Photo-anodes based on B-doped TiO2 for photoelectrocatalytic degradation of propyphenazone: Identification of intermediates, and acute toxicity evaluation

Synthesis and Characterization of N and Fe-Doped TiO2 Nanoparticles for 2,4-Dimethylaniline Mineralization

“…For all samples can observed the presence of peaks related to Ti 3p, Ti 3s, C 1s, Ti 2p, O 1s, and Ti 2s at around 26.0, 39.0, 286.0, 462.0, 533.0, and 566.0 eV, respectively. The origin of carbon is common in XPS analyses, resulting from the strong adsorption of a contaminating layer or hydrocarbon from the carbon strip of the instrument [ 35 , 43 ]. The chemical composition of photocatalysts is shown in Table 2 .…”

“…The higher mineralization rate for the 3% N photocatalyst is the result of the increase in surface area (78.66 m 2 g −1 ) in relation to pure TiO 2 (95.69 m 2 g −1 ). It was also observed that the pore diameter was reduced from 9.72 nm (pure TiO 2 ) to 9.03 nm (3% N), and the mean particle diameter obtained by the MET results was reduced from 16.16 nm to 12.27 nm for 3% N. With the improved contact surface, more ROS can be generated thus increasing photocatalytic activity [ 18 , 35 ].…”

“…The synthesis of photocatalysts via sol-gel followed the procedure described below [ 18 , 35 ]. A volume of 19.10 mL of titanium IV isopropoxide (97%, Sigma Aldrich, St. Louis, MO, USA) and 16.10 mL of glacial acetic acid (99.7%, Alphatec, Carlsbad, CA, USA) was added to a beaker and left under magnetic stirring.…”

“…N-Fe co-doped TiO 2 were prepared by fixing 0.025% Fe and varying only N by 2, 3, and 4% ( w / w ). These concentrations of N and Fe were chosen based on previous work [ 18 , 35 ]. The effects of the presence of N and Fe on the physical and chemical properties of photocatalyst particles were investigated by increasing or decreasing the photocatalytic response in 2,4-DMA mineralization.…”

The application of photoelectrocatalysis in the degradation of rhodamine B in aqueous solutions: a review

“…For example, boron, nitrogen, graphene, nitrogen and fluorine are common non-metal dopants that have been used to promote visible light absorption in TiO 2 . 65–67…”