Pb2+ and Cd2+ removal from aqueous solutions onto calcium-phosphate hydroxyl surface: kinetics, isotherms and thermodynamic investigations

Pb2+ and Cd2+ removal from aqueous solutions onto calcium-phosphate hydroxyl surface: kinetics, isotherms and thermodynamic investigations

This study evaluates the adsorption efficiency of calcium-phosphate hydroxyl (CPH) for removing Pb2+ and Cd2+ from water. Characterisation via XRD, FT-IR, TEM and BET confirmed a mesoporous structure (2.15 nm pore size, 44.33 m2/g surface area) and functional groups essential for adsorption. Optimal...

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Bibliographic Details
Main Authors: Ibrahim Arogundade, Mohamed Hefnawy, Edwin Andrew Ofudje, Ali El Gamal, Talha Bin Emran
Format: Article
Language:English
Published: Taylor & Francis Group 2025-12-01
Series:Journal of Taibah University for Science
Subjects:
Adsorbent
adsorption
calcium-phosphate hydroxyl
exothermic
wastewaters
Online Access:https://www.tandfonline.com/doi/10.1080/16583655.2025.2504745
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