讨论了温度对暴露{101}晶面锐钛矿型TiO2光催化性能的影响,测定了热催化性能,对比了锐钛矿型TiO2{101}晶面和{001}晶面的光催化和光热协同催化性能。结果表明:暴露{101}晶面的锐钛矿型TiO2随着反应温度的升高,光催化降解苯的效率越高。光催化反应和热催化反应之间存在着协同效应。光热协同催化降解苯的CO2本征生成速率较光催化提升了7.19倍。锐钛矿型TiO2{101}晶面比{001}晶面具有更高的光催化降解苯的活性,较低的光热协同活性。
Anatase TiO2 with exposed {101} facets was discussed in the influence of temperature to the photocatalysis.The thermocatalysis for benzene degradation was tested.The photocatalysis and photothermocatalysis were contrasted between anatase TiO2 with exposed {101} facets and {001} facets.The results indicated that with the increase of the temperature,the photocatalysis for benzene degradation improved.There was synergetic effect between photocatalysis and thermocatalysis.The CO2 specific production rate of photothermocatalysis for benzene degradation increased 7.19 times higher than that of photocatalysis.Anatase TiO2 with exposed {101} facets showed higher photocatalytic activity and lower photothermocatalytic activity for benzene degradation than anatase TiO2 with exposed {001} facets.
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