Characterization and Evaluation of Reverse Osmosis Membranes Modified with Ag2O Nanoparticles to Improve Performance

The objective of this work was to prepare and characterize a new and highly efficient modified membrane by
in situ interfacial polymerization on porous polysulfone supports. The process used m-phenylenediamine and
trimesoyl chloride in hexane, incorporating silver oxide Ag2O nanoparticles of varied concentrations from 0.001 to

Reverse osmosis membranes prepared by interfacial polymerization in n-heptane containing different co-solvents

The objective of this work was to develop a suitable and highly efficient reverse osmosis membrane incorporating a co-solvent system. A polyamide thin-film composite membrane has been prepared by interfacial polymerization in n-heptane using diethyl ether and ethyl acetate as co-solvents at various concentrations. Heptane has a molecule of larger C–C chain than that of traditionally used hexane. Heptane was selected in order to study its effect on the morphology

Synthesis, Spectroscopic Investigations (X-ray, NMR and TD-DFT), Antimicrobial Activity and Molecular Docking of 2,6-Bis(hydroxy(phenyl)methyl)cyclohexanone

The synthesis of 2,6-bis(hydroxy(phenyl)methyl)cyclohexanone 1 is described. The molecular structure of the title compound 1 was confirmed by NMR, FT-IR, MS, CHN microanalysis, and X-ray crystallography. The molecular structure was also investigated by a set of computational studies and found to be in good agreement with the experimental data obtained from the various spectrophotometric techniques. The antimicrobial activity and molecular docking of the synthesized compound was investigated. 

Synthesis and characterization of reverse osmosis membranes modified with BaTiO3 nanoparticles to improve performance

This paper deals with the synthesis and the characterization of reverse osmosis membranes reached by barium titanium oxide nanoparticles. A composite membrane containing BaTiO3 nanoparticles (NPs) was prepared by the in situ interfacial polymerization (IP) process on porous polysulfone supports. Aqueous m-phenyl diamine (MPD) and organic trimesoyl chloride (TMC)-NPs mixture solutions were used in the IP process. BaTiO3 NPs with a size between 100–200 nm were used as the fillers to fabricate nanocomposite membranes at concentrations ranging from 0.001% to 0.01% wt%.

Green Approach for the Effective Reduction of Graphene Oxide Using Salvadora persica L. Root (Miswak) Extract

Recently, green reduction of graphene oxide (GRO) using various natural materials, including plant extracts, has drawn significant attention among the scientific community. These methods are sustainable, low cost, and are more environmentally friendly than other standard methods of reduction. Herein, we report a facile and eco-friendly method for the bioreduction of GRO using Salvadora persica L. (S. persica L.) roots (miswak) extract as a bioreductant.

Final Exam of 105

Final Exam of Geo 105 ٍSecond semester 1437-1438 
Sunday 25-08-1438, 9-12, Building 4, 1 B 1/80/2 

214 Eng

أسس البلاغة والكتابة

ملحقات المادة الدراسية

215 نجل

مقدمة في الكتابة والبلاغة

الصفحات

اشترك ب KSU Faculty آر.إس.إس