ABSTRACT

Combining photocatalytic and superhydrophobicity characteristics on the same surface remains a challenge. In this work it was overcome that challenge by fabricated Ag/Fe₂O₃/ZnO heterostructure surfaces via using a simple precipitation method; stearic acid (SA) was then employed to improve the roughness and increase the water contact angles (WCA) of the surfaces. The effects of SA and Ag/Fe₂O₃ on superhydrophobicity and photocatalytic characteristics were investigated. The wettability measurements confirmed that the WCA of the surfaces increased from 60 ± 2° to 154 ± 2° after modification with SA due to the formation of a hierarchical structure. To evaluate the photocatalytic performance of samples, methylene blue (MB) dye was irradiated under visible light with quick photodecomposition of MB after 80 min of irradiation. Finally, this innovative approach can be utilized to develop scaled-up self-cleaning applications.

摘要

在同一表面上结合光催化和超疏水特性仍然是一个挑战。在这项工作中，通过使用简单的沉淀方法制造的 Ag/Fe ₂ O ₃ /ZnO 异质结构表面克服了这一挑战；然后使用硬脂酸 (SA) 来改善粗糙度并增加表面的水接触角 (WCA)。SA和Ag/Fe ₂ O _{3 的影响}研究了超疏水性和光催化特性。润湿性测量证实，由于分层结构的形成，在用 SA 改性后表面的 WCA 从 60±2° 增加到 154±2°。为了评估样品的光催化性能，在可见光下照射亚甲蓝 (MB) 染料，照射 80 分钟后 MB 快速光分解。最后，这种创新方法可用于开发扩大规模的自清洁应用。