Efficient photo-Fenton catalysis using magnetic iron nanoparticles decorated boron nitride quantum dots: theoretical and experimental investigations

Abstract

Highly effecient photo-Fenton catalysts of iron decorated boron nitride quantum dots were prepared.

https://journal.uod.ac/index.php/uodjournal/article/view/2818

“…The rate of eosin yellowish dye degradation is determined by the studied peak at 517 nm. The plotting log-log graphical method, showed in Figure 5, The first order of peak at 517 nm degradation was found for this dye (Shinwar et al, 2021;Shinwar et al, 2022;Shinwar et al, 2023;Mohammed & Shinwar, 2020;Haydar et al, 2018). Effect of catalyst dose Photo-degradation of eosin yellowish dye have-been-measured-using UV light with catalyst (TiO 2 )-0.01 and 0.05 gm/dm 3 .…”

“…The lowest concentration of eosin yellowish (5 ppm) showed high transparency to light compared to the highest concentration of dye (20 ppm) which showed less transparency to light, indicating a better dye degradation at lower concentrations. (Shinwar et al, 2021;Shinwar et al, 2022;Shinwar et al, 2023;Mohammed & Shinwar, 2020).…”

“…Equation (1) illustrates the firstorder equation. (Shinwar et al, 2021;Shinwar et al, 2022;Shinwar et al, 2023;Mohammed & Shinwar, 2020;Haydar et al, 2018).…”

“…The degradation rate increases in high alkaline medium at pH 12 (Elaziouti et al, 2011).-The pH of solution is-the-key-factor-for the photo catalytic reaction and can have an effect-on-the-adsorption-of -dyes -on -the photo catalyst surface. The-adsorption ability-of eosin yellowish dye on-the-TiO 2 catalystsurface-was-very-high-at-acidic solution (pH = 3),-but-dropped-when-the solution pH rise from-3, 6, 9 and 12 and no adsorption occurred at pH = 12 (Shinwar et al, 2021;Shinwar et al, 2022;Shinwar et al, 2023;Mohammed & Shinwar, 2020;Haydar et al, 2018).…”

“…Sequence of experiments were performed to investigate the effect of-using different temperatures (20, 25, 30 and 35) on the degradation of eosin yellowish dye under UVlight at 517 nm. As shown in figure 8 the degradation enhanced by increasing the temperature because the kinetic energy of the molecules increase collide with photon of the ultraviolet light become faster and more degradation occurs (Shinwar et al, 2021;Shinwar et al, 2022;Shinwar et al, 2023;Mohammed & Shinwar, 2020).…”