A novel lead hexagonal ferrite (PbFe12O19) magnetic separation catalyst with excellent ultrasonic catalytic activity

Selective removal of antibiotics over MgAl2O4/C3N4/YMnO3 photocatalysts: Performance prediction and mechanism insight

“…Such charge transfer promoted the separation of charge carriers in the MAO–CN–YMO heterojunction photocatalysts and enhanced the photocatalytic activity of the system. The conduction electrons react with oxygen in the reaction solution to form superoxide radicals (•O 2 − ) and eventually hydroxyl radicals (•OH) due to the redox potential of O 2 /•O 2− and O 2 /H 2 O 2 is −0.130 and 0.695 V, respectively 69–71 . The detailed expression of photocatalytic reaction is as follows: $$$$\begin{equation}{e_{{\rm{CB}}}}^ - + {{\rm{O}}_2} \to \bullet {{\rm{O}}_2}^ - \end{equation}$$$$ $$$$\begin{equation} \bullet {{\rm{O}}_2}^ - + {\rm{ }}2{{\rm{H}}^ + } + {e_{{\rm{CB}}}}^ - \to {{\rm{H}}_{\rm{2}}}{{\rm{O}}_{\rm{2}}}\end{equation}$$$$ $$$$\begin{equation}2{e_{{\rm{CB}}}}^ - + {\rm{ }}{{\rm{O}}_2} + {\rm{ }}2{{\rm{H}}^ + } \to {\rm{ }}{{\rm{H}}_{\rm{2}}}{{\rm{O}}_{\rm{2}}}\end{equation}$$$$ $$$$\begin{equation}{e_{{\rm{CB}}}}^ - + {{\rm{H}}_{\rm{2}}}{{\rm{O}}_{\rm{2}}} \to \bullet {\rm{OH}} + {\rm{O}}{{\rm{H}}^ - }\end{equation}$$$$ $$$$\begin{equation} \bulle...$$…”

“…The conduction electrons react with oxygen in the reaction solution to form superoxide radicals (•O 2 − ) and eventually hydroxyl radicals (•OH) due to the redox potential of O 2 /•O 2− and O 2 /H 2 O 2 is −0.130 and 0.695 V, respectively. [69][70][71] The detailed expression of photocatalytic reaction is as follows:…”

Designing of Z‐Scheme MgFe2O4/Fe2O3 Coupled CoCr2O4 Heterojunction with High Photocatalytic Activity for the Removal of Tetracycline Hydrochloride in Wastewater

“…Antibiotics have a wide range of applications in the treatment of bacterial, fungal, and mycoplasma infections, especially in the electrocatalysis, thermocatalysis, piezoelectric catalysis, ultrasonic catalysis, and so on. [6][7][8][9][10][11][12][13][14][15][16] Among these technologies, photocatalysis is a green technology that degrades antibiotics with the help of sunlight, which has been favored by researchers in various countries. [17][18][19] The selection of a suitable photocatalyst is a crucial determinant of photocatalytic degradation of antibiotics.…”

“…To eliminate the pollution of antibiotics to the environment, researchers in various countries have adopted a variety of means to degrade antibiotics and other pollutants, including adsorption, membrane separation, biodegradation, photocatalysis, electrocatalysis, thermocatalysis, piezoelectric catalysis, ultrasonic catalysis, and so on. [ 6–16 ] Among these technologies, photocatalysis is a green technology that degrades antibiotics with the help of sunlight, which has been favored by researchers in various countries. [ 17–19 ] The selection of a suitable photocatalyst is a crucial determinant of photocatalytic degradation of antibiotics.…”

Hexagonal Ferrite MFe12O19 (M=Sr, Ba, Cu, Ni, Pb) Based Photocatalysts: Photoluminescence, Photocatalysis and Applications

“…5 O 19 . [20,[27][28][29][30] Therefore, the design of MFe 12 O 19 -based photocatalysts for pollutant degradation can be based on the above theory.…”