Preparation of magnetic photocatalysts from TiO2, activated carbon and iron nitrate for environmental remediation

Fe2O3/TiO2/Activated Carbon Nanocomposite with Synergistic Effect of Adsorption and Photocatalysis

“…8. AC in the FT/AC nanocomposite can act as a bed in which pollutants can be adsorbed before transferring to the catalytic active sites because of the concentration difference [51]. Although the adsorption of reactants to the surface of the photocatalyst is an important step in photocatalytic reactions [52], very strong adsorption may inhibit photocatalytic reactions.…”

Use and misuse of the Kubelka-Munk function to obtain the band gap energy from diffuse reflectance measurements

“…Semiconductor materials have received increasing attention in the photocatalysis field because of their ability to degrade various pollutants present in water or air through a sequence of redox reactions [1][2][3][4][5]. The photocatalytic ability of semiconductors is related to the excitation of electrons from the valence band to the conduction band caused by the absorption of a photon with an appropriate wavelength.…”

Synergy mechanism for TiO2/activated carbon composite material: Photocatalytic degradation of methylene blue solution

“…[5] To overcome these problems, Shu et al [2] proposed fixing TiO 2 on an appropriate carrier to improve the removal efficiency of pollutants and increase the possibility of its recovery and reuse. [6] Different kinds of carrier for TiO 2 have been proposed in recent years, such as silica, [7] alumina, [8] zeolite, [9] activated carbon (AC), [10,11] and the like. TiO 2 /AC composite materials have received extensive attention in the field of photocatalytic degradation of wastewater, as AC has a high specific surface area, and strong and stable structure and composition.…”