Batch sorption–photodegradation of Alizarin Red S using synthesized TiO2/activated carbon nanocomposite: an experimental study and computer modelling

Visible Light Enhancement of Biocarbon Quantum-Dot-Decorated TiO2 for Naphthalene Removal

“…As a matter of fact, three internal approaches, i.e., quantitative effect, compositional engineering, and size quantization, have been simultaneously yet unintentionally exerted in bio-CQDs doping TiO 2 [ 39 , 40 ]. Regarding the pH effect, the composite catalyst had a good catalytic effect on naphthalene around pH = 6 ( Figure 6 c), which was greatly affected by TiO 2 ; this increased the acid–basic balance to pHzpc ~6.39 [ 41 , 42 ]. When the pH value of the reaction system is less than pHzpc, the increase in H + in the solution will cause Ti-OH 2+ generation; this is suitable for attracting photogenerated electrons and thereby effectively reducing the recombination rate of photogenerated electrons and holes.…”

Visible Light Up-conversion of Bio-Carbon Quantum-Dot-Decorated TiO2 for Naphthalene Removal

“…This overdose effect was most obvious with the composite mass; the photocatalytic efficiency of the naphthalene solution was the best, at 86.63%, with the mass of CQD/TiO2 achieving 0.03 g (Figure 6-b). Regarding the pH effect, the composite catalyst had a good catalytic effect on naphthalene around pH=6 (Figure 6-c), which was greatly affected by TiO2; this increased the acid-basic balance to pHzpc ~6.39 [35,36]). When the pH value of the reaction system is less than pHzpc, the increase in H+ in the solution will cause Ti-OH 2+ generation; this is suitable for attracting photo-generated electrons and thereby effectively reducing the recombination rate of photogenerated electrons and holes.…”

Creation of a facile heterojunction in Co/ZnO–TiO2 for the photocatalytic degradation of alizarin S

“…Moreover, the non-biodegradable nature in aerobic and anaerobic environments makes its release detrimental for the aquatic ecosystem and also poses a direct threat to human beings and animals. [3][4][5][6][7] Thus, the high chemical resistance of alizarin Red S makes it highly challenging to be removed from water bodies.…”