Metallic Ni bridged [email protected] carbon nitride hybrids were for the first time fabricated through a one-pot electroless-assisted hydrothermal method. The intimate Ni bridge between the interface of mesoporous carbon nitride and NiS was confirmed by HRTEM and in-depth XPS analysis using an Ar⁺-cluster sputtering gun and a possible mechanism was put forward to elucidate the formation process of the unique structure. Without adding any noble metals as cocatalysts, the optimized catalyst 10% NiS/m-CN-160-12 showed a H₂ evolution rate of 1419 μmol·g⁻¹·h⁻¹, which is about 34 and 14 fold higher than that of bare mesoporous carbon nitride and NiS, respectively. The dramatically enhanced photocatalytic performance was mainly ascribed to the synergistic effect of NiS cocatalyst loading and the formation of metallic Ni between the interface of mesoporous carbon nitride and NiS, which served as a charge-transfer bridge to facilitate the transfer and separation of photo-induced electron-hole pairs.

首次通过单锅无电辅助水热法制备了金属Ni桥[受电子邮件保护的]氮化碳杂化物。HRTEM证实了介孔碳氮化物与NiS界面之间紧密的Ni桥，并使用Ar ^+-簇溅射枪对XPS进行了深入分析，并提出了可能的机制来阐明独特结构的形成过程。在不添加任何贵金属作为助催化剂的情况下，优化的催化剂10％NiS / m-CN-160-12的H ₂析出速率为1419μmol ·g ^-1 ·h ^-1分别比裸露的中孔氮化碳和NiS高34倍和14倍。大大提高的光催化性能主要归因于NiS助催化剂负载和介孔氮化碳与NiS界面之间金属Ni的形成的协同作用，这充当电荷转移桥以促进光致转移和分离。电子-空穴对。