A facile approach was developed to construct Fe₂O₃-modified ZnO micro/nanostructures with excellent superhydrophobicity and photocatalytic activities. The effects of stearic acid (SA) and Fe₂O₃ on the morphological characteristics, water contact angle (WCA), and photocatalytic degradation were investigated. Superhydrophobicity results showed that WCA increased from 144° ± 2° to 154° ± 2° when the weight of SA increased from 5 to 20 mg because of the formation of a hierarchical or rough structure. Furthermore, Fe₂O₃-modified ZnO micro/nanostructure surfaces before and after SA treatment (20 mg) were chosen to evaluate the photodegradation of methylene blue (MB) dye under the support of visible light. MB degraded after 80 min of irradiation, and its photodegradation efficiencies were 91.5% at the superhydrophobic state and 92% at the hydrophilic state. This improvement in photocatalytic activity at both states might be attributed to an increase in surface area and improvement in charge carrier separation.

开发了一种简便的方法来构建具有优异超疏水性和光催化活性的Fe ₂ O ₃修饰的 ZnO 微/纳米结构。研究了硬脂酸 (SA) 和 Fe ₂ O ₃对形态特征、水接触角 (WCA) 和光催化降解的影响。超疏水性结果表明，当SA的重量从5mg增加到20mg时，由于形成了分层或粗糙结构，WCA从144°±2°增加到154°±2°。此外，Fe ₂ O ₃选择在 SA 处理之前和之后 (20 mg) 改性的 ZnO 微/纳米结构表面来评估亚甲蓝 (MB) 染料在可见光支持下的光降解。MB 在照射 80 分钟后降解，其光降解效率在超疏水状态下为 91.5%，在亲水状态下为 92%。两种状态下光催化活性的这种改进可能归因于表面积的增加和电荷载流子分离的改进。