常温常压气-固光催化CO2加氢合成一碳化合物的研究

大气中ＣＯ２含量的增加是导致最严重环境污染－－温室效应的主要原因，因此，人们对ＣＯ２的固定及利用越来越重视，目前对水溶液悬浮体系光催化还原ＣＯ２研究得比较多，气－固光催化体系中，常温常压下合成ＣＯ２＋Ｈ２为有机物少有报道。通过对几种ＴｉＯ２型催化剂在悬浮体光催化体系中ＣＯ２催化活性的比较，选择了活性较高的Ｐｄ／ＲｕＯ２／ＴｉＯ２催化剂，采用原位红外的实验方法对ＣＯ２加氢反应及其产物进行了研究，结果

Synthesis of one carbon atom compound by hydrogenate of CO_2 under gas-solid photocatalysis in normal temperature and pressure

It is well known that the increase of content of CO 2 in the air causes the environmental pollution to result in greenhouse effect, thus people pay more and more attention to CO 2 fixation and use. Presently there have been many reports that involve the investigation of photocatalysis reducing CO 2 in aqueous solution suspension system, but not much on the study of CO 2 H 2 being changed to organic compounds in gas solid system in normal temperature and pressure. By comparing the catalysis activity of several TiO 2 catalysts in suspension photocatalysis system, we chosed higher active catalyst of Pd/RuO 2/TiO 2, to study the reaction of CO 2 hydrogenate and its product by original infrared experimental method. The results show that it is possible to synthesize one carbon atom compounds through CO 2 photocatalysis hydrogenate and prepared one carbon atom compounds such as formic acid, formaldehyde and methanol by photocatalysis hydrogenate of CO 2 on the surface of catalyst of Pd/RuO 2/TiO 2 loaded on Al 2O 3.