Carbon nitride materials have achieved great accomplishments in solar-to-hydrogen energy conversion under visible light.However,the weak kinetics and rapid recombination of the photogenerated charge carriers result in...Carbon nitride materials have achieved great accomplishments in solar-to-hydrogen energy conversion under visible light.However,the weak kinetics and rapid recombination of the photogenerated charge carriers result in low photocatalytic efficiency,which hinders its practical utilization.Herein,terminal cyanamide groups were grafted on K^(+)-inserted crystalline carbon nitride(KCCN-cya)via a potassium-salt(KSCN and KOCN)-assisted one-step crystallization process.The cyanamide groups,which have high electron accepting ability,contribute to the formation of a built-in electric field(BIEF).展开更多
基金supported by the Natural Science Foundation of China(No.51874199,22078200,22102103)the grant from SZIIT(SZIIT2022KJ026)+1 种基金Guangdong Basic and Applied Basic Research Foundation(No.2019A1515111021,2021A1515010162)Shenzhen Innovation Program(No.JCYJ20170818142642395).
文摘Carbon nitride materials have achieved great accomplishments in solar-to-hydrogen energy conversion under visible light.However,the weak kinetics and rapid recombination of the photogenerated charge carriers result in low photocatalytic efficiency,which hinders its practical utilization.Herein,terminal cyanamide groups were grafted on K^(+)-inserted crystalline carbon nitride(KCCN-cya)via a potassium-salt(KSCN and KOCN)-assisted one-step crystallization process.The cyanamide groups,which have high electron accepting ability,contribute to the formation of a built-in electric field(BIEF).
