【摘要】 主要讨论了以锐钛矿型纳米二氧化钛为主体原料制成的空气净化喷雾剂降解甲醛的实验 ,结果表明此剂对甲醛能起到良好的降解效果。还考虑二氧化钛不同晶粒尺寸和不同晶体类型、甲醛不同初始浓度以及不同光源对甲醛降解的影响 ,并分析了原因更多还原

【Abstract】 Nanometer TiO₂ powder with anatase structure has excellent photocatalytic performance. Anatase TiO₂ demonstrated a higher photo-activity than rutile TiO₂ did. Spray mainly conducted by anatase nanometer TiO₂ was experimented to degrade unusable organic substances. Here formaldehyde was selected as a kind of typical contamination, the photocatalytic degradation of formaldehyde with the spray was investigated. Experiment results show that the amount of formaldehyde, TiO₂ crystalline type, light source TiO₂ crystalline dimension all affect the photocatalytic process.更多还原