Recent Developments on Catalytic Applications of Nano-Crystalline Magnesium Oxide

Chintareddy, Venkat Reddy; Kantam, M. Lakshmi

doi:10.1007/s10563-011-9113-0

Cited by 23 publications

(8 citation statements)

References 104 publications

(143 reference statements)

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“…Magnesium oxide is considered to be environmentally friendly, nontoxic, and economical. It can also be used as a heterogeneous catalyst and as an effective destructive chemical adsorbent in the treatment of toxic gases and wastewater (Chintareddy & Kantam, 2011; Mohammadi, Bazrafshan, Noroozifar, & Ansari‐Moghaddam, 2016). Magnesium oxide is also used in antacids, antidote, biomolecular testing, and diagnosis (Kaur et al, 2018).…”

Section: Toxicity Of Metal Oxide Nanoparticles To Vascular Endotheliamentioning

confidence: 99%

Research progress on toxicity, function, and mechanism of metal oxide nanoparticles on vascular endothelial cells

Wang

Tang

2020

J of Applied Toxicology

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Metal oxide nanoparticles present stable and unique performance that makes them suitable for various biomedical applications. There are four common exposure ways that nanoparticles enter our body: injection, inhalation, skin penetration, and ingestion. Among them, injection, ingestion, and skin routes may become significant ways for nano‐scale treatment and cosmetics, and inhalation is the essential way for occupational exposure. All those nanoparticles could pass through the exposure routes and enter the circulation, which could cause damage on the cardiovascular system. So it is necessary to evaluate the toxicity of metal oxide nanoparticles and to explore the mechanism. This review chose four commonly used nanometal oxides to discuss about the toxicity they produced, the function they affected, and the mechanisms on cardiovascular endothelial cells. First, we discussed the toxicity they caused. These nanoparticles are less toxic when applied in low doses, but owing to the small particle size and large specific surface area, acute exposure or the metal ions released by nanoparticles will lead to phenotypic changes of endothelial cells, oxidative stress, and apoptosis. An endothelial cell is an essential part of blood vessels and could act as a barrier, maintain vascular tension, and keep the balance between coagulation and anticoagulation. Once vascular endothelium is injured or exposed to vascular risk factors, it would cause endothelial activation, endothelial dysfunction, and nitric oxide (NO) synthase (NOS) dysfunction, which are closely related to the cardiovascular disease. Finally, we talked about the mechanisms by four levels, and we especially mentioned inflammation, the production of reactive oxygen species, and NO.

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Section: Toxicity Of Metal Oxide Nanoparticles To Vascular Endotheliamentioning

confidence: 99%

Research progress on toxicity, function, and mechanism of metal oxide nanoparticles on vascular endothelial cells

Wang

Tang

2020

J of Applied Toxicology

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“…Magnesium oxide (MgO) and magnesium hydroxide (Mg(OH) 2 ) are two of the most environmentally friendly materials when compared to other materials [3][4][5]. For properties such as flame resistance, dielectric resistance, and mechanical strength; and micro structural properties such as porosity, large surface area catalysis, acid-base sites, and gas adsorption, MgO is well received in industrial applications such as ceramics, cement, and water treatments [2,[5][6][7][8][9][10][11]. At intermediate temperatures, CO 2 absorbents based on MgO have been identified as promising.…”

Section: Introductionmentioning

confidence: 99%

Morphology Design and Fabrication of Bio-Inspired Nano-MgO–Mg(OH)2 via Vapor Steaming to Enable Bulk CO2 Diffusion and Capture

Senevirathna

Lee

et al. 2022

Materials

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The absorption of CO2 on MgO is being studied in depth in order to enhance carbon engineering. Production of carbonate on MgO surfaces, such as MgCO3, for example, has been shown to hinder further carbon lattice transit and lower CO2 collecting efficiency. To avoid the carbonate blocking effect, we mimic the water harvesting nano-surface systems of desert beetles, which use alternate hydrophobic and hydrophilic surface domains to collect liquid water and convey condensed droplets down to their mouths, respectively. We made CO2-philic MgO and CO2-phobic Mg(OH)2 nanocomposites from electrospun nano-MgO by vapor steaming for 2–20 min at 100 °C. The crystal structure, morphology, and surface properties of the produced samples were instrumentally characterized using XRD, SEM, XPS, BET, and TGA. We observed that (1) fiber morphology shifted from hierarchical particle and sheet-like structures to flower-like structures, and (2) CO2 capture capacity shifted by around 25%. As a result, the carbonate production and breakdown processes may be managed and improved using vapor steaming technology. These findings point to a new CO2 absorption technique and technology that might pave the way for more CO2 capture, mineralization, and fuel synthesis options.

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“…Despite many uses, MgO is considered as one of the promising materials as a solid base catalyst and support owing to their wide surface area and tunable surface basicity . In the field of heterogeneous catalysis, MgO holds a remarkable position as it exhibits strong surface basicity that consequently associates with the diverse base‐catalyzed organic transformations . Numerous salient synthesis reactions, such as Meerwein–Ponndorf–Verley reduction, alkylation, aldolization, esterification and condensations can be performed using MgO based heterogeneous solid base catalysts .…”

Section: Introductionmentioning

confidence: 99%

Optimizing the Surface Properties of MgO Nanoparticles Towards the Transesterification of Glycerol to Glycerol Carbonate

Manikandan

Sangeetha

2019

ChemistrySelect

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MgO nanoparticles (NPs) were successfully fabricated by a facile, inexpensive and green synthesis protocol using soluble starch as a green bio-template. The influence of calcination temperature on its textural properties and catalytic efficiency has been investigated in detail. The enhancement of MgO NPs crystallinity by increasing the calcination temperature is found from X-ray diffraction (XRD) and Transmission electron microscopy (TEM) analyses. N 2 -sorption studies and CO 2 -temperature programmed desorption (TPD) measurements revealed that the MgO NPs calcined at 500°C have superior textural properties and strong surface basicity. X-ray photoelectron spectroscopy (XPS) analysis conferred that the MgO-500 NPs furnished the optimized surface Lewis sites, consequently outperforms better transesterification activity. The fabricated MgO-500 NPs exhibited an excellent catalytic activity towards the efficient conversion of glycerol to glycerol carbonate (GC) with more than 93% selectivity. The intelligibility of the adopted synthesis is eco-benign and wide utility as a solid base catalyst for several organic transformations.

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Recent Developments on Catalytic Applications of Nano-Crystalline Magnesium Oxide

Cited by 23 publications

References 104 publications

Research progress on toxicity, function, and mechanism of metal oxide nanoparticles on vascular endothelial cells

Research progress on toxicity, function, and mechanism of metal oxide nanoparticles on vascular endothelial cells

Morphology Design and Fabrication of Bio-Inspired Nano-MgO–Mg(OH)2 via Vapor Steaming to Enable Bulk CO2 Diffusion and Capture

Optimizing the Surface Properties of MgO Nanoparticles Towards the Transesterification of Glycerol to Glycerol Carbonate

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