Perylene diimide (PDI) anchored graphene three-dimensional (3D) structure was constructed via a simple electrodeposition-impregnation strategy. The photoelectrochemical catalysis removal rate is 8.2 or 4.5 times that of the only photo- or electro- catalysis. In dynamic degradation, the methylene blue removal ratio is 88.5 % for PDI/rGO catalyst, much higher than pure PDI (56.3 %). The stability is very high, and the activity did not decrease over 55 h. The enhanced photoelectrochemical degradation ability is mainly attributed to the π-π interaction between PDI and rGO. PDI nanorods as photocatalytic building blocks are anchored uniformly on the surface of 3D graphene via π-π stacking. The promoted separation and mobility of carriers are related to the extended electron delocalization along the π-π stacking direction. Besides, the 3D structure with a high BET area (176 m²/g) enables the adsorption-enrichment capability and possesses the advantage of separation free and high stability.

a二酰亚胺（PDI）锚固的石墨烯三维（3D）结构是通过简单的电沉积-浸渍策略构建的。光电化学催化去除率是仅有的光催化或电催化去除率的8.2或4.5倍。在动态降解中，PDI / rGO催化剂的亚甲基蓝去除率为88.5％，远高于纯PDI（56.3％）。稳定性非常高，并且活性在55小时内没有降低。增强的光电化学降解能力主要归因于PDI和rGO之间的π-π相互作用。通过π-π堆叠将作为光催化构件的PDI纳米棒均匀地锚固在3D石墨烯的表面上。载流子的分离和迁移率的提高与沿π-π堆叠方向扩展的电子离域作用有关。除了，² / g）具有吸附富集能力，具有无分离，稳定性高的优点。