文献类型：期刊文献

英文题名：Defect Engineering of MOF-Derived Carbon for Peroxymonosulfate Activation to Degrade Sulfadiazine: Roles of Carbon Vacancies and Edge Defects

作者：Liu, Da[1,2];Zhou, Wenqi[1,2];Tan, Sihan[1,2];Wang, Xiaoxue[1,2];Zheng, Yibin[1,2];Wang, Huawei[1,2];Zhou, Liang[1,2,3,4];Lei, Juying[1,2,3,4];Zhang, Jinlong[4,5];Liu, Yongdi[1,2,4]

机构：[1]East China Univ Sci & Technol, Natl Engn Res Ctr Ind Wastewater Detoxicat & Resou, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Environm Protect Key Lab Environm Risk Asses, Shanghai 200237, Peoples R China;[3]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China;[4]East China Univ Sci & Technol, Shanghai Engn Res Ctr Multimedia Environm Catalysi, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Key Lab Adv Mat & Joint Int Res Lab Precis Chem &, Shanghai 200237, Peoples R China

年份：2023

卷号：3

期号：11

起止页码：2038

外文期刊名：ACS ES&T ENGINEERING

收录：WOS:【ESCI(收录号:WOS:001096696900001)】；

基金：This work was financially supported by the National Natural Science Foundation of China (22176061, 22076046, and 22376064), the Science and Technology Commission of Shanghai Municipality (21230712000), and the Fundamental Research Funds for the Central Universities (SLB13233301, JKB01231836).

语种：英文

外文关键词：Defect-rich carbon; Metal-organicframeworks; Pyrolysis; Sulfadiazine; Peroxymonosulfateactivation

摘要：The significance of defects in carbon materials for activating peroxymonosulfate (PMS) has garnered significant attention, and enhancing the heteroatom content of carbon materials is critical in defect engineering. In this study, defect-rich carbon-based catalysts (NOCs) were synthesized through one-step pyrolysis by utilizing metal-organic frameworks (MOFs) MIL-101-NH2(Fe) as precursors. These catalysts were employed as PMS activators for the degradation of sulfadiazine (SDZ). The design and regulation of organic ligands in MOFs facilitated the introduction of high levels of oxygen- and nitrogen-containing groups, which decomposed under a regulated pyrolysis temperature gradient, to result in the formation of defects. Furthermore, both experimental and theoretical calculations confirmed that edge defects (armchair edges and zigzag edges) and carbon vacancies played specific active roles by promoting adsorption and electron absorption from PMS. Consequently, this process led to the generation of O-2(center dot-) and O-1(2), which played a dominant role in the degradation of SDZ. The NOC-1000/PMS system demonstrated universal applicability to various antibiotics, anions, and water matrices. Notably the defects could be regenerated through secondary calcination, thereby highlighting their excellent potential for practical applications. This study introduces an innovative approach utilizing MOFs for defect engineering of carbon materials.