Visible light – driven photocatalytic hydrogen production using Cu2O/TiO2 composites prepared by facile mechanochemical synthesis

A facile way to synthesize noble metal free TiO2 based catalysts for glycerol photoreforming

“…TEM analyses performed in similar samples confirmed the formation of a heterojunction between TiO2 and Cu2O [21].…”

“…A good photostability was observed, but a decrease of ca. 10% in the H2 formation was noticed, ascribable to a reduction of a little percentage of Cu + into metallic copper [21]. A run was performed with the 3% Cu2O P25 sample in pure water.…”

“…Regarding the photocatalysts studied for glycerol reforming, TiO2 has aroused great interest as an anodic site for substrate oxidation because it is an abundant, cheap and non-toxic material, which shows good thermal-and photo-stability [13]. As cathodic site, responsible for H2 evolution, a noble metal like platinum has been often used [14][15][16] and today few cheap alternatives with activities comparable to noble metals can be found in literature [17][18][19][20][21]. Mandari et al synthetized onto the surface of titania particles CuO and Cu3(PO4)2 clusters as promising photo-catalyst for the production of high quantities of H2 from glycerolwater solutions [22].…”

Photocatalytic and photoelectrocatalytic H2 evolution combined with valuable furfural production

“…Pt and in some cases W, Nb and Cu have been sometimes added to TiO2 to improve its performance. In particular, Pt was chosen because it demonstrated excellent activity for H2 formation from aqueous solution [28,29], Cu was effective in replacing Pt in reduction reactions as in the CO2 valorization [30,31] and photoreforming processes [32][33][34] whilst W, Nb improve the charges separation efficiency and enhance the selectivity in partial oxidation reactions [35][36][37][38].…”

A review of the preparation and photocatalytic hydrogen evolution of core–shell Cu2O composites

“…Yang et al 7 prepared TiO 2 /Cu 2 O nanorods by a simple method, and the compounded material had a higher photocatalytic efficiency compared to pure TiO 2 . In addition, the photocatalysts C 3 N 4 8 and Cu 2 O, 9 which are used in the visible region, have also been extensively studied. The evolution of photocatalysis is the result of continuous research and development of semiconductors, which, due to their special properties, are widely used in various industries such as machine learning, 10 big data 11 and artificial intelligence.…”