Systematic study of TiO₂/ZnO mixed metal oxides for CO₂ photoreduction

Abstract

A novel example using a systematic design of experiments mixture design for developing mixed metal oxide photocatalysts for CO2 photoreduction.

Hierarchical hyper-branched titania nanorods with tuneable selectivity for CO2 photoreduction

“…1 ). 24,30,31 The HBNs BP exhibited a cumulative conversion of CO at 7.9 μmol g cat −1 h −1 . On the other hand, it exhibited a very low selectivity towards CH 4 (9%) and produced only 0.4 μmol g cat −1 h −1 of CH 4 in contrast to 6.9 μmol g cat −1 h −1 for P25.…”

“…The CO 2 photoreduction were performed using the experimental set-up as described in previous work. 24 Briefly, the FTO glass samples were inserted into the cut-out slot of the photoreactor as shown on Fig. 1 .…”

Recent Advances of Photocatalytic Hydrogenation of CO2 to Methanol

“…Mixed metal oxide (MMO) is one of the most important photocatalysts, with features that differ from ordinary oxides in circumstances such as acid-base, redox, and surface area. These have been widely explored for several catalytic applications due to their excellent chemical-thermal stability compared to single oxides [70][71][72].…”

Facile one-pot synthesis of heterostructure SnO2/ZnO photocatalyst for enhanced photocatalytic degradation of organic dye

“…One interesting way to overcome such limitations and to achieve efficient charge separation is to couple ZnO with other semiconductor metal oxides having suitable band positions. In this context, various semiconductor based heterostructure photocatalysts have been designed and investigated such as Fe 3 O 4 /ZnO, 29 CeO 2 /ZnO, 30 ZnO-WO 3Àx , 31 SnO 2 /TiO 2 , 32,33 TiO 2 /ZnO, 34,35 CuO/ZnO. 36 Recently, Ahmad et al develop ZnO-decorated polypyrrole/ chitosan bio-nanocomposites by in situ polymerization of pyrrole in order to enhance the photocatalytic activity for the degradation of organic dyes.…”