CuO/TiO₂ heterojunction composites: an efficient photocatalyst for selective oxidation of methanol to methyl formate

Abstract

This study demonstrates the synthesis of an efficient photocatalyst, CuO/TiO2 heterojunction, for selective aerobic photo-oxidation of methanol to methyl formate.

Enhancement of Photoelectrochemical Cathodic Protection of Copper in Marine Condition by Cu-Doped TiO2

“…However, the electron generation ability of 0.5 Cu/TiO 2 particles is greater than that of 1 Cu/TiO 2 particles and 0.1 Cu/TiO 2 particles as mentioned in Figure 2. Furthermore, the rate of electron-hole recombination of 0.1 Cu/TiO 2 50 film (50 wt% of 0.1 Cu/TiO 2 particles and 50 wt% of TiO 2 particles) is higher than that of 0.5 Cu/TiO 2 10 film (10 wt% of 0.5 Cu/TiO 2 particles and 90 wt% of TiO 2 particles) and 1 Cu/TiO 2 5 film (5wt% of 1 Cu/TiO 2 particles and 95 wt% of TiO 2 particles), respectively, which were previously reported by Shi et al [11] and Wang et al [12]. Photopotential of composite films with different Cu contents tends to increase with the increase in the Cu loading.…”

Controlling interface properties for enhanced photocatalytic performance: a case-study of CuO/TiO2 nanobelts

“…The enhanced optical adsorption of CuO/TiO 2 nanobelts is mainly ascribed to the d-d transition of Cu 2+ . 40 It can be concluded that the special phenomenon is another piece of solid evidence to verify the existence of CuO species in the CuO/TiO 2 nanobelts.…”

Junction Engineering for Photocatalytic and Photoelectrocatalytic CO2 Reduction

“…The coexposure of {001} and {101} facets of TiO 2 realized the spontaneous transfer of photogenerated electrons and holes to the respective facets, and CuO on the {101} facets anchored the electrons to avoid charge recombination. [ 69 ] As a result, the CuO/{001}/101} TiO 2 exhibited much enhanced PC performance ( Figure a). To further achieve the orientated migration of electrons and holes, Meng et al [ 70 ] reported Pt–{101}TiO 2 –{001}TiO 2 –MnO x (TMP) multijunction by a combined hydrothermal and photodeposition method, in which the photogenerated electrons and holes from TiO 2 (T) realized spontaneous separation between {101} and {001} facets, and then they were transferred to Pt and MnO x , respectively (Figure 14b,c).…”