农药已成为现代农业实践的一个组成部分,但是它们的广泛使用对人类健康构成了重大威胁。因此,迫切需要开发检测食品和环境样品中农药的有效方法。传统的色谱办法和普通的疾速检测办法不克不及知足精确性,便携性,储存时间长,和溶液的稳定性在同一时间。近年来,光电化学(PEC)传感技术作为一种有前途的检测各种农药的方法,由于其突出的优势而受到关注,包括高灵敏度,低成本,操作简单,快速反应,易于小型化,从而成为实时和现场监测农药水平的有竞争力的候选人。这篇综述概述了PEC农药检测方法的最新进展及其在确保食品和环境安全方面的应用。重点关注光敏材料的类别,从单个半导体到半导体-半导体异质结,和PEC传感平台的信号机制,包括农药的氧化,空间位阻,牺牲剂的产生/减少,和光敏材料的引入/释放。此外,这次审查将提供对未来前景和对抗的见解,从而为这个不断发展的领域贡献了新的观点。
Pesticides have become an integral part of modern agricultural practices, but their widespread use poses a significant threat to human health. As such, there is a pressing need to develop effective methods for detecting pesticides in food and environmental samples. Traditional chromatography methods and common rapid detection methods cannot satisfy accuracy, portability, long storage time, and solution stability at the same time. In recent years, photoelectrochemical (PEC) sensing technology has gained attention as a promising approach for detecting various pesticides due to its salient advantages, including high sensitivity, low cost, simple operation, fast response, and easy miniaturization, thus becoming a competitive candidate for real-time and on-site monitoring of pesticide levels. This review provides an overview of the recent advancements in PEC methods for pesticide detection and their applications in ensuring food and environmental safety, with a focus on the categories of photoactive materials, from single semiconductor to semiconductor-semiconductor heterojunction, and signaling mechanisms of PEC sensing platforms, including oxidation of pesticides, steric hindrance, generation/decrease in sacrificial agents, and introduction/release of photoactive materials. Additionally, this review will offer insights into future prospects and confrontations, thereby contributing novel perspectives to this evolving domain.