Efficient photocatalytic H2 evolution over Cu and Cu3P co-modified TiO2 nanosheet

Photoluminescence properties of cuprous phosphide prepared through phosphating copper with a native oxide layer

“…6a . 22 Therefore, the hole transfer from Cu 2 O to Cu 3 P occurs and forms a space charge region at the interface when the two materials come into contact, shown in Fig. 6b .…”

“…The band gaps of Cu 3 P and Cu 2 O are 1.67 eV and 2.43 eV, respectively, which are consistent with the results of other groups. 22,[31][32][33][34] 3.5. PL Fig.…”

“…Fu et al reported that the band gap of Cu 3 P is 1.55 eV (in the range of infrared). 22 Therefore, the fluorescence emission wavelength of Cu 3 P needs further study. In addition, the reported fluorescence emission intensity is low, so how to improve the intensity is also a scientific problem that needs to be studied.…”

0D/2D Co0.85Se/TiO2 p–n heterojunction for enhanced photocatalytic H2 evolution

“…Apart from morphology adjustment, heterojunction construction is also an effective approach to optimize photocatalytic efficiency. Many semiconductors are used to improve the performance of TiO 2 , such as oxides (NiO, 23 WO 3 , 24 Co 3 O 4 , 25 and CoTiO 3 ), 26 sulfides (In 2 S 3 , 27 CoS, 28 NiS x , 29 and ZnIn 2 S 4 ),30 and phosphides (Cu 3 P, 31 CoP, 32 and NiCoP ).33 In recent years, cobalt selenides (CoSe, 34 CoSe 2 , 35 and Co 3 Se 4 )36 have received widespread attention due to their low cost, high conductivity, and excellent catalytic activity. Compared with stoichiometric CoSe, nonstoichiometric Co 0.85 Se has a better half-metallic feature, 37 which can promote electron transfer and has been applied in the electrocatalysis field (Table S1†).…”

Chemical Vapor Deposition and Thermal Oxidation of Cuprous Phosphide Nanofilm

“…Copper compounds generally show ptype properties, such as cuprous oxide, cuprous sulfide and cuprous halide [5][6][7], and cuprous phosphide (Cu 3 P) is one of them. Cuprous phosphide is a p-type, narrow band gap semiconductor with an energy gap of about 1.6 eV [8][9][10][11], which is of potential applications in light-emitting diodes, photodetectors, sensors and catalysis [12][13][14][15][16][17][18]. The morphologies of cuprous phosphide reported are usually thick film or nanosheets.…”