Effect of active species scavengers on the MB decomposition efficiency (%D).

Sample type	8 wt% WO3/TiO2				TiO2@WO3				WO3@TiO2
	%D	K a (×10−2 min−1)	R 2	Inhibition	%D	K a (×10−2 min−1)	R 2	Inhibition	%D	K a (×10−2 min−1)	R 2	Inhibition
Without scavenger	94.9	2.48	0.9967	—	95.8	5.33	0.9986	—	82.5	1.41	0.993	—
p-BQ	72.0	1.09	0.9969	−56%	87.9	3.60	0.9931	−32%	76.2	1.20	0.9974	−15%
Na2-EDTA	67.0	0.92	0.9981	−63%	66.1	1.79	0.9941	−66%	71.5	1.05	0.9992	−26%
IPA	55.6	0.70	0.9969	−72%	42.1	0.91	0.9955	−83%	68.1	0.99	0.9968	−30%