"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

Conversion mechanism of a bioactive Si-Ca-P system wet gel in aqueous K2HPO4 solution

ZHIQIANG FENG1, JIAZHE GUO1, YADONG LI1,* , YANLIN HUANG1

Affiliation

  1. College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

Abstract

A bioactive Si-Ca-P system (designated 58S) wet gel was prepared via a sol-gel method. The wet gel was reacted continuously in 0.25M K2HPO4 solution with a starting pH value of 9.0 at 37 °C for different time. The structural and compositional changes resulting from the conversion reaction were characterized using X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy and inductive coupled plasma spectroscopy. The results indicated that the induction period for the CDHA nucleation on the surface of the 58S bioactive wet gel was about 3 days. The conversion mechanism of the products was also discussed..

Keywords

Bioactive wet gel, Conversion mechanism, Ca-P precipitations, Characterization.

Citation

ZHIQIANG FENG, JIAZHE GUO, YADONG LI, YANLIN HUANG, Conversion mechanism of a bioactive Si-Ca-P system wet gel in aqueous K2HPO4 solution, Optoelectronics and Advanced Materials - Rapid Communications, 5, 1, January 2011, pp.80-84 (2011).

Submitted at: Jan. 6, 2011

Accepted at: Jan. 26, 2011