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Aouadi A, Hamada Saud D, Rebiai A, Achouri A, Benabdesselam S, Mohamed Abd El-Mordy F, Pohl P, Ahmad SF, Attia SM, Abulkhair HS, Ararem A, Messaoudi M. Introducing the antibacterial and photocatalytic degradation potentials of biosynthesized chitosan, chitosan-ZnO, and chitosan-ZnO/PVP nanoparticles. Sci Rep 2024; 14:14753. [PMID: 38926522 PMCID: PMC11208610 DOI: 10.1038/s41598-024-65579-z] [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: 05/07/2024] [Accepted: 06/21/2024] [Indexed: 06/28/2024] Open
Abstract
The development of nanomaterials has been speedily established in recent years, yet nanoparticles synthesized by traditional methods suffer unacceptable toxicity and the sustainability of the procedure for synthesizing such nanoparticles is inadequate. Consequently, green biosynthesis, which employs biopolymers, is gaining attraction as an environmentally sound alternative to less sustainable approaches. Chitosan-encapsulated nanoparticles exhibit exceptional antibacterial properties, offering a wide range of uses. Chitosan, obtained from shrimp shells, aided in the environmentally friendly synthesis of high-purity zinc oxide nanoparticles (ZnO NPs) with desirable features such as the extraction yield (41%), the deacetylation (88%), and the crystallinity index (74.54%). The particle size of ZnO NPs was 12 nm, while that of chitosan-ZnO NPs was 21 nm, and the bandgap energies of these nanomaterials were 3.98 and 3.48, respectively. The strong antibacterial action was demonstrated by ZnO NPs, chitosan-ZnO NPs, and chitosan-ZnO/PVP, particularly against Gram-positive bacteria, making them appropriate for therapeutic use. The photocatalytic degradation abilities were also assessed for all nanoparticles. At a concentration of 6 × 10-5 M, chitosan removed 90.5% of the methylene blue (MB) dye, ZnO NPs removed 97.4%, chitosan-coated ZnO NPs removed 99.6%, while chitosan-ZnO/PVP removed 100%. In the case of toluidine blue (TB), at a concentration of 4 × 10-3 M, the respective efficiencies were 96.8%, 96.8%, 99.5%, and 100%, respectively. Evaluation of radical scavenger activity revealed increased scavenging of ABTS and DPPH radicals by chitosan-ZnO/PVP compared to individual zinc oxide or chitosan-ZnO, where the IC50 results were 0.059, 0.092, 0.079 mg/mL, respectively, in the ABTS test, and 0.095, 0.083, 0.061, and 0.064 mg/mL in the DPPH test, respectively. Moreover, in silico toxicity studies were conducted to predict the organ-specific toxicity through ProTox II software. The obtained results suggest the probable safety and the absence of organ-specific toxicity with all the tested samples.
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Affiliation(s)
- Abdelatif Aouadi
- Process Engineering Laboratory, Applied Sciences Faculty, Kasdi Merbah University, 30000, Ouargla, Algeria
- Laboratory of Applied Chemistry and Environment, Faculty of Exact Sciences, University of Hamma Lakhdar El-Oued, B.P.789, 39000, El-Oued, Algeria
| | - Djamila Hamada Saud
- Process Engineering Laboratory, Applied Sciences Faculty, Kasdi Merbah University, 30000, Ouargla, Algeria
| | - Abdelkrim Rebiai
- Laboratory of Applied Chemistry and Environment, Faculty of Exact Sciences, University of Hamma Lakhdar El-Oued, B.P.789, 39000, El-Oued, Algeria
| | - Abdelhak Achouri
- Laboratory of Applied Chemistry and Environment, Faculty of Exact Sciences, University of Hamma Lakhdar El-Oued, B.P.789, 39000, El-Oued, Algeria
- Water, Environment and Sustainable Development Laboratory (2E2D), Faculty of Technology, University of Blida 1, Route Soumâa, BP 270, Blida, Algeria
| | - Soulef Benabdesselam
- Laboratory of Water and Environmental Engineering in the Saharan Environment, Process Engineering Department, Faculty of Applied Sciences, Kasdi Merbah-Ouargla University, Ouargla, Algeria
| | - Fatma Mohamed Abd El-Mordy
- Department of Pharmacognosy and Medicinal Plants, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, 11754, Egypt
| | - Pawel Pohl
- Department of Analytical Chemistry and Chemical Metallurgy, Faculty of Chemistry, University of Science and Technology, Wyspianskiego 27, 50-370, Wrocław, Poland
| | - Sheikh F Ahmad
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Sabry M Attia
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, 11451, Riyadh, Saudi Arabia
| | - Hamada S Abulkhair
- Pharmaceutical Organic Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Nasr City, Cairo, 11884, Egypt
- Pharmaceutical Chemistry Department, Faculty of Pharmacy, Horus University-Egypt, International Coastal Road, New Damietta, 34518, Egypt
| | - Abderrahmane Ararem
- Nuclear Research Centre of Birine, P.O. Box 180, 17200, Ain Oussera, Djelfa, Algeria
| | - Mohammed Messaoudi
- Nuclear Research Centre of Birine, P.O. Box 180, 17200, Ain Oussera, Djelfa, Algeria.
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Sathiyamoorthi E, Lee J, Albeshr MF, Ramesh MD, M R, Brindhadevi K. Effect of solar powered MgO/graphene nano catalysed biodiesel production from Scomber scombrus. ENVIRONMENTAL RESEARCH 2024; 258:119407. [PMID: 38897435 DOI: 10.1016/j.envres.2024.119407] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2024] [Revised: 06/04/2024] [Accepted: 06/10/2024] [Indexed: 06/21/2024]
Abstract
The aim of the work is to find the efficiency of solar power in biodiesel preparation from mackerel fish. The paper also focusses on the ability of MgO/graphene prepared by one-pot synthesis using combustion methodology. The physicochemical properties of the material were analysed by XRD, N2 sorption studies, BET sorption analysis and SEM. The adsorption studies revealed the porosity of the graphene is intact, and the morphology studies indicated that MgO is uniformly distributed on the graphene surface. The highest biodiesel yield of 98.95% was obtained using the solar-powered Fresnel solar concentrator at 12.30 p.m in 6 min reaction time using 3 wt% MgO/GO catalyst at 65 °C. Conventional heating produced only 75% biodiesel at the same reaction condition, consuming25 min to complete. The solar assisted biodiesel had better HHV of 37.81 MJ/Kg, viscosity of 4.3 mm2/s, pour point of -15 °C, and a density of 0.875 g/mL. The optimized catalyst showed a shelf life of 5 cycles. The results portray the efficacy of natural energy source in alternative liquid fuel production.
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Affiliation(s)
- Ezhaveni Sathiyamoorthi
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Jintae Lee
- School of Chemical Engineering, Yeungnam University, Gyeongsan, Gyeongbuk, 38541, Republic of Korea
| | - Mohammed F Albeshr
- Department of Zoology, College of Sciences, King Saud University, P.O. Box. 2455, Riyadh, 11451, Saudi Arabia
| | - M D Ramesh
- Instituto de Alta Investigación, Universidad de Tarapacá, Arica, 1000000, Chile
| | - Rithika M
- Center for Global Health Research, Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences, India
| | - Kathirvel Brindhadevi
- Institute of Research and Development, Duy Tan University, Da Nang, Viet Nam; School of Engineering & Technology, Duy Tan University, Da Nang, Viet Nam.
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Kwang Benno Park H, Kumar P, Kebaili I, Boukhris I, Hwan Joo Y, Hyun Sung T, Kumar A. Optimization and modelling of magnesium oxide (MgO) photocatalytic degradation of binary dyes using response surface methodology. Sci Rep 2024; 14:9412. [PMID: 38658625 PMCID: PMC11043076 DOI: 10.1038/s41598-024-56797-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Accepted: 03/11/2024] [Indexed: 04/26/2024] Open
Abstract
Textile industry dye effluent contains a mixture of different kinds of dyes. Many times, photocatalysis is targeted as a solution for the treatment of dye effluent from the textile industry. Many researches have been published related to the photocatalysis of single textile dyes but in the real-world scenario, effluent is a mixture of dyes. Magnesium oxide (MgO) is used as a photocatalyst to treat a mixture (binary solution) of Methylene blue (MB) and Methylene violet (MV) along with individual MB and MV dyes in this article. MgO shows remarkable photocatalytic activity at about 93 and 88% for MB and MV dye in binary solution within 135 min. Furthermore, to study the influence of process parameters, experiments are designed with the help of the central composite design (CCD), and Response surface methodology (RSM) is used to study the interactions between parameters. For this study, five parameters are selected i.e., Photocatalyst dosage, initial concentration of both dyes, time of exposure to the light source, and pH of the binary solution. The photocatalytic process is also optimized and finally optimization of process parameters is validated with an experiment. The result of the validation experiment is very close to the predicted photocatalytic activity.
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Affiliation(s)
| | - Pushpendra Kumar
- Indian Institute of Technology Mandi, Mandi, Himachal Pradesh, 175005, India
| | - Imen Kebaili
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Imed Boukhris
- Department of Physics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia
| | - Yun Hwan Joo
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Tae Hyun Sung
- Department of Electrical Engineering, Hanyang University, Seoul, 04763, South Korea
| | - Anuruddh Kumar
- Center for Creative Convergence Education, Hanyang University, Seoul, 04763, South Korea.
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Zaater A, Serhoud MO, Ben Amor I, Zeghoud S, Hemmami A, Rebiai A, Bouras Y, Laiche AT, Alsalme A, Cornu D, Bechelany M, Barhoum A. Exploring the potential of a Ephedra alata leaf extract: Phytochemical analysis, antioxidant activity, antibacterial properties, and green synthesis of ZnO nanoparticles for photocatalytic degradation of methylene blue. Front Chem 2024; 12:1367552. [PMID: 38449480 PMCID: PMC10914993 DOI: 10.3389/fchem.2024.1367552] [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: 01/08/2024] [Accepted: 02/13/2024] [Indexed: 03/08/2024] Open
Abstract
Ephedra alata leaf extracts have therapeutic properties and contain various natural compounds known as phytochemicals. This study assessed the phytochemical content and antioxidant effects of a Ephedra alata leaf extract, as well as zinc oxide (ZnO) nanoparticle production. The extract contained phenolic acids, including vanillic acid, chlorogenic acid, gallic acid, p-coumaric acid, vanillin and rutin. Its total phenolic content and total flavonoid content were 48.7 ± 0.9 mg.g-1 and 1.7 ± 0.4 mg.g-1, respectively. The extract displayed a DPPH inhibition rate of 70.5%, total antioxidant activity of 49.5 ± 3.4 mg.g-1, and significant antimicrobial activity toward Gram-positive and negative bacteria. The synthesized ZnO nanoparticles had spherical shape, crystallite size of 25 nm, particle size between 5 and 30 nm, and bandgap energy of 3.3 eV. In specific conditions (90 min contact time, pH 7, and 25°C), these nanoparticles efficiently photodegraded 87% of methylene blue, suggesting potential applications for sustainable water treatment and pollution control.
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Affiliation(s)
- Abdelmalek Zaater
- Biodiversity Laboratory and Application of Biotechnology in Agriculture, University of El Oued, El Oued, Algeria
- Department of Agronomy, Faculty of Nature and Life Sciences, University of El Oued, El Oued, Algeria
| | - Mohammed Oualid Serhoud
- Laboratory of Community and Family, University of Batna 1, Batna, Algeria
- Department of Sociology and Demography, Faculty of Humanities and Social Sciences, University of Batna 1, Batna, Algeria
| | - Ilham Ben Amor
- Department of Process Engineering and Petrochemical, Faculty of Technology, University of El Oued, El Oued, Algeria
- Renewable Energy Development Unit in Arid Zones (UDERZA), University of El Oued, El Oued, Algeria
| | - Soumeia Zeghoud
- Department of Process Engineering and Petrochemical, Faculty of Technology, University of El Oued, El Oued, Algeria
- Renewable Energy Development Unit in Arid Zones (UDERZA), University of El Oued, El Oued, Algeria
| | - Amira Hemmami
- Biodiversity Laboratory and Application of Biotechnology in Agriculture, University of El Oued, El Oued, Algeria
- Department of Biology, Faculty of Natural Science and Life, University of El Oued, El Oued, Algeria
| | - Abdelkrim Rebiai
- Laboratory of Applied Chemistry and Environment, Faculty of Exact Sciences, University of El Oued, El Oued, Algeria
- Chemistry Department, Faculty of Exact Sciences, University of El Oued, El Oued, Algeria
| | - Yacine Bouras
- Department of Biology, Faculty of Natural Science and Life, University of El Oued, El Oued, Algeria
- Laboratory Biology, Environment and Health (LBEH), University of El Oued, El Oued, Algeria
| | - Ammar Touhami Laiche
- Biodiversity Laboratory and Application of Biotechnology in Agriculture, University of El Oued, El Oued, Algeria
- Department of Biology, Faculty of Natural Science and Life, University of El Oued, El Oued, Algeria
| | - Ali Alsalme
- Department of Chemistry, College of Science, King Saud University, Riyadh, Saudi Arabia
| | - David Cornu
- Institut Européen des Membranes (IEM), UMR, University Montpellier, ENSCM, CNRS, Montpellier, France
| | - Mikhael Bechelany
- Institut Européen des Membranes (IEM), UMR, University Montpellier, ENSCM, CNRS, Montpellier, France
- Gulf University for Science and Technology, GUST, Hawally, Kuwait
| | - Ahmed Barhoum
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, Cairo, Egypt
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Kumar SA, Rosaline DR, Foletto EL, Dotto GL, Inbanathan SSR, Muralidharan G. Application of green-synthesized cadmium oxide nanofibers and cadmium oxide/graphene nanosheet nanocomposites as alternative and efficient photocatalysts for methylene blue removal from aqueous matrix. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:117390-117403. [PMID: 37870670 DOI: 10.1007/s11356-023-30425-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2023] [Accepted: 10/08/2023] [Indexed: 10/24/2023]
Abstract
For the first time, cadmium oxide (CdO) nanofibers (NFs) and graphene nanosheet (GNS)-doped CdO nanocomposites (NCs) have been synthesized by a simple green route using green tea (Camellia sinensis) extract, for subsequent application as photocatalysts for methylene blue (MB) removal from an aqueous matrix. In addition, the materials were tested as working electrodes for supercapacitors. The prepared samples were analyzed by FESEM, UV-Vis spectroscopy, FTIR, and X-ray diffraction (XRD). FESEM revealed that the obtained NPs and NCs show fiber-shaped nanostructure. FTIR confirmed the presence of biomolecules on CdO and carbon compounds on CdO/GNS, while XRD exhibited the cubic crystalline structure of obtained NPs and NCs. The Rietveld refinement using XRD data was performed to ascertain the crystallographic characteristics of the produced samples and look into lattice imperfections. UV-Vis spectroscopy evaluated the optical bandgap energies of CdO and CdO/GNS NCs. The CdO/GNS NCs demonstrated a fast cleavage of the dye molecule under UV irradiation, resulting in 97% removal in 120 min. In addition, CdO/GNS NCs showed remarkable chemical stability as an electrode material, with a high specific capacitance of 231 F g-1 at a scan rate of 25 mV s-1. These observed NCs characteristics are higher when compared to pristine CdO NPs. Finally, we found that the investigated NCs showed enhanced multifunctional properties, such as photocatalytic and supercapacitor characteristics, which can be useful in practical applications.
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Affiliation(s)
- Sundararajan Ashok Kumar
- Post Graduate and Research Department of Physics, The American College, Madurai, Tamil Na du, 625002, India
| | - Daniel Rani Rosaline
- Post Graduate and Research Department of Chemistry, Lady Doak College, Madurai, Tamil Na du, 625002, India
| | - Edson Luiz Foletto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil
| | - Guilherme Luiz Dotto
- Department of Chemical Engineering, Federal University of Santa Maria, Santa Maria, 97105-900, Brazil.
| | | | - Gopalan Muralidharan
- Department of Physics, The Gandhigram Rural Institute (Deemed to be University), Gandhigram, Dindigul, Tamil Na du, 624302, India
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Todan L, Predoană L, Petcu G, Preda S, Culiță DC, Băran A, Trușcă RD, Surdu VA, Vasile BȘ, Ianculescu AC. Comparative Study of MgO Nanopowders Prepared by Different Chemical Methods. Gels 2023; 9:624. [PMID: 37623079 PMCID: PMC10453559 DOI: 10.3390/gels9080624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/30/2023] [Accepted: 07/31/2023] [Indexed: 08/26/2023] Open
Abstract
Magnesium oxide (MgO) was synthesized by three different methods: the sol-gel (SG), microwave-assisted sol-gel (MW), and hydrothermal (HT) methods for comparing the influence of the preparation conditions on the properties of the products. The powders were annealed at 450 °C. The samples were characterized by X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM/HRTEM), selected area electron diffraction (SAED), energy-dispersive X-ray spectroscopy (EDX), BET specific surface area and porosity, photoluminescence, and UV-Vis spectroscopy. The samples consisted mainly of periclase as a crystalline phase, and the MW and HT preparation methods generated particles with higher specific surface areas. The powders had less-defined morphologies and high levels of aggregation. The optical band gaps of the samples were determined from UV DRS, and the photocatalytic activities of the magnesium oxides obtained by the three methods towards the degradation of methyl orange (MO) under UV light irradiation was evaluated.
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Affiliation(s)
- Ligia Todan
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Luminița Predoană
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Gabriela Petcu
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Silviu Preda
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Daniela Cristina Culiță
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Adriana Băran
- Institute of Physical Chemistry “Ilie Murgulescu” of the Romanian Academy, 202 Splaiul Independenței, 060021 Bucharest, Romania (A.B.)
| | - Roxana-Doina Trușcă
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania (V.-A.S.); (B.Ș.V.)
| | - Vasile-Adrian Surdu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania (V.-A.S.); (B.Ș.V.)
| | - Bogdan Ștefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania (V.-A.S.); (B.Ș.V.)
| | - Adelina-Carmen Ianculescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Chemical Engineering and Biotechnologies, “Politehnica” University of Bucharest, 1-7 Gh. Polizu, 011061 Bucharest, Romania (V.-A.S.); (B.Ș.V.)
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Alageshwaramoorthy K, Mannu P, Mahalingam S, Nga TTT, Chang HW, Masuda Y, Dong CL. Synthesis and characterization of visible-light-driven novel CuTa 2O 6 as a promising practical photocatalyst. Front Chem 2023; 11:1197961. [PMID: 37426335 PMCID: PMC10323133 DOI: 10.3389/fchem.2023.1197961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 06/12/2023] [Indexed: 07/11/2023] Open
Abstract
In this work, the novel CuTa2O6 phase was successfully synthesized by the hydrothermal and followed by the calcination process. The X-ray diffraction pattern confirms the formation of different phases. At a low temperature, CuTa2O6 exhibits the orthorhombic phase, whereas, at a higher temperature, it underwent a phase transition to a cubic crystal structure. X-ray photoelectron spectroscopic results suggest the presence of all the elements (Cu, Ta, and O). The optical studies were carried out using a UV-Vis DRS spectrophotometer. FESEM images confirm the spherical-shaped particles for the sample annealed at a high temperature. The local atomic and electronic structures around Cu and the contribution of the Cu oxidation state in the CuTa2O6 system were determined by X-ray absorption spectroscopy. To investigate the effective usage of CuTa2O6 in treating wastewater, its photocatalytic activity was investigated by evaluating its use in the photodegradation of MO dye under visible light irradiation. Moreover, the prepared CuTa2O6 photocatalyst exhibits significant photocatalytic activity in the degradation of MO dye and shows excellent stability; it is therefore a promising material for potential use in a practical photocatalyst. The CuTa2O6 photocatalyst suggests an alternative avenue of research into effective photo-catalysts for solar hydrogen water splitting.
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Affiliation(s)
| | - Pandian Mannu
- Research Center for X-ray Science and Department of Physics, Tamkang University, Tamsui, Taiwan
| | - Seetha Mahalingam
- Department of Physics, Kongunadu Arts and Science College, Coimbatore, India
| | - Ta Thi Thuy Nga
- Research Center for X-ray Science and Department of Physics, Tamkang University, Tamsui, Taiwan
| | - Han-Wei Chang
- Department of Chemical Engineering, National United University, Miaoli, Taiwan
- Pesticide Analysis Center, National United University, Miaoli, Taiwan
| | - Yoshitake Masuda
- National Institute of Advanced Industrial Science and Technology (AIST), Nagoya, Japan
| | - Chung-Li Dong
- Research Center for X-ray Science and Department of Physics, Tamkang University, Tamsui, Taiwan
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El-Khatib AM, Gouda MM, Fouad MS, Abd-Elzaher M, Ramadan W. Radiation attenuation properties of chemically prepared MgO nanoparticles/HDPE composites. Sci Rep 2023; 13:9945. [PMID: 37337045 DOI: 10.1038/s41598-023-37088-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/15/2023] [Indexed: 06/21/2023] Open
Abstract
Sheets of high-density polyethylene (HDPE) loaded with magnesium oxide in micro and nano were synthesized with different weight percentages of micro-MgO (0,5,10,20 and 30% by weight) and nano-MgO (5 and 30%) and shaped in form of disc and dog bone shape. The morphological, mechanical, and attenuation characteristics of each concentration were determined. The linear attenuation coefficients (LAC) of the prepared discs were calculated using a well-calibrated scintillation detector and five standard gamma-ray point sources (241Am, 133Ba, 137Cs, 60Co and 152Eu). The LAC was theoretically calculated for HDPE/micro-MgO composites using XCOM software. A good agreement between the theoretical and experimental results was observed. The comparison between micro and nano-MgO as a filler in HDPE was evaluated. The results proved that the loaded nano-MgO in different proportions of HDPE produced greater attenuation coefficients than its micro counterpart. The addition of nano MgO with different weight percentage led to a significant improvement in the mechanical properties of HDPE, the ultimate force and ultimate stress increased as the concentration of nano MgO increased, and the young modulus of HDPE also increased with increasing concentration of micro and nano MgO.
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Affiliation(s)
- Ahmed M El-Khatib
- Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt
| | - Mona M Gouda
- Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt.
| | - Mohamed S Fouad
- Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt
| | - Mohamed Abd-Elzaher
- Department of Basic and Applied Sciences, Faculty of Engineering, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt
| | - Wegdan Ramadan
- Physics Department, Faculty of Science, Alexandria University, 21511, Alexandria, Egypt
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Yadav P, Saini R, Bhaduri A. Facile synthesis of MgO nanoparticles for effective degradation of organic dyes. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:71439-71453. [PMID: 35821325 DOI: 10.1007/s11356-022-21925-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 07/05/2022] [Indexed: 06/14/2023]
Abstract
In the present study, we have synthesized magnesium oxide (MgO) nanoparticles by a facile and cost-effective chemical co-precipitation method with annealing at three different temperatures (350°C, 450°C, and 550°C) for the removal of various organic dyes. X-ray diffraction studies revealed that the prepared samples are having sizes below 20 nm and with pure phase. Phase transformation of hexagonal Mg(OH)2 nanoparticles to discretely cubical structured MgO nanoparticles has been observed with increasing the annealing temperatures which is also supported by the TGA/DSC analysis. Mg-O stretching vibration peaks in the range of 400-800 cm-1 obtained by FTIR spectroscopy support the formation of MgO nanoparticles. The observed Raman active bands for the annealed sample at 550°C confirm the formation of the nanocrystalline phase since these bands are typically absent in the bulk MgO as well as in Mg(OH)2. The surface morphology of the as-prepared Mg(OH)2 are aggregated nano-petals which changed into spherical shape for MgO annealed at 550°C as studied by field emission scanning electron microscopy (FESEM). The specific surface area of MgO nanoparticles annealed at 550°C using BET isotherms is found to be 37.487 m2g-1. The optical bandgaps of the prepared samples are found to be in the range of 4.4 to 5.1 eV using the Tauc plot. Adsorption studies with a variation of initial brilliant green dye concentration and contact time are carried out along with the studies of adsorption kinetic and isotherm models. Langmuir isotherm model is the most suitable model on the basis of correlation constant with maximum BG dye adsorption capacity onto MgO@550°C which is found to be 63.9 mg/g. The adsorption kinetics followed the pseudo-second-order model. Also prepared pristine MgO nanoparticles showed significant photocatalytic performance for the degradation of various dyes; brilliant green (BG: 88.91%), methylene blue (MB: 79.05%), crystal violet (CV: 76.49%), methyl orange (MO: 68.62%), and brilliant blue (BB: 40.44%) under visible irradiation. MgO nanoparticles could be a promising adsorbent and photocatalyst that may be employed in the treatment of effluents from industries.
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Affiliation(s)
- Pinky Yadav
- Department of Physics, Amity School of Applied Sciences, Amity University Haryana, Gurugram, Haryana, 122413, India
| | - Rimpy Saini
- Department of Physics and Astrophysics, University of Delhi, Delhi, 110007, India
| | - Ayana Bhaduri
- Department of Physics, Amity School of Applied Sciences, Amity University Haryana, Gurugram, Haryana, 122413, India.
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10
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Mohammadi Nezhad A, Talaiekhozani A, Mojiri A, Sonne C, Cho J, Rezania S, Vasseghian Y. Photocatalytic removal of ceftriaxone from wastewater using TiO 2/MgO under ultraviolet radiation. ENVIRONMENTAL RESEARCH 2023; 229:115915. [PMID: 37076030 DOI: 10.1016/j.envres.2023.115915] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/30/2023] [Accepted: 04/13/2023] [Indexed: 05/03/2023]
Abstract
Pharmaceutical compounds are among the environmental contaminants that cause pollution of water resources and thereby threaten ecosystem services and the environmental health of the past decades. Antibiotics are categorized as emerging pollutants due to their persistence in the environment that are difficult to remove by conventional wastewater treatment. Ceftriaxone is one of the multiple antibiotics whose removal from wastewater has not been fully investigated. In this study, TiO2/MgO (5% MgO) the efficiency of photocatalyst nanoparticles in removing ceftriaxone was analyzed by XRD, FTIR, UV-Vis, BET, EDS, and FESEM. The results were compared with UVC, TiO2/UVC, and H2O2/UVC photolysis processes to evaluate the effectiveness of the selected methods. Based on these results, the highest removal efficiency of ceftriaxone from synthetic wastewater was 93.7% at the concentration of 400 mg/L using TiO2/MgO nano photocatalyst with an HRT of 120 min. This study confirmed that TiO2/MgO photocatalyst nanoparticles efficiently removed ceftriaxone from wastewater. Future studies should focus on the optimization of reactor conditions and improvements of the reactor design to obtain higher removal of ceftriaxone from wastewater.
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Affiliation(s)
| | - Amirreza Talaiekhozani
- Department of Chemical Engineering, Jami Institute of Technology, Isfahan, Iran; Alavi Educational and Cultural Complex, Shiraz, Iran
| | - Amin Mojiri
- Department of Civil and Environmental Engineering, Graduate School of Advanced Science and Technology, Higashihiroshima, 739-8725, Japan
| | - Christian Sonne
- Department of Ecoscience, Arctic Research Centre (ARC), Aarhus University, Frederiksborgvej 399, PO Box 358, DK-4000, Roskilde, Denmark; Sustainability Cluster, School of Engineering, University of Petroleum & Energy Studies, Dehradun, Uttarakhand 248007, India
| | - Jinwoo Cho
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea
| | - Shahabaldin Rezania
- Department of Environment and Energy, Sejong University, Seoul, 05006, South Korea.
| | - Yasser Vasseghian
- Department of Chemistry, Soongsil University, Seoul, 06978, South Korea; School of Engineering, Lebanese American University, Byblos, Lebanon; Department of Chemical Engineering and Material Science, Yuan Ze University, Taiwan.
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11
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Solanki K, Sharma S, Yadav S, Kaushik B, Rana P, Dixit R, Sharma RK. Hierarchical 3D Flower-like Metal Oxides Micro/Nanostructures: Fabrication, Surface Modification, Their Crucial Role in Environmental Decontamination, Mechanistic Insights, and Future Perspectives. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2300394. [PMID: 36950767 DOI: 10.1002/smll.202300394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 02/21/2023] [Indexed: 06/18/2023]
Abstract
Hierarchical micro/nanostructures are constructed by micro-scaled objects with nanoarchitectures belonging to an interesting class of crystalline materials that has significant applications in diverse fields. Featured with a large surface-to-volume ratio, facile mass transportation, high stability against aggregation, structurally enhanced adsorption, and catalytical performances, three dimenisional (3D) hierarchical metal oxides have been considered as versatile functional materials for waste-water treatment. Due to the ineffectiveness of traditional water purification protocols for reclamation of water, lately, the use of hierarchical metal oxides has emerged as an appealing platform for the remediation of water pollution owing to their fascinating and tailorable physiochemical properties. The present review highlights various approaches to the tunable synthesis of hierarchical structures along with their surface modification strategies to enhance their efficiencies for the removal of different noxious substances. Besides, their applications for the eradication of organic and inorganic contaminants have been discussed comprehensively with their plausible mechanistic pathways. Finally, overlooked aspects in this field as well as the major roadblocks to the implementation of these metal oxide architectures for large-scale treatment of wastewater are provided here. Moreover, the potential ways to tackle these issues are also presented which may be useful for the transformation of current water treatment technologies.
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Affiliation(s)
- Kanika Solanki
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Shivani Sharma
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - Sneha Yadav
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Bhawna Kaushik
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Pooja Rana
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
| | - Ranjana Dixit
- Department of Chemistry, Ramjas College, University of Delhi, New Delhi, 110007, India
| | - R K Sharma
- Green Chemistry Network Center, Department of Chemistry, University of Delhi, New Delhi, 110007, India
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12
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Super-efficient photocatalytic degradation of methylene blue, methyl orange and rhodamine B dyes using low-cost ZnO–MgO nanocomposite under natural sunlight and its bactericidal activity. RESEARCH ON CHEMICAL INTERMEDIATES 2023. [DOI: 10.1007/s11164-023-04985-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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13
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Wagh S, Kadam VS, Jagtap CV, Salunkhe DB, Patil RS, Pathan HM, Patole SP. Comparative Studies on Synthesis, Characterization and Photocatalytic Activity of Ag Doped ZnO Nanoparticles. ACS OMEGA 2023; 8:7779-7790. [PMID: 36872997 PMCID: PMC9979246 DOI: 10.1021/acsomega.2c07499] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/01/2023] [Indexed: 06/18/2023]
Abstract
In this work, silver (Ag) doped zinc oxide (ZnO) nanoparticles were synthesized using zinc chloride, zinc nitrate, and zinc acetate precursors with (0 to 10) wt % Ag doping by a simple reflux chemical method. The nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, ultraviolet visible spectroscopy, and photoluminescence spectroscopy. The nanoparticles are studied as a photocatalyst for visible light driven annihilation of methylene blue and rose bengal dyes. The 5 wt % Ag doped ZnO displayed optimum photocatalytic activity toward methylene blue and rose bengal dye degradation at the rate of 13 × 10-2 min-1 and 10 × 10-2 min-1, respectively. Here we report antifungal activity for the first time using Ag doped ZnO nanoparticles against Bipolaris sorokiniana, displaying 45% efficiency for 7 wt % Ag doped ZnO.
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Affiliation(s)
- Snehal
S. Wagh
- School
of Polytechnic and Skill Development, Dr.
Vishwanath Karad MIT World Peace University, Pune, 411038, India
- Advanced
Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, 411007, India
- PSGVPM
ASC College, Shahada, Nandurbar 425409, India
| | - Vishal S. Kadam
- Advanced
Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, 411007, India
| | - Chaitali V. Jagtap
- Advanced
Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, 411007, India
| | | | | | - Habib M. Pathan
- Advanced
Physics Laboratory, Department of Physics, Savitribai Phule Pune University, Pune, 411007, India
- Department
of Physics, Khalifa University of Science
and Technology, Abu Dhabi, 127788, United Arab Emirates
| | - Shashikant P. Patole
- Department
of Physics, Khalifa University of Science
and Technology, Abu Dhabi, 127788, United Arab Emirates
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14
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Scharf S, Notz S, Thomas R, Mehring M, Tegenkamp C, Formánek P, Hübner R, Lang H. Porous Magnesium Oxide by Twin Polymerization: From Hybrid Materials to Catalysis. Eur J Inorg Chem 2023. [DOI: 10.1002/ejic.202200663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Sebastian Scharf
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
| | - Sebastian Notz
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
| | - Rico Thomas
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Coordination Chemistry D-09107 Chemnitz Germany
| | - Michael Mehring
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Chemistry Coordination Chemistry D-09107 Chemnitz Germany
| | - Christoph Tegenkamp
- Technische Universität Chemnitz Faculty of Natural Sciences Institute of Physics Solid Surfaces Analyses D-09107 Chemnitz Germany
| | - Petr Formánek
- Leibniz-Institut für Polymerforschung Dresden e.V Institut Physikalische Chemie und Physik der Polymere D-01005 Dresden Germany
| | - René Hübner
- Institute of Ion Beam Physics and Materials Research Helmholtz-Zentrum Dresden-Rossendorf D-01328 Dresden Germany
| | - Heinrich Lang
- Research Center for Materials Architectures and Integration of Nanomembranes (MAIN) Research Group Organometallic Chemistry Technische Universität Chemnitz Rosenbergstraße 6 D-09126 Chemnitz Germany
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15
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Balaba N, Jaerger S, Horsth DFL, Primo JDO, Correa JDS, Bittencourt C, Zanette CM, Anaissi FJ. Polysaccharides as Green Fuels for the Synthesis of MgO: Characterization and Evaluation of Antimicrobial Activities. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010142. [PMID: 36615339 PMCID: PMC9822341 DOI: 10.3390/molecules28010142] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 12/17/2022] [Accepted: 12/20/2022] [Indexed: 12/28/2022]
Abstract
The synthesis of structured MgO is reported using feedstock starch (route I), citrus pectin (route II), and Aloe vera (route III) leaf, which are suitable for use as green fuels due to their abundance, low cost, and non-toxicity. The oxides formed showed high porosity and were evaluated as antimicrobial agents. The samples were characterized by energy-dispersive X-ray fluorescence (EDXRF), X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The crystalline periclase monophase of the MgO was identified for all samples. The SEM analyses show that the sample morphology depends on the organic fuel used during the synthesis. The antibacterial activity of the MgO-St (starch), MgO-CP (citrus pectin), and MgO-Av (Aloe vera) oxides was evaluated against pathogens Staphylococcus aureus (ATCC 6538P) and Escherichia coli (ATCC 8739). Antifungal activity was also studied against Candida albicans (ATCC 64548). The studies were carried out using the qualitative agar disk diffusion method and quantitative minimum inhibitory concentration (MIC) tests. The MIC of each sample showed the same inhibitory concentration of 400 µg. mL-1 for the studied microorganisms. The formation of inhibition zones and the MIC values in the antimicrobial analysis indicate the effective antimicrobial activity of the samples against the test microorganisms.
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Affiliation(s)
- Nayara Balaba
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Silvia Jaerger
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Dienifer F. L. Horsth
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
| | - Julia de O. Primo
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Jamille de S. Correa
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Carla Bittencourt
- Chimie des Interactions Plasma-Surface (ChIPS), Research Institute for Materials Science and Engineering, University of Mons, 7000 Mons, Belgium
- Correspondence:
| | - Cristina M. Zanette
- Departamento de Engenharia de Alimentos, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
| | - Fauze J. Anaissi
- Departamento de Química, Universidade Estadual do Centro-Oeste, Guarapuava 85040-080, Brazil
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16
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Kinetic studies of dexamethasone degradation in aqueous solution via a photocatalytic UV/H 2O 2/MgO process. Sci Rep 2022; 12:21360. [PMID: 36494397 PMCID: PMC9734195 DOI: 10.1038/s41598-022-25577-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022] Open
Abstract
Wastewaters discharged from different industries and hospitals may contain pharmaceuticals, especially dexamethasone (DEX). Thus, we applied the UV/H2O2 photocatalytic method in the presence of the MgO nanoparticles to remove dexamethasone from synthetic wastewater. Moreover, the effects of parameters such as pH (3-11), hydrogen peroxide concentration (1-8 mM), initial DEX concentration (5-30 mg/L), and catalyst dosage (0.01-0.2 g/L) during the reaction times (0-30 min) were investigated. Furthermore, the efficiency of UV/H2O2 in the presence and absence of catalysts was investigated. The photocatalyst is characterized by X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), and Fourier-transform infrared spectroscopy (FTIR) techniques. It was found that the removal rate was enhanced by decreasing pH and the initial dexamethasone concentration. The removal rate was enhanced somewhat with concentrations of hydrogen peroxide and MgO. In the case of UV/H2O2/MgO, 87% removal efficiency was achieved, under the optimal conditions: pH 3, contact time of 30 min, dexamethasone concentration of 20 mg/L, H2O2 of 0.5 mM, and UV radiation of 55 watts. The kinetic data indicated that the reaction followed the second-order kinetic model. The results showed that the UV/H2O2 photochemical process can efficiently remove dexamethasone from aqueous in the presence of a MgO catalyst, and the mineralization efficiency was reached at about 98%.
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17
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Sol-Gel Synthesis of ZnO Nanoparticles Using Different Chitosan Sources: Effects on Antibacterial Activity and Photocatalytic Degradation of AZO Dye. Catalysts 2022. [DOI: 10.3390/catal12121611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Chitosan was used in the sol-gel synthesis of zinc oxide nanoparticles (ZnO NPs) as a capping agent in order to control the size, morphology, optical bandgap, photocatalytic efficiency, and antimicrobial activity. Different chitosan sources were used for the sol-gel synthesis of ZnO NPs, namely chitosan of shrimp shells, crab shells, and Streptomyces griseus bacteria. The photocatalytic efficiency was studied by using the methylene blue (MB) photodegradation test, and the antibacterial activity of the different types of ZnO NPs was investigated by the agar well diffusion technique. The particle size of ZnO NPs varied between 20 and 80 nm, and the band gap energy ranged between 2.7 and 3.2 eV. Due to the different chitosan sources, the ZnO NPs showed different antibacterial activity against Listeria innocua, Bacillus Subtiliis, Staphylococcus Aureus, Salmonella Typhimurium and Pseudomonas Aeruginosa. The ZnO NPs with lower band gap values showed better antibacterial results compared to ZnO NPs with higher band gap values. The MB dye removal of ZnO (shrimp shells), ZnO (crab shells), and ZnO (Streptomyces griseus) reached 60%, 56%, and 44%, respectively, at a contact time of 60 min, a low initial MB dye concentration of 6 × 10−5 M, a solution temperature of 25 °C, and a pH = 7.
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18
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Sekar S, Lee S. In Situ Facile Synthesis of Low-Cost Biogenic Eggshell-Derived Nanohydroxyapatite/Chitosan Biocomposites for Orthopedic Implant Applications. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4302. [PMID: 36500924 PMCID: PMC9739235 DOI: 10.3390/nano12234302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 06/17/2023]
Abstract
In situ facile synthesis and the characterization of nanohydroxyapatite/chitosan (nHAP/CS) biocomposites were investigated for examining their potential applications in orthopedic implant technology. Firstly, the bare nHAP, europium-doped hydroxyapatite (Eu-nHAP), yttrium-doped hydroxyapatite (Y-nHAP), and Eu- and Y-codoped hydroxyapatite (Eu,Y-nHAP) nanoparticles were synthesized by the wet precipitation technique using biowaste-eggshell-derived calcium oxide powders. Then, through ultrasonication using the nanohydroxyapatite/chitosan mixtures (molar ratio = 1:2), the nHAP/CS, Eu-nHAP/CS, Y-nHAP/CS, and Eu,Y-nHAP/CS biocomposites were fabricated. Among them, Eu,Y-nHAP/CS showed higher cell viability (94.9%), higher solubility (pH = 7.6 after 21 days), and greater antibacterial activity than those of the other composites. In addition, Eu,Y-nHAP/CS exhibited improved mechanical properties compared with the other composites. For example, the nanoindentation test displayed the Eu,Y-nHAP/CS-coated 316L stainless steel implant to possess a higher Young's modulus value (9.24 GPa) and greater hardness value (300.71 MPa) than those of the others. The results indicate that the biomass-eggshell-derived Eu,Y-doped nHAP is of good use for orthopedic implant applications.
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Affiliation(s)
- Sankar Sekar
- Department of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea
- Quantum-Functional Semiconductor Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea
| | - Sejoon Lee
- Department of Semiconductor Science, Dongguk University-Seoul, Seoul 04620, Republic of Korea
- Quantum-Functional Semiconductor Research Center, Dongguk University-Seoul, Seoul 04620, Republic of Korea
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19
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ZnO Particles Modified MgAl Coatings with Improved Photocatalytic Activity Formed by Plasma Electrolytic Oxidation of AZ31 Magnesium Alloy in Aluminate Electrolyte. Catalysts 2022. [DOI: 10.3390/catal12121503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
MgAl and MgAl/ZnO coatings were prepared by plasma electrolytic oxidation (PEO) of AZ31 magnesium alloy in aluminate electrolyte (5 g/L NaAlO2) without and with addition of ZnO particles in various concentrations. The MgAl coating was partially crystallized and contained MgO and MgAl2O4 phases. The addition of ZnO particles to aluminate electrolyte had no significant effect on the surface morphology of formed coatings, while the Zn content increased with ZnO particle concentrations. X-ray diffraction confirmed the incorporation of ZnO particles in the coatings. The photodegradation of methyl orange (10 cm3 of 8 mg/L) was used to measure the photocatalytic activity (PA) of MgAl and MgAl/ZnO coatings. The PA of MgAl coating after 8 h of irradiation was around 58%, while the PA of MgAl/ZnO coatings formed in aluminate electrolyte with the addition of ZnO particles in concentrations of 4 g/L, 8 g/L, and 12 g/L were around 69%, 86%, and 97%, respectively.
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20
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Pham MT, Tran DPH, Bui XT, You SJ. Rapid fabrication of MgO@g-C 3N 4 heterojunctions for photocatalytic nitric oxide removal. BEILSTEIN JOURNAL OF NANOTECHNOLOGY 2022; 13:1141-1154. [PMID: 36320428 PMCID: PMC9592965 DOI: 10.3762/bjnano.13.96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Nitric oxide (NO) is an air pollutant impacting the environment, human health, and other biotas. Among the technologies to treat NO pollution, photocatalytic oxidation under visible light is considered an effective means. This study describes photocatalytic oxidation to degrade NO under visible light with the support of a photocatalyst. MgO@g-C3N4 heterojunction photocatalysts were synthesized by one-step pyrolysis of MgO and urea at 550 °C for two hours. The photocatalytic NO removal efficiency of the MgO@g-C3N4 heterojunctions was significantly improved and reached a maximum value of 75.4% under visible light irradiation. Differential reflectance spectroscopy (DRS) was used to determine the optical properties and bandgap energies of the material. The bandgap of the material decreases with increasing amounts of MgO. The photoluminescence spectra indicate that the recombination of electron-hole pairs is hindered by doping MgO onto g-C3N4. Also, NO conversion, DeNOx index, apparent quantum efficiency, trapping tests, and electron spin resonance measurements were carried out to understand the photocatalytic mechanism of the materials. The high reusability of the MgO@g-C3N4 heterojunction was shown by a five-cycle recycling test. This study provides a simple way to synthesize photocatalytic heterojunction materials with high reusability and the potential of heterojunction photocatalysts in the field of environmental remediation.
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Affiliation(s)
- Minh-Thuan Pham
- Department of Civil Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
| | - Duyen P H Tran
- Department of Civil Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
| | - Xuan-Thanh Bui
- Faculty of Environment and Natural Resources, Ho Chi Minh City University of Technology (HCMUT), VNU-HCM, 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City 700000, Viet Nam
| | - Sheng-Jie You
- Department of Environmental Engineering, Chung Yuan Christian University, Taoyuan 32023, Taiwan
- Center for Environmental Risk Management, Chung Yuan Christian University, Taoyuan 32023, Taiwan
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21
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Effects of Erbium Incorporation on Structural, Surface Morphology, and Degradation of Methylene Blue Dye of Magnesium Oxide Nanoparticles. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02482-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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22
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Morpho/Opto-structural Characterizations and XRD-Assisted Estimation of Crystallite Size and Strain in MgO Nanoparticles by Applying Williamson–Hall and Size–Strain Techniques. J CLUST SCI 2022. [DOI: 10.1007/s10876-021-02144-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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23
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A. AF, K. M, Yadav RK, Narayanan S. BAGS (Bio-source assisted green synthesis) strategy for preparing nanostructures; the case of MgO mesotubes for wastewater reclamation. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Benisha R, Amalanathan M, Aravind M, Mary MSM, Ahmad A, Tabassum S, Al-Qahtani WH, Ahmad I. Catharanthus roseus leaf extract mediated Ag-MgO nanocatalyst for photocatalytic degradation of Congo red dye and their antibacterial activity. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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25
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Ullah H, Ahmad R, Khan AA, Khaliq N, Khan M, Ali G, Karim S, Yi X, Cho SO. A sensitive non-enzymatic glucose sensor based on MgO entangled nanosheets decorated with CdS nanoparticles: Experimental and DFT study. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Specific charge separation of Sn doped MgO nanoparticles for photocatalytic activity under UV light irradiation. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121189] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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27
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Khatua A, Prasad A, Behuria HG, Patel AK, Singh M, Yasasve M, Saravanan M, Meena R. Evaluation of antimicrobial, anticancer potential and Flippase induced leakage in model membrane of Centella asiatica fabricated MgONPs. BIOMATERIALS ADVANCES 2022; 138:212855. [PMID: 35913247 DOI: 10.1016/j.bioadv.2022.212855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2022] [Revised: 04/24/2022] [Accepted: 05/09/2022] [Indexed: 12/26/2022]
Abstract
The use of chemically synthesized nanoparticles and crude plant extracts as antimicrobial -anticancer agents have many limitations. In this study, we have used Centella asiatica extract (CaE) having relatively less explored but tremendous medicinal properties, as reducing and stabilizing agents to green synthesize magnesium oxide nanoparticles (MgONPs) using magnesium nitrate. In comparison to the bulk material, capabilities of Ca-MgONPs as an improved antibacterial, antifungal, and anticancer agent in human prostatic carcinoma cells (PC3), as well as membranolytic capability in model cell membrane, were studied. The phyto-functionalized Ca-MgONPs were characterized using UV-Visible spectroscopy (UV-Vis), Transmission Electron Microscopy (TEM), Energy Dispersive X-Ray Spectroscopy (EDX), X-ray Diffraction (XRD), Fourier Transform Infra-Red Spectroscopy (FT-IR) and Atomic Force Microscopy (AFM). Observation of characteristic peaks by spectroscopic and microscopic analysis confirmed the synthesis of Ca-MgONPs. The Ca-MgONPs showed broad spectrum of bactericidal activity against both gram-positive and gram-negative bacteria and fungicidal activity against two species of the Candida fungus. The Ca-MgONPs also exhibited dose-dependent and selective inhibition of proliferating PC3 cells with IC50 of 123.65 ± 4.82 μg/mL at 24 h, however, without having any cytotoxicity toward non-cancerous HEK293 cells. Further studies aimed at understanding the probable mechanism of toxicity of Ca-MgONPs in PC3 cells, the results indicated a significant reduction in cell migration capacities, increment in cytosolic ROS, loss of mitochondrial transmembrane potential, DNA damage and S-phase cell cycle arrest. Ca-MgONPs also induced pore formation in a synthetic large unilamellar vesicle. Thus, Ca-MgONPs might be useful in the effective management of several human pathogens of concern and some more cancer types.
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Affiliation(s)
- Ashapurna Khatua
- Nanotoxicology Laboratory, Lab#312, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Abhinav Prasad
- Biochemistry and Environmental Toxicology Laboratory, Lab#103, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Himadri Gourav Behuria
- Department of Biotechnology, North Orissa University, Mayurbhanj, Baripada, Odisha 757003, India
| | - Amiya Kumar Patel
- School of Biotechnology and Bioinformatics, Sambalpur University, Sambalpur, Odisha 768019, India
| | - Mani Singh
- Department of Environmental Sciences, Lakshmibai College, University of Delhi, New Delhi 110052, India
| | - Madhavan Yasasve
- Department of Oral Medicine and Radiology, Faculty of Dental Sciences, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, India
| | - Muthupandian Saravanan
- AMR and Nanomedicine Laboratory, Department of Pharmacology, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Chennai 600077, India.
| | - Ramovatar Meena
- Nanotoxicology Laboratory, Lab#312, School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India.
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Zare M. Synthesis of Ag nanoparticle-decorated MgO hollow spheres for enhancing photocatalytic activity. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2081565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Maryam Zare
- Basic Sciences Group, Golpayegan College of Engineering, Isfahan University of Technology, Golpayegan, Iran
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Synthesis of PVA capped naproxen conjugated MgO nanoparticles and its bioactivity screening. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103429] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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30
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Jamila GS, Sajjad S, Leghari SAK, Mehboob M, Flox C. Enhanced electron transport by Fe2O3 on NCQDs–MgO nanostructure for solar photocatalysis and electrocatalytic water splitting. APPLIED NANOSCIENCE 2022. [DOI: 10.1007/s13204-022-02424-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Indeewari KM, Dunuweera SP, Dunuweera AN, Rajapakse RMG. Synthesis and Characterization of 2D Magnesium Oxide Nanoflakes: A Potential Nanomaterial for Effective Phosphate Removal from Wastewater. ChemistrySelect 2022. [DOI: 10.1002/slct.202103973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Kanaththage M. Indeewari
- Department of Chemistry Postgraduate Institute of Science University of Peradeniya Peradeniya Sri Lanka 20400
| | - Shashiprabha P. Dunuweera
- Department of Chemistry Postgraduate Institute of Science University of Peradeniya Peradeniya Sri Lanka 20400
| | - Asiri N. Dunuweera
- Department of Basic Sciences Faculty of Allied Health Sciences University of Peradeniya Peradeniya Sri Lanka 20400
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Hussain T, Hussain M, Hussain S, Kaseem M. Microwave-assisted synthesis of NiTe2 photocatalyst as a facile and scalable approach for energy-efficient photocatalysis and detoxification of harmful organic dyes. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2021.120025] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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33
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Karim MAH, Aziz BK. Catalytic photodegradation of diclofenac from synthetic wastewater using MgO nanoparticles synthesized by direct precipitation method. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02173-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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34
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Haggar AM, Awadallah AE, Aboul-Enein AA, Sayed GH. Non-oxidative conversion of real low density polyethylene waste into hydrogen and carbon nanomaterials over MgO supported bimetallic Co-Mo catalysts with different total Co-Mo contents. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117092] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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35
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Madona J, Sridevi C. Surfactant assisted hydrothermal synthesis of MgO/g-C3N4 heterojunction nanocomposite for enhanced solar photocatalysis and antimicrobial activities. INORG CHEM COMMUN 2022. [DOI: 10.1016/j.inoche.2022.109265] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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36
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Synthesis and Characterization of MgO Thin Films Obtained by Spray Technique for Optoelectronic Applications. NANOMATERIALS 2021; 11:nano11113076. [PMID: 34835839 PMCID: PMC8618750 DOI: 10.3390/nano11113076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 11/06/2021] [Accepted: 11/07/2021] [Indexed: 11/17/2022]
Abstract
Magnesium oxide (MgO) thin films with different magnesium concentrations ([Mg2+] = 0.05, 0.1, 0.15 and 0.2 mol·L-1) in a spray solution have been successfully grown using a spray pyrolysis technique. X-ray diffraction (XRD), Maud software, FTIR spectroscopy, a confocal microscope, Wien2k software, spectrophotometry and a Photoluminescence spectrometer were used to investigate the structural, morphological and optical properties. XRD analysis revealed a better crystalline quality of the MgO thin layer synthesized with [Mg2+] = 0.15 mol·L-1, which crystallized into a face-centered cubic structure along the preferred orientation (200) lattice plan. The enhancement of the crystalline quality for the MgO thin film ([Mg2+] = 0.15 mol·L-1) was obtained, which was accompanied by an increment of 94.3 nm of the crystallite size. No secondary phase was detected and the purity phase of the MgO thin film was confirmed using Maud software. From the transmission spectra results, high transparent and antireflective properties of the MgO thin film were observed, with an average transmission value of about 91.48% in the visible range, which can be used as an optical window or buffer layer in solar cell applications. The films also have a high reflectance value in the IR range, which indicates that the highly reflective surface will prevent an increase in surface temperature under solar irradiation, which could be beneficial in solar cell applications. A direct band gap type was estimated using the Tauc relation which is close to the experimental value of 4.0 eV for optimal growth. The MgO material was tested for the degradation of methylene blue (MB), which reached a high photodegradation rate of about 83% after 180 min under sunlight illumination. These experimental trends open a new door for promising the removal of water contaminants for photocatalysis application.
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Cao N, Zhao X, Gao M, Li Z, Ding X, Li C, Liu K, Du X, Li W, Feng J, Ren Y, Wei T. Superior selective adsorption of MgO with abundant oxygen vacancies to removal and recycle reactive dyes. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119236] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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38
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Alaizeri ZM, Alhadlaq HA, Aldawood S, Akhtar MJ, Amer MS, Ahamed M. Facile Synthesis, Characterization, Photocatalytic Activity, and Cytotoxicity of Ag-Doped MgO Nanoparticles. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2915. [PMID: 34835679 PMCID: PMC8618491 DOI: 10.3390/nano11112915] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 10/24/2021] [Accepted: 10/25/2021] [Indexed: 12/22/2022]
Abstract
Due to unique physicochemical properties, magnesium oxide nanoparticles (MgO NPs) have shown great potential for various applications, including biomedical and environmental remediation. Moreover, the physiochemical properties of MgO NPs can be tailored by metal ion doping that can be utilized in photocatalytic performance and in the biomedical field. There is limited study on the photocatalytic activity and biocompatibility of silver (Ag)-doped MgO NPs. This study was planned for facile synthesis, characterization, and photocatalytic activity of pure and silver (Ag)-doped MgO NPs. In addition, cytotoxicity of pure and Ag-doped MgO NPs was assessed in human normal umbilical vein endothelial cells (HUVECs). Pure MgO NPs and Ag-doped (1, 2, 5, and 7.5 mol%) MgO NPs were prepared via a simple sol-gel procedure. X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier transform infrared (FTIR), photoluminescence (PL), and X-ray photoelectron spectroscopy (XPS) were used to characterize the prepared samples. XRD results showed the preparation of highly crystalline NPs with no impurity peaks. TEM and SEM studies indicate smooth surfaces with almost spherical morphology of MgO NPs, and Ag-doping did not change the morphology. Elemental composition study suggested that Ag is uniformly distributed in MgO particles. Intensity of the PL spectra of MgO NPs decreased with increasing the concentration of Ag dopants. In comparison to pure MgO NPs, Ag-MgO NPs showed higher degradation of methylene blue (MB) dye under UV irradiation. The improved photocatalytic activity of Ag-MgO NPs was related to the effect of dopant concentration on reducing the recombination between electrons and holes. Cytotoxicity studies showed good biocompatibility of pure and Ag-doped MgO NPs with human normal umbilical vein endothelial cells (HUVECs). These results highlighted the potential of Ag-doped MgO NPs in environmental remediation.
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Affiliation(s)
- ZabnAllah M. Alaizeri
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
| | - Hisham A. Alhadlaq
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Saad Aldawood
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
| | - Mohd Javed Akhtar
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Mabrook S. Amer
- Department of Chemistry, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia;
| | - Maqusood Ahamed
- Department of Physics and Astronomy, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia; (Z.M.A.); (S.A.); (M.A.)
- King Abdullah Institute for Nanotechnology, King Saud University, Riyadh 11451, Saudi Arabia;
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Multifunctional Composite Coatings Based on Photoactive Metal-Oxide Nanopowders (MgO/TiO 2) in Hydrophobic Polymer Matrix for Stone Heritage Conservation. NANOMATERIALS 2021; 11:nano11102586. [PMID: 34685027 PMCID: PMC8539007 DOI: 10.3390/nano11102586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 09/24/2021] [Accepted: 09/27/2021] [Indexed: 02/02/2023]
Abstract
Multifunctional composite coatings composed of metal oxide nanoparticles dispersed in polymer matrices are an advanced solution to solve the problem of stone heritage deterioration. Their innovative design is meant to be stable, durable, transparent, easy to apply and remove, non-toxic, hydrophobic, and permeable. Coating formulations for the protection of buildings and monuments have been intensively researched lately. Such formulations are based on multifunctional composite coatings incorporating metal oxides. The present work aims to combine the hydrophobic properties of sodium polyacrylate (NaPAC16) with the antimicrobial effectiveness, with promising antimicrobial results even in the absence of light, and good compatibility of MgO (a safe to use, low cost and environmentally friendly material) and TiO2 (with antibacterial and antifungal properties), in order to develop coatings for stone materials protection. MgO (pure phase periclase) and TiO2 (pure phase anatase) nanopowders were prepared through sol–gel method, specifically routes. Aqueous dispersions of hydrophobically modified polymer (NaPAC16, polyacrylic acid sodium salt) and MgO/TiO2 nanopowders were deposited through layer-by-layer dip coating technique on glass slides and through immersion on stone fragments closely resembling the mosaic stone from the fourth century AD Roman Mosaic Edifice, from Constanta, Romania. The oxide nanopowders were characterized by: Thermal analysis (TG/DTA), scanning electron microscopy (SEM), X-ray diffraction (XRD), BET specific surface area and porosity, and UV–Vis spectroscopy for band gap determination. An aqueous dispersion of modified polyacrylate polymer and oxide nanopowders was deposited on different substrates (glass slides, red bricks, gypsum mortars). Film hydrophobicity was verified by contact angle measurements. The colour parameters were evaluated. Photocatalytic and antimicrobial activity of the powders and composite coatings were tested.
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Selvamani T, Anandan S, Asiri AM, Maruthamuthu P, Ashokkumar M. Preparation of MgTi 2O 5 nanoparticles for sonophotocatalytic degradation of triphenylmethane dyes. ULTRASONICS SONOCHEMISTRY 2021; 75:105585. [PMID: 34087757 PMCID: PMC8182103 DOI: 10.1016/j.ultsonch.2021.105585] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 04/30/2021] [Accepted: 05/05/2021] [Indexed: 05/14/2023]
Abstract
MgTi2O5 (magnesium dititanate) nanoparticles were prepared by a simple hydrothermal assisted post-annealing method and characterized with various analytical techniques. The catalytic properties (sonocatalytic, photocatalytic and sonophotocatalytic activity) were evaluated using the degradation of triphenylmethane dyes (crystal violet, basic fuchsin, and acid fuchsin). The sonophotocatalytic activity of MgTi2O5 nanoparticles towards crystal violet was found to be ~2.9 times higher than the photocatalytic activity and ~20 times higher than that of the sonocatalytic processes. In addition, the sonophotocatalytic efficiency of MgTi2O5 nanoparticles was found to be remarkable for the degradation of basic fuchsin (cationic dye) and acid fuchsin (anionic dye). The mechanism of these catalytic activities has been discussed in detail.
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Affiliation(s)
- Thangavel Selvamani
- Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India
| | - Sambandam Anandan
- Nanomaterials and Solar Energy Conversion Lab, Department of Chemistry, National Institute of Technology, Tiruchirappalli 620 015, India.
| | - Abdullah M Asiri
- The Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah 21413, P.O. Box 80203, Saudi Arabia
| | - Pichai Maruthamuthu
- Department of Energy, University of Madras, Guindy Campus, Chennai 600025, India
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41
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Li N, Huang M, Zhou J, Liu M, Jing D. MgO and Au nanoparticle Co-modified g-C3N4 photocatalysts for enhanced photoreduction of CO2 with H2O. CHINESE JOURNAL OF CATALYSIS 2021. [DOI: 10.1016/s1872-2067(20)63690-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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42
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Shawky AM, El-Tohamy MF. Highly Functionalized Modified Metal Oxides Polymeric Sensors for Potentiometric Determination of Letrozole in Commercial Oral Tablets and Biosamples. Polymers (Basel) 2021; 13:1384. [PMID: 33922800 PMCID: PMC8123036 DOI: 10.3390/polym13091384] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/16/2022] Open
Abstract
The advanced and high-functional activities of magnesium oxide and copper oxide nanoparticles encourage the extensive use of these metal oxides as remarkable electroactive materials in electrochemical and sensing detections. The current study described a comparative sensing activity and selectivity of modified coated wire membrane sensors enriched with magnesium oxide and copper oxide nanoparticles for quantifying the breast cancer medication letrozole (LTZ) in its pharmaceutical form and human plasma. The fabricated sensors were based on the incorporation of LTZ with phosphomolybdic acid (PMA) to form the electroactive complex letrozole-phosphomolybate (LTZ-PM) in the presence of o-nitrophenyloctyl ether (o-NPOE) as a solvent mediator. Under optimum conditions, the modified sensors LTZ-PM-MgONPs and LTZ-PM-CuONPs demonstrated linear relationships of 1.0 × 10-8-1.0 × 10-2 and 1.0 × 10-10-1.0 × 10-2 mol L-1, respectively. Least square equations were calculated as EmV = (56.4 ± 0.7) log [LTZ] + 569.6 and EmV = (58.7 ± 0.3) log [LTZ] + 692.6 for LTZ-PM-MgONPs and LTZ-PM-CuONPs, respectively. The conventional type LTZ-PM showed a potential response EmV = (53.3 ± 0.5) log [LTZ] + 451.4 over concentration range of 1.0 × 10-6-1.0 × 10-2 mol L-1. The suggested sensors were successfully used to determine LTZ in pharmaceutical formulations and biosamples. Method validation ensured the suitability of the suggested potentiometric sensors.
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Affiliation(s)
- Ahmed Mahmoud Shawky
- Science and Technology Unit (STU), Umm Al-Qura University, Makkah 21955, Saudi Arabia;
| | - Maha Farouk El-Tohamy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia
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The predictive model for band gap prediction of metal oxide nanoparticles based on quasi-SMILES. Struct Chem 2021. [DOI: 10.1007/s11224-021-01748-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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44
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Biogenic Nanoparticles: Synthesis, Characterisation and Applications. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11062598] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Nanotechnology plays a big part in our modern daily lives, ranging from the biomedical sector to the energy sector. There are different physicochemical and biological methods to synthesise nanoparticles towards multiple applications. Biogenic production of nanoparticles through the utilisation of microorganisms provides great advantages over other techniques and is increasingly being explored. This review examines the process of the biogenic synthesis of nanoparticles mediated by microorganisms such as bacteria, fungi and algae, and their applications. Microorganisms offer a disparate environment for nanoparticle synthesis. Optimum production and minimum time to obtain the desired size and shape, to improve the stability of nanoparticles and to optimise specific microorganisms for specific applications are the challenges to address, however. Numerous applications of biogenic nanoparticles in medicine, environment, drug delivery and biochemical sensors are discussed.
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Saman S, Balouch A, Talpur FN, Memon AA, Mousavi BM, Verpoort F. Green synthesis of MgO nanocatalyst by using
Ziziphus mauritiana
leaves and seeds for biodiesel production. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6199] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Syed Saman
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Aamna Balouch
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Farah Naz Talpur
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Ayaz Ali Memon
- National Centre of Excellence in Analytical Chemistry University of Sindh Jamshoro Pakistan
| | - Bibi Maryam Mousavi
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
| | - Francis Verpoort
- Laboratory of Organometallics, Catalysis and Ordered Materials, State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of Technology Wuhan China
- National Research Tomsk Polytechnic University Tomsk Russian Federation
- Ghent University‐Global Campus Songdo Incheon South Korea
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Venkatachalam A, Martin Mark JA, D D, J R, Jesuraj JP. Sunlight active photocatalytic studies of Fe2O3 based nanocomposites developed via two-pot synthesis technique. INORG CHEM COMMUN 2021. [DOI: 10.1016/j.inoche.2020.108417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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47
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Tharani K, Jegatha Christy A, Sagadevan S, Nehru L. Fabrication of Magnesium oxide nanoparticles using combustion method for a biological and environmental cause. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2020.138216] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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48
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Enhancement degradation of formaldehyde by MgO/γ-Al2O3 catalyzed O3/H2O2 in a rotating packed bed. J Taiwan Inst Chem Eng 2021. [DOI: 10.1016/j.jtice.2021.01.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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49
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Alarfaj NA, El-Tohamy MF. New Functionalized Polymeric Sensor Based NiO/MgO Nanocomposite for Potentiometric Determination of Doxorubicin Hydrochloride in Commercial Injections and Human Plasma. Polymers (Basel) 2020; 12:E3066. [PMID: 33371354 PMCID: PMC7767339 DOI: 10.3390/polym12123066] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Accepted: 12/17/2020] [Indexed: 12/24/2022] Open
Abstract
The ultra-functional potential of nickel oxide (NiO) and magnesium oxide (MgO) nanoparticles (NPs), provides for extensive attention in the use of these metal oxides as a remarkable and electroactive nanocomposite in potentiometric and sensing investigations. This work proposed a new strategy for quantifying doxorubicin hydrochloride (DOX) in pharmaceuticals and human plasma by preparing a NiO/MgO core-shell nanocomposite modified coated wire membrane sensor. Doxorubicin hydrochloride was incorporated with phosphomolybdic acid (PMA) to produce doxorubicin hydrochloride phosphomolybdate (DOX-PM) as an electroactive material in the presence of polymeric high molecular weight poly vinyl chloride (PVC) and solvent mediator o-nitrophenyloctyl ether (o-NPOE). The modified sensor exhibited ultra sensitivity and high selectivity for the detection and quantification of doxorubicin hydrochloride with a linear relationship in the range of 1.0 × 10-11-1.0 × 10-2 mol L-1. The equation of regression was estimated to be EmV = (57.86 ± 0.8) log [DOX] + 723.19. However, the conventional type DOX-PM showed a potential response over a concentration range of 1.0 × 10-6-1.0 × 10-2 mol L-1 and a regression equation of EmV = (52.92 ± 0.5) log [DOX] + 453.42. The suggested sensors were successfully used in the determination of doxorubicin hydrochloride in commercial injections and human plasma.
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Affiliation(s)
| | - Maha F. El-Tohamy
- Department of Chemistry, College of Science, King Saud University, P.O. Box 22452, Riyadh 11495, Saudi Arabia;
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An Investigation on the Synthesis of Molybdenum Oxide and Its Silica Nanoparticle Composites for Dye Degradation. NANOMATERIALS 2020; 10:nano10122409. [PMID: 33276515 PMCID: PMC7761561 DOI: 10.3390/nano10122409] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 11/29/2020] [Accepted: 11/29/2020] [Indexed: 01/06/2023]
Abstract
The molybdenum oxide (MoO3) and MoO3@SiO2 nanoparticles were successfully prepared using the chemical bath deposition (CBD) method. The photocatalytic activities of molybdenum oxide (MoO3), SiO2, and MoO3@SiO2 nanoparticles composite have shown a synergistic photocatalytic effect of SiO2 combined with MoO3. The first-order degradation rate constants for MoO3, SiO2, and MoO3@SiO2 nanocomposite were 10.3 × 10−3 min−1, 15.1 × 10−3 min−1, and 16.3 × 10−3 min−1, respectively. The MoO3@SiO2 composite showed degradation efficiencies in the methylene blue solution close to 100% after 60 min of UV irradiation. The X-ray diffraction (XRD) showed that the MoO3 powder has a hexagonal crystal structure and the silica is the tridymite type of SiO2. The crystallite size was about 94 nm, 32 nm, and 125 nm for MoO3, silica, and MoO3@SiO2, respectively, as calculated by the Scherrer equation. The scanning electron microscopy (SEM) images revealed that the MoO3 powder consisted of a uniform hexagonal structure; the silica showed a rod-like micro-flake morphology and the MoO3@SiO2 composite had the appearance of coral-like structures.
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