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RISS 인기검색어
- 검색키워드
- 저자 : M. Bassyouni (검색결과 5 건)
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Wall to liquid mass transport and diffusion controlled corrosion in fixed bed reactors
M.H. Abdel-Aziz,M. Bassyouni,I.A.S. Mansour,A. Nagi 한국공업화학회 2014 Journal of Industrial and Engineering Chemistry Vol.20 No.5
The diffusion controlled corrosion at the inner wall of a fixed bed reactor was studied in terms of the wall to liquid mass transfer coefficient. Variables studied are solution flow rate, physical properties, and packing size and geometry. The effect of drag reducing polymers on the rate of mass transfer and on the rate of corrosion was studied. The presence of the drag reducing polymer decreased the rate of both mass transfer and corrosion by a factor ranging from 8.92% to 39.47%. All variables were correlated by dimensionless equations. Possible applications of these data in heat transfer were highlighted. 2013 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V.
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A review of polymeric nanocomposite membranes for water purification
M. Bassyouni,M.H. Abdel-Aziz,M.Sh. Zoromba,S.M.S Abdel-Hamid,Enrico Drioil 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.73 No.-
Nanocomposites are now commonly employed to augment the standard polymeric membrane materialsthat are used in water treatment processes. A number of different materials and methods have been putforward; amongst those that show the greatest promise so far are thin-film nanocomposite (TFN),electrospun polymeric nanofibrous membranes, carbon nanotubes, metal and metal oxides, grapheneand graphene oxide, and zwitterionic materials. This paper presents a detailed review of the currentdevelopments in the use of polymeric nanocomposite membranes for purifying water. Variousnanocomposite membranes have been reported to evaluate their effectiveness in terms of resistance tofouling and the performance of the membranes. A specific focus has been placed on better understandinghow nanomaterials can be used in a number of different ways, such as nanofiltration, micro-filtration,reverse osmosis and membrane distillation. This review aims to offer inspiration for further progress inthefield of water treatment and desalination employing polymeric nanocomposite membranes.
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M.H. Abdel-Aziz,E-S.Z. El-Ashtoukhy,M.Sh. Zoromba,M. Bassyouni,G.H. Sedahmed 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
In this work, removal of nitrates by electrocoagulation in a batch electrochemical cell with horizontallyoriented electrodes was studied, the anode was a horizontal Al serpentine tube whose inner surface canpotentially act as a built-in cooler to control the cell temperature, a H2 evolving Al plate cathode wasplaced beneath the anode at the cell bottom where the stirring action of H2 bubbles improve the mixingconditions at the anode. The effect of operating parameters, such as initial NO3 concentration, initial pHof the solution, applied current density, and NaCl concentration on the removal efficiency wasinvestigated. The electrical energy consumption of the cell was calculated at different operatingparameters in order to optimize the operating conditions. The removal efficiency of the cell reached 100%after 100 min. A kinetic model for the process was proposed and verified by the experimental data. Themerits of the present new cell which is self-stirred and contains a built-in heat transfer facility fortemperature control were highlighted. Importance of the present work for agriculture drainage waterand underground water remediation was pointed out.
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Fatma A. Bassyouni,Tamer S. Saleh,Mahmoud M. ElHefnawi,Sherein I. Abd El-Moez,Waled M. El-Senousy,Mohamed E. Abdel-Rehim 대한약학회 2012 Archives of Pharmacal Research Vol.35 No.12
Novel heterocyclic compounds containing benzimidazole derivatives were synthesized from 2-(1Hbenzimidazol-2-yl) acetonitrile (1) and arylhydrazononitrile derivative 2 was obtained via coupling of 1 with 4-methyl phenyldiazonium salt, which was then reacted with hydroxylamine hydrochloride to give amidooxime derivative 3. This product was cyclized into the corresponding oxadiazole derivative 4 upon reflux in acetic anhydride. Compound 4 was refluxed in DMF in the presence of triethylamine to give the corresponding 5-(1H-benzimidazol-2-yl)-2-p-tolyl-2H-1,2,3-triazol-4-amine 6. Treatment of compound 6 with ethyl chloroformate afforded 2,6-dihydro-2-(4-methylphenyl)-1,2,3-triazolo[4'',5''-4',5']pyrimido[1,6-a]benzimidazole-5(4H)-one (8). 1,2-bis(2-cyanomethyl-1H-benzimidazol-1-yl)ethane-1,2-dione (10) was synthesized via the condensation reaction of 2-(1H-benzimidazol-2-yl) acetonitrile (1) and diethyloxalate. The reactivity of compound 10 towards some diamine reagents was studied. The in vitro antimicrobial activity of the synthesized compounds was investigated against several pathogenic bacterial strains such as Escherichia coli O157, Salmonella typhimurium, E. coli O119, S. paratyphi, Pseudomonas aeruginosa, Staphylococcus aureus, Listeria monocytogenes and Bacillus cereus. The results of MIC revealed that compounds 12a-c showed the most effective antimicrobial activity against tested strains. On the other hand, compounds 12a, b exhibited high activity against rotavirus Wa strain while compounds 12b, c exhibited high activity against adenovirus type 7. In silico target prediction, docking and validation of the compounds 12a-c were performed. The dialkylglycine decarboxylase bacterial enzyme was predicted as a potential bacterial target receptor using pharmacophorebased correspondence with previous leads; giving the highest normalized scores and a high correlation docking score with mean inhibition concentrations. A novel binding mechanism was predicted after docking using the MOE software and its validation.
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DFT and experimental study on adsorption of dyes on activated carbon prepared from apple leaves
Abdel-Aziz Mohamed Helmy,El-Ashtoukhy Elsayed Zakaria,Bassyouni Mohamed,Al-Hossainy Ahmed Farouk,Fawzy Eman M.,Abdel-Hamid Shereen M. S.,Zoromba Mohamed Shafick 한국탄소학회 2021 Carbon Letters Vol.31 No.5
This work reports utilization of apple leaves as a source of activated carbon. Activated carbon from apple leaves is prepared by two diferent methods, thermal activation where AC1 is obtained and chemical activation using H3PO4 and ZnCl2 where AC2 and AC3 are obtained, respectively. XRD analysis revealed that all types of prepared ACs have a semi-crystalline nature with a mean crystallite size of 13, 21.02, and 39.47 nm for AC1, AC2, and AC3, respectively. To identify the most suitable desorption temperature, the exothermic behavior was discovered for the three types of ACs by DSC. The exothermic onset temperatures are 340 °C, 200 °C, 400 °C, or AC1, AC2, and AC3, respectively. The point of zero charge for the three types of ACs is 8.6, 7.3, and 2.5 for AC1, AC2, and AC3, respectively. The BET surface area analysis data demonstrated that mesoporous structure was developed in AC1 and AC2, while a microporous structure was developed in AC3. Quantum chemical calculations for ACs is carried out using Density Functional Theory (DFT). Application of the prepared ACs in adsorption of basic dye C.I. base blue 47 is studied. The maximum removal efciency was 65.1%, 96% and 99% for AC1, AC2, and AC3, respectively under the infuence of diferent operating aspects. Adsorption data are modeled by Langmuir, Freundlich, and Temkin isotherms. The data revealed that adsorption of basic dye C.I. base blue 47 on AC1 follows Langmuir isotherm and adsorption on AC2 and AC3 follows Freundlich isotherm.
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