3D structured flower-like bismuth tungstate/magnetic-graphene nanoplates (Bi₂WO₆/mag-GNPs) composite was first synthetised for degradation of ciprofloxacin (CIP). The morphological properties of Bi₂WO₆/mag-GNPs were characterized by SEM, XRD and DRS. The results revealed the synthesized Bi₂WO₆/mag-GNPs had the enhanced photocatalytic activity because of the synergistic effects of Bi₂WO₆, graphene and Fe₃O₄. The photocatalytic degradation rate of Bi₂WO₆/mag-GNPs toward CIP was almost 6.0 times of mag-GNPs, 2.0 times and 1.7 times of Bi₂WO₆ and Bi₂WO₆/GNPs, respectively. Moreover, the Bi₂WO₆/mag-GNPs particles could be easily separated and recycled. The construction of Bi₂WO₆/mag-GNPs effectively resolved the separation of photocatalyst and improved the photocatalysis activity of Bi₂WO₆.

首先合成了3D结构的花状钨酸铋/磁性石墨烯纳米板（Bi ₂ WO ₆ / mag-GNPs）复合材料以降解环丙沙星（CIP）。通过SEM，XRD和DRS对Bi ₂ WO ₆ / mag-GNPs的形貌特征进行了表征。结果表明，由于Bi ₂ WO ₆，石墨烯和Fe ₃ O ₄的协同作用，合成的Bi ₂ WO ₆ / mag-GNPs具有增强的光催化活性。Bi ₂ WO ₆的光催化降解速率朝向CIP的/ mag-GNP分别约为mag-GNP的6.0倍，Bi ₂ WO ₆和Bi ₂ WO ₆ / GNP的2.0倍和1.7倍。此外，Bi ₂ WO ₆ / mag-GNPs颗粒可以很容易地分离和回收。Bi ₂ WO ₆ / mag-GNPs的构建有效地解决了光催化剂的分离，提高了Bi ₂ WO ₆的光催化活性。