SILICA-TITANIA COMPOSITE AEROGEL PARTICLE, METHOD FOR PRODUCING SILICA-TITANIA COMPOSITE AEROGEL PARTICLE, PHOTOCATALYST-FORMING COMPOSITION, PHOTOCATALYST AND STRUCTURE

• Main Authors: YOSHIKAWA HIDEAKI, TAKEUCHI SAKAE, ZENITANI YUKA, KAJIMA YASUNOBU, IWANAGA TAKESHI, SUMIKURA YASUO, OKUNO HIROYOSHI, NOZAKI SHUNSUKE
• Format: Patent
• Language: English; Japanese
• Published: 28.03.2019
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; INORGANIC CHEMISTRY; METALLURGY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

To provide a silica titanium composite aerogel particle that exhibits a high photocatalytic function in the visible range.SOLUTION: A silica-titania composite aerogel particle includes a base particle with an element ratio of silicon and titanium, Si/Ti, of more than 0 and 6 or less. The silica-titania composite aerogel particle has a BET specific surface area in the range of 200 m/g to 1,200 m/g, and has absorption at wavelengths of 450 nm and 750 nm in a visible absorption spectrum.SELECTED DRAWING: None 【課題】可視光領域においても高い光触媒機能を発現するシリカチタニア複合エアロゲル粒子を提供する。【解決手段】ケイ素とチタンとの元素比Ｓｉ／Ｔｉが０を超えて６以下である母粒子を有し、ＢＥＴ比表面積が２００ｍ２／ｇ以上１２００ｍ２／ｇ以下であり、可視吸収スペクトルにおいて波長４５０ｎｍ及び７５０ｎｍに吸収を持つ、シリカチタニア複合エアロゲル粒子。【選択図】なし