2024年8月13日，Elsevier 旗下top期刊《Chemical Engineering Journal》在线发表了云南师范大学化学与化工学院高端引进人才、特聘教授赵学博士、武汉大学张海波教授、浙江海洋大学周英堂教授等团队合作的最新研究成果《Curvature strain tunes electron transfer accelerates peroxymonosulfate activation to achieve high-efficiency advanced oxidation》。第一作者单位为云南师范大学化学化工学院，云南师范大学化学化工学院赵学、武汉大学化学化工学院张海波教授、东北林业大学化学化工与资源利用学院徐明教授、浙江海洋大学周英堂教授为共同通讯作者。

Abstract

The development of high performance and stable heterogeneous catalysts is conducive to promoting the advanced oxidation process (AOPs) to promote the degradation of organic pollutants efficiently, low-cost and environmentally friendly. Here nitrogen-doped hollow carbon spheres (NHCSs) and rigid organic molecule were used to create space confinement and complexation confinement conditions, respectively, and an advanced single-atom catalyst capable of strongly activating peroxymonosulfate (PMS) to degrade organic pollutants was finally constructed. The AOPs system driven by CoNC/NHCSs (20 mg) combined with PMS (20 mg) can degrade nearly 100 % of 20 mg/L (100 mL) bisphenol A (BPA, a microplastic) pollutant within 30 min, and the mineralization rate is up to 70.5 %. Face the complex water environment, such as sewage containing coexisting anions and cations, or acidic or alkaline sewage, the CoNC/NHCSs/PMS system still has high catalytic stability, and universality for other organic pollutants. The filter column with CoNC/NHCSs as the core also realizes the continuous purification of organic pollutants, which shortens the distance between laboratory research and practical application. Radical quenching and electron paramagnetic resonance techniques confirmed that CoNC/NHCSs activated PMS to SO4·−, ·OH, and 1O2, and these reactive oxygen species combined to eliminate organic pollutants. Density functional theory (DFT) calculations jointly confirm that the strong activation of PMS by CoNC/NHCSs is the key to achieving efficient degradation of organic pollutants, and the activity of CoNC/NHCSs is derived from high exposure rate of active sites and curvature effect caused by structural bending.

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