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- W4387139676 abstract "Abstract In this research, the photocatalytic degradation of CIP from aqueous solutions using CQD decorated on N-Cu co-doped titania (NCuTCQD) was made during two synthesis steps by sol–gel and hydrothermal methods. The fabricated catalysts were analyzed using various techniques, including XRD, FT-IR, BET, FESEM, EDX, and DRS. The results showed that N and Cu atoms were doped on TiO 2 and CQD was well deposited on NCuT. The investigation of effective operational parameters demonstrated that the complete removal of ciprofloxacin (CIP: 20 mg/L) could be achieved at pH 7.0, NCuTCQD 4wt% : 0.8 g/L, and light intensity: 100 mW/cm 2 over 60 min reaction time. The O 2 •– and OH˙ radicals were identified as the primary reactive species during the decontamination process. The synthesized photocatalyst could be recycled after six consecutive cycles of CIP decomposition with an insignificant decrease in performance. Pharmaceutical wastewater was treated through the optimum degradation conditions which showed the photocatalytic degradation eliminated 89% of COD and 75% of TOC within 180 min. In the effluent toxicity evaluation, the EC 50 values for treated and untreated pharmaceutical wastewater increased from 62.50% to 140%, indicating that the NCuTCQD 4wt% /Vis system can effectively reduce the toxic effects of pharmaceutical wastewater on aquatic environments." @default.
- W4387139676 created "2023-09-29" @default.
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- W4387139676 date "2023-09-28" @default.
- W4387139676 modified "2023-10-16" @default.
- W4387139676 title "Fabrication of new composite NCuTiO2/CQD for photocatalytic degradation of ciprofloxacin and pharmaceutical wastewater treatment: degradation pathway, toxicity assessment" @default.
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- W4387139676 doi "https://doi.org/10.1038/s41598-023-42922-4" @default.
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