Carbon coated titanium dioxide (CC-TiO₂) as an efficient material for photocatalytic degradation

Abstract

The proposed mechanism for the degradation of dye molecules.

Orange peel biochar/clay/titania composites: low cost, high performance, and easy-to-reuse photocatalysts for the degradation of tetracycline in water

“…[24][25][26][27] In particular, the addition of a carbonaceous component to a photocatalyst composite can improve the photocatalytic efficiency by improving pollutant adsorption, visible light absorption, and efficient charge separation. [28][29][30] Carbon materials have remarkable adsorption properties allowing for the accumulation of pollutants on their surface; this facilitates rapid interaction between active species and pollutant molecules. 28,[31][32][33][34] Secondly, doping of TiO 2 with carbonaceous material contributes to increased absorption of visible light.…”

“…[28][29][30] Carbon materials have remarkable adsorption properties allowing for the accumulation of pollutants on their surface; this facilitates rapid interaction between active species and pollutant molecules. 28,[31][32][33][34] Secondly, doping of TiO 2 with carbonaceous material contributes to increased absorption of visible light. 28,35 This doping interaction can occur through the substitution of carbon at titanium (C-O bond) or oxygen sites (Ti-C bond) in the TiO 2 lattice, resulting in band gap narrowing and extended absorption edge.…”

“…28,[31][32][33][34] Secondly, doping of TiO 2 with carbonaceous material contributes to increased absorption of visible light. 28,35 This doping interaction can occur through the substitution of carbon at titanium (C-O bond) or oxygen sites (Ti-C bond) in the TiO 2 lattice, resulting in band gap narrowing and extended absorption edge. [35][36][37] Moreover, carbon materials can form electron sinks which can enhance the charge separation within TiO 2 .…”