Photocatalytic degradation of cephalexin by g-C₃N₄/Zn doped Fe₃O₄ under visible light

Tuning Band Gap in Fe-Doped g-C3N4by Zn for Enhanced Fenton-Like Catalytic Performance

“…Antibiotics have brought benefits for the prevention and treatment of human and animal diseases, but have also caused serious pollution of the environment. , Tetracycline hydrochloride (TC), as a broad-spectrum antibiotic, is widely used to treat bacterial infections in humans and animals. Because of the excellent water solubility and difficulty in degradation by organisms, TC is often detected in water bodies.…”

Fe2.5Co0.3Zn0.2O4/CuCr-LDH as a visible-light-responsive photocatalyst for the degradation of caffeine, bisphenol A, and simazine in pure water and real wastewater under photo-Fenton-like degradation process

“…Moreover, the spectrum corresponding to Co 2p1/2, Co 2p3/2 revealed the presence of Co (II) (781.53 eV and 796.71 eV) and Co (III) (780.6 eV) on the surface of the composite (Chen et al, 2014). The existence of Zn 2p3/2 and Zn 2p1/2 were affirmed with the binding energies at 1019.99 eV and 1040.57 eV (Nguyen et al, 2021), respectively. Furthermore, considering the HRXPS peak related to Cu 2p, the signals of Cu (II) was observed at 954.63 eV (Liu et al, 2016;Wu et al, 2006).…”

“…S4, the composite of Fe2.5Co0.3Zn0.2O4 nanoparticles with the CuCr-LDH enhanced the visible light absorption capacity. In conclusion, the effective light-absorbing capability of the composite could be aroused from two main facts: (I) the promoted photocatalytic efficiency of magnetite by doping Zn and Co metal ions to its structure, and (II) the inherent visible light absorption ability of CuCr-LDH compared to the magnetite nanoparticles could narrow the bandgap and raise the optical response of the final composite (Nguyen et al, 2021). The bandgap energies were estimated using the Kubelka-Monk formula and Tauc's plot (Rad et al, 2018).…”

Metalloporphyrin modified defective TiO2 porous cages with the enhanced photocatalytic activity for coupling of hydrogen generation and tetracycline removal

“…[5][6][7][8][9][10][11][12] Photodegradation is generally the most effective and economical method for the removal of organic pollutants from the environment. [13][14][15][16] Generally, in the redox process, organic pollutants are oxidized into CO 2 , H 2 O and other fragments by accepting holes from photocatalysts or donating electrons to hydroxyl radicals; oxygen molecules that receive electrons from photocatalysts are reduced into superoxide radicals that are able to react with water molecules to produce hydroxyl radicals. [17][18][19] However, instead of the traditional redox process, if the half-reaction of oxygen reduction is replaced by solar-to-fuel conversion, it is possible to achieve the simultaneous occurrence of solar fuel synthesis and organic pollutant degradation in the same photocatalytic system.…”