The efficient removal of organic pollutants using singlet oxygen (O) represents a pivotal advancement in environmental purification. Despite its potential, the controlled generation of O remains a challenging endeavor. In this study, we present a novel approach whereby methyl/methylene are utilized to modulate the production of O by tungsten trioxide (WO), thereby enhancing the photocatalytic degradation of persistent pollutants through deep oxidation. Employing a dodecyltrimethylammonium bromide (DTAB)-assisted hydrothermal synthesis, we successfully fabricated WO capable of generating O. This modified WO demonstrates superior performance in the photocatalytic degradation of chloroquine phosphate by facilitating the rapid separation of photo-generated electron-hole pairs, thereby accelerating the degradation process. Furthermore, WO augmented with O exhibits enhanced efficacy in decomposing other challenging organic contaminants, compared to its untreated counterpart. Our findings not only contribute to the advancement of photocatalytic design principles centered on O but also underscore the critical role of controlled O production in the effective eradication of pollutants.

中文翻译：

---

表面甲基/亚甲基调节WO3定向活化分子氧成单线态氧去除水中有机污染物

利用单线态氧 (O) 有效去除有机污染物代表了环境净化的关键进步。尽管具有潜力，但控制 O 的生成仍然是一项具有挑战性的工作。在这项研究中，我们提出了一种新方法，利用甲基/亚甲基来调节三氧化钨（WO）产生O，从而通过深度氧化增强持久性污染物的光催化降解。采用十二烷基三甲基溴化铵（DTAB）辅助水热合成，我们成功制备了能够产生O的WO。这种修饰的WO通过促进光生电子-空穴对的快速分离，从而在磷酸氯喹的光催化降解中表现出优异的性能，从而加速降解过程。此外，与未经处理的对应物相比，添加 O 的 WO 在分解其他具有挑战性的有机污染物方面表现出增强的功效。我们的研究结果不仅有助于推进以 O 为中心的光催化设计原理，而且还强调了受控 O 产生在有效消除污染物中的关键作用。