Analysis of Tetracycline Modification Based on g-C3N4 Photocatalytic Degradation DOI Creative Commons
Jinghang Li, Qi Shi, Chaoyu Song

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(3), P. 77 - 77

Published: March 7, 2025

To address challenges in antibiotic wastewater treatment, we synthesized a series of graphitic carbon nitride (g-C3N4)-based photocatalysts (BCN, PCN, TCN, BTCN, and TCNE-modified PTCN) via defect engineering. TCNE modification disrupted the triazine ring-bridging amino network PTCN, forming porous structure with enhanced specific surface area validated by SEM/TEM while retaining graphene-like framework confirmed XRD/FTIR. Photoluminescence (PL) analysis revealed prolonged photogenerated carrier lifetime improved separation efficiency achieving 89.10% degradation chlortetracycline hydrochloride under visible light—1.65-fold higher than pristine g-C3N4. Mechanistic studies identified superoxide radicals (•O2−) as dominant active species, generated O2 activation at sites efficient electron-hole utilization. Optimized conditions enabled PTCN to maintain high activity across broad pH range retain 82.59% after five cycles. This work advances defect-engineered photocatalyst design for adaptable, high-performance degradation, offering practical insights remediation.

Language: Английский

Analysis of Tetracycline Modification Based on g-C3N4 Photocatalytic Degradation DOI Creative Commons
Jinghang Li, Qi Shi, Chaoyu Song

et al.

Inorganics, Journal Year: 2025, Volume and Issue: 13(3), P. 77 - 77

Published: March 7, 2025

To address challenges in antibiotic wastewater treatment, we synthesized a series of graphitic carbon nitride (g-C3N4)-based photocatalysts (BCN, PCN, TCN, BTCN, and TCNE-modified PTCN) via defect engineering. TCNE modification disrupted the triazine ring-bridging amino network PTCN, forming porous structure with enhanced specific surface area validated by SEM/TEM while retaining graphene-like framework confirmed XRD/FTIR. Photoluminescence (PL) analysis revealed prolonged photogenerated carrier lifetime improved separation efficiency achieving 89.10% degradation chlortetracycline hydrochloride under visible light—1.65-fold higher than pristine g-C3N4. Mechanistic studies identified superoxide radicals (•O2−) as dominant active species, generated O2 activation at sites efficient electron-hole utilization. Optimized conditions enabled PTCN to maintain high activity across broad pH range retain 82.59% after five cycles. This work advances defect-engineered photocatalyst design for adaptable, high-performance degradation, offering practical insights remediation.

Language: Английский

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