Alkali‐Assisted Synthesis of Nitrogen Deficient Graphitic Carbon Nitride with Tunable Band Structures for Efficient Visible‐Light‐Driven Hydrogen Evolution

作者：Huijun Yu, Run Shi, Yunxuan Zhao, Tong Bian, Yufei Zhao, Chao Zhou, Geoffrey I. N. Waterhouse, Li‐Zhu Wu, Chen‐Ho Tung, Tierui Zhang · 发表于：Advanced Materials · 年份：2017 · DOI：10.1002/adma.201605148 · 被引用次数：2262 · 研究领域：Advanced Photocatalysis Techniques、Advanced Nanomaterials in Catalysis、Advanced biosensing and bioanalysis techniques

A facile synthetic strategy for nitrogen-deficient graphitic carbon nitride (g-C3Nx) is established, involving a simple alkali-assisted thermal polymerization of urea, melamine, or thiourea. In situ introduced nitrogen vacancies significantly redshift the absorption edge of g-C3Nx, with the defect concentration depending on the alkali to nitrogen precursor ratio. The g-C3Nx products show superior visible-light photocatalytic performance compared to pristine g-C3N4.