The dimensionality of materials plays an important role in the photocatalytic applications. Herein, we report a novel photocatalyst by implanting zero-dimensional carbon quantum dots (CQDs) within one-dimensional porous tubular graphitic carbon nitride (g-C₃N₄) on carbon cloth (CC). The degradation of ciprofloxacin under visible light irradiation can be 98% obtained within 60 min by the photocatalyst (g-C₃N₄/CQD/CC), due to the improvement of light absorption and reduction of rapid recombination of photogenerated carriers of the g-C₃N₄/CQD micro-regional heterojunction. In addition, density functional theory (DFT) calculation and a set of characterisation were applied to study the influence of implanted CQDs on the band gap and charge behavior of g-C₃N₄/CQD/CC. Moreover, a novel multilayer photocatalytic reactor was designed to simulate the degradation capability of g-C₃N₄/CQD/CC by flowing wastewater, which exhibits excellent photocatalysis performance. The introduction of a CC substrate can improve the separation and cycle life of this new photocatalyst.

材料的尺寸在光催化应用中起重要作用。在本文中，我们通过在碳布（CC）上将零维碳量子点（CQD）植入一维多孔管状石墨碳氮化物（gC ₃ N ₄）中来报道一种新型的光催化剂。由于光吸收的改善和gC ₃ N的光生载流子的快速重组的减少，光催化剂（gC ₃ N ₄ / CQD / CC）在60分钟内可以在可见光照射下降解环丙沙星98％。₄/ CQD微区域异质结。此外，应用密度泛函理论（DFT）计算和一组表征研究了注入的CQD对gC ₃ N ₄ / CQD / CC的带隙和电荷行为的影响。此外，设计了新型的多层光催化反应器，模拟了流动的废水对gC ₃ N ₄ / CQD / CC的降解能力，表现出优异的光催化性能。CC底物的引入可以改善这种新型光催化剂的分离度和循环寿命。