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

Table 4

Degradation rate as a function of the concentration of Y₂O₃ and pseudo-first order rate constants derived from fitting experimental data to computer model.

Y2O3 content/%	Rate constant (10^−3 min^−1)	Correlation coefficient, 𝑅^2
0	8.6	0.996
0.25	14.3	0.985
0.50	16.4	0.982
0.75	12.8	0.989
1.00	9.6	0.969