Table 1. Comparison of the Photodegradation Efficiency of RhB by ZnO/TCPP Nanocomposite and That of Composites in Published Studies with Similar Photocatalytic Experimental Conditions.

ZnO-based nanocomposites	light source/pollutant	experimental conditions	photodegradation efficiency (%)	refs
Bi2O3/ZnO	300 W Xe lamp	dosage = 1 g/L [RhB] = 4.8 mg	85	(37)
	rhodamine B	irradiation time = 180 min
CdS/ZnO	300 W Xe lamp	dosage = 0.5 g/L	100	(53)
	rhodamine B	[RhB] = 24 mg/L
		irradiation time = 180 min
CuO/ZnO	300 W Xe lamp	dosage = 0.3 g/L	100	(54)
	rhodamine B	[RhB] = 24 mg/L
		irradiation time = 120 min
CeO2/ZnO	8 W UV light	dosage = 0.5 g/L	98	(55)
	rhodamine B	[RhB] = 24 mg/L
		irradiation time = 180 min
SiO2/ZnO	UV light	dosage = N/A	93	(56)
	rhodamine B	[RhB] = 4.8 mg/L
		irradiation time = 100 min
Sr-ZnO	1000 W Xe lamp	dosage = 1 g/L	92	(57)
	rhodamine B	[RhB] = 10 mg/L
		irradiation time = 180 min
porphyrin-sensitized ZnO	1000 W halogen–tungsten lamp	dosage = 2 g/L	degradation rate constant = 5.03 × 10–2 min–1	(58)
	rhodamine B	[RhB] = 1 × 10–5 mol/L
		irradiation time = 60 min
porphyrin@porphyrin nanofibers	300 W Xe lamp	dosage = 0.04 g/L	100	this study
	rhodamine B	[RhB] = 5 mg/L
		irradiation time = 180 min