A Comparative Evaluation of TiO₂ Suspension Coating Techniques: A Novel Technique to Achieve Optimal Thickness and Uniformity of Photocatalytic Film

Table 3

Coating frequency, UVA transmittance, and catalyst coating weight results for the spraying technique.

Sample code	Coating frequency	Catalyst weight (mg)	% UVA transmittance 1n 4 point
			(reference irradiation 8 W·m^−2)				Mean	Standard deviation
			1	2	3	4
M	10	26	2.3	2.7	3	2.8	2.7	0.3
N	10	26	2.2	2.6	3.2	3	2.75	0.44
O	10	27	2	1.9	2.1	2.2	2.05	0.13
J	10	25	2.7	2.9	3	3	2.9	0.14
Q	10	25	2.9	3.1	3.2	3	3.05	0.13