Both piezoelectricity and self-Fenton catalysis are effective ways to degrade water pollution, but little research has combined them to construct a more efficient water pollution treatment method. Here, a Fe-doped SnS₂ (Sn_1-xFe_xS₂) piezoelectric self-Fenton system was constructed, which shows superior water treatment performance. The best piezoelectric properties of the Sn_0.97Fe_0.03S₂ system were verified by degrading rhodamine B (RhB). The toxicity analysis of degradation intermediates and solutions confirmed that the toxicity of RhB decreased after degradation. In addition, Kelvin probe force microscopy and photoelectrochemical analysis confirmed the better piezoelectric properties of Sn_0.97Fe_0.03S₂. It has demonstrated the enhancement of systematic piezoelectricity by Fe lattice defects and the formation of self-Fenton by Fe as an active center in the degradation of RhB. In this work, an efficient piezoelectric and self-Fenton technology is constructed to remove organic pollutants from water, which is significant for developing water treatment technology.

压电和自芬顿催化都是降解水污染的有效方法，但很少有研究将它们结合起来构建更有效的水污染处理方法。在此，构建了Fe掺杂SnS ₂ (Sn _1-x Fe _x S ₂ )压电自芬顿系统，该系统表现出优异的水处理性能。通过降解罗丹明B（RhB）验证了Sn _0.97 Fe _0.03 S ₂体系的最佳压电性能。降解中间体和溶液的毒性分析证实，降解后RhB的毒性降低。此外，开尔文探针力显微镜和光电化学分析证实了Sn _0.97 Fe _0.03 S ₂具有更好的压电性能。证明了Fe晶格缺陷增强了系统压电性，并在RhB降解过程中Fe作为活性中心形成了自芬顿。这项工作构建了一种高效的压电和自芬顿技术来去除水中的有机污染物，这对于发展水处理技术具有重要意义。