Preparation of Cu2O/CeO2 heterojunction photocatalyst for the degradation of Acid Orange 7 under visible light irradiation

Preparation of p–n junction Cu2O/BiVO4 heterogeneous nanostructures with enhanced visible-light photocatalytic activity

“…The previous research work has been demonstrated that combining two or more semiconductors with appropriate band positions can effectively promote their photocatalytic activity because it can considerably improves the electron-hole pairs separation and interfacial charge transfer efficiency [25][26][27][28][29]. For example, BiVO 4 /CeO 2 nanocomposites [30] and the Bi 2 WO 6 /TiO 2 hierarchical heterostructure [31] were reported to exhibit much improved photocatalytic performance.…”

Mesoporous CePrO solid solution with efficient photocatalytic activity under weak daylight irradiation

“…On the other hand, better photocatalytic activities are often obtained with ceria-based compounds, generally produced by doping ceria with other metallic oxides. A p-n junction photocatalyst obtained by doping CeO 2 (a n-type semiconductor) with a p-type semiconductor such as Cu 2 O has a much higher photocatalytic activity because it can separate the photogenerated electrons and holes efficiently and improve the visible light absorption [13]. Recently, Cai et al proposed a hydrothermal method for the synthesis of Fe 3+ doped ceria and investigated its photodegradation properties [14].…”

Synthesis of novel Cu2O/BiOCl heterojunction nanocomposites and their enhanced photocatalytic activity under visible light

“…So far, the composite of Cu 2 O with other semiconductors or conductive materials has been the most common and effective means to solve this problem. The introduction of semiconductors can form a heterojunction structure with Cu 2 O, such as Cu 2 O/TiO 2 [5,[19][20][21], Cu 2 O/CeO 2 [22], ZnO/Cu 2 O [23] and Cu 2 O/BiVO 4 [24,25], improving separation efficiency of photogenerated charge carriers and enhancing the photocatalytic activity and stability of composite under visible light irradiation.…”