Cyano and potassium-rich g-C3N4 hollow tubes for efficient visible-light-driven hydrogen evolution

Abstract

Novel K⁺ and cyano group decorated g-C₃N₄ hollow tubes (T-CN) were designed and constructed via a facile molten salt route. Notably, the T-CN exhibited an excellent photocatalytic hydrogen evolution efficiency ascribed to the large surface area, efficient visible light absorption, and fast charge transfer and separation.