A Comparative study on synthesis, characterization and photocatalytic activities of MgO and Fe/MgO nanoparticles

Borhade, Ashok V.; Kanade, K.G.; Tope, Dipak R.; Patil, Manisha D.

doi:10.1007/s11164-012-0515-z

Cited by 21 publications

(12 citation statements)

References 13 publications

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“…e DSC curve has one endothermic peak at 660°C where maximum weight loss occurs which implies phase transition of Mg (OH) 2 to MgO. Hence, the pure MgO nanoparticles have obtained with pure phase at 700°C and the obtained results are well consistent with previous reports [79,[81][82][83][84][85][86][87].…”

Section: Ermogravimetric (Tg) Differential Scanning Calorimetric (Dsc) and Differential Ermal Analysis (Dta)supporting

confidence: 89%

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

Venkatachalam

Jesuraj

Kalainathan

2021

Journal of Chemistry

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The magnesium oxide nanoparticles (MgO NPs) were prepared from Moringa oleifera leaf extract. Phytochemicals are derived from plant extract which are served as stabilizing and capping agents. This green route has been attracted owing to speed, reliable, and eco-friendly and cost-effective one. The synthesized magnesium oxide nanoparticles were taken into three different calcination temperatures (500, 600, and 700°C). The powder X-ray diffraction (PXRD) study shows a pure phase of face-centered cubic structure. Periclase MgO nanoparticles were prepared. The optical band gap of MgO nanoparticles is 4.5 eV, and its absorption in the UV region was observed by UV-visible spectroscopy (UV-Vis). Photoluminescence spectra have exhibited multicolor emissions were being at UV and visible region due to defect centers (F centers) of MgO nanoparticles. EDX (energy dispersive X-ray spectrum) has given the stoichiometric ratio of Mg and O. The functional groups have been studied by Fourier transformed infrared spectroscopy (FTIR), surface morphology transformation has been identified by scanning electron microscopy (SEM) studies, and VSM measurements have given the information of diamagnetic nature of MgO nanoparticles. H-R TEM micrographs have confirmed that particles were in nanorange matched with XRD report. Polycrystalline nature has been observed pattern information. TG-DSC characterization revealed phase transition and weight loss information. D-band and G-band of MgO nanoparticles are studied by micro-Raman analysis. Dielectric analysis has proven that MgO nanoparticles will be a promising candidate for linear dielectric ceramics, thermistor. The present resent studies have revealed that MgO powder will be an economical and promising candidate in superconductor, optoelectronic device, and energy storage applications.

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Section: Ermogravimetric (Tg) Differential Scanning Calorimetric (Dsc) and Differential Ermal Analysis (Dta)supporting

confidence: 89%

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

Venkatachalam

Jesuraj

Kalainathan

2021

Journal of Chemistry

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“…The GC programming was reverse polarized in order to attain hydrogen peaks in the upward direction to allow a comparative analysis with the peak intensities of the various gases produced [11]. nanoparticles, the peak positions remained the same, which suggested that Fe did not alter MgO crystal structure and was suitably deposited on the surfaces of MgO [35]. Though the presence of an additional iron oxide phase α-Fe 2 O 3 was observed in Fe/MgO(500) samples (Fig.…”

Section: E Photocatalytic Hydrogen Evolutionmentioning

confidence: 99%

“…Among transition metal ions, iron (Fe) has a high transition ability and can trap multiple types of electron-hole pairs [32][33][34]. Thus incorporating Fe on MgO may improve the separation of the maximum number of electrons and holes, thereby avoiding recombination [35]. In recent years, graphene, a two-dimensional (2D) network of hexagonally struc-tured sp 2 -hybridized carbon atoms, has sparked significant research interest in various energy adaptation applications as well as in the field of photocatalysis [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic water splitting ability of Fe/MgO-rGO nanocomposites towards hydrogen evolution

Sharmin

Roy

Basith

2021

International Journal of Hydrogen Energy

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“…In contrast, some studies have focused on investigating a series of CoxFe 3 -xO4 nanoparticle-supported MgO on the activation of the photocatalyst system for heterogeneous degradation of Rhaodamine B. It was found that the greater the cobalt content in the Fe-Co/MgO catalyst system, the better removal performance was achieved (Borhade et al 2012). Meanwhile, bimetallic Fe-Co/MgO catalyst resulted in greater nanocarbon synthesis, besides preventing catalyst particle aggregation ( Figure 36).…”

Section: Fe-co/mgo Heterogeneous Catalystmentioning

confidence: 99%

Magnesium oxide as a heterogeneous catalyst support

Julkapli

Bagheri

2016

Reviews in Inorganic Chemistry

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AbstractResearchers normally consider MgO as a promising high-surface-area heterogeneous catalyst support, additive, and promoter for many kinds of chemical reactions due to its certain properties, including stoichiometry and composition, cation valence, redox properties, acid-base character, and crystal and electronic structure. The presence of MgO as a support catalyst also modifies the electronic state of the overall catalytic performance by electron transfer between the native catalyst and MgO as support. The influence is clarified by alteration of acid-base properties of the catalyst-supported MgO. Meanwhile, the method, chemical composition, and condition in the preparation of MgO are the important factors affecting its surface and catalytic properties. Therefore, MgO with a high surface area and nanocrystalline structure has encouraging applications for some reactions, including as dry reforming, dehydrohalogenation, oxidative dehydrogenation of butane, nonoxidative dehydrogenation of ethylbenzene, decomposition of CCl

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A Comparative study on synthesis, characterization and photocatalytic activities of MgO and Fe/MgO nanoparticles

Cited by 21 publications

References 13 publications

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

Moringa oleifera Leaf Extract-Mediated Green Synthesis of Nanostructured Alkaline Earth Oxide (MgO) and Its Physicochemical Properties

Photocatalytic water splitting ability of Fe/MgO-rGO nanocomposites towards hydrogen evolution

Magnesium oxide as a heterogeneous catalyst support

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