May 28, 2023
Hamed Salimi-Kenari

Hamed Salimi-Kenari

Degree: Assistant professor
Education: Ph.D in Polymer Engineering
Phone: 01135305105
Faculty: Faculty of Engineering and Technology


Title Fabrication of Nanoporous Functionalized Hydroxyapatite as High Performance Adsorbent for Acid Blue 25 Dye Removal
Type Article
Hydroxyapatit Dye Removal Adsorption Nanoporous
Journal International Journal of Engineering Transactions A: Basics
DOI doi: 10.5829/ije.2019.32.02b.02
Researchers Fatemeh DarvishAlipour (First researcher) , hamidreza Ghafouri Taleghani (Second researcher) , Mohsen Ghorbani (Third researcher) , Hamed Salimi-Kenari (Fourth researcher)


In this study, nanoporous hydroxyapatite was synthesized and functionalized via tetraethylenepentamine in order to obtain a novel adsorbent for efficient removal of Acid Blue 25 dye from aqueous solution. Functionalized hydroxyapatite was characterized by Fourier transform infrared spectroscopy (FTIR), X-Ray Diffraction (XRD), Scanning Electron Microscopy (SEM), Energy Dispersive Spectroscopy (EDS), and N2 adsorption-desorption. Batch adsorption studies were performed to investigate the effect of various parameters such as pH, initial dye concentration, adsorbent dosage, contact time and temperature. The results illustrated that dye removal percentage was reduced with incrementing pH of the solution and dye concentration. Maximum removal of Acid Blue 25 in the solution having an initial dye concentration of 40 mg/L using 10 mg of adsorbent at 25 °C was 88%. Experimental kinetic data obeyed the pseudo second order model was appointed in 180 min. The Freundlich isotherm model also represented a suitable fit with adsorption data. The thermodynamic study was indicated that the adsorption process was spontaneous and exothermic. Results confirmed that FHAp adsorbent possesses the potential to be used as a suitable candidate for Acid Blue 25 Dye removal from aqueous solutions.