Sol‐gel coupled ultrasound synthesis of photo‐activated magnesium oxide nanoparticles: Optimization and antibacterial studies

2020 ◽  
Author(s):  
Daneeswari Thamilvanan ◽  
Jaison Jeevanandam ◽  
Yiik S. Hii ◽  
Yen S. Chan
Keyword(s):  
Magnesium Oxide ◽  
Sol Gel ◽  
Oxide Nanoparticles ◽  
Antibacterial Studies ◽  
Magnesium Oxide Nanoparticles

Synthesis and characterization of magnesium Oxide nanoparticles by sol-gel method

2020 ◽  
Vol 3 (3) ◽  
Author(s):  
Jegadeeswari A ◽  
Nivetha S
Keyword(s):  
Magnesium Oxide ◽  
Sol Gel ◽  
Morphological Characterization ◽  
Magnesium Nitrate ◽  
Oxide Nanoparticles ◽  
Mgo Nanoparticles ◽  
Gel Method ◽  
Sol Gel Method ◽  
Magnesium Oxide Nanoparticles

Magnesium oxide was hygroscopic solid mineral that occurs naturally as periclase.Magnesium oxide had high thermal conductivity; it gets heated when the electricity was passed through it. Magnesia crucible had a stability of 2400°C in air, 1700°C in reducing atmosphere. Magnesium oxide nanoparticles were obtained from the mixture of magnesium nitrate as precursor and sodium hydroxide as precipitating agent by sol-gel method. Finally,the resultant white crystalline powder of MgO was annealed at various temperatures of 80°C, 135°C and 180°C. The analytical studies (XRD, SEM FTIR, EDAX) reveals the morphological characterization of MgO nanoparticles. The Scanning Electron Microscopy (SEM) indicates the structures of MgO nanoparticles. The crystal size of MgO nanoparticles was obtained by X-Ray Diffraction (XRD). The optical properties of the sample were obtained by UV- Visible spectroscopy. Fourier Transform infrared spectroscopy indicates powdered composition of the sample. EDAX indicates elementary composition of the MgO nanoparticles.

Synthesis of Magnesium Oxide Nanoparticles by Sol-Gel Process

2007 ◽  
pp. 983-986
Author(s):  
Rizwan Wahab ◽  
S.G. Ansari ◽  
M.A. Dar ◽  
Young Soon Kim ◽  
Hyung Shik Shin
Keyword(s):  
Magnesium Oxide ◽  
Sol Gel ◽  
Oxide Nanoparticles ◽  
Magnesium Oxide Nanoparticles ◽  
Sol Gel Process

Decoration of magnesium oxide nanoparticles on O-MWCNTs and its antibacterial studies

2015 ◽  
Vol 26 (3) ◽  
pp. 263-270 ◽  
Author(s):  
Y. T. Prabhu ◽  
K. Venkateswara Rao ◽  
B. Siva Kumari ◽  
Tambur Pavani
Keyword(s):  
Magnesium Oxide ◽  
Oxide Nanoparticles ◽  
Antibacterial Studies ◽  
Magnesium Oxide Nanoparticles

Synthesis of Magnesium Oxide Nanoparticles by Sol-Gel Process

2007 ◽  
Vol 558-559 ◽  
pp. 983-986 ◽  
Author(s):  
Rizwan Wahab ◽  
S.G. Ansari ◽  
M.A. Dar ◽  
Young Soon Kim ◽  
Hyung Shik Shin
Keyword(s):  
Magnesium Oxide ◽  
Sol Gel ◽  
Thermo Gravimetric Analysis ◽  
Magnesium Nitrate ◽  
Oxide Nanoparticles ◽  
Gravimetric Analysis ◽  
Magnesium Oxide Nanoparticles ◽  
Good Crystallinity ◽  
Sol Gel Process ◽  
Diffraction Patterns

Cubic shaped Magnesium oxide nanoparticles were successfully synthesized by sol-gel method using magnesium nitrate and sodium hydroxide at room temperature. Hydrated Magnesium oxide nanoparticles were annealed in air at 300 and 500°C. X-ray diffraction patterns indicate that the obtain nanoparticles are in good crystallinity, pure magnesium oxide periclase phase with (200) orientation. Morphological investigation by FESEM reveals that the typical sizes of the grown nanoparticles are in the range of 50-70nm. Powder composition was analyzed by the FTIR spectroscopy and the results confirms that the conversion of brucite phase magnesium hydroxide in to magnesium oxide periclase phase was achieved at 300°C.The Thermo-gravimetric analysis showed the phase transition of the synthesized magnesium oxide nanoparticles occurs at 280-300°C.

Practical Computation in the Techno-Economic Analysis of the Production of Magnesium Oxide Nanoparticles using Sol-gel Method

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Jessica Veronica ◽  
◽  
Lidia Intan Febriani ◽  
Citra Nurhashiva ◽  
Risti Ragadhita ◽  
...  
Keyword(s):  
Magnesium Oxide ◽  
Capital Expenditure ◽  
Sol Gel ◽  
Payback Period ◽  
Profit Margin ◽  
Oxide Nanoparticles ◽  
Worst Case ◽  
Gel Method ◽  
Sol Gel Method ◽  
Magnesium Oxide Nanoparticles

The purpose of this study was to determine the feasibility of a project for the manufacture of magnesium oxide nanoparticles using the sol-gel method by evaluating both technically and economically. Evaluation from the technical side is determined by stoichiometric calculations and evaluation of the initial factory design, while the evaluation from the economic side is determined by several parameters to determine the benefits of the project to be established (Gross Profit Margin, Internal Rate Return, Break-Even Point, Payback Period, and Cumulative Net Present Values). Some of these economic evaluation parameters were analyzed to inform the production potential of magnesium oxide nanoparticles, such as determining the level of profitability of a project (Gross Profit Margin), predicting the length of time required for an investment to return the initial capital expenditure (Payback Period), predicting the condition of a production project in the form of a production function in years (Cumulative Net PresentValue), etc. The results of the technical analysis show that this project can produce 1,425 kg of magnesium oxide nanoparticles per day and the total cost of the equipment purchased is 45,243 USD. Payback Period analysis shows that the investment will be profitable after more than three years. To ensure project feasibility, the project is estimated from ideal to worst-case conditions in production, including salary, sales, raw materials, utilities, as well as external conditions such as taxes

Antibacterial activity of magnesium oxide nanoparticles prepared by Calcination method

2019 ◽  
Vol 10 (03) ◽  
Author(s):  
Elaf Ayad Kadhem ◽  
Miaad Hamzah Zghair ◽  
Sarah , Hussam H. Tizkam, Shoeb Alahmad Salih Mahdi ◽  
Hussam H. Tizkam ◽  
Shoeb Alahmad
Keyword(s):  
Antibacterial Activity ◽  
Magnesium Oxide ◽  
Diffusion Method ◽  
Oxide Nanoparticles ◽  
Gram Negative Bacteria ◽  
Gram Positive ◽  
Gram Negative ◽  
Gram Positive Bacteria ◽  
Magnesium Oxide Nanoparticles ◽  
Agar Disc

magnesium oxide nanoparticles (MgO NPs) were prepared by simple wet chemical method using different calcination temperatures. The prepared NPs were characterized by Electrostatic Discharge (ESD), Scanning Electron Microscope (SEM) and X-ray Diffraction (XRD). It demonstrates sharp intensive peak with the increase of crystallinty and increase of the size with varying morphologies with respect to increase of calcination temperature. Antibacterial studies were done on gram negative bacteria (E.coli) and gram positive bacteria (S.aureus) by agar disc diffusion method. The zones of inhibitions were found larger for gram positive bacteria than gram negative bacteria, this mean, antibacterial MgO NPs activity more active on gram positive bacteria than gram negative bacteria because of the structural differences. It was found that antibacterial activity of MgO NPs was found it has directly proportional with their concentration.

Applications of ZnO and MgO Nanoparticles in Reducing Zinc Pollution Level in Rubber Manufacturing Processes: A Review

2020 ◽  
Vol 6 (2) ◽  
pp. 103-107 ◽  
Author(s):  
Seyyed Mohammad Javadi
Keyword(s):  
Zinc Oxide ◽  
Fatty Acid ◽  
Magnesium Oxide ◽  
Environmental Effects ◽  
Pollution Level ◽  
Oxide Nanoparticles ◽  
Mgo Nanoparticles ◽  
Magnesium Oxide Nanoparticles ◽  
Council Directive ◽  
Zno Particles

Background: Rubber vulcanization is a consolidated chemical process to enhance the mechanical properties of the polymeric material by sulfur crosslinking of the polymer chains, such as rubber. Vulcanization Activators are important rubber processing additives that activate sulfur cure and improve the efficiency of sulfur-based cure systems. The most common activator is zinc fatty acid ester that is often formed in-situ by the reaction of fatty acid with zinc oxide. Although zinc is one of the less harmful heavy metals, according to European Council Directive 2004/73/EC, the reduction of zinc level in the environment has become an important task because of its toxic effect on aquatic organisms. : The current study reviews the research achievements in the field of reducing the consumption of micronutrients of ZnO particles based on the use of nanoparticles instead of them in the polymer industry. Among the proposed methods, due to the less environmental effects of magnesium oxide, the use of MgO nanoparticles instead of zinc oxide has also achieved good results. Objective: The aim of this paper is considering suggested different methods on the reduction of using ZnO particles in related industries, the use of ZnO nanoparticles has had better results than its particles. In addition, due to the less environmental effects of magnesium oxide, magnesium oxide nanoparticles can be used instead of micronutrients of zinc oxide. Overall, the results of various investigations show that reducing the diameter of the zinc oxide particles reduces the amount required for curing the rubber and thus reduces its toxic effects. Also, the use of magnesium oxide nanoparticles instead of zinc oxide in different concentrations is investigated.

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