-C₃N₄–Co₃O₄ Z-Scheme Junction with Green-Synthesized ZnO Photocatalyst for Efficient Degradation of Methylene Blue in Aqueous Solution

Table 1

Efficiency, K_app, and R² values of the catalytic samples.

Samples	Efficiency (%)	Kapp (min^−1)	Correlation coefficient (R^2)
g-C3N4	41.92	0.000137	0.94606
ZnO	45.1	0.000154	0.91847
Co3O4	50.4	0.0002025	0.99151
GZC-1	93.56	0.000728	0.95585
GZC-2	94.16	0.000754	0.99036
GZC-3	97.40	0.001136	0.97613
GZC-4	91.54	0.000698	0.99648
GZC-5	84.64	0.000511	0.99774
GC	72.35551	0.000342	0.96373
GZ	80.01815	0.000448	0.99567