A novel photoelectrode system based on one-dimensional g-C₃N₄ porous nanofibers (1D-p-g-C₃N₄) heterostructured with 2D-RGO was fabricated by hydrogen bonding self-assembly technology in combination with heat treatment and electrodeposition process. Ascribed to the one-dimensional porous morphology of g-C₃N₄ and its heterojunction with RGO, the separation efficiency of the photoinduced electrons and holes was dramatically enhanced, leading to its superior PEC cathodic protection performance for 304 stainless steel. Under visible light illumination, the 1D/2D p-g-C₃N₄@RGO photoelectrode exhibited a photoinduced current density of 10.1 μA cm⁻² and a photoinduced polarized potential of − 480 mV, which is 6 and 2.5 times that of g-C₃N₄, respectively.

结合氢键自组装技术，结合热处理和电沉积工艺，建立了基于二维二维RGO异质结构的一维gC ₃ N ₄多孔纳米纤维（1D-pgC ₃ N ₄）的新型光电极系统。归因于gC ₃ N ₄的一维多孔形态及其与RGO的异质结，光致电子和空穴的分离效率得到了显着提高，从而使其对304不锈钢具有优异的PEC阴极保护性能。在可见光照明下，1D / 2D pgC ₃ N ₄RGO光电极表现出10.1μAcm ^-2的光致电流密度和-480mV的光致极化电势，分别是gC ₃ N _4的6倍和2.5倍。