One-Pot Synthesis of W-TiO₂/SiO₂ Catalysts for the Photodegradation of p-Nitrophenol

Table 1

Textural data and values of TiO₂, W-TiO₂, and W-.

Samples	(m^2/g)	(Å)	(cm^3/g)	(eV)
TiO2	140	39	0.21	3.20
W-TiO2	126	38	0.20	3.06
W-TiO2/SiO2	432	29	0.21	3.06

: surface area obtained by BET method; : average pore size; : pore volume; : gap band energy.