Hadeel Galal El-Shorbagy, Ph.D. in organic chemistry, Menoufia University, Faculty of Science, is a chemist and the manager of the organic central lab of Al-Menoufia Water and Wastewater Company in Menoufia, Egypt. El-Shorbagy has over 15 years of experience in water treatment. El-Shorbagy has published numerous articles in international journals and conferences. She has reviewed numerous research publications for international journals in the field of environmental science. It is worth mentioning that El-Shorbagy received the 2013 Misr El-Kheir Award for Best Publication in Egypt and Amr Seoudy Water Treatment Award 2024.
EDUCATION
Ph.D. in Environmental Organic Chemistry.
RESEARCH, TEACHING, or OTHER INTERESTS
Organic Chemistry, Environmental Chemistry, Chemical Engineering, Materials Science
Eco-friendly Chitosan Condensation Adduct Resins for Removal of Toxic Silver Ions from Aqueous Medium Hadeel G. El-Shorbagy, Salah M. El-Kousy, Khalid Z. Elwakeel, M.A. Abd El-Ghaffar Journal of Industrial and Engineering Chemistry, 2021 A new economic method of modifying chitosan based on direct condensation reaction between chitosan and phenolic acids “Gallic or Caffeic acids” to produce new condensation adducts RI and RII. The new adducts structure and morphology were confirmed by physical and chemical tools such as FTIR, TGA, SEM, elemental analysis, water regain, dissociation in acidic medium, and point of zero charge. The new adducts were evaluated as silver ions adsorbents. The new adducts showed efficient removal of toxic silver ions from the aqueous medium with removal efficiency reached 100% and 92.66% for RI and RII respectively. Factors affecting on adsorption process as well as Kinetics, equilibrium, and thermal properties of adsorption were studied using conventional equations. Both adducts showed good re-use ability lasted for three cycles.
Chitosan/montmorillonite composites for fast removal of methylene blue from aqueous solutions Salah M. El-Kousy, Hadeel G. El-Shorbagy, M.A. Abd El-Ghaffar Materials Chemistry and Physics, 2020 New modified chitosan nano-montmorillonite composites were synthesized for efficient removal of Methylene Blue (MB) pollutant. The composites' structure and morphology were confirmed by 1H NMR, FTIR, TGA, SEM, XRD, XPS, water regain, stability in acidic medium, and pHpzc. Factors influencing dye adsorption; nano-montmorillonite ratio, initial dye concentration, composite dose, pH, temperature, contact time, and desorption were investigated. The new modified composites showed very fast adsorption performance and equilibrium occurred after 8 min with adsorption capacity 248.9, 276.03, 204.39, and 180 mg/g for R0, RI, RII, and RIII respectively. MB adsorption is a multilayer process preceded via electrostatic attraction in alkaline medium and/or cation exchange in acidic medium. Adsorption data is well-fitting to Freundlich isotherm and pseudo-second-order kinetics. The composites prepared showed high desorption ability amounting to 77.13, 84.28, 88.47, and 97% for R0, RI, RII, and RIII respectively by using 0.5 M HCl eluent.
Comparison between the removal of Reactive Black 5 from aqueous solutions by 3-amino-1,2,4 triazole,5-thiol and melamine grafted chitosan prepared through four different routes Khalid Z. Elwakeel, S. El-Kousy, Hadeel G. El-Shorbagy, M.A. Abd El-Ghaffar Journal of Environmental Chemical Engineering, 2016 Chitosan was modified through four different modification routes. First, epichlorohydrine cross-linked Chitosan was grafted with 3-Amino-1,2,4 triazole,5-thiol and melamine to produce RI and RII, respectively. Second, glutaraldehyde cross-linked chitosan was chemically modified using ammonium hydroxide then grafted with 3-Amino-1,2,4 triazole,5-thiol and melamine to produce RIII and RIV, respectively. The prepared polymers were characterized via FTIR, TGA, elemental analysis, water regain and surface area. RIII and RIV shows higher thermal stability, bigger surface area, and lower water regain, than RI and RII. Removal of Reactive Black 5 (RB5) anions from their aqueous solutions were studied using the modified chitosan adsorbents under various parameters such as pH, agitation time, and temperature. The maximum adsorption capacities are 0.492, 0.330, 0.622 and 0.698 mmol g −1 for RI, RII, RIII, and RIV, respectively, at pH 3 and 25 °C. The nature of interaction of RB5 with the adsorbents was identified. Uptake kinetics and adsorption isotherms were modeled using conventional and simple equations: best results were respectively obtained with the pseudo-second order rate equation and the Langmuir equation. The thermodynamic parameters have been calculated: the adsorption is endothermic, spontaneous and contributes to increase the entropy (randomness) of the system. RI and RII gives higher desorption yield than RIII and RIV, this probably due to the presence of the quaternary ammonium moiety in the last two sorbents.
Enhanced Remediation of Reactive Black 5 from Aqueous Media Using New Chitosan Ion Exchangers Khalid Z. Elwakeel, M. A. Abd El-Ghaffar, Salah M. El-Kousy, Hadeel G. El-Shorbagy Journal of Dispersion Science and Technology, 2013 Chitosan was cross-linked using epichlorohydrine to form chitosan gel. The resins obtained were chemically modified through the reaction with to 1,1,1,3,3,3 hexafloro,2-bis (3-amino,2-hydroxyphenyl) propane to produce resin (RI), 3-amino-1,2,4 triazole,5-thiol to produce resin (RII), and melamine to produce resin (RIII). The uptake of Reactive Black 5 (RB5) from aqueous media by the obtained resins was studied using batch method. Various parameters such as pH, agitation time, RB5 concentration and temperature were studied. The resins showed high affinity for the adsorption of RB5 where uptake values of 0.63, 0.45, and 0.33 mmol/g were reported for resins RI, RII, and RIII, respectively at 25°C. Both kinetics and thermodynamic parameters of the process were estimated. These data indicated an endothermic spontaneous adsorption process and kinetically followed the pseudo-second order model, Fickian diffusion low and Elovich equation. Desorption of RB5 from the surface of the prepared resins was efficiently done using sodium hydroxide.
Synthesis of new ammonium chitosan derivatives and their application for dye removal from aqueous media Khalid Z. Elwakeel, M.A. Abd El-Ghaffar, Salah M. El-kousy, Hadeel G. El-Shorbagy Chemical Engineering Journal, 2012 Chitosan/gluteraldehyde resin was chemically modified using ammonium hydroxide to produce (RI) resin, which was additionally semi cross-linked with epichlorohydrine through hydroxyl group of chitosan. The obtained resin was modified with 3-Amino-1,2,4 triazole,5-thiol to produce resin (RII)/or melamine to produce resin (RIII). The uptake of modified chitosan resins toward Brilliant Blue R250 (BBR250) from aqueous media was studied using batch method. Various parameters such as pH, agitation time and temperature had been studied. The resins showed high affinity for the adsorption of BBR250 from aqueous media where uptake values of 0.97, 0.79 and 2.505 mmol/g were reported for resins RI, RII and RIII at 25 °C, respectively. Both kinetics and thermodynamic parameters of the process were estimated. These data indicated an endothermic spontaneous adsorption process and kinetically followed the pseudo-second order model, Fickian diffusion low and Elovich model. Desorption of BBR250 from the prepared resins was efficiently done using sodium hydroxide.
RECENT SCHOLAR PUBLICATIONS
Efficient removal of Methylene blue dye from aqueous medium utilizing eco-friendly chitosan adsorbents HG El-Shorbagy Journal of Dispersion Science and Technology 46 (13), 2141-2152 , 2025 2025 Citations: 2
Thermally activated sludge utilization for removal of nickel pollution from aqueous medium HG El-Shorbagy, SE El-Mosalamy, GO El-Sayed, TS Metwaly Thermal Advances 3, 100036 , 2025 2025
Utilization of thermally treated sludge for the removal of hexavalent chromium from drainage wastewater: A laboratory and field study TS Metwaly, SI Ali, MH Moustafa, HM Shata, SE El-Mosalamy, ... International Journal of Environmental Science and Technology 22 (7), 5211-5226 , 2025 2025 Citations: 4
Eco-friendly chitosan condensation adduct resins for removal of toxic silver ions from aqueous medium HG El-Shorbagy, SM El-Kousy, KZ Elwakeel, MA Abd El-Ghaffar Journal of Industrial and Engineering Chemistry 100, 410-421 , 2021 2021 Citations: 43
Chitosan/montmorillonite composites for fast removal of methylene blue from aqueous solutions SM El-Kousy, HG El-Shorbagy, MA Abd El-Ghaffar Materials chemistry and physics 254, 123236 , 2020 2020 Citations: 123
Comparison between the removal of Reactive Black 5 from aqueous solutions by 3-amino-1, 2, 4 triazole, 5-thiol and melamine grafted chitosan prepared through four different routes KZ Elwakeel, S El-Kousy, HG El-Shorbagy, MA Abd El-Ghaffar Journal of environmental chemical engineering 4 (1), 733-745 , 2016 2016 Citations: 90
Enhanced remediation of Reactive Black 5 from aqueous media using new chitosan ion exchangers KZ Elwakeel, MA Abd El-Ghaffar, SM El-Kousy, HG El-Shorbagy Journal of dispersion science and technology 34 (7), 1008-1019 , 2013 2013 Citations: 40
Synthesis of new ammonium chitosan derivatives and their application for dye removal from aqueous media KZ Elwakeel, MA Abd El-Ghaffar, SM El-kousy, HG El-Shorbagy Chemical Engineering Journal 203, 458-468 , 2012 2012 Citations: 115
MOST CITED SCHOLAR PUBLICATIONS
Chitosan/montmorillonite composites for fast removal of methylene blue from aqueous solutions SM El-Kousy, HG El-Shorbagy, MA Abd El-Ghaffar Materials chemistry and physics 254, 123236 , 2020 2020 Citations: 123
Synthesis of new ammonium chitosan derivatives and their application for dye removal from aqueous media KZ Elwakeel, MA Abd El-Ghaffar, SM El-kousy, HG El-Shorbagy Chemical Engineering Journal 203, 458-468 , 2012 2012 Citations: 115
Comparison between the removal of Reactive Black 5 from aqueous solutions by 3-amino-1, 2, 4 triazole, 5-thiol and melamine grafted chitosan prepared through four different routes KZ Elwakeel, S El-Kousy, HG El-Shorbagy, MA Abd El-Ghaffar Journal of environmental chemical engineering 4 (1), 733-745 , 2016 2016 Citations: 90
Eco-friendly chitosan condensation adduct resins for removal of toxic silver ions from aqueous medium HG El-Shorbagy, SM El-Kousy, KZ Elwakeel, MA Abd El-Ghaffar Journal of Industrial and Engineering Chemistry 100, 410-421 , 2021 2021 Citations: 43
Enhanced remediation of Reactive Black 5 from aqueous media using new chitosan ion exchangers KZ Elwakeel, MA Abd El-Ghaffar, SM El-Kousy, HG El-Shorbagy Journal of dispersion science and technology 34 (7), 1008-1019 , 2013 2013 Citations: 40
Utilization of thermally treated sludge for the removal of hexavalent chromium from drainage wastewater: A laboratory and field study TS Metwaly, SI Ali, MH Moustafa, HM Shata, SE El-Mosalamy, ... International Journal of Environmental Science and Technology 22 (7), 5211-5226 , 2025 2025 Citations: 4
Efficient removal of Methylene blue dye from aqueous medium utilizing eco-friendly chitosan adsorbents HG El-Shorbagy Journal of Dispersion Science and Technology 46 (13), 2141-2152 , 2025 2025 Citations: 2
Thermally activated sludge utilization for removal of nickel pollution from aqueous medium HG El-Shorbagy, SE El-Mosalamy, GO El-Sayed, TS Metwaly Thermal Advances 3, 100036 , 2025 2025