Heterojunction of (P, S) co-doped g-C3N4 and 2D TiO2 for improved carbamazepine and acetaminophen photocatalytic degradation

Phytic Acid-Bridged Copper on Sulfur-Containing Carbon Nitride for Enhancing Photocatalytic CO2 Reduction to CH3OH

“…In Figure b, the three distinct peaks observed at 398.8, 400.3, and 401.4 eV in the SCN indicate the presence of chemical bonds of C–N–C, N–(C) 3 , and N–H x , respectively. , The N 1s spectra of 15%CuPA/SCN closely resemble that of SCN, with the exception that the binding energy of C–N–C in 15%CuPA/SCN shifts to a slightly higher value (from 398.8 to 399.0 eV). ,, This change is attributed to the strong electrostatic interaction between CuPA and SCN, providing further evidence of the recombination of the CuPA complex and SCN nanosheets.…”

“…31,34 The N 1s spectra of 15%CuPA/SCN closely resemble that of SCN, with the exception that the binding energy of C−N−C in 15%CuPA/SCN shifts to a slightly higher value (from 398.8 to 399.0 eV). 30,35,36 This change is attributed to the strong electrostatic interaction between CuPA The phenomenon of peaks moving toward higher binding energy also can be seen in the P 2p energy spectrum (Figure 3d, shifting from 133.9 eV in CuPA to 134.1 eV in 15%CuPA/ SCN) and S 1s energy spectrum (Figure 3e, shifting from 168.7 eV in CuPA to 169.1 eV in 15%CuPA/SCN), proving that CuPA has been successfully anchored on SCN nanosheets. 30 The XPS spectra of Cu atoms (Figure 3f) displayed negligible discrepancies between CuPA and 15%CuPA/SCN, indicating minimal variation in the chemical environments.…”

“…30,35,36 This change is attributed to the strong electrostatic interaction between CuPA The phenomenon of peaks moving toward higher binding energy also can be seen in the P 2p energy spectrum (Figure 3d, shifting from 133.9 eV in CuPA to 134.1 eV in 15%CuPA/ SCN) and S 1s energy spectrum (Figure 3e, shifting from 168.7 eV in CuPA to 169.1 eV in 15%CuPA/SCN), proving that CuPA has been successfully anchored on SCN nanosheets. 30 The XPS spectra of Cu atoms (Figure 3f) displayed negligible discrepancies between CuPA and 15%CuPA/SCN, indicating minimal variation in the chemical environments. It can be concluded that the Cu atoms have been anchored satisfactorily on the surface of SCN through bridging action of the phytic acid ligands.…”

“…The peaks observed at 284.8 eV originate from the presence of adventitious C, which serves as a reference for charging effects. The distinctive peak at the binding energy of 286.6 eV can be corresponded to sp 2 -hybridized carbon (C–NH x group; x = 1 or 2) located at the edges of aromatic units . The peak detected at 288.1 eV on the surface of the SCN can be attributed to sp 2 -bonded carbon (i.e., N–CN, C–(N) 2 ), and it shifts to a higher binding energy (288.4 eV) in the presence of 15% CuPA/SCN. − It can be inferred that CuPA was successfully anchored on the surface of the SCN.…”

Photocatalytic Degradation of Acetaminophen in Aqueous Environments: A Mini Review

“…Consequently, it is crucial to develop wastewater treatment technologies that exhibit low energy consumption, high removal efficiency, and wide applicability to effectively address these issues. As for ACT and its metabolites, extensive research has been carried out to address their removal from wastewater [9]. However, it is reported that conventional wastewater treatment technologies, including activated sludge, biodegradation, ozonation, and filtration, in wastewater treatment plants (WWTPs) are still far from satisfactory concerning the removal of ACT [10][11][12].…”