Cuprous oxide (Cu2O) is a typical p-type direct band-gap semiconductor with a band gap of about 2.0 eV. Due to its high solar irradiation adsorption coefficient and photoelectrohemical properties, Cu2O has been extensively investigated for application in photocatalysis for environmental pollution control. In order to overcome its shortage of low photocatalytic activity and stability, many methods such as doping, hybridization, and morphology control have been used. In this chapter, different methods to modify Cu2O are introduced. Since structu...
