Photocatalytic reduction of CO2 on Pt2+–Pt0/TiO2 nanoparticles under UV/Vis light irradiation: A combination of Pt2+ doping and Pt nanoparticles deposition

Vapor growth of binary and ternary phosphorus-based semiconductors into TiO2 nanotube arrays and application in visible light driven water splitting

“…The absorption spectra of TiO 2 nanotubes show an intense band at 330 nm with band tailing up to 384 nm, which corresponds to a valence band to conduction band (O2p / Ti3d) transition. 45,46 The UV-Vis spectra of NaP 7 displayed broad absorption in the visible region extended up to 800 nm, which is attributed to charge generation in the phosphide chain motif. The NaP 7 @TiO 2 heterostructures displayed an absorption band which corresponded to TiO 2 along with an absorption prole in the visible region due to the presence of NaP 7 .…”

Synthesis of tantalum oxynitride with enhanced visible light efficiency in photoreduction of carbon dioxide

“…Then, the photo-produced eand and h + could reacted with CO 2 and H 2 O to produce CO, CH 4 and O 2 as shown by following equations. [15,16] Equations 2 and 3 show that 8 mol protons and 8 mol eare needed to obtain 1 mol CH 4 , whereas the generation of 1 mol CO requires 2 mol protons and 2 mol e -. However, the generation of CH 4 (E o redox = -0.24 V) is thermodynamically more feasible than the generation of CO (E o redox = -0.48 V).…”

Platinum Nanoparticles Supported on TiO2 Photonic Crystals as Highly Active Photocatalyst for the Reduction of CO2 in the Presence of Water

“…TheP t4fr egion contains six peaks,w ith the peaks centered at 70.0 and 73.5 eV, 71.5 and 75.3 eV,and 74.4 and 76.5 eV being assigned to metallic Pt 0 and the Pt 2 + and Pt 4 + species,r espectively (Figure 4C). [36] Pt 0 and the Pt & + (Pt & + :Pt 2 + and Pt 4 + )s pecies act as electront rapping centers for electrons from the CB of TiO 2 under solar illumination, which can decreasethe recombinationrates of photogenerated electron-hole pairs.…”