S
Sayed A. Ahmed
Researcher at Beni-Suef University
Publications - 111
Citations - 2270
Sayed A. Ahmed is an academic researcher from Beni-Suef University. The author has contributed to research in topics: Adsorption & Chemistry. The author has an hindex of 22, co-authored 99 publications receiving 1507 citations. Previous affiliations of Sayed A. Ahmed include Cairo University & South Valley University.
Papers
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Journal ArticleDOI
Photocatalytic degradation of malachite green dye using chitosan supported ZnO and Ce–ZnO nano-flowers under visible light
Alaa Magdy Saad,Mostafa R. Abukhadra,Sayed A. Ahmed,Ali M. Elzanaty,A.H. Mady,Mohamed A. Betiha,Jae-Jin Shim,Abdelrahman M. Rabie,Abdelrahman M. Rabie +8 more
TL;DR: Two types of chitosan-based composites were synthesized under microwave irradiation and characterized as advanced catalysts of enhanced photocatalytic activity under the visible light and showed enhancement in the photocatalyst removal of M.G by 54% and 87%, respectively, as compared to the pure ZnO.
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Diatomite supported by CaO/MgO nanocomposite as heterogeneous catalyst for biodiesel production from waste cooking oil
Abdelrahman M. Rabie,Mohamed Shaban,Mostafa R. Abukhadra,Rania Hosny,Sayed A. Ahmed,Nabel A. Negm +5 more
TL;DR: In this article, a novel basic heterogeneous catalyst was prepared from purified domestic diatomite supported by CaO/MgO composite, and the maximum obtained biodiesel yield reached 96.47% after 120min at 90°C using 6wt% catalyst and 1:15 oil: methanol ratio.
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Synthesis and anti-tumor activities of some new pyridines and pyrazolo[1,5-a]pyrimidines.
TL;DR: These derivatives of 3-hydroxy-1-(2-naphthyl)prop-2-en-1-one shows potent anti-tumor cytotoxic activity in vitro using different human cancer cell lines.
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H2O2-activated anthracite impregnated with chitosan as a novel composite for Cr(VI) and methyl orange adsorption in single-compound and binary systems: Modeling and mechanism interpretation
Essam A. Mohamed,Ali Q. Selim,Sayed A. Ahmed,Lotfi Sellaoui,Adrian Bonilla-Petriciolet,Alessandro Erto,Zichao Li,Yanhui Li,Moaaz K. Seliem +8 more
TL;DR: In this article, a composite of chitosan and hydrogen peroxide-treated anthracite sheets was applied for the single and simultaneous adsorption of Cr(VI) and methyl orange (MO) at different temperature (25-45°C) and pH (2-10).
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Insight into novel β-cyclodextrin-grafted-poly (N-vinylcaprolactam) nanogel structures as advanced carriers for 5-fluorouracil: Equilibrium behavior and pharmacokinetic modeling
TL;DR: In this article, β-cyclodextrin-grafted-Nvinylcaprolactam nanogel structures (β-CD-g-PNVCL NG) were synthesized with different ratios by free radical graft copolymerization in aqueous media.