biostudies-literatureUnknown9(6)Cao YDesigning a highly active and stable photocatalyst to directly solve environmental pollution is desirable for solar energy conversion. Herein, an effective strategy, hydrothermal-calcination, for synthesizing extremely active carbon nitride (salmon pink) from a low-cost precursor melamine, is reported. The salmon pink carbon nitride with tube-shaped structure significantly enhanced response to visible light, improved efficiency of charge separation and remarkably enhanced efficiency of methyl orange (MO) degradation than bulk g-C<sub>3</sub>N<sub>4</sub> (light orange). The M-10-200-24-600 composite possessed the most wonderful ability towards MO degradation irradiated by visible light, which could achieve a highest degradation efficiency of 84% within 120 min. Our findings may provide a pRSC advances3396-3402https://www.ebi.ac.uk/biostudies/studies/S-EPMC9060291biostudies-literatureTemplate-free synthesis of salmon pink tube-shaped structure carbon nitride with enhanced visible light photocatalytic activity.PMC9060291Jing XKang WWang SCao YChen YWang WfalseTemplate-free synthesis of salmon pink tube-shaped structure carbon nitride with enhanced visible light photocatalytic activity.Designing a highly active and stable photocatalyst to directly solve environmental pollution is desirable for solar energy conversion. Herein, an effective strategy, hydrothermal-calcination, for synthesizing extremely active carbon nitride (salmon pink) from a low-cost precursor melamine, is reported. The salmon pink carbon nitride with tube-shaped structure significantly enhanced response to visible light, improved efficiency of charge separation and remarkably enhanced efficiency of methyl orange (MO) degradation than bulk g-C<sub>3</sub>N<sub>4</sub> (light orange). The M-10-200-24-600 composite possessed the most wonderful ability towards MO degradation irradiated by visible light, which could achieve a highest degradation efficiency of 84% within 120 min. Our findings may provide a p2019-01-01T00:00:00Z2019 Jan2025-04-27T01:04:51.448Z2025-04-06T18:03:35.782ZS-EPMC90602913551894910.1039/c8ra09950b