Electrochemical synthesis of nanosized hydroxyapatite by pulsed direct current method

Adrian Nur, Alifah Rahmawati, Noor Izzati Ilmi, Samsudin Affandi, Arief Widjaja, Heru Setyawan*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Citations (Scopus)

Abstract

Synthesis of nanosized of hydroxyapatite (HA) by electrochemical pulsed direct current (PDC) method has been studied. The aim of this work is to study the influence of various PDC parameters (pH initial, electrode distance, duty cycle, frequency, and amplitude) on particle surface area of HA powders. The electrochemical synthesis was prepared in solution Ca2+/EDTA 4-/PO43+ at concentration 0.25/0.25/0.15 M for 24 h. The electrochemical cell was consisted of two carbon rectangular electrodes connected to a function generator to produce PDC. There were two treatments for particles after electrosynthesized, namely without aging and aged for 2 days at 40 °C. For both cases, the particles were filtered and washed by demineralized water to eliminate the impurities and unreacted reactants. Then, the particles were dried at 100 °C for 2 days. The dried particles were characterized by X-ray diffraction, surface area analyzer, scanning electron microscopy (SEM), Fourier transform infrared spectra and thermogravimetric and differential thermal analysis. HA particles can be produced when the initial pH > 6. The aging process has significant effect on the produced HA particles. SEM images of HA particles showed that the powders consisted of agglomerates composed of fine crystallites and have morphology plate-like and sphere. The surface area of HA particles is in the range of 25 - 91 m2/g. The largest particle surface area of HA was produced at 4 cm electrode distance, 80% cycle duty, frequency 0.1 Hz, amplitude 9 V and with aging process.

Original languageEnglish
Title of host publication5th Nanoscience and Nanotechnology Symposium, NNS 2013
PublisherAmerican Institute of Physics Inc.
Pages86-91
Number of pages6
ISBN (Print)9780735412187
DOIs
Publication statusPublished - 2014
Event5th Nanoscience and Nanotechnology Symposium, NNS 2013 - Surabaya, Indonesia
Duration: 23 Oct 201325 Oct 2013

Publication series

NameAIP Conference Proceedings
Volume1586
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference5th Nanoscience and Nanotechnology Symposium, NNS 2013
Country/TerritoryIndonesia
CitySurabaya
Period23/10/1325/10/13

Keywords

  • Electrochemical
  • Hydroxyapatite
  • Nanosized
  • Pulsed direct current
  • Synthesis

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