and to show how, and how far, the field has evolved. To do so, this Review evaluates the research regarding this catalyst formulation in a chronological order and critically assesses the validity and novelty of various hypotheses and claims that have been made over the years. Ultimately, the Review attempts to derive a holistic summary of what the current body of literature tells us about the fundamental sources of the synergies at work within the CZA catalyst and, from this, suggest ways in which the field may yet be further advanced.
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Affiliation(s)
- Arik Beck
- Institute for Chemistry and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
- Institute for Chemical Technology and Polymer Chemistry (ITCP), Karlsruhe Institute of Technology (KIT), 76131 Karlsruhe, Germany
| | - Mark A Newton
- Institute for Chemistry and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, 182 23 Prague 8, Czech Republic
| | | | - Jeroen A van Bokhoven
- Institute for Chemistry and Bioengineering, ETH Zurich, 8093 Zürich, Switzerland
- Laboratory for Catalysis and Sustainable Chemistry, Paul Scherrer Institute, 5232 Villigen, Switzerland
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7
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Arab N, Derakhshani R, Sayadi MH. Approaches for the Efficient Removal of Fluoride from Groundwater: A Comprehensive Review. TOXICS 2024; 12:306. [PMID: 38787085 PMCID: PMC11126082 DOI: 10.3390/toxics12050306] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2024] [Revised: 03/28/2024] [Accepted: 04/01/2024] [Indexed: 05/25/2024]
Abstract
Contamination of groundwater with fluoride represents a significant global issue, with high concentrations posing serious public health threats. While fluoride is a critical element in water, excessive levels can be detrimental to human health and potentially life-threatening. Addressing the challenge of removing fluoride from underground water sources via nanotechnological approaches is a pressing concern in environmental science. To collate relevant information, extensive literature searches were conducted across multiple databases, including Google Scholar, PubMed, Scopus, Web of Science, the American Chemical Society, Elsevier, Springer, and the Royal Society of Chemistry. VOS Viewer software version 1.6.20 was employed for a systematic review. This article delivers an exhaustive evaluation of various groundwater fluoride removal techniques, such as adsorption, membrane filtration, electrocoagulation, photocatalysis, and ion exchange. Among these, the application of nanoparticles emerges as a notable method. The article delves into nano-compounds, optimizing conditions for the fluoride removal process and benchmarking their efficacy against other techniques. Studies demonstrate that advanced nanotechnologies-owing to their rapid reaction times and potent oxidation capabilities-can remove fluoride effectively. The implementation of nanotechnologies in fluoride removal not only enhances water quality but also contributes to the safeguarding of human health.
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Affiliation(s)
- Negar Arab
- Department of Environmental Engineering, Faculty of Natural Resources and Environment, University of Birjand, Birjand 9717434765, Iran;
| | - Reza Derakhshani
- Department of Geology, Shahid Bahonar University of Kerman, Kerman 7616913439, Iran
- Department of Earth Sciences, Utrecht University, 3584 CB Utrecht, The Netherlands
| | - Mohammad Hossein Sayadi
- Faculty of Natural Resources and Environment, Shahid Bahonar University of Kerman, Kerman 7616913439, Iran;
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8
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Mikami T, Kato R, Hosokawa Y, Miyamoto N, Kato T. Nanostructure Control in Zinc Oxide Films and Microfibers through Bioinspired Synthesis of Liquid-Crystalline Zinc Hydroxide Carbonate; Formation of Free-Standing Materials in Centimeter-Level Lengths. SMALL METHODS 2024; 8:e2300353. [PMID: 37665220 DOI: 10.1002/smtd.202300353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 07/30/2023] [Indexed: 09/05/2023]
Abstract
Free-standing zinc oxide in the forms of films and fibrous materials are expected to be used as functional devices such as piezoelectric devices and catalyst filters without being limited by the growth substrate. Herein, a synthetic morphology-control method for 2D and 1D free-standing ZnO materials with ordered and nanoporous structures by conversion of liquid-crystalline (LC) zinc hydroxide carbonate (ZHC) nanoplates is reported. As a new colloidal liquid crystal, the LC ZHC nanoplate precursors are obtained by a biomineralization-inspired method. The approach is to control the morphology and crystallographic orientation of ZHC crystals by using acidic macromolecules. Their nano-scale and oriented structures are examined. The LC oriented ZHC nanoplates have led to the synthesis of free-standing films and microfibers of ZHC in centimeter-level lengths, with the successful thermal conversion into free-standing films and microfibers of ZnO. The resultant ZnO films and ZnO microfibers have nanoporous structures and preferential crystallographic orientations that preserve the alignment of ZHC nanoplates before conversion.
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Affiliation(s)
- Takahiro Mikami
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Riki Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Yoshihiro Hosokawa
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Nobuyoshi Miyamoto
- Department of Life, Environment and Applied Chemistry, The Faculty of Engineering, Fukuoka Institute of Technology, Wajiro-higashi, Higashi-ku, Fukuoka, 811-0295, Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
- Research Initiative for Supra-Materials, Shinshu University, Wakasato, Nagano, 380-8553, Japan
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9
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Elmehdi HM, Ramachandran K, Chidambaram S, Mani GT, Pandiaraj S, Alqarni SA, Daoudi K, Gaidi M. Diode characteristics, piezo-photocatalytic antibiotic degradation and hydrogen production of Ce 3+ doped ZnO nanostructures. CHEMOSPHERE 2024; 350:141015. [PMID: 38154676 DOI: 10.1016/j.chemosphere.2023.141015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Revised: 11/27/2023] [Accepted: 12/19/2023] [Indexed: 12/30/2023]
Abstract
Piezo-photocatalysis of ZnO nanostructures had recently well attracted due to their exceptional potential in degrading the antibiotics and scalable hydrogen production. Here, we have synthesized the Ce3+ doped ZnO nanospheres in a facile wet chemical strategy. Dopant ions induced morphological evolution and optical bandgap tuning had observed in our experiment. Optical absorbance spectrum had confirmed the bandgap shortening occurs with Ce3+ doped ZnO specimens. The bandgap gap value had reduced to 2.82 eV from 3.05eV confirming the visible light responsivity of ZnO nano specimens. Obtained Zn(1-x)CexO nanospheres were utilized to fabricate the p-Si/n- Zn(1-x)CexO heterojunction diodes as well studied the improved electrical conductivity for the Ce3+ specimen-based diodes. Besides, ideality factor and barrier height values of the heterojunction diodes ZnO/p-Si, Zn0.99Ce0.01O/p-Si, Zn0.97Ce0.03O/p-Si, and Zn0.95Ce0.05O/p-Si are 15.97 & 0.43 eV, 15.47 & 0.44 eV, 8.02 & 0.46 eV and 5.21 & 0.47 eV, respectively. Direct sunlight assisted piezo-photocatalytic tetracycline (TC) degradation efficiency of ZnO, Zn0.99Ce0.01O, Zn0.97Ce0.03O, and Zn0.95Ce0.05O nanostructures respectively are 64%, 69%, 74% and 82%. We have produced the hydrogen quantity of 1234 μ mol h-1, 1490 μ mol h-1, 1750 μ mol h-1 and 1980 μ mol h-1 with 0%, 1%, 3% and 5% Ce3+ doped ZnO specimens under the direct sunlight assisted piezo-photocatalytic H2 production from H2S splitting.
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Affiliation(s)
- Hussein M Elmehdi
- Department of Applied Physics and Astronomy, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates.
| | - Krithikadevi Ramachandran
- Centre for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates; University College of Engineering, BIT Campus, Tiruchirappalli, Tamilnadu, India
| | - Siva Chidambaram
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, 603203, India.
| | | | - Saravanan Pandiaraj
- Department of Self-Development Skills, CFY Deanship, King Saud University, Riyadh 11451, Saudi Arabia
| | | | - Kais Daoudi
- Department of Applied Physics and Astronomy, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; Centre for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Mounir Gaidi
- Department of Applied Physics and Astronomy, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; Centre for Advanced Materials Research, Research Institute of Sciences and Engineering, University of Sharjah, Sharjah 27272, United Arab Emirates
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10
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Beytür S, Essiz S, Özuğur Uysal B. Investigation of Structural and Antibacterial Properties of WS 2-Doped ZnO Nanoparticles. ACS OMEGA 2024; 9:4037-4049. [PMID: 38284036 PMCID: PMC10809239 DOI: 10.1021/acsomega.3c09041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 11/28/2023] [Accepted: 12/21/2023] [Indexed: 01/30/2024]
Abstract
ZnO nanoparticles, well-known for their structural, optical, and antibacterial properties, are widely applied in diverse fields. The doping of different materials to ZnO, such as metals or metal oxides, is known to ameliorate its properties. Here, nanofilms composed of ZnO doped with WS2 at 5, 15, and 25% ratios are synthesized, and their properties are investigated. Supported by molecular docking analyses, the enhancement of the bactericidal properties after the addition of WS2 at different ratios is highlighted and supported by the inhibitory interaction of residues playing a crucial role in the bacterial survival through the targeting of proteins of interest.
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Affiliation(s)
- Sercan Beytür
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
| | - Sebnem Essiz
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
| | - Bengü Özuğur Uysal
- Faculty of Engineering and
Natural Sciences, Kadir Has University, Cibali, Fatih, Istanbul 34083, Turkey
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11
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Latif MJ, Ali S, Jamil S, Bibi S, Jafar T, Rasheed A, Noreen S, Bashir A, Rauf Khan S. Comparative catalytic reduction and degradation with biodegradable sodium alginate based nanocomposite: Zinc oxide/N-doped carbon nitride/sodium alginate. Int J Biol Macromol 2024; 254:127954. [PMID: 37951425 DOI: 10.1016/j.ijbiomac.2023.127954] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Revised: 10/22/2023] [Accepted: 10/27/2023] [Indexed: 11/14/2023]
Abstract
Sodium alginate (SA) is a biodegradable macromolecule which is used to synthesize nanocomposites and their further use as catalysis. Zinc oxide (ZnO) and nitrogen doped carbon nitride (ND-C3N4) nanoparticles are prepared using solvothermal and hydrothermal methods, respectively. ZnO/ND-C3N4/SA nanocomposites are successfully synthesized by employing in-situ polymerization. The presence of essential functional groups is confirmed by Fourier transform infrared (FTIR) spectroscopic analysis. Controlled spherical morphology for ZnO nanoparticles, with an average diameter of ∼52 nm, is shown by Scanning electron microscopic (SEM) analysis, while rice-like grain structure with an average grain size ∼62 nm is exhibited by ND-C3N4 nanoparticles. The presence of required elements is confirmed by Energy dispersive X-ray spectroscopic (EDX) analysis. The crystalline nature of nanocomposites is verified by X-ray diffraction spectroscopic (XRD) analysis. The investigation of the catalytic efficiency for degradation and reduction of various organic dyes is carried out on nanoparticles and nanocomposites. Thorough examination and comparison of parameters, such as apparent rate constant (kapp), reduction time, percentage reduction, reduced concentration and half-life, are conducted for all substrates. The nanocomposites show greater efficiency than nanoparticles in both reactions: catalytic reduction and catalytic degradation.
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Affiliation(s)
| | - Sarmed Ali
- Faculty of Engineering, Østfold University College, Halden, Norway
| | - Saba Jamil
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Shamsa Bibi
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Touseef Jafar
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Ammara Rasheed
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Sadia Noreen
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Arslan Bashir
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
| | - Shanza Rauf Khan
- Department of Chemistry, University of Agriculture, Faisalabad 38000, Pakistan
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12
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Vijay NK, Maya PN, Mukherjee S, Liedke MO, Butterling M, Attallah AG, Hirschmann E, Wagner A, Benoy MD. Effect of annealing temperature on the structure and optical properties of ZnO thin films. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2023; 36:135002. [PMID: 38061063 DOI: 10.1088/1361-648x/ad1361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Accepted: 12/07/2023] [Indexed: 12/22/2023]
Abstract
The effect of annealing temperature on the microstructure, defects and optical properties of ZnO thin films are investigated using sol-gel based spin coating method for a range of annealing temperatures from 200∘C to 500∘C. The correlation among the microstructure, defects, impurity content and the optical band gap of films of thickness about 10-12 nm is elucidated. The particle size increases and the optical band gap reduces with the annealing temperature. At 200∘C, amorphous films were formed with particle size less than 10 nm with an optical band gap of about 3.41 eV. As the temperature increases the grain size increases and the defect, impurity content as well as the optical band gap reduces. This could be due to the reduction in the lattice strain. For an average grain size of about 35 nm and above, the band gap asymptotically approaches the theoretical value of ZnO (3.37 eV). The photoluminescence (PL) spectra show a systematic red-shift in the excitonic levels corresponding to the variation in the optical band-gap. The defect emission from Zn-vacancies is observed in the PL spectra and are further supported by the positron annihilation measurements.
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Affiliation(s)
| | - P N Maya
- Institute for Plasma Research, Bhat, Gandhinagar 382428, India
| | - S Mukherjee
- Bhabha Atomic Research Center, Trombay, Mumbai 400085, India
| | - M O Liedke
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstraße, 400, 01328 Dresden, Germany
| | - M Butterling
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstraße, 400, 01328 Dresden, Germany
| | - A G Attallah
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstraße, 400, 01328 Dresden, Germany
| | - E Hirschmann
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstraße, 400, 01328 Dresden, Germany
| | - A Wagner
- Helmholtz-Zentrum Dresden-Rossendorf, Institute of Radiation Physics, Bautzner Landstraße, 400, 01328 Dresden, Germany
| | - M D Benoy
- Mar Athanasius College, Kothamangalam 686666, India
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13
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Gallivan RA, Aitken ZH, Chamoun-Farah A, Zhang YW, Greer JR. Microstructure-driven mechanical and electromechanical phenomena in additively manufactured nanocrystalline zinc oxide. NANOTECHNOLOGY 2023; 35:065706. [PMID: 37922547 DOI: 10.1088/1361-6528/ad0984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2023] [Accepted: 11/03/2023] [Indexed: 11/07/2023]
Abstract
Advances in nanoscale additive manufacturing (AM) offer great opportunities to expand nanotechnologies; however, the size effects in these printed remain largely unexplored. Using bothin situnanomechanical and electrical experiments and molecular dynamics (MD) simulations, this study investigates additively manufactured nano-architected nanocrystalline ZnO (nc-ZnO) with ∼7 nm grains and dimensions spanning 0.25-4μm. These nano-scale ceramics are fabricated through printing and subsequent burning of metal ion-containing hydrogels to produce oxide structures. Electromechanical behavior is shown to result from random ordering in the microstructure and can be modeled through a statistical treatment. A size effect in the failure behavior of AM nc-ZnO is also observed and characterized by the changes in deformation behavior and suppression of brittle failure. MD simulations provide insights to the role of grain boundaries and grain boundary plasticity on both electromechanical behavior and failure mechanisms in nc-ZnO. The frameworks developed in this paper extend to other AM nanocrystalline materials and provide quantification of microstructurally-drive limitations to precision in materials property design.
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Affiliation(s)
- Rebecca A Gallivan
- Division of Engineering and Applied Science, California Institute of Technology, 1200 E. California Blvd, CA 91125, United States of America
- Laboratory for Nanometallurgy, Department of MaterialsTH Zurich, ETH Zurich Vladimir-Prelog-Weg 5 Zurich CH-8093, Switzerland
| | - Zachary H Aitken
- Institute of High Performance Computing, A*STAR, 1 Fusionopolis Way, #16-16 Connexis North, 138632, Singapore
| | - Antoine Chamoun-Farah
- Division of Engineering and Applied Science, California Institute of Technology, 1200 E. California Blvd, CA 91125, United States of America
- Department of Chemical Engineering, University of Texas at Austin, 110 Inner Campus Drive, Austin, TX 78705, United States of America
| | - Yong-Wei Zhang
- Institute of High Performance Computing, A*STAR, 1 Fusionopolis Way, #16-16 Connexis North, 138632, Singapore
| | - Julia R Greer
- Division of Engineering and Applied Science, California Institute of Technology, 1200 E. California Blvd, CA 91125, United States of America
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14
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Clarke B, Ghandi K. The Interplay of Growth Mechanism and Properties of ZnO Nanostructures for Different Applications. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2302864. [PMID: 37403280 DOI: 10.1002/smll.202302864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/29/2023] [Indexed: 07/06/2023]
Abstract
This review provides a background on the structure and properties of ZnO nanostructures. ZnO nanostructures are advantageous for many applications in sensing, photocatalysis, functional textiles, and cosmetic industries, which are described in this review. Previous work using UV Visible (UV-vis) spectroscopy and scanning electron microscopy (SEM) for ZnO nanorod growth analysis in-solution and on a substrate for determination of optical properties and morphology is discussed, as well as their results in determining the kinetics and growth mechanisms. From this literature review, it is understood that the synthesis process greatly affects nanostructures and properties; and hence, their applications. In addition, in this review, the mechanism of ZnO nanostructure growth is unveiled, and it is shown that by having greater control over their morphology and size through such mechanistic understanding, the above-mentioned applications can be affected. The contradictions and gaps in knowledge are summarized in order to highlight the variations in results, followed by suggestions for how to answer these gaps and future outlooks for ZnO nanostructure research.
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15
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KIM S, YUMUŞAK Ç, IRIMIA CV, BEDNORZ M, YENEL E, KUŞ M, SARIÇİFTÇİ NS, SHIM BS, IRIMIA-VLADU M. Amplifying the dielectric constant of shellac by incorporating natural clays for organic field effect transistors (OFETs). Turk J Chem 2023; 47:1169-1182. [PMID: 38173751 PMCID: PMC10762868 DOI: 10.55730/1300-0527.3603] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 10/31/2023] [Accepted: 10/11/2023] [Indexed: 01/05/2024] Open
Abstract
We demonstrate in this work the practical use of uniform mixtures of a bioresin shellac and four natural clays, i.e. montmorillonite, sepiolite, halloysite and vermiculate as dielectrics in organic field effect transistors (OFETs). We present a thorough characterization of their processability and film forming characteristic, surface characterization, elaborate dielectric investigation and the fabrication of field effect transistors with two classic organic semiconductors, i.e. pentacene and fullerene C60. We show that low operating voltage of approximately 4 V is possible for all the OFETs using several combinations of clays and shellac. The capacitance measurements show an improvement of the dielectric constant of shellac by a factor of 2, to values in excess of 7 in the uniform mixtures of sepiolite and montmorillonite with this bioresin.
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Affiliation(s)
- Sunwoo KIM
- Department of Chemical Engineering, Inha University,
South Korea
- Program in Biomedical Science & Engineering, Inha University,
South Korea
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
| | - Çiğdem YUMUŞAK
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
| | - Cristian Vlad IRIMIA
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
| | - Mateusz BEDNORZ
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
| | - Esma YENEL
- Department of Chemical Engineering, Konya Technical University, Konya,
Turkiye
| | - Mahmut KUŞ
- Department of Chemical Engineering, Konya Technical University, Konya,
Turkiye
| | - Niyazi Serdar SARIÇİFTÇİ
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
| | - Bong Sup SHIM
- Department of Chemical Engineering, Inha University,
South Korea
- Program in Biomedical Science & Engineering, Inha University,
South Korea
| | - Mihai IRIMIA-VLADU
- Linz Institute for Organic Solar Cells (LIOS), Institute of Physical Chemistry, Johannes Kepler University Linz, Linz,
Austria
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16
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Taglieri G, Daniele V, Maurizio V, Merlin G, Siligardi C, Capron M, Mondelli C. New Eco-Friendly and Low-Energy Synthesis to Produce ZnO Nanoparticles for Real-World Scale Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:2458. [PMID: 37686967 PMCID: PMC10490244 DOI: 10.3390/nano13172458] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 08/14/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023]
Abstract
This paper presents an original and sustainable method for producing ZnO nanoparticles (NPs) in response to global challenges (low energy requirements, low environmental impact, short production times, and high production yield). The method is based on an ion exchange process between an anionic resin and an aqueous ZnCl2 solution; it operates in one step at room temperature/ambient pressure without the need for complex apparatus or purification steps. From the kinetics, we observed the formation of pure simonkolleite, a zinc-layered hydroxide salt (Zn5(OH)8Cl2·H2O), after only 5 min of reaction. This compound, used elsewhere as a ZnO precursor after calcination at high temperatures, here decomposes at room temperature into ZnO, allowing extraordinary savings of time and energy. Finally, in only 90 min, pure and crystalline ZnO NPs are obtained, with a production yield > 99%. Several types of aggregates resulting from the self-assembly of small hexagonal platelets (solid or hollow in shape) were observed. Using our revolutionary method, we produced almost 10 kg of ZnO NPs per week without any toxic waste, significantly reducing energy consumption; this method allows transferring the use of these unique NPs from the laboratory environment to the real world.
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Affiliation(s)
- Giuliana Taglieri
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, Roio Poggio, 67100 L’Aquila, AQ, Italy;
| | - Valeria Daniele
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, Roio Poggio, 67100 L’Aquila, AQ, Italy;
| | - Valentina Maurizio
- Department of Industrial and Information Engineering and Economics, University of L’Aquila, Piazzale E. Pontieri 1, Monteluco di Roio, Roio Poggio, 67100 L’Aquila, AQ, Italy;
| | - Gabriel Merlin
- Department of Chemical Sciences, University of Padova, Via Marzolo 1, 35131 Padova, PD, Italy;
| | - Cristina Siligardi
- Department of Engineering “Enzo Ferrari”, University of Modena and Reggio Emilia, Via P. Vivarelli 10, 41125 Modena, MO, Italy;
| | - Marie Capron
- ESRF, 71 Avenue des Martyrs, 38042 Grenoble, CEDEX 9, France;
- Paternship for Soft Condensed Matter PSCM, 71 Avenue des Martyrs, 38042 Grenoble, CEDEX 9, France
| | - Claudia Mondelli
- CNR-IOM-OGG, Institut Laue Langevin, 71 Avenue des Martyrs, 38042 Grenoble, CEDEX 9, France;
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17
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Truong TT, Khieu TT, Luu HN, Truong HB, Nguyen VK, Vuong TX, Tran TKN. Characterization and Bioactivity of Piper chaudocanum L. Extract-Doped ZnO Nanoparticles Biosynthesized by Co-Precipitation Method. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5457. [PMID: 37570161 PMCID: PMC10420328 DOI: 10.3390/ma16155457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 06/18/2023] [Accepted: 07/03/2023] [Indexed: 08/13/2023]
Abstract
Green synthesis and nanomaterials have been the current trends in biomedical materials. In this study, Piper chaudocanum L. leaf extract-doped ZnO nanoparticles (PLE-doped ZnO NPs), a novel nanomaterial, were studied including the synthesis process, and the biomedical activity was evaluated. PLE-doped ZnO NPs were synthesized by the co-precipitation method, with differences in the synthesis procedures and dosages of the extract. The X-ray diffraction, Fourier transform infrared, scanning electron microscopy, energy dispersive X-ray spectroscopy, Brunauer-Emmett-Teller, ultraviolet-visible diffuse reflectance spectroscopy, and photoluminescence spectrum analysis results showed that the biosynthesized PLE-doped ZnO NPs were pure and in a hexagonal wurtzite phase. The PLE-doped NPs were synthesized by adding the extract to the zinc acetate solution before adjusting the pH and exhibited the smallest size (ZPS50 was 22 nm), the richest in the surface organic functional groups and the best optical activity. The highest antibacterial activity against P. aeruginosa and S. aureus was observed at 100 µg/mL of ZPS50 NPs, and the inhibition zone reached 42 and 39 nm, respectively. Moreover, ZPS50 NPs showed a moderate effectiveness against KB cancer cells with an IC50 value of 43.53 ± 2.98 µg/mL. This present study's results suggested that ZPS50 NPs could be a promising nanomaterial in developing drugs for treating human epithelial carcinoma cells and infectious illnesses.
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Affiliation(s)
- Thi Thao Truong
- Faculty of Chemistry, TNU-University of Sciences, Tan Thinh Ward, Thai Nguyen City 250000, Vietnam (V.K.N.); (T.X.V.)
| | - Thi Tam Khieu
- Faculty of Chemistry, TNU-University of Sciences, Tan Thinh Ward, Thai Nguyen City 250000, Vietnam (V.K.N.); (T.X.V.)
| | - Huu Nguyen Luu
- Laboratory of Magnetism and Magnetic Materials, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City 700000, Vietnam;
- Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City 700000, Vietnam;
| | - Hai Bang Truong
- Faculty of Applied Technology, School of Technology, Van Lang University, Ho Chi Minh City 700000, Vietnam;
- Optical Materials Research Group, Science and Technology Advanced Institute, Van Lang University, Ho Chi Minh City 700000, Vietnam
| | - Van Khien Nguyen
- Faculty of Chemistry, TNU-University of Sciences, Tan Thinh Ward, Thai Nguyen City 250000, Vietnam (V.K.N.); (T.X.V.)
| | - Truong Xuan Vuong
- Faculty of Chemistry, TNU-University of Sciences, Tan Thinh Ward, Thai Nguyen City 250000, Vietnam (V.K.N.); (T.X.V.)
| | - Thi Kim Ngan Tran
- Institute of Applied Technology and Sustainable Development, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
- Faculty of Environmental and Food Engineering, Nguyen Tat Thanh University, Ho Chi Minh City 700000, Vietnam
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18
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Petrov VV, Sysoev VV, Ignatieva IO, Gulyaeva IA, Volkova MG, Ivanishcheva AP, Khubezhov SA, Varzarev YN, Bayan EM. Nanocomposite Co 3O 4-ZnO Thin Films for Photoconductivity Sensors. SENSORS (BASEL, SWITZERLAND) 2023; 23:5617. [PMID: 37420782 DOI: 10.3390/s23125617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/09/2023] [Accepted: 06/12/2023] [Indexed: 07/09/2023]
Abstract
Thin nanocomposite films based on zinc oxide (ZnO) added with cobalt oxide (Co3O4) were synthesized by solid-phase pyrolysis. According to XRD, the films consist of a ZnO wurtzite phase and a cubic structure of Co3O4 spinel. The crystallite sizes in the films increased from 18 nm to 24 nm with growing annealing temperature and Co3O4 concentration. Optical and X-ray photoelectron spectroscopy data revealed that enhancing the Co3O4 concentration leads to a change in the optical absorption spectrum and the appearance of allowed transitions in the material. Electrophysical measurements showed that Co3O4-ZnO films have a resistivity up to 3 × 104 Ohm∙cm and a semiconductor conductivity close to intrinsic. With advancing the Co3O4 concentration, the mobility of the charge carriers was found to increase by almost four times. The photosensors based on the 10Co-90Zn film exhibited a maximum normalized photoresponse when exposed to radiation with wavelengths of 400 nm and 660 nm. It was found that the same film has a minimum response time of ca. 26.2 ms upon exposure to radiation of 660 nm wavelength. The photosensors based on the 3Co-97Zn film have a minimum response time of ca. 58.3 ms versus the radiation of 400 nm wavelength. Thus, the Co3O4 content was found to be an effective impurity to tune the photosensitivity of radiation sensors based on Co3O4-ZnO films in the wavelength range of 400-660 nm.
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Affiliation(s)
- Victor V Petrov
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
| | - Victor V Sysoev
- Institute of Physics and Technology, Yuri Gagarin State Technical University of Saratov, Saratov 410054, Russia
| | - Irina O Ignatieva
- Faculty of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Irina A Gulyaeva
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
| | - Maria G Volkova
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
- Faculty of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia
| | - Alexandra P Ivanishcheva
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
| | - Soslan A Khubezhov
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
- Core Shared Research Facility «Physics and Technology of Nanostructures», North-Ossetian State University, Vladikavkaz 362025, Russia
- Department of Physics and Engineering, ITMO University, St. Petersburg 197101, Russia
| | - Yuri N Varzarev
- Institute of Nanotechnologies, Electronics, and Equipment Engineering, Southern Federal University, Taganrog 347922, Russia
| | - Ekaterina M Bayan
- Faculty of Chemistry, Southern Federal University, Rostov-on-Don 344090, Russia
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19
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Gartner M, Stroescu H, Mitrea D, Nicolescu M. Various Applications of ZnO Thin Films Obtained by Chemical Routes in the Last Decade. Molecules 2023; 28:4674. [PMID: 37375229 PMCID: PMC10304324 DOI: 10.3390/molecules28124674] [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: 04/30/2023] [Revised: 06/06/2023] [Accepted: 06/07/2023] [Indexed: 06/29/2023] Open
Abstract
This review addresses the importance of Zn for obtaining multifunctional materials with interesting properties by following certain preparation strategies: choosing the appropriate synthesis route, doping and co-doping of ZnO films to achieve conductive oxide materials with p- or n-type conductivity, and finally adding polymers in the oxide systems for piezoelectricity enhancement. We mainly followed the results of studies of the last ten years through chemical routes, especially by sol-gel and hydrothermal synthesis. Zinc is an essential element that has a special importance for developing multifunctional materials with various applications. ZnO can be used for the deposition of thin films or for obtaining mixed layers by combining ZnO with other oxides (ZnO-SnO2, ZnO-CuO). Also, composite films can be achieved by mixing ZnO with polymers. It can be doped with metals (Li, Na, Mg, Al) or non-metals (B, N, P). Zn is easily incorporated in a matrix and therefore it can be used as a dopant for other oxidic materials, such as: ITO, CuO, BiFeO3, and NiO. ZnO can be very useful as a seed layer, for good adherence of the main layer to the substrate, generating nucleation sites for nanowires growth. Thanks to its interesting properties, ZnO is a material with multiple applications in various fields: sensing technology, piezoelectric devices, transparent conductive oxides, solar cells, and photoluminescence applications. Its versatility is the main message of this review.
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Affiliation(s)
| | - Hermine Stroescu
- Institute of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
| | - Daiana Mitrea
- Institute of Physical Chemistry “Ilie Murgulescu”, Romanian Academy, 202 Splaiul Independentei, 060021 Bucharest, Romania
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20
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Vinitha V, Preeyanghaa M, Anbarasu M, Neppolian B, Sivamurugan V. Chemical recycling of polyester textile wastes using silver-doped zinc oxide nanoparticles: an economical solution for circular economy. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-27567-0. [PMID: 37217818 DOI: 10.1007/s11356-023-27567-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Accepted: 05/05/2023] [Indexed: 05/24/2023]
Abstract
The waste management of polyethylene terephthalate (PET)-derived polyester (PES) textile is a global issue, and material recovery through chemical recycling can restore a circular economy. In our investigation, microwave-induced catalytic aminolysis and glycolysis of PES textile wastes using Ag-doped ZnO nanoparticles have been proposed. Ag-doped ZnO is prepared by the sol-gel method and characterised by XRD, FT-IR, UV-Vis, SEM-EDX and TEM. The reaction parameters such as PET-to-catalyst ratio, microwave power and irradiation time, temperature and catalyst recycling have been optimised. The catalyst was found to be more stable and could be recycled up to six times without losing its activity. Both the aminolysis and glycolysis of PES showed 100% conversion and afforded of bis (2-hydroxy ethylene) terephthalamide (BHETA) and bis (2-hydroxy ethylene) terephthalate (BHET), respectively. The depolymerisation of PES wastes using Ag-doped ZnO afforded BHETA and BHET for about 95 and 90%, respectively. The monomers BHET and BHETA confirmed by FT-IR, 1H NMR and mass spectroscopy. According to the findings, 2 mol% Ag-doped ZnO has higher catalytic activity.
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Affiliation(s)
- Viswanathan Vinitha
- PG and Research Department of Chemistry, Pachaiyappa's College, Chennai, 600 030, India
| | - Mani Preeyanghaa
- Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, India
| | - Murugan Anbarasu
- PG and Research Department of Chemistry, Pachaiyappa's College, Chennai, 600 030, India
| | - Bernaurdshaw Neppolian
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, 603 203, India
| | - Vajiravelu Sivamurugan
- PG and Research Department of Chemistry, Pachaiyappa's College, Chennai, 600 030, India.
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21
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Stroescu H, Nicolescu M, Mitrea D, Tenea E, Atkinson I, Anastasescu M, Calderon-Moreno JM, Gartner M. Effect of Al Incorporation on the Structural and Optical Properties of Sol-Gel AZO Thin Films. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093329. [PMID: 37176212 PMCID: PMC10179613 DOI: 10.3390/ma16093329] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Revised: 04/17/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023]
Abstract
ZnO and Al-doped ZnO (AZO) thin films were prepared using the sol-gel method and deposited on a Silicon (Si(100)) substrate using the dipping technique. The structure, morphology, thickness, optical constants in the spectral range 300-1700 nm, bandgap (Eg) and photoluminescence (PL) properties of the films were analyzed using X-ray diffractometry (XRD), X-ray fluorescence (XRF), atomic force microscopy (AFM), scanning electron microscopy (SEM), spectroscopic ellipsometry (SE), Raman analysis and PL spectroscopy. The results of the structure and morphology analyses showed that the thin films are polycrystalline with a hexagonal wurtzite structure, as well as continuous and homogeneous. The PL background and broader peaks observable in the Raman spectra of the AZO film and the slight increase in the optical band gap of the AZO thin film, compared to undoped ZnO, highlight the effect of defects introduced into the ZnO lattice and an increase in the charge carrier density in the AZO film. The PL emission spectra of the AZO thin film showed a strong UV line corresponding to near-band-edge ZnO emission along with weak green and red emission bands due to deep-level defects, attributed to the oxygen-occupied zinc vacancies (OZn lattice defects).
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Affiliation(s)
- Hermine Stroescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Madalina Nicolescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Daiana Mitrea
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Ecaterina Tenea
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Irina Atkinson
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Mihai Anastasescu
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Jose Maria Calderon-Moreno
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
| | - Mariuca Gartner
- "Ilie Murgulescu" Institute of Physical Chemistry, Romanian Academy, 202 Spl. Independentei, 060021 Bucharest, Romania
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22
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Kjeldby SB, Nguyen PD, García-Fernández J, Haug K, Galeckas A, Jensen IJT, Thøgersen A, Vines L, Prytz Ø. Optical properties of ZnFe 2O 4 nanoparticles and Fe-decorated inversion domain boundaries in ZnO. NANOSCALE ADVANCES 2023; 5:2102-2110. [PMID: 36998644 PMCID: PMC10044669 DOI: 10.1039/d2na00849a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 02/24/2023] [Indexed: 06/19/2023]
Abstract
The maximum efficiency of solar cells utilizing a single layer for photovoltaic conversion is given by the single junction Shockley-Queisser limit. In tandem solar cells, a stack of materials with different band gaps contribute to the conversion, enabling tandem cells to exceed the single junction Shockley-Queisser limit. An intriguing variant of this approach is to embed semiconducting nanoparticles in a transparent conducting oxide (TCO) solar cell front contact. This alternative route would enhance the functionality of the TCO layer, allowing it to participate directly in photovoltaic conversion via photon absorption and charge carrier generation in the nanoparticles. Here, we demonstrate the functionalization of ZnO through incorporation of either ZnFe2O4 spinel nanoparticles (NPs) or inversion domain boundaries (IDBs) decorated by Fe. Diffuse reflectance spectroscopy and electron energy loss spectroscopy show that samples containing spinel particles and samples containing IDBs decorated by Fe both display enhanced absorption in the visible range at around 2.0 and 2.6 eV. This striking functional similarity was attributed to the local structural similarity around Fe-ions in spinel ZnFe2O4 and at Fe-decorated basal IDBs. Hence, functional properties of the ZnFe2O4 arise already for the two-dimensional basal IDBs, from which these planar defects behave like two-dimensional spinel-like inclusions in ZnO. Cathodoluminescence spectra reveal an increased luminescence around the band edge of spinel ZnFe2O4 when measuring on the spinel ZnFe2O4 NPs embedded in ZnO, whereas spectra from Fe-decorated IDBs could be deconvoluted into luminescence contributions from bulk ZnO and bulk ZnFe2O4.
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Affiliation(s)
- S B Kjeldby
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - P D Nguyen
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - J García-Fernández
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - K Haug
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - A Galeckas
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - I J T Jensen
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
- SINTEF Industry, Sustainable Energy Technology N-0314 Oslo Norway
| | - A Thøgersen
- SINTEF Industry, Sustainable Energy Technology N-0314 Oslo Norway
| | - L Vines
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
| | - Ø Prytz
- Centre for Materials Science and Nanotechnology, University of Oslo N-0318 Oslo Norway
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23
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Electrochemical Immunosensor for the Determination of Antibodies against Prostate-Specific Antigen Based on ZnO Nanostructures. Int J Mol Sci 2023; 24:ijms24065803. [PMID: 36982877 PMCID: PMC10052783 DOI: 10.3390/ijms24065803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 03/07/2023] [Accepted: 03/14/2023] [Indexed: 03/22/2023] Open
Abstract
In this study, ZnO nanostructures with different types of morphologies and particle sizes were evaluated and applied for the development of an immunosensor. The first material was composed of spherical, polydisperse nanostructures with a particle size in the range of 10–160 nm. The second was made up of more compact rod-like spherical nanostructures with the diameter of these rods in the range of 50–400 nm, and approximately 98% of the particles were in the range of 20–70 nm. The last sample of ZnO was made up of rod-shaped particles with a diameter of 10–80 nm. These ZnO nanostructures were mixed with Nafion solution and drop-casted onto screen-printed carbon electrodes (SPCE), followed by a further immobilization of the prostate-specific antigen (PSA). The affinity interaction of PSA with monoclonal antibodies against PSA (anti-PSA) was evaluated using the differential pulse voltammetry technique. The limit of detection and limit of quantification of anti-PSA were determined as 1.35 nM and 4.08 nM for compact rod-shaped spherical ZnO nanostructures, and 2.36 nM and 7.15 nM for rod-shaped ZnO nanostructures, respectively.
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Abubakar S, Tan ST, Liew JYC, Talib ZA, Sivasubramanian R, Vaithilingam CA, Indira SS, Oh WC, Siburian R, Sagadevan S, Paiman S. Controlled Growth of Semiconducting ZnO Nanorods for Piezoelectric Energy Harvesting-Based Nanogenerators. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1025. [PMID: 36985919 PMCID: PMC10056750 DOI: 10.3390/nano13061025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Zinc oxide (ZnO) nanorods have attracted considerable attention in recent years owing to their piezoelectric properties and potential applications in energy harvesting, sensing, and nanogenerators. Piezoelectric energy harvesting-based nanogenerators have emerged as promising new devices capable of converting mechanical energy into electric energy via nanoscale characterizations such as piezoresponse force microscopy (PFM). This technique was used to study the piezoresponse generated when an electric field was applied to the nanorods using a PFM probe. However, this work focuses on intensive studies that have been reported on the synthesis of ZnO nanostructures with controlled morphologies and their subsequent influence on piezoelectric nanogenerators. It is important to note that the diatomic nature of zinc oxide as a potential solid semiconductor and its electromechanical influence are the two main phenomena that drive the mechanism of any piezoelectric device. The results of our findings confirm that the performance of piezoelectric devices can be significantly improved by controlling the morphology and initial growth conditions of ZnO nanorods, particularly in terms of the magnitude of the piezoelectric coefficient factor (d33). Moreover, from this review, a proposed facile synthesis of ZnO nanorods, suitably produced to improve coupling and switchable polarization in piezoelectric devices, has been reported.
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Affiliation(s)
- Shamsu Abubakar
- Department of Physics, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Department of Physics, Yobe State University, Damaturu P.M.B. 1144, Yobe State, Nigeria
| | - Sin Tee Tan
- Department of Physics, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | | | - Zainal Abidin Talib
- Department of Physics, College of Natural Science, Jeonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si 54896, Jeollabuk-do, Republic of Korea
| | - Ramsundar Sivasubramanian
- Faculty of Innovation and Technology, Taylor’s University Malaysia, No. 1, Jalan Taylor’s, Subang Jaya 47500, Selangor, Malaysia
| | | | - Sridhar Sripadmanabhan Indira
- Faculty of Innovation and Technology, Taylor’s University Malaysia, No. 1, Jalan Taylor’s, Subang Jaya 47500, Selangor, Malaysia
| | - Won-Chun Oh
- Department of Advanced Materials Science and Engineering, Hanseo University, Seosan-si 356-706, Chungnam, Republic of Korea
| | - Rikson Siburian
- Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara, Padang Bulan, Medan 20155, Indonesia
| | - Suresh Sagadevan
- Nanotechnology & Catalysis Research Centre, Universiti Malaya, Kuala Lumpur 50603, Malaysia
| | - Suriati Paiman
- Department of Physics, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
- Functional Nanotechnology Devices Laboratory (FNDL), Institute of Nanoscience and Nanotechnology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
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Yudasari N, Hardiansyah A, Herbani Y, Isnaeni, Suliyanti MM, Djuhana D. Single-step laser ablation synthesis of ZnO–Ag nanocomposites for broad-spectrum dye photodegradation and bacterial photoinactivation. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2023.114717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Sharma N, Sahay PP. Effect of (Ce, Dy) co-doping on the microstructural, optical, and photoluminescence characteristics of solution combustion synthesized ZnO nanoparticles. LUMINESCENCE 2023; 38:196-207. [PMID: 36639986 DOI: 10.1002/bio.4441] [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: 11/23/2022] [Revised: 01/09/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023]
Abstract
Solution combustion synthesized ZnO nanoparticles that were Ce doped, Dy doped or co-doped at varying dopant concentrations were characterized for their microstructural, optical, and photoluminescence (PL) characteristics. The synthesized nanoparticles matched the standard hexagonal wurtzite structure of ZnO. The lattice fringes in the high-resolution transmission electron micrographs and the bright spotty rings in the selected area electron diffraction patterns authenticated the high crystallinity of the nanoparticles. The diffuse reflectance spectroscopy resolved the energy bandgap for the undoped ZnO as 3.18 eV, which decreased upon doping and co-doping. A sharp narrow ultraviolet emission peak at ~398 nm that originated from excitonic recombination was found in the PL spectra of the nanoparticles. The visible emission peaks in the PL spectra were assigned to the f-d and f-f electron transitions of Ce3+ and Dy3+ ions, respectively, in addition to different native defects in ZnO. The visible emissions (blue, yellow, and red) improved upon (Ce, Dy) co-doping, therefore (Ce, Dy) co-doped ZnO nanoparticles can be considered a promising luminescent material for the development of energy-saving light sources.
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Affiliation(s)
- Nikita Sharma
- Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
| | - Pradosh Prakash Sahay
- Department of Physics, Motilal Nehru National Institute of Technology Allahabad, Prayagraj, India
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Traditional vs. Microfluidic Synthesis of ZnO Nanoparticles. Int J Mol Sci 2023; 24:ijms24031875. [PMID: 36768199 PMCID: PMC9916368 DOI: 10.3390/ijms24031875] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 01/12/2023] [Accepted: 01/16/2023] [Indexed: 01/19/2023] Open
Abstract
Microfluidics provides a precise synthesis of micro-/nanostructures for various applications, including bioengineering and medicine. In this review article, traditional and microfluidic synthesis methods of zinc oxide (ZnO) are compared concerning particle size distribution, morphology, applications, reaction parameters, used reagents, and microfluidic device materials. Challenges of traditional synthesis methods are reviewed in a manner where microfluidic approaches may overcome difficulties related to synthesis precision, bulk materials, and reproducibility.
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Effect of Repeated Contact to Food Simulants on the Chemical and Functional Properties of Nano ZnO Composited LDPE Films for Reusable Food Packaging. Polymers (Basel) 2022; 15:polym15010009. [PMID: 36616360 PMCID: PMC9824836 DOI: 10.3390/polym15010009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
The effect of repeated contact with food simulants on the properties and functionality of zinc oxide (ZnO) in nanocomposite films was investigated to examine possible safety hazards from the point of view of long-term use as food packaging. Low-density polyethylene (LDPE) embedded with 5 wt% nano-ZnO was immersed in distilled water, 50% ethanol, 4% acetic acid, and n-heptane. The cycle of immersion-rinse-dry was repeated up to 40 times for same sample under constant condition. Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS), field emission-scanning electron microscopy (FE-SEM), and UV-Vis spectroscopy analyses were performed to identify the changes in the chemical and functional properties of the nanocomposite film. Acetic acid had the greatest impact on the LDPE-ZnO nanocomposite films, while other food simulants caused little change. A new carboxylate bond was formed by the reaction of ZnO with acetic acid, as evidenced by the FTIR spectra. In addition, XRD and XAS confirmed the phase changes of nano-ZnO into zinc salts such as zinc hydroxy acetate or zinc acetate dihydrate. Furthermore, the light barrier property of the nanocomposite film drastically decreased, owing to the change in the bandgap of ZnO and film morphology.
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Abu Nayem S, Shah SS, Chaity SB, Biswas BK, Nahar B, Aziz MA, Hossain MZ. Jute stick extract assisted hydrothermal synthesis of zinc oxide nanoflakes and their enhanced photocatalytic and antibacterial efficacy. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
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Some new antimicrobial/antioxidant nanostructure zinc complexes: Synthesis, crystal structure, Hirshfeld surface analyses and thermal behavior. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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Mohammed RS, Aadim KA, Ahmed KA. Estimation of in vivo toxicity of MgO/ZnO core/shell nanoparticles synthesized by eco-friendly non-thermal plasma technology. APPLIED NANOSCIENCE 2022; 12:3783-3795. [PMID: 36120604 PMCID: PMC9469819 DOI: 10.1007/s13204-022-02608-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 08/13/2022] [Indexed: 11/26/2022]
Abstract
MgO/ZnO core/shell nanoparticles were synthesized using the atmosphere plasma jets technique. The physical properties of the synthesized nanoparticles were investigated by a series of techniques, including X-ray diffraction (XRD), X-ray dispersive spectroscopy (EDS), and transmission electron microscopy (TEM). XRD and EDS analyses confirmed the purity of the nanoparticles synthesized with an average nanoparticle crystallite size of 36 nm. TEM confirmed the successful synthesis of spindle-shaped MgO/ZnO core/shell nanoparticles with an average size of 70 nm. To evaluate their toxicity, the MgO/ZnO core/shell nanoparticles were tested in vivo. Twenty-five albino female rats were randomly divided into five groups (five rats in each group); one was used as the control group and the other four as the experimental groups. Doses of the MgO/ZnO core/shell nanoparticles solution were orally administered to the test groups to examine the toxicity. For 30 consecutive days, each rat in test groups 2–5 received 1 mL of the MgO/ZnO core/shell nanoparticles solution at the respective doses of 1.25, 2.5, 5, and 10 mg L−1. The rats’ growth, hematology, thyroid gland function, and histopathology were examined after 30 days. Findings indicate that the growth retardation in the rats treated with MgO/ZnO core/shell nanoparticles may be due to their infection by Hyperthyroidism. The hematology results show the nonsignificant effect of MgO/ZnO core/shell nanoparticles on white blood cells, implying that these nanoparticles have no harmful impact on the immune system. Moreover, the levels of the thyroxine and thyroid‐stimulating hormones increased, and that of the triiodothyronine hormone decreased. The histological analysis results show that low concentrations of MgO/ZnO core/shell nanoparticles are safe for desired biomedical applications.
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Puspasari V, Ridhova A, Hermawan A, Amal MI, Khan MM. ZnO-based antimicrobial coatings for biomedical applications. Bioprocess Biosyst Eng 2022; 45:1421-1445. [PMID: 35608710 PMCID: PMC9127292 DOI: 10.1007/s00449-022-02733-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Accepted: 04/28/2022] [Indexed: 12/24/2022]
Abstract
Rapid transmission of infectious microorganisms such as viruses and bacteria through person-to-person contact has contributed significantly to global health issues. The high survivability of these microorganisms on the material surface enumerates their transmissibility to the susceptible patient. The antimicrobial coating has emerged as one of the most interesting technologies to prevent growth and subsequently kill disease-causing microorganisms. It offers an effective solution a non-invasive, low-cost, easy-in-use, side-effect-free, and environmentally friendly method to prevent nosocomial infection. Among antimicrobial coating, zinc oxide (ZnO) stands as one of the excellent materials owing to zero toxicity, high biocompatibility to human organs, good stability, high abundancy, affordability, and high photocatalytic performance to kill various infectious pathogens. Therefore, this review provides the latest research progress on advanced applications of ZnO nanostructure-based antibacterial coatings for medical devices, biomedical applications, and health care facilities. Finally, future challenges and clinical practices of ZnO-based antibacterial coating are addressed.
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Affiliation(s)
- Vinda Puspasari
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Aga Ridhova
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Angga Hermawan
- Research Center for Advanced Materials, National Research and Innovation Agency, South Tangerang, Banten, 15315, Indonesia
| | - Muhamad Ikhlasul Amal
- Research Center for Metallurgy, National Research and Innovation Agency, PUSPIPTEK Gd. 470, South Tangerang, Banten, 15315, Indonesia
| | - Mohammad Mansoob Khan
- Chemical Sciences, Faculty of Science, Universiti Brunei Darussalam, Jalan Tungku Link, Gadong, BE 1410, Brunei Darussalam.
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Nowak E, Chłopocka E, Szybowicz M, Stachowiak A, Koczorowski W, Piechowiak D, Miklaszewski A. The Influence of Aminoalcohols on ZnO Films’ Structure. Gels 2022; 8:gels8080512. [PMID: 36005113 PMCID: PMC9407612 DOI: 10.3390/gels8080512] [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: 06/15/2022] [Revised: 08/12/2022] [Accepted: 08/16/2022] [Indexed: 12/04/2022] Open
Abstract
Preparing structures with the sol-gel method often requires control of the basal plane of crystallites, crystallite structures, or the appearance of the voids. One of the critical factors in the formation of a layer are additives, such as aminoalcohols, which increase the control of the sol formation reaction. Since aminoalcohols differ in boiling points and alkalinity, their selection may play a significant role in the dynamics of structure formation. The main aim of this work is to examine the properties of ZnO layers grown using different aminoalcohols at different concentration rates. The layers were grown on various substrates, which would provide additional information on the behavior of the layers on a specific substrate, and the mixture was annealed at a relatively low temperature (400 °C). The research was conducted using monoethanolamine (MEA) and diethanolamine (DEA). The aminoalcohols were added to the solutions in equal concentrations. The microscopic image of the structure and the size of the crystallites were determined using micrographs. X-ray diffractometry and Raman spectroscopy were used for structural studies, phase analysis and to establish the purity of the obtained films. UV-vis absorption and photoluminescence were used to evaluate structural defects. This paper shows the influence of the stabilizer on the morphology of samples and the influence of the morphology and structure on the optical properties. The above comparison may allow the preparation of ZnO samples for specific applications.
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Affiliation(s)
- Ewelina Nowak
- Institute of Materials Research and Quantum Engineering, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
- Correspondence:
| | - Edyta Chłopocka
- Institute of Materials Research and Quantum Engineering, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
| | - Mirosław Szybowicz
- Institute of Materials Research and Quantum Engineering, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
| | - Alicja Stachowiak
- Institute of Physics, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
| | - Wojciech Koczorowski
- Institute of Physics, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
| | - Daria Piechowiak
- Institute of Materials Engineering, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
| | - Andrzej Miklaszewski
- Institute of Materials Engineering, Faculty of Materials Engineering and Technical Physics, Poznań University of Technology, Piotrowo 3, 60-965 Poznań, Poland
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Green Synthesis of Zinc Oxide Nanoparticles Using Red Seaweed for the Elimination of Organic Toxic Dye from an Aqueous Solution. MATERIALS 2022; 15:ma15155169. [PMID: 35897601 PMCID: PMC9330049 DOI: 10.3390/ma15155169] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/18/2022] [Accepted: 07/20/2022] [Indexed: 12/29/2022]
Abstract
This study aims to produce green zinc oxide nanoparticles (ZnO-NPs) derived from red seaweed (Pterocladia Capillacea) and evaluate their potential to absorb Ismate violet 2R (IV2R) ions from an aqueous solution. UV-vis spectrophotometry, Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), X-ray diffraction (XRD), and a Brunauer-Emmett-Teller surface area analysis (BET) were used to analyze the structural, morphological, and optical features of the synthesized nanoparticles. The change in color of the chemical solution revealed the formation of zinc oxide nanoparticles. The FTIR examination confirmed the synthesis of both Zn and ZnO nanoparticle powder, with a BET surface area of 113.751 m2 g-1 and an average pore size of 2.527 nm for the synthesized adsorbent. Furthermore, the maximum removal effectiveness of IV2R was 99% when 0.08 g ZnO-NPs was applied at a pH of 6, a temperature of 55 °C, and a contact time of 120 min. The dye adsorption capacity of the ZnO-NPs was 72.24 mg g-1. The adsorption process was also controlled by the Freundlich adsorption model and pseudo-second-order reaction kinetics. The adsorption of IV2R ions onto the ZnO-NPs could be represented as a nonideal and reversible sorption process of a nonuniform surface, according to Freundlich adsorption isotherms. In addition, the constant values of the model parameters were determined using various nonlinear regression error functions. Moreover, thermodynamic parameters such as entropy change, enthalpy change, and free energy change were investigated; the adsorption process was spontaneous and endothermic. The high capacity of the ZnO-NPs synthesized by red seaweed promotes them as promising substances for applications in water treatment for the removal of IV2R dye from aqueous systems.
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Jabeen N, Rehman AU, Hassan NU, Qaiser MA, Zaidi A, Khan MU, Khan IA, Nouman M. Boosting of Magnetic, Ferroelectric, Energy Storage Efficiency, and Piezoelectric Properties of Zn Intercalated SrBi4Ti4O15-Based Ceramics. MATERIALS 2022; 15:ma15145057. [PMID: 35888527 PMCID: PMC9319282 DOI: 10.3390/ma15145057] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Revised: 05/29/2022] [Accepted: 07/19/2022] [Indexed: 02/05/2023]
Abstract
An appropriate amount of Zn-ions are incorporated into the high Curie temperature bismuth layer-structure ferroelectric material to fabricate Sr0.2Na0.4Pr0.4Bi4Ti4O15:xwt%ZnO; (SNPBT:xZn), with x = 0, 0.10, 0.15, and 0.20 ceramic series to investigate the magnetic, ferroelectric, and energy storage efficiency and piezoelectric properties. Pure SNPBT and SNPBT:xZn ceramics have maintained their structure even after the intercalation of Zn-ions at the lattice sites of SNPBT. The addition of ZnO in SNPBT has improved the multifunctional properties of the material at x = 0.15. At room temperature, SNPBT:0.15Zn has shown a high relative density of 96%, exhibited weak ferromagnetic behavior along with a low saturation magnetization (Ms) of 0.028 emu/g with a low coercive field of 306 Oe, a high remnant polarization (Pr) of 9.04 µC/cm2, a recoverable energy density (Wrec) of ~0.5 J/cm3, an energy conversion efficiency (η) of ~41%, a high piezoelectric co-efficient (d33) of 21 pC/N, and an impedance of 1.98 × 107 Ω, which are much improved as compared to pure SBT or pure SNPBT ceramics. Dielectric Constant (ɛr) versus temperature plots present the sharp peak for SNPBT:0.15Zn ceramic at a Curie temperature (TC) ~ 605 °C, confirming the strong ferroelectric nature of the ceramic. Moreover, SNPBT:0.15Zn ceramic has shown strong, piezoelectric, thermally stable behavior, which remains at 76% (16 pC/N) of its initial value even after annealing at 500 °C. The achieved results clearly indicate that SNPBT:0.15Zn ceramic is a promising candidate for future wide-temperature pulse power applications and high-temperature piezoelectric devices.
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Affiliation(s)
- Nawishta Jabeen
- Department of Physics, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan;
- Correspondence:
| | - Altaf Ur Rehman
- Department of Physics, Riphah International University, Lahore 54000, Pakistan;
| | - Najam Ul Hassan
- Department of Physics, Division of Science and Technology, University of Education, Lahore 54000, Pakistan;
| | - Muhammad Adnan Qaiser
- College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China;
| | - Anum Zaidi
- Department of Physics, Fatima Jinnah Women University, Rawalpindi 46000, Pakistan;
| | - Muhammad Usman Khan
- Department of Physics, The University of Lahore, Sub-Campus Sargodha, Sargodha 40100, Pakistan; (M.U.K.); (I.A.K.); (M.N.)
| | - Imtiaz Ahmad Khan
- Department of Physics, The University of Lahore, Sub-Campus Sargodha, Sargodha 40100, Pakistan; (M.U.K.); (I.A.K.); (M.N.)
| | - Muhammad Nouman
- Department of Physics, The University of Lahore, Sub-Campus Sargodha, Sargodha 40100, Pakistan; (M.U.K.); (I.A.K.); (M.N.)
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Lai JM, Farooq MU, Sun YJ, Tan PH, Zhang J. Multiphonon Process in Mn-Doped ZnO Nanowires. NANO LETTERS 2022; 22:5385-5391. [PMID: 35748677 DOI: 10.1021/acs.nanolett.2c01428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The multiphonon process plays an essential role in understanding electron-phonon coupling, which significantly influences the optical and transport properties of solids. Multiphonon processes have been observed in many materials, but how to distinguish them directly by their spectral characteristics remains controversial. Here, we report high-order Raman scattering up to 10 orders and hot luminescence involving 11 orders of phonons in Mn-doped ZnO nanowires by selecting the excitation energy. Our results show that the intensity distribution of high-order Raman scattering obeys an exponential decrease as the order number increases, while hot luminescence is fitted with a Poisson distribution with a resonance factor. Their linewidth and frequency can be well explained by two different transition models. Our work provides a paradigm for understanding the multiphonon-involved decay process of an excited state and may inspire studies of the statistical characteristics of excited state decay.
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Affiliation(s)
- Jia-Min Lai
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Muhammad Umair Farooq
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Institute of Physics, The Islamia University of Bahawalpur, Bahawalpur 63100, Pakistan
| | - Yu-Jia Sun
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping-Heng Tan
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Zhang
- State Key Laboratory of Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
- CAS Center of Excellence in Topological Quantum Computation, University of Chinese Academy of Sciences, Beijing 100049, China
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Khalid A, Ahmad P, Muhammad S, Khan A, Khandaker MU, Alam MM, Asim M, Din IU, Iqbal J, Rehman IU, Razzaq Z, Pandian S, Sharma R, Emran TB, Sayyed MI, Aldawood S, Sulieman A. Synthesis of Boron-Doped Zinc Oxide Nanosheets by Using Phyllanthus Emblica Leaf Extract: A Sustainable Environmental Applications. Front Chem 2022; 10:930620. [PMID: 35903193 PMCID: PMC9314885 DOI: 10.3389/fchem.2022.930620] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 06/17/2022] [Indexed: 11/13/2022] Open
Abstract
The use of Phyllanthus emblica (gooseberry) leaf extract to synthesize Boron-doped zinc oxide nanosheets (B-doped ZnO-NSs) is deliberated in this article. Scanning electron microscopy (SEM) shows a network of synthesized nanosheets randomly aligned side by side in a B-doped ZnO (15 wt% B) sample. The thickness of B-doped ZnO-NSs is in the range of 20–80 nm. B-doped ZnO-NSs were tested against both gram-positive and gram-negative bacterial strains including Staphylococcus aureus, Pseudomonas aeruginosa, Klebsiella pneumonia, and Escherichia coli. Against gram-negative bacterium (K. pneumonia and E. coli), B-doped ZnO displays enhanced antibacterial activity with 26 and 24 mm of inhibition zone, respectively. The mass attenuation coefficient (MAC), linear attenuation coefficient (LAC), mean free path (MFP), half-value layer (HVL), and tenth value layer (TVL) of B-doped ZnO were investigated as aspects linked to radiation shielding. These observations were carried out by using a PTW® electron detector and VARIAN® irradiation with 6 MeV electrons. The results of these experiments can be used to learn more about the radiation shielding properties of B-doped ZnO nanostructures.
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Affiliation(s)
- Awais Khalid
- Department of Physics, Hazara University Mansehra, Mansehra, Pakistan
| | - Pervaiz Ahmad
- Department of Physics, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
- *Correspondence: Pervaiz Ahmad, ; Mayeen Uddin Khandaker,
| | - Saleh Muhammad
- Department of Physics, Hazara University Mansehra, Mansehra, Pakistan
| | - Abdulhameed Khan
- Department of Biotechnology, University of Azad Jammu and Kashmir, Muzaffarabad, Pakistan
| | - Mayeen Uddin Khandaker
- Center for Applied Physics and Radiation Technologies, School of Engineering and Technology, Sunway University, Subang Jaya, Malaysia
- Department of General Educational Development, Faculty of Science and Information Technology, Daffodil International University, Dhaka, Bangladesh
- *Correspondence: Pervaiz Ahmad, ; Mayeen Uddin Khandaker,
| | - Md Mottahir Alam
- Department of Electrical and Computer Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Mohd Asim
- Department of Chemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Israf Ud Din
- Department of Chemistry, College of Science and Humanities, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Jibran Iqbal
- College of Natural and Health Sciences, Zayed University, Abu Dhabi, United Arab Emirates
| | - Ibad Ur Rehman
- Department of Physics, Hazara University Mansehra, Mansehra, Pakistan
| | - Zohaib Razzaq
- Department of Physics, Hazara University Mansehra, Mansehra, Pakistan
| | - Sivakumar Pandian
- School of Petroleum Technology, Pandit Deendayal Energy University, Gandhinagar, India
| | - Rohit Sharma
- Department of Rasa Shastra & Bhaishajya Kalpana, Faculty of Ayurveda, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India
| | - Talha Bin Emran
- Department of Pharmacy, BGC Trust University Bangladesh, Chittagong, Bangladesh
- Department of Pharmacy, Faculty of Allied Health Sciences, Daffodil International University, Dhaka, Bangladesh
| | - M. I. Sayyed
- Department of Physics, Faculty of Science, Isra University, Amman, Jordan
| | - Saad Aldawood
- Physics and Astronomy Department, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - Abdelmoneim Sulieman
- Department of Radiology and Medical Imaging, Prince Sattam Bin Abdulaziz University, Al-Kharj, Saudi Arabia
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Kamal Hossain M, Ahmed Drmosh Q. Noble Metal-Decorated Nanostructured Zinc Oxide: Strategies to Advance Chemiresistive Hydrogen Gas Sensing. CHEM REC 2022; 22:e202200090. [PMID: 35703683 DOI: 10.1002/tcr.202200090] [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: 04/19/2022] [Revised: 05/27/2022] [Indexed: 11/10/2022]
Abstract
Hydrogen (H2 ) is known as the key player in the alternative and renewable energy revolution and henceforth H2 production, transportation, storage and usage have been a major interest of current research. However, due to severe safety concerns, strategies are indispensable to devise superior H2 sensors, particularly selective and sensitive H2 sensors. In this personal account, three specific gas sensing constructs; zinc oxide (ZnO) nanostructures-, noble metal nanoparticles-decorated ZnO- and noble metal nanoparticles-decorated ZnO nanostructures on reduced graphene oxide (rGO)-based H2 sensors have been demonstrated. The dynamic response and H2 sensing characteristics of ZnO nanostructures-based H2 sensors were found to be improved compared to those of pristine ZnO. High-resolution field emission scanning electron microscopy (FESEM) confirmed the flower-like nanostructures that had higher surface area around the nanoscale petals. The mechanism behind the superior sensing characteristics of ZnO nanostructures-based H2 sensor has been demonstrated. Decoration of ZnO nanostructures with noble metal nanoparticles, particularly platinum (Pt) and gold (Au) was observed to be useful in achieving better H2 sensing performance compared to that of ZnO nanostructures. The Pt- and Au-decorated ZnO nanostructures followed the well-known "Spill-over" mechanism in enhancing the H2 sensing characteristics. Abundant free electrons/holes generation and higher conductivity are two important parameters for designing selective and sensitive gas sensors. In this context, a hybrid nanocomposite, rGO-ZnO has been developed and decorated with noble metal nanoparticles, particularly Pt and Au. The ultimate sensing material has been characterized and compared to those of pristine ZnO, ZnO nanostructures and Pt- and Au-decorated ZnO for H2 gas sensing applications. Such systemic and focus strategies is critical not only for developing efficient H2 gas sensors but also for better understanding the mechanisms underlying such superior performance.
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Affiliation(s)
- Mohammad Kamal Hossain
- Interdisciplinary Research Center for Renewable Energy and Power Systems (IRC-REPS), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
| | - Qasem Ahmed Drmosh
- Interdisciplinary Research Center for Hydrogen and Energy Storage (IRC-HES), Research Institute, King Fahd University of Petroleum & Minerals (KFUPM), Dhahran, 31261, Saudi Arabia
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Doping Zinc Oxide Nanoparticles by Magnetic and Nonmagnetic Nanocomposites Using Organic Species for Fast Removal of Industrial Pollutants from Water in UV Light. CRYSTALS 2022. [DOI: 10.3390/cryst12060811] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Advanced photo-active materials have attracted attention for their potential uses in water purification. In this study, a novel and facile route was used for designing nanohybrids to be valuable sources for producing effective photocatalysts for purifying water from the colored pollutants. Host-guest interaction and intercalation reactions used long chains of hydrocarbons of n-capric acid and stearic acid to facilitate incorporation of fine particles of cobalt iron oxide nanocomposite with the internal surface of the nanolayers of Al/Zn for building nanohybrids. The thermal decomposition of the prepared nanohybrids led to formation of zinc oxide nanoparticles doped with multi-oxides of magnetic and non-magnetic dopants. These dopants created new optical centers causing a strong reduction in the band gap energy from 3.30 eV to 2.60 eV. This positive effect was confirmed by a complete removal of the dye of Naphthol green B from water after 15 min of light irradiation. Moreover, a kinetic study showed that the reaction rate of photocatalytic degradation of the pollutants was faster than that of the conventional photocatalysts. Finally, this route was effective for producing benign and fast solutions for purifying water in addition to environment-related problems.
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40
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Ichipi EO, Tichapondwa SM, Chirwa EM. Plasmonic effect and bandgap tailoring of Ag/Ag2S doped on ZnO nanocomposites for enhanced visible-light photocatalysis. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103596] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Sazanova TS, Mochalov LA, Logunov AA, Kudryashov MA, Fukina DG, Vshivtsev MA, Prokhorov IO, Yunin PA, Smorodin KA, Atlaskin AA, Vorotyntsev AV. Influence of Temperature Parameters on Morphological Characteristics of Plasma Deposited Zinc Oxide Nanoparticles. NANOMATERIALS 2022; 12:nano12111838. [PMID: 35683699 PMCID: PMC9182487 DOI: 10.3390/nano12111838] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 05/19/2022] [Accepted: 05/25/2022] [Indexed: 01/14/2023]
Abstract
Zinc oxide nanoparticles were obtained by plasma-enhanced chemical vapor deposition (PECVD) under optical emission spectrometry control from elemental high-purity zinc in a zinc–oxygen–hydrogen plasma-forming gas mixture with varying deposition parameters: a zinc source temperature, and a reactor temperature in a deposition zone. The size and morphological parameters of the zinc oxide nanopowders, structural properties, and homogeneity were studied. The study was carried out with use of methods such as scanning electron microscopy, X-ray structural analysis, and Raman spectroscopy, as well as statistical methods for processing and analyzing experimental data. It was established that to obtain zinc oxide nanoparticles with a given size and morphological characteristics using PECVD, it is necessary (1) to increase the zinc source temperature to synthesize more elongated structures in one direction (and vice versa), and (2) to decrease the reactor temperature in the deposition zone to reduce the transverse size of the deposited structures (and vice versa), taking into account that at relatively low temperatures instead of powder structures, films can form.
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Affiliation(s)
- Tatyana Sergeevna Sazanova
- Laboratory of Membrane and Catalytic Processes, Nanotechnology and Biotechnology Department, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Minin Str. 24, 603950 Nizhny Novgorod, Russia;
- Correspondence:
| | - Leonid Alexandrovich Mochalov
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Alexander Alexandrovich Logunov
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Mikhail Alexandrovich Kudryashov
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Diana Georgievna Fukina
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Maksim Anatolevich Vshivtsev
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Igor Olegovich Prokhorov
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Pavel Andreevich Yunin
- Department for Technology of Nanostructures and Devices, Institute for Physics of Microstructures of the Russian Academy of Science, Academic Str. 7, Afonino, 603087 Nizhny Novgorod, Russia;
| | - Kirill Alexandrovich Smorodin
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
| | - Artem Anatolevich Atlaskin
- Laboratory of SMART Polymeric Materials and Technologies, Mendeleev University of Chemical Technology, Miusskaya Sq. 9, 125047 Moscow, Russia;
| | - Andrey Vladimirovich Vorotyntsev
- Laboratory of Membrane and Catalytic Processes, Nanotechnology and Biotechnology Department, Nizhny Novgorod State Technical University n.a. R.E. Alekseev, Minin Str. 24, 603950 Nizhny Novgorod, Russia;
- Chemical Engineering Laboratory, Research Institute for Chemistry, Lobachevsky State University of Nizhny Novgorod, Gagarin Ave. 23, 603022 Nizhny Novgorod, Russia; (L.A.M.); (A.A.L.); (M.A.K.); (D.G.F.); (M.A.V.); (I.O.P.); (K.A.S.)
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Abstract
Zinc oxide is one of the most popular materials for acoustoelectronic sensors and vibro-piezo-transducers used in nano-piezo-generators. In the present paper, thick piezoelectric ZnO films are fabricated on both sides of various substrates using magnetron sputtering technique. It is shown that the main problem for double film deposition is the difference in thermal expansion coefficients of the ZnO films and the substrate materials. The problem is solved by decreasing the plate temperature up to 140 °C, reducing the growing rate up to 0.8 ± 0.05 μm/h, and diminishing the oxygen content in Ar mixture up to 40%. Using the modified sputtering conditions, the ZnO films with thickness up to 15 μm, grain size 0.3 μm, and piezoelectric module as large as 7.5 × 10−12 C/N are fabricated on both faces of quartz and lithium niobate plates as well as on flexible polyimide flexible film known as Kapton. The films are characterized by chemical composition, crystallographic orientation, piezoelectric effect, and acoustic wave generation. They are applied for vibro-piezo-transducer based on flexible ZnO/Kapton/Al/ZnO/Al structure. When the structure is mechanical excited, the variable electric voltage of about 35 mV is generated. The value of the voltage is sufficient for an unstable energy source used in autonomic micro-energetic energy-store systems.
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Improved Optoelectronic Characteristics of Ga-In co-Doped ZnO UV Photodetectors by Asymmetric Metal Contact Structure. CRYSTALS 2022. [DOI: 10.3390/cryst12050746] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
Transparent Ga and In co-doped ZnO (ZnO:Ga-In) semiconductor thin films were deposited on Corning glass substrates by the sol-gel spin-coating process. The ZnO:Ga-In thin films were used as the sensing layer of metal–semiconductor–metal (MSM)-type ultraviolet (UV) photodetectors (PDs). In this study, the optoelectronic characteristics of ZnO:Ga-In MSM PDs with symmetrical interdigital electrodes (Al–Al) and asymmetrical interdigital electrodes (Al–Au) were compared. The as-prepared ZnO:Ga-In thin films were polycrystalline, and they had a single-phase hexagonal wurtzite structure and high transparency (~88.4%) in the visible region. The MSM-PDs with asymmetric electrodes had significantly reduced dark current (9.6 × 10−5 A at 5 V) according to the current-voltage (I-V) characteristics and higher photoresponse properties than those of the MSM-PDs with symmetric electrodes, according to the current-time (I-t) characteristics. In addition, the Al–Au devices were self-powered without an applied bias voltage. The photocurrent was 6.0 × 10−5 A; the sensitivity and responsivity were 0.25 and 0.03 mA/W, respectively, under UV illumination.
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Monotheca buxifolia Driven Synthesis of Zinc Oxide Nano Material Its Characterization and Biomedical Applications. MICROMACHINES 2022; 13:mi13050668. [PMID: 35630135 PMCID: PMC9146105 DOI: 10.3390/mi13050668] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 04/17/2022] [Accepted: 04/20/2022] [Indexed: 01/27/2023]
Abstract
The current study demonstrates a sophisticated and environmentally friendly synthesis of zinc oxide nanoparticles (ZnO-NPs) for a range of biological and environmental applications using Monotheca buxifolia as a bio-source. At the nanometer scale, a simple aqueous extract from Monotheca buxifolia was used to convert Zn into stable elemental zinc (Zn0). With an average size of 45.8 nm and a spherical shape, the NPs were stable and pure. The nanoparticles studied here were tested in vitro for bactericide, fungicide, biocompatibility, leishmaniasis, anti-diabetic effect, antioxidant effect, and anti-Alzheimer’s effect. According to our results, Monotheca buxifolia mediated ZnO-NPs are highly effective against spore-forming fungal strains and MDR bacterial strains. All examined bacterial isolates of UTI (urinary tract infection) were resistant to non-coated antibiotics; however, adding 1% of the produced ZnO-NPs to the treatments increased their bactericidal activity significantly. The NPs also showed dose-dependent cytotoxicity against Leishmania tropica parasites, with an LC50 of 248 μg/mL for promastigote parasites and 251 μg/mL for amastigote parasites. In addition, a significant inhibition of α-glucosidase, α-amylase, butyrylcholinesterase (BChE), and acetylcholinesterase (AChE) was discovered, indicating anti-Alzheimer’s and anti-diabetic effects. The biocompatibility of the particles with human red blood cells was also observed. Due to their environmentally friendly production, biological safety, and exceptional physicochemical properties, ZnO-NPs could be used as a new competitor for several biological and environmental applications.
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Shawky A, Albukhari SM. Design of Ag3VO4/ZnO nanocrystals as visible-light-active photocatalyst for efficient and rapid oxidation of ciprofloxacin antibiotic waste. J Taiwan Inst Chem Eng 2022. [DOI: 10.1016/j.jtice.2022.104268] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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46
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Lucilha AC, Camargo LP, Liberatti VR, Barbosa ECM, Dall’Antonia LH. Zn1-xCoxO vs Ag-ZnO photoanodes design via combustion: Characterization and application in photoelectrocatalysis. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.128261] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shawky A, Alshaikh H. Cobalt ferrite-modified sol-gel synthesized ZnO nanoplatelets for fast and bearable visible light remediation of ciprofloxacin in water. ENVIRONMENTAL RESEARCH 2022; 205:112462. [PMID: 34863987 DOI: 10.1016/j.envres.2021.112462] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/29/2021] [Accepted: 11/26/2021] [Indexed: 06/13/2023]
Abstract
Currently, metal oxide photocatalysts is a green and facile tool for the elimination of emerging pollutants utilizing light illumination. Though, the wide bandgap energy (Eg), rapid recombination of photogenerated carriers, and photostability of these oxides represent critical issues before the actual application. Herein, we familiarise a sol-gel based synthesis of ZnO hexagonal nanoplatelets modified with CoFe2O4 (CFO) nanoparticles at minor loading (1.0-4.0 wt %) to yield CFO/ZnO nanoheterojunctions. The CFO/ZnO unveiled mesostructured surfaces at surface areas of 102-120 m2 g-1 and photoactive in the visible region with high. The CFO addition to ZnO reduced its Eg from 3.14 to 2.66 eV. The formed nanoheterojunctions were applied to remediate ciprofloxacin (CPF), as an antibiotic pollutant in wastewater. The 2.4 g L-1 3.0 wt % CFO-added ZnO exhibited a 100% removal of 10-ppm CPF within 45 min of visible-light irradiation and sustainable recycling ability for five consecutive runs at 97%. The sustainable performance of CFO/ZnO is ascribed to the suppression of photogenerated carriers and reduction of E by p-n nanoheterojunction formation. This study broadens the way for nanoheterojunction oxides for the destruction of pharmaceutical wastes under visible-light illumination.
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Affiliation(s)
- Ahmed Shawky
- Nanomaterials and Nanotechnology Department, Advanced Materials Institute, Central Metallurgical R&D Institute (CMRDI), P.O. Box 87, Helwan, 11421, Cairo, Egypt.
| | - Hind Alshaikh
- Chemistry Department, Science and Arts College, Rabigh Campus, King Abdulaziz University, Jeddah, Saudi Arabia.
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Abstract
There is an urgent need to reduce global greenhouse gas emissions, yet to date the decarbonization of the transportation industry has been slow and of particular difficulty. While fossil fuel replacements such as biodiesel may aid the transition to a less polluting society, production at the industrial scales required is currently heavily dependent on chemical catalysis. Conventional two-step homogenous routes require the challenging separation of catalyst from the obtained product; however, heterogenous solid catalysts bring new considerations such as material stability, surface area, porosity, deactivation effects, and reduced reactivities under mild conditions. Nanomaterials present an attractive solution, offering the high reactivity of homogenous catalysts without complex recyclability issues. Slightly less reactive, acidic sulfated nanomaterials may also demonstrate greater stability to feedstock impurity, extending lifetime and improved versatility to a range of starting feeds. There remains, however, much work to be done in demonstrating the full-scale feasibility of such catalysts. This review explores recent developments over time in acidic sulfated nanocatalysis for biodiesel production, with particular focus on metal oxides, magnetic nanoparticles, silica-supported nanomaterials, and acidic carbon nanocatalysts. Included are various summaries of current progress in the literature, as well as recommendations for future research.
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Muon Irradiation of ZnO Rods: Superparamagnetic Nature Induced by Defects. NANOMATERIALS 2022; 12:nano12020184. [PMID: 35055202 PMCID: PMC8780577 DOI: 10.3390/nano12020184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 12/30/2021] [Accepted: 12/31/2021] [Indexed: 02/01/2023]
Abstract
In this work, through a combination of photoluminescence spectroscopy, X-ray powder diffraction and magnetic measurements, it is determined that ZnO rods, made hydrothermally using a combination of magnetic field with respect to the force of gravity, exhibit superparamagnetic properties which emerge from Zn defects. These Zn defects result in a size-dependent superparamagnetic property of the rods. Red emissions, characteristic of Zn vacancies, and magnetic susceptibility both increased with decreasing rod size. The ZnO rods have significantly larger superparamagnetic cluster sizes (one order of magnitude) and lower fluctuation rates when compared to other superparamagnetic particles.
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50
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Abstract
In recent years, the development of renewable energy alternatives to traditional fossil fuels has become one of the major challenges all over the world, due to the decline of fossil fuel reserves and their effect on global warming. Biodiesel has become a popular alternative energy source to reduce gas emissions compared to traditional fossil fuels. According to statistics, a nine-fold increase in global biofuel production between 2000 and 2020 was observed. However, its production generates a large amount of glycerol as a by-product, posing an environmental problem when disposed directly in landfills or by incineration. Therefore, low-value glycerol should be converted into high value-added derivatives. As glycerol carbonate is one of the most important derivatives of glycerol, this review aims to discuss the studies over the last ten years about glycerol carbonate synthetic methods, including the typical routes such as phosgene, esterification reaction, urea, oxidative and direct carbonylation as well as several rare synthetic procedures. At the same time, it summarizes the different catalytic reaction systems of each route comparing the advantages and disadvantages of various catalysts and evaluating their catalytic activity. Finally, the future development of glycerol carbonate synthesis is prospected from the point of view of development, technology research and industrialization.
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