首页|Modulating pollutant adsorption and peroxymonosulfate activation sites on Co3O4@N,O doped-carbon shell for boosting catalytic degradation activity

Modulating pollutant adsorption and peroxymonosulfate activation sites on Co3O4@N,O doped-carbon shell for boosting catalytic degradation activity

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The construction of double active sites for pollutant adsorption and peroxymonosulfate(PMS)activation on the surface of catalyst is conducive to further enhancing the pollutant-removing effect.Herein,a N,O co-doped carbon-encapsulated tricobalt tetraoxide(Co3O4@N,O-C)with double active sites is prepared by a one-step laser carbonization method.The optimized Co3O4@N,O-C shows excellent tetracycline(TC)removal ability,in which the k value reaches 0.608 min-1.On the surface of Co3O4@N,O-C,TC is adsorbed to the N site,and PMS is activated at the O site.Building double active sites on the catalyst surface not only avoids competition for the active site,but also confines the pollutant molecules to the surface of the catalyst,thus shortening the migration distance between reactive oxygen species(ROS)and the pollutant and boosting the removal efficiency of pol-lutants.In addition,the Co3O4@N,O-C/PMS system exhibits both good resistance to environmental interference and cyclic stability.Finally,a practical continuous flow reactor based on Co3O4@N,O-C catalyst is built,which shows a stable and efficient TC degradation performance.

Heterogeneous catalysisN/O co-dopedDual active sitesAdvanced oxidation processesLaser carbonization

Ruiying Liu、Li Zhao、Baishan Liu、Jiayuan Yu、Yujie Wang、Wanqiang Yu、Di Xin、Chaoqiong Fang、Xuchuan Jiang、Riming Hu、Hong Liu、Weijia Zhou

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Institute for Advanced Interdisciplinary Research(iAIR),School of Chemistry and Chemical Engineering,University of Jinan,Jinan,250022,PR China

Zhejiang Viersin Advanced Materials Co.,Ltd,6 Donggang Road,Haiyan Economic Development Zone,PR China

School of Physics and Technology,University of Jinan,Jinan,250022,PR China

Institute for Smart Materials & Engineering,University of Jinan,Jinan,250022,PR China

State Key Laboratory of Crystal Materials,Shandong University,Jinan,250100,PR China

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National Natural Science Foundation of ChinaNatural Science Foundation of Shandong ProvinceScience and Technology Support Plan for Youth Innovation of Colleges and Universities of Shandong Province of China

52202092ZR2022QE0762023KJ104

2024

10.1016/j.cjsc.2024.100332

结构化学
中国化学会 中国科学院福建物质结构研究所

结构化学

影响因子：0.44
ISSN：0254-5861
年,卷(期)：2024.43(8)