Preparation of TiO₂ Grafted on Graphene and Study on their Photocatalytic Properties

Table 4

Kinetic results of methyl orange degradation by TiO₂ photocatalysis.

Sample	k ^a/min^-1)	Half-life(t1/2/min)	RSQ^b	Removal efficiency in 12 min (%)
UV	0.06286	11.03	0.951	49.05
P25T iO2+UV	0.09443	7.34	0.961	67.14
Modified TiO2+UV	0.2655	2.62	0.941	95.50

is the first-order kinetic constant obtained using , RSQ^b = R-squared.