Open AccessSintesis hidroksiapatit berukuran nano dengan metode elektrokimia dibantu EDTA
Author(s) -
Adrian Nur,
Desi Liah Martasari,
Desy Nurwijayanti,
Samsudin Affandi,
Arief Widjaja,
Heru Setyawan
Publication year - 2018
Publication title -
jurnal teknik kimia indonesia
Language(s) - English
Resource type - Journals
eISSN - 2686-4991
pISSN - 1693-9433
DOI - 10.5614/jtki.2013.12.1.4
Subject(s) - materials science , electrochemistry , electrolysis , scanning electron microscope , nuclear chemistry , chemical engineering , current density , electrode , analytical chemistry (journal) , electrolyte , chemistry , composite material , chromatography , engineering , physics , quantum mechanics
EDTA-assisted synthesis of nanosized hydroxyapatite by electrochemical method.Synthesis of nanosized hydroxyapatite by electrochemical method has been studied. The aim of this work is to study the effects of variuos parameters on hydroxyapatite particles. The electrochemical synthesis was prepared in solution Ca2+/EDTA/PO43 at concentration 0.25/0.25/0.15 M. The solution was electrolized by using constant direct current at certain current density. There were two treatments for particles after electrosynthesized, namely without aging or aged for 3 days at 40oC. For both cases, the particles were filtered and washed by demineralized water to eliminate the impurities and unreacted reactans. Then, the particles were dryed at 40oC for 2 days. The dryed particles were characterized by X-Ray diffraction, surface area analyzer, scanning electron microscopy, Fourier transform infrared spectra and thermogravitimetric and differential thermal analysis. The results showed that nanosized hydroxyapatite were produced by electrochemical method. The produced particles were composed of needle-like or plate-like morphologies with equivalent diameter 19-143 nm. The produced particles diameters were inversely proportional to current density, duration of electroysis and EDTA concentration, and proportional to the distance between two electrodes and temperature. The product calcium phosphates types depended on the final pH of electrolysis process and aging treatment. It would tend to hydroxyapatite if pH>8 and brushite if pH 8 cenderung membentuk HA, sedangkan pH<8 cenderung membentuk fasa brushit.Kata kunci:hidroksiapatit, nanopartikel, elektrokimia, sintesis, karakterisasi