M. M. Hefny
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View article: Green Synthesis of Magnetite Nanoparticles Using Waste Natural Materials and Its Application for Wastewater Treatment
Green Synthesis of Magnetite Nanoparticles Using Waste Natural Materials and Its Application for Wastewater Treatment Open
In this study, a simple, environment-friendly, and cost-effective method is developed to synthesize metallic nanoparticles (NPs) from natural waste residues, such as onion, potato, tea, and moringa, and the effect of extract residues on ef…
View article: NUMBERING SYSTEM IN THE ANCIENT EGYPTIAN DOCUMENTS
NUMBERING SYSTEM IN THE ANCIENT EGYPTIAN DOCUMENTS Open
The numbering system was an uncommon scribal practice throughout the Ancient Egyptian documents; however, it was used in some texts from different periods. So different types of numbering will be presented in this paper, such as papyrus ro…
View article: Evaluation of Agrowaste Species for Removal of Heavy Metals from Synthetic Wastewater
Evaluation of Agrowaste Species for Removal of Heavy Metals from Synthetic Wastewater Open
This study’s goal was to learn more about how agrowaste plants tolerate, absorb, and accumulate a number of metals that are of relevance to the environment. Adsorption of lead (Pb), chromium (Cr), selenium (Se), copper (Cu), and zinc (Zn) …
View article: Removal of Cadmium, Nickel, and Zinc from aqueous solutions by activated carbon prepared from corncob - waste agricultural materials
Removal of Cadmium, Nickel, and Zinc from aqueous solutions by activated carbon prepared from corncob - waste agricultural materials Open
Adsorption of zinc (Zn), cadmium (Cd), and nickel (Ni) from aqueous solutions by corncob (CC) and granular activated carbon prepared from corncob (GACC) were carried out. Synthetic solutions of Cd, Ni, and Zn at 3.0 ppm each were used to p…
View article: Estimation of Cell Voltage and Power Density for Alcohols Electro-Oxidation on Modified Platinum Surface
Estimation of Cell Voltage and Power Density for Alcohols Electro-Oxidation on Modified Platinum Surface Open
Fuel cell performance was studied with regard to alcohols electro-oxidation on modified platinum under different conditions such as temperature and modification time.This research is aimed to estimate each of cell voltages and power densit…
View article: Electrooxidation of Methanol and Ethanol in Alkaline Solutions on Modified Platinum Electrode
Electrooxidation of Methanol and Ethanol in Alkaline Solutions on Modified Platinum Electrode Open
This work aims to activate a platinum electrode by repetitive cyclic electrochemical polarization of smooth platinum in alkaline solutions.The resultant modified electrode has been tested as an electro-catalyst for oxidation of candidate f…
View article: Kinetics of Ethanol Electrooxidation at a Modified Platinum Electrode in 0.1M Perchloric acid
Kinetics of Ethanol Electrooxidation at a Modified Platinum Electrode in 0.1M Perchloric acid Open
The present paper reports cyclic voltammetry (CV) studies on electrooxidation of ethanol at a modified Pt electrode surface in 0.1M perchloric acid solution.The activity of Pt electrode towards ethanol oxidation increases with increasing n…