Removal of Radio and Stable Isotopes of Cobalt and Cesium from Contaminated Aqueous Solutions by Isatin-Derived Ligand Riyam N. Khalaf, Sattar S. Ibrahim, Zeinab A. El-Shafiey, Abeer A. Faheim, Hosam M. Saleh Appliedchem, 2025 This study investigated the effectiveness of a ligand known as (2-Mercapyo-phenylimino)-1,3-dihydro-indol-2-one-based ligand, in removing stable/radioactive cesium and cobalt from contaminated wastewater. Several parameters, such as contact duration, temperature, adsorbent quantity, pH of the medium, and concentration of adsorbate, have been investigated as primary active parameters impacting the adsorption process. Regarding the stable isotopes, the concentrations of Co2+ and Cs+ were measured before and after the treatment processes using the Optical Emissions Spectroscopy with Inductively Coupled Plasma (ICP-OES) technique. Additionally, kinetic and equilibrium isotherm models were applied to understand the equilibrium data. Both Cs+ and Co2+ were ideally eliminated after 120 and 60 min, respectively. The optimal pH for Cs+ was 6.3, while that for Co2+ was 5. The results indicate that the adsorption process is endothermic for Co2+ and exothermic for Cs+. Three thermodynamic parameters (∆G°, ∆H°, and ∆S°) were calculated. The reported R2 values for the Freundlich and Langmuir models showed that the adsorption process for Cs+ and Co2+ always followed these isotherms, regardless of the temperature used. For Cs+, the maximum single-layer capacity (qmax) was 15.10 mg g−1, while for Co2+, it was 62.11 mg g−1. When the aqueous medium was spiked with both radioisotopes individually, the elimination of 60Co and 134Cs achieved maximum values of 99 and 86%, respectively, within 120 min. It can be concluded that the ligand effectively removed cobalt and cesium from wastewater, with higher adsorption for cobalt.
Environmental and mineralogical studies on the stream sediments of Baltim–El Burullus coastal plain, North Delta, Egypt A. M. Sallam, A. A. Faheim, Z. A. El-Elshafiey, M. M. Abdel Azeem, M. G. El Feky, et al. Scientific Reports, 2024 This work is mainly concerned with the effect of anthropogenic activities and natural radioactivity due to the presence of highly radioactive black sand spots, factory construction, and shipping, in addition to other activities like agriculture on human beings. Forty samples were collected along Baltim–El Burullus coastal plain to detect the effect of these problems and determine the suggested solutions. The black sand of the Baltim–El Burullus coastal plain exhibits a considerable amount of economically heavy minerals, their ratio relative to the bulk composition in the investigated samples ranges from 3.18 to 10.5% with an average of 5.45%. The most important of them are magnetite, ilmenite, rutile, leucoxene, garnet, zircon and monazite. The existence of some radioactive-bearing accessory mineral deposits like zircon and monazite led to measuring the naturally occurring radionuclides 226Ra, 232Th and 40K to evaluate the excess lifetime cancer risk (ELCR). The results showed that these concentrations are 19.1 ± 9.73, 14.7 ± 9.53 and 211 ± 71.34 Bq kg−1 were lower than the corresponding reported worldwide average of 35, 45, and 412 Bq kg−1 for each radionuclide (226Ra, 232Th, and 40 K). The gamma hazard indices such as absorbed dose rate (Dair), the annual effective dose (AED), and excess lifetime cancer risk (ELCR) factor were computed in the investigated sediments and all the results were found (Dair = 26.4 nGy h−1, AED = 0.03 mSv year−1, ELCR = 0.0001) to be lower than the values suggested by the United Nations Scientific Committee on the effect of Atomic Research (59 nGy h−1, 0.07 mSv year−1 and 0.0029 for Dair, AED and ELCR, respectively). The study suggests that the black sand is safe to use in various infrastructure applications at Baltim–El Burullus coastal plain. The levels of radioactivity are not high enough to pose a risk to human health.
Performance of new metal complexes for anionic and cationic dyes photodegradation: construction, spectroscopic studies, optical properties, and DFT calculations Aml M. Saleh, Zeinab Abd El–Wahab, Omyma A. M. Ali, Abeer A. Faheim, Aida A. Salman Research on Chemical Intermediates, 2023 Water pollution is referred to as the introduction of exotic species into an ecosystem, which poses serious difficulties for both the environment and human health. As a result, water treatment has garnered a lot of interest in recent studies, particularly for dyes removal. In an effort to synthesize new photocatalysts with the highest potential for removing pollutants, photocatalytic degradation of two types of dyes; aniline blue, and malachite green by newly synthesized Ag(I), Ni(II), and Co(II) complexes photocatalysts has been investigated here. Ag(I), Ni(II), and Co(II) ions were used to interact with the novel imine ligand, HL, which was produced by condensing 3-acetylcoumarin, and sulfadimidine, in order to make the desired complexes. Different spectroscopic methods were used to properly characterize and confirm the structures of all synthesized compounds. The ligand, HL act as anionic tetradentate through the imine group (C=N), lactone carbonyl group (C=O), sulfonamide group (SO2NH), and pyrimidine ring nitrogen. The suggested formula of the synthesized complexes were [Ag2(L)(NO3)(H2O)3], [Co2(L)Cl3(H2O)].2H2O, and [Ni2(L)Cl3(H2O)].2H2O with a tetrahedral structure, and nonelectrolyte nature. Through optical studies and XRD measurements, all investigated compounds have the semiconductor nature and nano sizes. TGA-DTG/DSC techniques were utilized to thermal behavior study as well as assess some thermodynamic and kinetic parameters for all degradation stages. The geometry of the proposed structure of all new synthesized compounds was optimized by density functional theory (DFT) calculations. The BET surface area and the porosity data align well with the excellent photocatalytic performance for [Co2(L)Cl3(H2O)].2H2O complex toward the dyes degradation.
Radiochemical technique as a tool for determination and characterisation of El Sela ore grade uranium deposits Sahar A. Okasha, Abeer A. Faheim, Mohamed H. E. Monged, Mahmoud R. Khattab, Neveen S Abed, et al. International Journal of Environmental Analytical Chemistry, 2023 The present study is an application of a radiochemical procedure for the determination of 238U, 235U and 234U as well as uranium isotopic ratios in El Sela ore grade samples that located at the Sou...
Sustainable Lightweight Concrete Made of Cement Kiln Dust and Liquefied Polystyrene Foam Improved with Other Waste Additives Abeer M. El-Sayed, Abeer A. Faheim, Aida A. Salman, Hosam M. Saleh Sustainability Switzerland, 2022 The main objective of this study is to mix two problematic wastes, cement kiln dust (CKD) and polystyrene waste liquified by gasoline, to produce a new lightweight cementitious material, as a green composite used in the construction industry. Various ratios of liquified polystyrene (LPS) were blended with CKD to achieve the optimum mixing ratio in the absence and presence of different additives. A significant improvement of mechanical properties (compressive strength of 2.57 MPa) and minimization of the porosity (51.3%) with reasonable water absorption (42.4%) has been detected in the mixing of 30% LPS with CKD due to filling the voids and gaps with liquified polymer. Portland cement, waste glass, and iron slag have been incorporated into CKD-30% LPS paste at different mass fractions of 0%, 5%, 10%, 15%, and 20%. However, a considerable value of compressive strength up to 2.7 MPa was reported in presence of 15% of any additive material with CKD-30% LPS matrix. This study recommends implementing a viable strategy to upcycle any of the examined wastes of the optimum ratios (15% waste glass or iron slag with 30% of LPS) together with another hazardous waste, namely cement kiln dust, to produce lightweight cementitious bricks in eco-friendly sustainable technology.
Synthesis and characterization of cobalt(II), cerium(III), and dioxouranium(VI) complexes of 2,3-dimethyl-1-phenyl-4-salicylidene-3-pyrazolin- 5-one. Mixed ligand complexes, pyrolytic products, and biological activities Chemical Papers, 2005
RECENT SCHOLAR PUBLICATIONS
Sulfaquinoxaline Functionalized Nickel and Cadmium Metal complexes: Photocatalytic Dye Degradation, Optical Properties, DFT Studies and Anticancer Cytotoxic Activity. AA Faheim, SE Hashem, AM Saleh, ZH Abd El-Wahab, MM Mostafa International Journal of Theoretical and Applied Research 4 (2), 916-934 , 2025 2025
Synthesis and characterization of cellulose microcrystals–chromium oxide nanocomposites: enhancing surface, thermal, and optical properties SA Abdelmoniem, AA Faheim, MT Al-Shemy, ZH Abd El-Wahab Egyptian Journal of Chemistry 68 (9), 749-765 , 2025 2025 Citations: 3
Structural Elucidation and Theoretical DFT Studies of Novel Schiff Base Metal Complexes Derived from 2-aminothiophenol RN Khalaf, AA Faheim, SS Ibrahim, ZA El-Shafiey, HM Saleh Green Energy and Environmental Technology , 2025 2025 Citations: 1
Removal of Radio and Stable Isotopes of Cobalt and Cesium from Contaminated Aqueous Solutions by Isatin-Derived Ligand RN Khalaf, SS Ibrahim, ZA El-Shafiey, AA Faheim, HM Saleh AppliedChem 5 (2), 8 , 2025 2025 Citations: 2
Evaluation of an isatin-derived ligand and its metal complexes as potential anticancer agents in breast adenocarcinoma cells RN Khalaf, AI Hassan, ZA El-Shafiey, AA Faheim, SS Ibrahim, HM Saleh Chemical Papers 79 (3), 1539-1560 , 2025 2025 Citations: 5
Recent development of metal-organic frameworks and their composites in electromagnetic wave absorption and shielding applications K Wei, Y Shi, X Tan, M Shalash, J Ren, AA Faheim, C Jia, R Huang, ... Advances in Colloid and Interface Science 332, 103271 , 2024 2024 Citations: 96
Environmental and mineralogical studies on the stream sediments of Baltim–El Burullus coastal plain, North Delta, Egypt AM Sallam, AA Faheim, ZA El-Elshafiey, MMA Azeem, MG El Feky, ... Scientific Reports 14 (1), 3776 , 2024 2024 Citations: 7
Optimization of the leaching process for uranium recovery and some associated valuable elements from low-grade uranium ore HA Radwan, AA Faheim, EM El-Sheikh, ZH Abd El-Wahab, MA Gado International Journal of Environmental Analytical Chemistry 103 (17), 5259-5281 , 2023 2023 Citations: 17
Performance of new metal complexes for anionic and cationic dyes photodegradation: construction, spectroscopic studies, optical properties, and DFT calculations: AM Saleh et al. AM Saleh, Z Abd El–Wahab, OAM Ali, AA Faheim, AA Salman Research on Chemical Intermediates 49 (8), 3287-3326 , 2023 2023 Citations: 16
Radiochemical technique as a tool for determination and characterisation of El Sela ore grade uranium deposits SA Okasha, AA Faheim, MHE Monged, MR Khattab, NS Abed, AA Salman International Journal of Environmental Analytical Chemistry 103 (4), 737-746 , 2023 2023 Citations: 20
Sustainable lightweight concrete made of cement kiln dust and liquefied polystyrene foam improved with other waste additives AM El-Sayed, AA Faheim, AA Salman, HM Saleh Sustainability 14 (22), 15313 , 2022 2022 Citations: 25
Highly sensitive strain sensors with wide operation range from strong MXene-composited polyvinyl alcohol/sodium carboxymethylcellulose double network hydrogel D Kong, ZM El-Bahy, H Algadi, T Li, SM El-Bahy, MA Nassan, J Li, ... Advanced Composites and Hybrid Materials 5 (3), 1976-1987 , 2022 2022 Citations: 232
Natural Radionuclide characterization on Baltim-El Burullus coastal sediments and their risk assessments AM Sallam, AA Faheim, ZA El-Elshafiey, S Amamer, MG El Feky Journal of Physics: Conference Series 2305 (1), 012005 , 2022 2022 Citations: 2
Iron/silicon carbide composites with tunable high-frequency magnetic and dielectric properties for potential electromagnetic wave absorption T Gao, H Rong, KH Mahmoud, J Ruan, SM El-Bahy, AA Faheim, Y Li, ... Advanced Composites and Hybrid Materials 5 (2), 1158-1167 , 2022 2022 Citations: 81
Partial Replacement of Cement by Solid Wastes as New Materials for Green Sustainable Construction Applications HM Saleh, AAFAA Salman, AM El-Sayed Journal of Building Material Science| Volume 3 (02) , 2021 2021
Synthesis, structural characterization, and catalytic reduction study of Co (II) complex towards toxic organic compounds; nitrophenol, and Nitroaniline A Saleh, A Faheim, O Mostafa, Z Abdelwahab, A Salman Al-Azhar Bulletin of Science 2021 (12), 11-21 , 2021 2021 Citations: 3
Influence of aggressive environmental impacts on clean, lightweight bricks made from cement kiln dust and grated polystyrene HM Saleh, AA Salman, AA Faheim, AM El-Sayed Case Studies in Construction Materials 15, e00759 , 2021 2021 Citations: 36
Study on Synthesis, Characterization and Applications of Ternary Metal Complexes AA Faheim Challenges and Advances in Chemical Science Vol. 4, 62-82 , 2021 2021
Recovery of Some Valuable Elements from Highly Ferruginous Shale, Um Bogma Formation, Wadi Um Hamed, South Western Sinai, Egypt. HA Radwan, AA Faheim, EM El-Sheikh, ZH Abd El-Wahab, MA Gado The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) 109 (1), 54-71 , 2021 2021 Citations: 1
Introductory chapter: Cement industry AM El-Sayed, AA Faheim, AA Salman, HM Saleh Cement Industry-Optimization, Characterization and Sustainable Application , 2021 2021 Citations: 5
MOST CITED SCHOLAR PUBLICATIONS
Co (II), Ce (III) and UO2 (VI) bis-salicylatothiosemicarbazide complexes: binary and ternary complexes, thermal studies and antimicrobial activity ZH Abd El-Wahab, MM Mashaly, AA Salman, BA El-Shetary, AA Faheim Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 60 (12 … , 2004 2004 Citations: 280
Highly sensitive strain sensors with wide operation range from strong MXene-composited polyvinyl alcohol/sodium carboxymethylcellulose double network hydrogel D Kong, ZM El-Bahy, H Algadi, T Li, SM El-Bahy, MA Nassan, J Li, ... Advanced Composites and Hybrid Materials 5 (3), 1976-1987 , 2022 2022 Citations: 232
Recent development of metal-organic frameworks and their composites in electromagnetic wave absorption and shielding applications K Wei, Y Shi, X Tan, M Shalash, J Ren, AA Faheim, C Jia, R Huang, ... Advances in Colloid and Interface Science 332, 103271 , 2024 2024 Citations: 96
Preparation, Spectral Characterization and Antimicrobial Activities of Schiff Base Complexes Derived from 4‐Aminoantipyrine. Mixed Ligand Complexes with 2‐Aminopyridine, 8 … MM Mashaly, ZH Abd‐Elwahab, AA Faheim Journal of the Chinese Chemical Society 51 (5A), 901-915 , 2004 2004 Citations: 85
Iron/silicon carbide composites with tunable high-frequency magnetic and dielectric properties for potential electromagnetic wave absorption T Gao, H Rong, KH Mahmoud, J Ruan, SM El-Bahy, AA Faheim, Y Li, ... Advanced Composites and Hybrid Materials 5 (2), 1158-1167 , 2022 2022 Citations: 81
Sustainable composite of improved lightweight concrete from cement kiln dust with grated poly (styrene) HM Saleh, AA Salman, AA Faheim, AM El-Sayed Journal of Cleaner Production 277, 123491 , 2020 2020 Citations: 64
Synthesis and characterization of Cobalt (II), Cerium (III) and dioxouranium (VI) complexes of 2, 3-dimethyl-1-phenyl-4-salicylidene-3-pyrazoline-5-one mixed ligand complexes … ZH Abd El-Wahab, MM Mashaly, AA Faheim Chem Pap 59, 25-36 , 2005 2005 Citations: 51
Mixed‐Ligand Complexes of a Schiff Base, 8‐Hydroxyquinoline and Oxalic Acid with Cu (II), Ni (II), Zn (II), and Fe (III) Ions: Pyrolytic Products and Biological Activities MM Mashaly, ZH Abd‐Elwahab, AA Faheim Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 34 (2 … , 2004 2004 Citations: 44
Influence of aggressive environmental impacts on clean, lightweight bricks made from cement kiln dust and grated polystyrene HM Saleh, AA Salman, AA Faheim, AM El-Sayed Case Studies in Construction Materials 15, e00759 , 2021 2021 Citations: 36
Synthesis and characterization of binary and ternary complexes of Co (II), Ni (II), Cu (II) and Zn (II) ions based on 4-aminotoluene-3-sulfonic acid AA Faheim, SN Abdou, ZH Abd El-Wahab Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 105, 109-124 , 2013 2013 Citations: 29
Sustainable lightweight concrete made of cement kiln dust and liquefied polystyrene foam improved with other waste additives AM El-Sayed, AA Faheim, AA Salman, HM Saleh Sustainability 14 (22), 15313 , 2022 2022 Citations: 25
Cu (II), Zn (II), and Ce (III) metal complexes as antimicrobial pigments for surface coating and flexographic ink MM Elsawy, AA Faheim, SS Salem, ME Owda, ZH Abd El‐Wahab, ... Applied Organometallic Chemistry 35 (5), e6196 , 2021 2021 Citations: 25
Radiochemical technique as a tool for determination and characterisation of El Sela ore grade uranium deposits SA Okasha, AA Faheim, MHE Monged, MR Khattab, NS Abed, AA Salman International Journal of Environmental Analytical Chemistry 103 (4), 737-746 , 2023 2023 Citations: 20
Novel antimicrobial paint based on binary and ternary dioxouranium (VI) complexes for surface coating applications AA Faheim, MM Elsawy, SS Salem, H Abd El-Wahab Progress in Organic Coatings 151, 106027 , 2021 2021 Citations: 18
Optimization of the leaching process for uranium recovery and some associated valuable elements from low-grade uranium ore HA Radwan, AA Faheim, EM El-Sheikh, ZH Abd El-Wahab, MA Gado International Journal of Environmental Analytical Chemistry 103 (17), 5259-5281 , 2023 2023 Citations: 17
Performance of new metal complexes for anionic and cationic dyes photodegradation: construction, spectroscopic studies, optical properties, and DFT calculations: AM Saleh et al. AM Saleh, Z Abd El–Wahab, OAM Ali, AA Faheim, AA Salman Research on Chemical Intermediates 49 (8), 3287-3326 , 2023 2023 Citations: 16
Novel flame retardant paint based on Co (II) and Ni (II) metal complexes as new additives for surface coating applications AA Younis, AA Faheim, MM Elsawy, HA El‐Wahab Applied Organometallic Chemistry 35 (1), e6070 , 2021 2021 Citations: 16
Self-assembly and antitumor activity of an organotin coordination polymer containing a helical structure based on copper cyanide and phenanthroline ligand SEDH Etaiw, SN Abdou, AA Faheim Journal of Coordination Chemistry 68 (3), 491-506 , 2015 2015 Citations: 15
Polymer and polymer waste composites in nuclear and industrial applications H Saleh, A Salman, A Faheim, A El-Sayed J. Nucl. Energy Sci. Power Gener. Technol 9, 1000199 , 2020 2020 Citations: 14
Synthesis, characterization, biological activity and molecular modeling studies of Cu (II) complex with N, O-chelating Schiff’s base ligand incorporating Azo and sulfonamide … AA Faheim, A Alaghaz Current Synthetic and Systems Biology 2 (113), 1-7 , 2014 2014 Citations: 9