Surface-etched and N₂-annealed stainless-steel mesh (NESS) was fabricated by a chemical etching and annealing treatment under a nitrogen atmosphere of a cheap stainless-steel mesh, and employed to degrade organic pollutants via peroxymonosulfate (PMS) activation. Extensive characterization showed that surface modification could bring about phase change and metal layer generation with a thickness of several nanometers. Excellent electron conductivity and the favorable morphology with coexisting Fe, Ni, and Cr species in NESS make an effective electron transfer between catalysts and PMS. The as-prepared NESS itself can induce the PMS activation, and oxygen vacancies can strengthen chemical bonding with PMS, providing active sites to activate PMS. As a result, NESS possessed a superior activity in PMS activation for mineralization of organic compounds. Electron paramagnetic resonance and quenching experiments demonstrated $\text{S}{\text{O}}_4^{•-}$, $H{O}^{•}$, $O_2^{•-}$ and ¹O₂ were the dominant reactive species. Considering the procedure simplicity, NESS is an effective and low-cost catalyst for environmental applications.

表面蚀刻和N ₂退火不锈钢网（NESS）是在便宜的不锈钢网的氮气氛下通过化学蚀刻和退火处理制成的，并用于通过过氧单硫酸盐（PMS）活化降解有机污染物。广泛的表征表明，表面改性可以引起相变并产生几纳米厚的金属层。NESS中优异的电子电导率和良好的形态以及Fe，Ni和Cr共存，使催化剂与PMS之间实现了有效的电子转移。所制备的NESS本身可以诱导PMS活化，氧空位可以增强与PMS的化学键合，从而提供活化PMS的活性位点。结果，NESS在PMS活化中具有使有机化合物矿化的优异活性。$\text{小号}{\text{Ø}}_4^{•-}$， $H{Ø}^{•}$， ${Ø}_2^{•-}$和¹ Ò ₂为优势的反应性物质。考虑到程序的简单性，NESS是一种有效且低成本的环保应用催化剂。