졸-겔법으로 제조된 ｘTiO2-ｙSiO2 분말에 의한 유기물의 광분해

• 영문명: Photocatalytic Degradation of Organic Compounds over ｘTiO2-ｙSiO2 Powders Prepared by Sol-Gel Method
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 이봉철(Bong Cheol Lee) 양천회(Chun Hoe Yang)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제25권 제2호, 130~136쪽, 전체 7쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2008.06.30

영문 초록

ｘTiO2-ｙSiO2 system photocatalysts were developed by sol-gel method based on the change of production parameters, and their structure of crystallization and the specific surface area were measured. Considering the efficiency of the ethanol and phenol degradation using the catalyst, the conclusions were obtained as follows: By means of X-ray analysis of ｘTiO2-ｙSiO2 powder that is obtained from Titanium and Silicon alkoxide by sol-gel process, it is shown that crystal structure of anatase type is a dominating structure and, on the other hand, the structure of rutile also partly exists. The increase of SiO2 contents causes the decrease of the degree of crystallization of the gel, whereas the specific surface area preferentially increases. It is shown that more than 90% of ethanol and phenol are degraded when reaction time is about three and an hours, and the maximum degradation rate of ethanol and phenol is shown in 60TiO2-40SiO2 catalyst.

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참고문헌

키워드

titanium alkoxide sol-gel process photocatalysts surface area anatase type