MWCNT-Based Ag₂S-TiO₂ Nanocomposites Photocatalyst: Ultrasound-Assisted Synthesis, Characterization, and Enhanced Catalytic Efficiency

Table 3

UV and visible light photodegradation rate (𝑘_app) constants of pure TiO₂, Ag₂S/TiO₂, CNT-TiO₂, and Ag₂S-TiO₂/CNT catalysts.

Catalysts	𝑘app (min^-1)
	UV light	Visible light
TiO2	9.01×10^−4	0
Ag2S/TiO2	1.97×10^−3	1.67×10^−3
CNT-TiO2	2.48×10^−3	2.02×10^−3
Ag2S-TiO2/CNT	5.32×10^−3	3.18×10^−3