The photoelectric catalytic reduction of CO₂ to methanol on CdSeTe NSs/TiO₂ NTs

Abstract

The preparation of orderly CdSeTe with a flaky structure (similar to the solar panels), and then the assembly of the CdSeTe nanosheets (CdSeTe NSs) onto TiO2 NTs (the TiO2 NTs are equivalent to the roof).

Co-doped MoS2 NPs with matched energy band and low overpotential high efficiently convert CO2 to methanol

“…The reason is that hydrogen evolution reaction is not obvious before −0.9 V, the major reaction is the reduction of CO 2 . With the continued rise of potential, hydrogen evolution reaction competes with CO 2 reduction, which results in the decrease of CO 2 reduction efficiency and the methanol yield [43,44]. The largest methanol yield under −0.9 V is consistent with the largest photoelectrical conversion efficiency at this potential.…”

A New Si/TiO2/Pt p-n Junction Semiconductor to Demonstrate Photoelectrochemical CO2 Conversion

“…Figure 5b). This fact indicates that CO 2 acts as much better electron scavenger (capturing the photoelectrons generated by e -/h + separation from Si/TiO 2 /Pt) than water [22,41]. Si/TiO 2 /Pt under CO 2 , light and -0.8 V potential conditions produces a current 5 times higher than the semiconductor without CO 2 and light application, and 3 times more intense than under light without CO 2 saturation.…”

“…Yang et al [21] performed photoelectrocatalytic CO 2 reduction using one-dimensional ribbon CoPc enhanced Fe 2 O 3 nanotubes, and Li and coworkers [22] prepared TiO 2 nanotubes modified with a CdSeTe nanosheet aiming at photoelectrocatalytic CO 2 reduction.…”

Photocatalytic Reduction of CO2 over Heterostructure Semiconductors into Value‐Added Chemicals

“…A variety of 1D nanostructures, including nanotubes, nanobelts, and nanowires, have been coupled with a second semiconductor to build the heterostructure, such as Cu 2 O/TiO 2 nanotubes, [57] CdSeTe/TiO 2 nanotubes, [65] CuO/Cu 2 O nanorods, [50] ZnFe 2 O 4 /TiO 2 nanobelts, [66] and g-C 3 N 4 /NaNbO 3 nanowires. [67] For example, ZnFe 2 O 4 nanoparticles successfully grew on the surface of TiO 2 nanobelts by the hydrothermal method ( Figure 7).…”