Photocatalytic Improvement under Visible Light in Nanoparticles by Carbon Nanotube Incorporation

Table 1

Several photocatalysts made of CNT/TiO₂ composites (prepared by sol-gel technique) for photocatalytic degradations of dyes or pollutant under UV and visible radiations from opened literatures.

Catalyst	Titanium precursor	Dye/pollutant	Light source	Degradation efficiency	Reference
CNT/TiO2	TTIP	MO	UV	99%	Saleh and Gupta [16]
				99%	Shitole et al. [11]
				99%	Xu et al. [19]
		MB	Visible	50%	Guo et al. [17]
		Phenol	UV	60%	Yao et al. [18]
	TNB	MO	UV	99%	Hu et al. [20]
		MB	Visible	60%	Zhang et al. [23]
			UV	70%	Oh et al. [21]
				99%	Li et al. [25]

MO = methyl orange; MB = methylene blue; TTIP = titanium tetraisopropoxide; TNB = titanium butoxide.