Research Progress on Rare Earth Doped Oxide Nano-photocatalysts
At present,environmental pollution has become a serious problem in human society.The appearance of photocatalyst provides a cheap and convenient way to solve this problem.Titanium dioxide photocatalyst was first discovered in the late 1960s,and then various photocatalysts appeared successively.At present,oxide photocatalyst is still an important catalyst.Common oxide photocatalysts include titanium dioxide,zinc oxide,etc.The oxide photocatalyst has excellent photocatalytic performance.After doping of rare earth ions,the threshold of photon energy absorption of the photocatalyst is reduced;the charge separation of the electron hole of the photocatalyst is promoted,and the impurity levels are introduced,which effectively improves the catalytic performance of the photocatalyst.
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