论文部分内容阅读
考察了光氧化水反应中,Na-Y型分子筛及金属氧化物组元配比对放氧活性的影响。加入空白的Na-Y型分子筛担体能提高单组元RuO_2/Y的催化活性,但导致 RuO_2/Y+MeO_x/Y及RuO_2/Y+PtO_x/Y+Me＇O_x/Y复合催化剂放氧活性降低。二元复合催化剂RuO_2/Y+FeO_x/Y的最佳组元配比为1:0.6(按纯金属μmol计)。比较了分浸和共浸两种方法制备的二元复合催化剂的催化活性,还考察了光敏剂/电子受体的配比对光氧化水反应的影响。
The effects of the ratio of Na-Y zeolite and metal oxide on the oxygen evolution activity were investigated. The addition of blank Na-Y zeolite supports can increase the catalytic activity of single-component RuO 2 / Y, but lead to the decrease of oxygen releasing activity of RuO 2 / Y + MeO_x / Y and RuO_2 / Y + PtO_x / Y + Me’O_x / Y composite catalysts . The optimum ratio of RuO_2 / Y + FeO_x / Y binary composite catalyst is 1: 0.6 (based on pure metal μmol). The catalytic activities of the binary composite catalysts prepared by both dipping and co-impregnation methods were compared. The effect of photosensitizer / electron acceptor ratio on the photooxidation reaction was also investigated.