摘要
研究了在自制反应舱中纳米TiO2对室内空气中甲醛的光催化降解反应的影响因素,比较了载体对TiO2光催化降解甲醛速率的影响,发现泡沫镍网镍网最适合作为载体。分析了掺杂的影响,发现活性炭和纳米掺锑氧化锡(ATO)粉末的加入能明显提高甲醛光催化降解速率。研究了粘结剂对TiO2光催化作用的影响,水玻璃的加入能够提高降解速率。
The influencing factors of TiO_2 on the photocatalytic degradation of formaldehyde were discussed by using self-made reaction cabin. Different carriers were compared and foaming nickel, as the best carrier, could accelerate the photocatalytic degradation of formaldehyde. Effects of the adulteration were analyzed and the results show that the photocatalytic degradation rates of formaldehyde increase obviously when doping active carbon and antimony tin oxide (ATO) nanopowder into TiO_2 photocatalyst. The influence of binders on the rate of photocatalytic degradation of formaldehyde was evaluated and Na_2SiO_3 shows an obvious accelerative effect.
出处
《实验室研究与探索》
CAS
2004年第12期12-13,16,共3页
Research and Exploration In Laboratory
基金
上海市纳米专项基金资助项目(项目编号:0123nm008)。
关键词
纳米粒子
二氧化钛
甲醛
光催化
nanoparticles
titanium dioxide
formaldehyde
photocatalyst
