Preparation of carbonaceous catalysts by doping with boron (B) is one of the most promising strategies for substitution of toxic transition metal catalysts in advanced oxidation processes. This study was dedicated to reveal the intrinsic structure-performance relationship of peroxomonosulfate (PMS) activation by B-doped carbon nanotubes toward catalytic oxidation of pollutants. Performance tests showed the catalyst realized more than 95% phenol removal at pH 7 in 1 h and 69.4% total organic carbon removal. The catalysts were characterized using scanning electron microscopy (SEM), transmission electron microscope (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR). Characterization results indicated that the topography of carbon nanotube was not significantly changed after B doped, while the defect sites increased from 1.05 to 1.23. The newly formed active sites may be presented in the form of C₃B, CBO₂ and CBO₃, and reactive oxygen species (ROS) including OH, SO₄^−•, O₂^−• and ¹O₂ might be generated after activation by the active sites. Furthermore, B-MWNT-PMS∗ was also be detected by In-situ Raman, confirming the non-radical pathway and electron transfer mechanism. Beside of phenol, the reaction system of B-MWNT/PMS also can remove methylene blue, bisphenol S and diuron at pH = 7, confirming the universality and promising of this advanced oxidation technology.

通过掺杂硼（B）制备碳质催化剂是在高级氧化工艺中替代有毒过渡金属催化剂的最有希望的策略之一。这项研究致力于揭示B掺杂碳纳米管活化过氧单硫酸盐（PMS）对污染物催化氧化的内在结构与性能之间的关系。性能测试表明，该催化剂在1小时内于pH 7下实现了95％以上的苯酚去除和69.4％的总有机碳去除。使用扫描电子显微镜（SEM），透射电子显微镜（TEM），拉曼光谱，X射线光电子能谱（XPS）和电子顺磁共振（EPR）对催化剂进行了表征。表征结果表明，掺杂B后，碳纳米管的形貌没有明显改变，缺陷部位从1.05增加到1.23。新形成的活动位点可以以C的形式表示₃ B，CBO ₂和CBO ₃以及包括OH，SO _4- ^•，O _2- ^•和¹ O _2的活性氧（ROS）在被活性位激活后可能会生成。此外，原位拉曼还检测了B-MWNT-PMS *，证实了非自由基途径和电子转移机理。除苯酚外，B-MWNT / PMS的反应体系还可以在pH = 7的条件下去除亚甲基蓝，双酚S和二ur，这证实了这种先进氧化技术的普遍性和前景。