Activities of Combined TiO₂ Semiconductor Nanocatalysts Under Solar Light on the Reduction of CO₂

Abstract

The materials based on TiO2 semiconductors are a promising option for electro-photocatalytic systems working as solar energy low-carbon fuels exchanger. These materials' structures are modified by doping metals and metal oxides, by metal sulfides sensitization, or by graphene supported membrane, enhancing their catalytic activity. The basic phenomenon of CO2 reduction to CH4 on Pd modified TiO2 under UV irradiation could be enhanced by Pd, or RuO2 co-doped TiO2. Sensitization with metal sulfide QDs is effective by moving of photo-excited electron from QDs to TiO2 particles. Based on characteristics of the catalysts various combinations of catalysts are proposed in order to creat catalyst systems with good CO2 reduction efficiency. From this critical review of the CO2 reduction to organic compounds by converting solar light and CO2 to storable fuels it is clear that more studies are still attractive and needed.

Heterogeneous photocatalytic organic synthesis: state-of-the-art and future perspectives

“…Liu et al have reviewed the activities of combined TiO 2 semiconductor nanocatalysts under solar light for the reduction of CO 2 . 38 Both reviews by Li et al and Liu et al have concluded that more studies are still needed for such systems. 37,38 Liu et al also identified several materials and systems based on TiO 2 semiconductors for the electrophotocatalytic CO 2 reduction to methane.…”

“…38 Both reviews by Li et al and Liu et al have concluded that more studies are still needed for such systems. 37,38 Liu et al also identified several materials and systems based on TiO 2 semiconductors for the electrophotocatalytic CO 2 reduction to methane.…”

Isatin‐SO3H coated on amino propyl modified magnetic nanoparticles (Fe3O4@APTES@isatin‐SO3H) as a recyclable magnetic nanoparticle for the simple and rapid synthesis of pyrano[2,3‐d] pyrimidines derivatives

“…Magnetic nanoparticles (MNPs) can be regarded as an attractive field in various biological, medical, and industrial application, such as solar water, solar cells, semiconductors, data storage, magnetic fluids, magneto‐thermal therapy, magnetic resonance imaging, biomolecular sensors, and drug delivery . One of the most applicable capabilities of nanoparticles in the organic chemistry is the catalyst role with a high surface to volume ratios and their surface atoms which are very active and selective .…”

Application of 1‐methyl imidazole‐based ionic liquid‐stabilized silica‐coated Fe3O4 as a novel modified magnetic nanocatalyst for the synthesis of pyrano[2,3‐d]pyrimidines

“…Nanoparticles (NPs) can be regarded as an attractive field in industry and science because they represent numerous applications such as in solar water heating, solar cells, semiconductors, data storage, magnetic fluids, etc. One of the most applicable capabilities of NPs in the organic chemistry is their role as catalysts with high surface to volume ratios and their surface atoms which are very active and selective .…”