Two-dimensional CuO-ZnO nanohybrids with enhanced photocatalytic performance for removal of pollutants

Synthesis, characterization of novel ZnO/CuO nanoparticles, and the applications in photocatalytic performance for rhodamine B dye degradation

“…Nevertheless, CuO shows a low photocatalytic performance (Pirhashemi et al 2018) because of the high recombination rate of charge carriers in the CuO system. Therefore, the integration of ZnO and CuO could decrease the rate of recombination of photogenerated carriers (Sahu et al 2020). Moreover, S. Rtimi indicated that the signal for the iso-energetic charge transfer among Cu 2 O and ZnO and the electrostatic interaction between p-type Cu 2 O and ZnO accelerated the electron migration to the ZnO n-type semiconductor (Mamba et al 2018), enhanced the response to Vis light, and increased the photocatalytic performance under the sunlight.…”

“…Nevertheless, to the best of our knowledge, the optimum composition of CuO and the influence of Cu content have not been reported. Kavita Sahu et al (Sahu et al 2020) founded that the formation of p-n 2D CuO-ZnO hybrid nanoheterojunctions enhanced the photogenerated charge carrier separation, so that they exhibited excellent photocatalytic decomposition for methylene blue (MB), methylene orange (MO), and 4 nitrophenol (4-NP) under sunlight radiation. Ruan et al (2020) indicated that the ZnO/CuO n-n heterojunction photocatalysts, electron on the conduction band (CB) of ZnO, move to the valence band (VB) of CuO by the electrostatic attraction, and form electrons in the CB of CuO and holes in the VB of ZnO, respectively.…”

An In-Situ Reaction Route to Molecular Level Dispersed Bisimide and ZnO Nanorod Hybrids with Efficient Photo-Induced Charge Transfer

“…ZnO nanohybrids materials have attracted great attentions in photovoltaic electronics since ZnO nanomaterials have proper energy levels, low costs and an easy preparation process [12,13]. Among the ZnO-based organic-inorganic hybrids, perylene/ZnO hybrids as photoconductive hybrid materials were intensively studied [14][15][16][17][18] and showed very promising applications as cathode interlayer for high-performance solar cells.…”

An in-situ Reaction Route to Molecular Level Dispersed Bisimide and ZnO Nanorod Hybrids With Efficient Photo-Induced Charge Transfer

“…ZnO nanohybrids materials have attracted great attentions in photovoltaic electronics since ZnO nanomaterials have proper energy levels, low costs and an easy preparation process [13][14]. Among the ZnO based organic-inorganic hybrids, perylene/ZnO hybrids as photoconductive hybrid materials were intensively studied [15][16][17][18][19] and showed very promising applications as cathode interlayer for high performance solar cells.…”