용액의 산도 및 용매의 종류에 따른 수산화인회석의 형태 변화 연구

김영용; 권기영; Youngyong Kim; Ki-Young Kwon

Applied Chemistry for Engineering, Vol.27, No.5, 543-545, October, 2016

DOI10.14478/ace.2016.1057 Export Citation

용액의 산도 및 용매의 종류에 따른 수산화인회석의 형태 변화 연구

Dependence of the Morphology of Hydroxyapatite on pH and Solvent Species

김영용, 권기영^†

경상대학교 화학과

Youngyong Kim, and Ki-Young Kwon^†

Department of Chemistry and RINS, Gyeongsang National University, Jinju 52828 South Korea

E-mail:

초록

본 연구에서는 용매열합성법을 이용하여 용액의 서로 다른 pH와 용매 조건에서 4종의 수산화인회석을 합성하였다. 합성된 샘플의 결정성과 형태를 X-선 회절 분석과, 투과형전자현미경을 통하여 분석하였다. 4종의 수산화인회석은 pH와 용매 조건에 관계없이 거의 유사한 형태의 XRD 패턴을 보여 주었다. 그러나 형태는 순수한 물을 용매를 사용하였을 경우 염기 조건에서 합성한 수산화인회석이 [001] 방향으로 결정이 성장한 형태를 보였으며, 또한 순수한 물에 메탄올과 에탄올이 첨가한 조건에서 합성한 수산화인회석은 [001] 방향으로 더욱더 결정이 성장한 형태를 보였다.

Four different hydroxyapatites (HAP) were prepared by a solvothermal method under different pHs and solvent species. The synthesized hydroxyapatites were analyzed by X-ray diffraction (XRD) and transmission electron microscopy (TEM). Four HAPs exhibited similar XRD patterns regardless of synthetic conditions. However, the morphology of hydroxyapatites was dependent of pH and solvent species under synthetic condition. The HAP prepared in pH 12 showed an elongated shape along the [001] direction compared to that prepared in pH 8. Also, the morphology of the HAPs synthesized in the presence of methanol and ethanol exhibited the more elongated hexagonal rod shape along the [001] direction with the high aspect ratio.

Keywords:hydroxyapatite;morphology;solvothermal method

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