Enhanced photocatalytic removal of phenazopyridine by using silver-impregnated SiO2–TiO2 nanoparticles: optimization of synthesis variables

Characterization and Effect of Ag(0) vs. Ag(I) Species and Their Localized Plasmon Resonance on Photochemically Inactive TiO2

“…Therefore, much effort has been focused on enhancing the photocatalytic activity of TiO 2 , including doping with metal or non-metal species [17,18], surface sensitization [19,20], and noble metal deposition [21][22][23][24][25]. In particular, the noble metal deposition has attracted a lot of attention since it can improve e − -h + separation and enhance the semiconductor's absorption in the visible light region [26,27]. Noble metals such as Au, Pt, Ag, Pd, Rh, and coinage metals such as Ni etc., have lower Fermi levels than TiO 2 .…”

Photocatalytic Degradation of Oxytetracycline in Aqueous Solutions with TiO2in Suspension and Prediction by Artificial Neural Networks

“…An artificial neural network (ANN), which mimics biological neural processing , is applied in many fields of engineering and science as a promising tool because of its simplicity in simulation and prediction . Recently, some studies using ANN in modeling heterogeneous photocatalysis have been published, providing an alternative approach to the usual modelization .…”

The Effect of Molar Ratios of Ti/Si on Core-Shell SiO2@TiO2 Nanoparticles for Photocatalytic Applications

“…The concentration changes of phenol were analyzed by colorimetric method of 4-amino antipyrine at 510 nm, and the MB were analyzed by recording the maximum absorbance of MB at 664 nm. 1(d) and 2(c)) had rough and textured surfaces compared with the SiO 2 core particles, which confirmed that the titania was coated on SiO 2 core particle [23]. Besides, the uniform coating of silica in Ti/Si = 1 : 2 and Ti/Si = 1 : 5 also indicated that less titania molar content was conducive to the formation of core-shell structure by the hydrolysis-polycondensation process [24].…”