Preparation, Characterization, and Activity of Y₂O₃-ZnO Complex Oxides for the Photodegradation of 2,4-Dinitrophenol

Table 1

The absorption edge and absorb intensity of ZnO and Y₂O₃-ZnO complex oxides contained different Y₂O₃ content.

Y2O3 content/%	Absorb edge (nm)	Band gap (eV)	Absorption intensity (a.u.)
0	383	3.24	6.74
0.25	381	3.26	8.31
0.50	378	3.28	10.63
0.75	379	3.27	7.67
1.00	382	3.25	3.89