Preparation of Cl-Doped g-C3N4 Photocatalyst and Its Photocatalytic Degradation of Rhodamine B DOI Creative Commons
Jing Zhang,

Lixia Wang,

Yang Li

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(9), P. 1910 - 1910

Published: April 25, 2025

The increasing global demand for clean water is driving the development of advanced wastewater treatment technologies. Graphitic carbon nitride (g-C3N4) has emerged as an efficient photocatalyst degrading organic pollutants, such synthetic dyes, due to its exceptional thermo-chemical stability. However, application limited by insufficient specific surface area, low photocatalytic efficiency, and unclear degradation mechanism. In this study, we aimed enhance g-C3N4 doping it with elemental chlorine, resulting in a series Cl-C3N4 photocatalysts varying ratios, prepared via thermal polymerization. activity was assessed measuring rate RhB. A comprehensive characterization composites conducted using SEM, XRD, XPS, PL, DRS, BET, EPR, electrochemical measurements. Our results indicated that optimized 1:2 exhibited performance, achieving 99.93% RhB removal within 80 min irradiation. TOC mineralization reached 91.73% after 150 min, 88.12% antibiotics maintained four cycles, demonstrating excellent stability photocatalyst. Mechanistic investigations revealed superoxide radicals (·O2−) singlet oxygen (1O2) were primary reactive species responsible chlorine-doped system.

Language: Английский

Preparation of Cl-Doped g-C3N4 Photocatalyst and Its Photocatalytic Degradation of Rhodamine B DOI Creative Commons
Jing Zhang,

Lixia Wang,

Yang Li

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(9), P. 1910 - 1910

Published: April 25, 2025

The increasing global demand for clean water is driving the development of advanced wastewater treatment technologies. Graphitic carbon nitride (g-C3N4) has emerged as an efficient photocatalyst degrading organic pollutants, such synthetic dyes, due to its exceptional thermo-chemical stability. However, application limited by insufficient specific surface area, low photocatalytic efficiency, and unclear degradation mechanism. In this study, we aimed enhance g-C3N4 doping it with elemental chlorine, resulting in a series Cl-C3N4 photocatalysts varying ratios, prepared via thermal polymerization. activity was assessed measuring rate RhB. A comprehensive characterization composites conducted using SEM, XRD, XPS, PL, DRS, BET, EPR, electrochemical measurements. Our results indicated that optimized 1:2 exhibited performance, achieving 99.93% RhB removal within 80 min irradiation. TOC mineralization reached 91.73% after 150 min, 88.12% antibiotics maintained four cycles, demonstrating excellent stability photocatalyst. Mechanistic investigations revealed superoxide radicals (·O2−) singlet oxygen (1O2) were primary reactive species responsible chlorine-doped system.

Language: Английский

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