| 천연고분자 매트릭스를 사용한 산화티탄 나노입자의 합성 |
| 김수종, 한정화, 심재호 |
| 한라대학교 공과대학 신소재화학공학과 |
| Preparation of Nano-sized Titanium Oxide Powder Using Natural Polymer Matrix |
| Soo-Jong Kim, Cheong-Hwa Han, Jae-Ho Shim |
| Department of Advanced Materials & Chemical Engineering, Halla University |
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| ABSTRACT |
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Nano-sized titanium oxide powders were synthesized by a polymer matrix technique using pulp and Titanium tetraisopropoxide (TTIP) as starting materials. The synthesized powders were characterized by XRD and FE-SEM. The particle size of the powders was controlled by preparation conditions, such as heat treatment temperature and time. After investigating various drying and heat treatment conditions, 50-100 nm sized homogeneous titanium oxide particles were obtained by treating at $600^{circ}C$ for 1 h. The crystallization and rapid growth of particles was accelerated by increasing heat treatment temperature and time. Anatase phase generated below $600^{circ}C$ transformed to the rutile phase with increasing heat treatment temperature. Moreover, above $800^{circ}C$, heat treatment time had a very large influence on particle growth, and changing the heating condition also had a large influence on crystal growth. |
| Key words:
$TiO_2$, Nanoparticle, Polymer matrix technique |
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