论文部分内容阅读
本文考察了不同光催化剂(二氧化钛、酞化青、钙钛矿型化合物)对甲酸光氧化反应的影响。当甲酸溶液中存在二氧化钛时,在紫外光的照射下,能加速甲酸的光氧化反应;添加极少量酞化青(300mg二氧化钛中加入约0.03mg的酞化青)时,TiO_2的催化活性提高了25%左右;掺有Ce或Pr的钙钛矿型化合物SrTiO_3对甲酸的光氧化反应亦有一定的催化活性。对实验室光化学反应器结构、模拟太阳能光源——氰灯的性能及光强度测定方法亦作了简要介绍。
This article examines the different photocatalysts (titanium dioxide, phthalocyanine green, perovskite compounds) for formic acid photooxidation. When TiO 2 is present in formic acid solution, the photooxidation of formic acid can be accelerated under the irradiation of ultraviolet light. When a small amount of phthalocyanine is added (about 0.03 mg of phthalocyanine is added to 300 mg of TiO 2), the catalytic activity of TiO 2 increases 25%. The perovskite-type compound SrTiO_3 doped with Ce or Pr also has certain catalytic activity for the photooxidation of formic acid. The lab photochemical reactor structure, simulation of solar light source - cyanide performance and light intensity measurement method are also briefly introduced.