Table 3.

Comparison table on photodegradation of MB of the as-prepared photocatalysts with metal sulfides modified TiO₂.

Photocatalysts	Synthesis method	Pollutant content/(mg L−1)	Light Source	% of degradation	Ref
MoS2/TiO2	Hydrothermal method	5 mg/L	400 W Xe lamp visible light	99.33	52
CuxS/TiO2	In situ synthesis	10 mg/L	Visible	95	53
CdS/TiO2	SILAR method	12 mg/L	160 W Hg lamp	93.8	54
PbS/GR/TiO2	Sol–gel method	1 × 10-4 M	Visible	41	55
CuS/TiO2 nanofiber	Electrospinning and hydrothermal processes	10 mg/L	Visible	79.09	56
0.5CT_HT	Hydrothermal	50 mg/L MB + H2O2	450 W Hg lamp visible light	96	This work
3MT_PP	Precipitation	50 mg/L MB + H2O2	450 W Hg lamp visible light	100	This work