Photoetching of Immobilized TiO₂-ENR₅₀-PVC Composite for Improved Photocatalytic Activity

Table 2

(a) EDX and (b) CHN analyses of the nonetched TiO₂-ENR₅₀-PVC composite and the photoetched TiO₂-ENR₅₀-PVC composites.

Sample	Weight (%)
	Carbon	Hydrogen	Oxygen	Titanium	Chloride
(a) EDX
TiO2 composite	9.14±0.87	—	40.20±2.10	49.93±3.54	1.04±0.14
Etched TiO2 composite	1.50±0.18	—	40.06±0.60	58.20±0.74	0.25±0.04
(b) CHN
TiO2 composite	4.61	0.51
Etched 3 h	3.22	0.09
Etched 6 h	3.15	0.15
Etched 9 h	1.39	0.01
Etched 10 h	1.20	0.05