Construction of ultra-thin 2D CN-Br0.12/2%RhOx photo-catalyst with rapid electron and hole separation for efficient bisphenol A degradation

Fabrication of an S-Scheme AgBr–PI Heterojunction for Biphenyl A Degradation and Its Degradation Pathways and Mechanism

“…These results indicated that the 0.5-AP exhibits an improved redox capacity due to the S-scheme charge transfer, which is consistent with the results of photoelectrochemical tests. Meanwhile, the TEMPO−h + signal of 0.5-AP was very strong in the dark and continually decreased with the extension of irradiation time, indicating the existence of h + , which is consistent with the radicals trapping experiments results Figure 7b− S4), 33,53,54 consistent with the reported results. Finally, these intermediates were gradually mineralized into CO 2 and H 2 O.…”

“…32 When the content of AgBr was further increased, the efficiency of the prepared photocatalyst decreased. The possible reason is that AgBr nanoparticles begin to agglomerate (Figure S4), 33 and cover the surface of PI nanosheets, weakening the light absorption efficiency of PI. As illustrated in Figure S5, the total organic carbon (TOC) was continuously decreased by 0.5-AP under constant lighting.…”

“…The generated intermediates products were detected by Liquid chromatography-mass spectrometry (LC–MS). 13 main intermediates were detected, which was identified as phenol [B: m / z (−) = 93], 4-isopropyphenol [C: m / z (−) = 239], 4-(2-(4-hydroxyphenyl)­propan-2-yl)­benzene-1,2-diol [D: m / z (−) = 243], ( Z )-5-(4-hydroxyphenyl)-5-methyl-4-oxohex-2-enoic acid [E: m / z (−) = 233], oxalic acid [F: m / z (−) = 90], 4-ethylphenol [G: m / z (−) = 121], hydroquinone [H: m / z (−) = 109], 4-(2-(4-hydroxyphenyl)­propan-2-yl)­cyclohexa-3,5-diene-1,2-dione [I: m / z (−) = 241], ( Z )-5-methyl-4-oxohex-2-enoic acid [J: m / z (−) = 141], 4-hydroxybenzaldehyde [K: m / z (−) = 122], benzoquinone [L: m / z (+) = 109], 4-isopropylcyclohexa-3,5-diene-1,2-dione [M: m / z (−) = 149], and maleic acid [M: m / z (−) = 115] (Figure S9a–f and Table S4), ,, consistent with the reported results. Finally, these intermediates were gradually mineralized into CO 2 and H 2 O.…”

3D/2D Heterojunction of CeO2/Ultrathin MXene Nanosheets for Photocatalytic Hydrogen Production

“…Second, as the illumination time increases, the signal becomes more intense, proving that the concentration of free radicals increases. 41 , 42 …”

Molecular engineering of g-C3N4 with spatial charge separation for enhancing photocatalytic performances

“…In these reaction systems, EY absorbed light to form an excited state, then transferred electrons to the CN. 34 The Br atom in the EY structure can accept an electron, 35 and the carboxyl group can attach to amine sites present on the edge of CN. 36 Thus, the presence of EY potentially acts as an electron-withdrawing group, which affects electron transfer and separation as well as H 2 evolution/CO 2 reduction.…”