산소 결함형 TiO2 분말의 가시광에 대한 광촉매 활성

• 영문명: Photocatalytic Activity of TiO2 Powder with an Oxygen Deficiency in the Visible-Light Region
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 양천회(Yang ChunHoe)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제24권 제1호, 1~9쪽, 전체 9쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2007.03.31

영문 초록

It prepared the TiO2 powder which has photo-catalytic activity in the visible-light by the wet process with titanium oxysulfate. The titanium dioxide(TiO2) by the wet process creates a new absorption band in the visible light region, and is expected to create photocatalytic activity in this region. Anatase TiO2 powder which has photocatalytic activity in the visible light region, is treated using microwave and radio-frequency(RF) plasma. But, the TiO2 powder for the visible light region, which also can be easily produced by wet process. The wet process TiO2 absorbed visible light between 400nm and 600nm, and showed a high activity in this region, as measured by the oxidation removal of aceton from the gas phase. The AH-380 sample appears the yellow color to be strong, the catalytic activity in the visible ray was excellent in comparison with the plasma-treated TiO2. The AH-380 TiO2 powder, which can be easily produced on a large scale, is expected to have higher efficiency in utilizing solar energy than the plasma-treated TiO2 powder.

키워드

titanium oxysulfate wet process photocatalytic activity plasma