Work

Photogenerated carrier-directed modulation of WO3/Bi2WO6 Z-scheme heterojunction for marine anti-corrosion and anti-fouling

Year: 2025

Type: article

Abstract: Metal corrosion and biofouling in marine environments significantly constrain the long-term service performance of marine equipment. Traditional protection strategies suffer from issues such as low efficiency and insufficient environmental friendliness, necessitating the development of novel, highly efficient, and stable anti-corrosion and anti-fouling materials. In this study, a dual-functional WO 3 /Bi 2 WO 6 Z-scheme heterojunction photoelectrode was fabricated via a two-step hydrothermal method. The results of UV–visible diffuse reflectance, Mott-Schottky, as well as density functional theory calculations confirmed the successful construction of the Z-type heterojunction. The construction of the Z-scheme heterojunction not only enhances the separation efficiency of photogenerated charge carriers but also directionally regulates their migration pathway, preserving photogenerated electrons with strong reducing capability and photogenerated holes with strong oxidizing capability, therefore, the potential of 316L stainless steel could be negatively shifted by 200 mV, while the sterilization rate of Pseudomonas aeruginosa reached 100% within 60 min.

Source: npj Materials Degradation

DOI: 10.1038/s41529-025-00707-2

Authors: Jing Tian, Yuanhang Cheng, Zhenyu Zhang, Zhibo Zhao, Zhenxu Xu, Jiarun Li

Institution: Qingdao University of Science and Technology

Language: English

Topic: Advanced Photocatalysis Techniques

Subfield: Renewable Energy, Sustainability and the Environment

Field: Energy

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: gold

Estimated APC paid: $2,590