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해사 티탄철광으로부터 TiO2 합성 및 광촉매 활성Synthesis of TiO2 from Beach Sand Ilmenite and Its Photocatalytic Activity
- Other Titles
- Synthesis of TiO2 from Beach Sand Ilmenite and Its Photocatalytic Activity
- Issue Date
- Jun-2010
- Publisher
- 한국자원공학회
- Keywords
- Beach sand; Ilmenite; TiO2; Photocatalytic catalyst; 해사; 티탄철광; TiO2; 광촉매
- Citation
- 한국자원공학회지, v.47, no.3, pp 359 - 368
- Pages
- 10
- Indexed
- KCI
- Journal Title
- 한국자원공학회지
- Volume
- 47
- Number
- 3
- Start Page
- 359
- End Page
- 368
- ISSN
- 2288-0291
2288-2790
- Abstract
- 해사 티탄철광을 이용하여 rutile상의 TiO2를 합성하였다. TiO2의 합성은 티탄철광의 메카노케미컬처리와 HCl 용액 상에서의 추출 및 가수분해 반응으로 이루어졌다. 합성물의 미세구조는 SEM과 TEM을 통해관찰하였고, 합성물의 다양한 열처리 온도에 따른 물리･화학적 특성을 XRD, BET, EDS, TGA, FT-IR로 분석하였다. 또한 합성물과 상용 TiO2의 광촉매 활성을 UV-A 광원 하에서 시간에 따른 메틸렌블루 분해능을 통해평가하였다. 이러한 결과로부터 합성물의 최적 열처리 온도는 700℃로 판단되었다.
Rutile TiO2 was synthesized by using beach sand ilmenite. Synthesis of TiO2 was accomplished via mechano-chemical treatment of ilmenite and subsquent simultaneous leaching and hydrolysis in dilute solutions of hydrochloric acid. The microstructure of synthetic product was investigated by SEM, TEM and physicochemical characteristics of synthetic products for different heat treatment temperature were analyzed by XRD, BET, EDS,TGA, FT-IR. And the photocatalytic activity of synthetic product and commercial TiO2 was evaluated by methylene blue decomposition according to the irradiation time under UV-A light source. As a result, the optimum heat treatment temperature of synthetic product was 700℃.
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Collections - 서울 공과대학 > 서울 자원환경공학과 > 1. Journal Articles
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