졸-겔법에 의한 TiO2 분체 합성 및 주방용 합성세제의 광분해 효과

• 영문명: Preparation of TiO2 Powder by Sol-Gel Method and Their Photocatalytic Decomposition Effect of Synthetic Detergents for Kitchen Use
• 발행기관: 한국응용과학기술학회 (구.한국유화학회)
• 저자명: 정용준(Chung YoungJoon) 류완호(Roo WanHo) 양천희(Yang ChunHoe)
• 간행물 정보: 『한국응용과학기술학회지』한국유화학회지 제21권 제2호, 140~147쪽, 전체 8쪽
• 주제분류: 공학 > 화학공학
• 파일형태: PDF
• 발행일자: 2004.06.30

영문 초록

An aqueous solution of a commercial liquid synthetic detergent for kitchen use was photodecomposed in the presence of titanium dioxides powder under an atmosphere of air at room temperature. Titanium dioxides were prepared by sol-gel method from titanium iso-propoxide at different R ratio(H2O/titanium iso-propoxide) and calcined at 500^{circ}C. All titanium dioxides were characterized by XRD, BET surface area analyzer and UV-VIS spectrometer. The surface area of titanium dioxides prepared at R ratio=6 appeared higher volume about 20% than commercial TiO2 catalysts. XRD patterns of titania particles were observed mixing phase together with rutile and anatase type. Titanium dioxides prepared by sol-gel method show higher activity about 6% than commercial TiO2 catalysts on the photocatalytic degradation of a commercial liquid synthetic detergent for kitchen. The concentration of the detergent decreased to about 90% of its initial value at illumination times of 2 hour. Illumination for 30 minutes decreased the concentration of oxygen to about one-fifth of the initial value.

키워드

synthetic detergent for kitchen use titanium dioxides sol-gel method photocatalytic degradation