In-situ synthesis of N, S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants
文献类型：期刊论文
| 作者 | Xie, Yongbing1,2; Liu, Ya3,4; Yao, Yujie2,5; Shi, Yanchun2; Zhao, Binran5; Wang, Yuxian3 |
| 刊名 | CHINESE CHEMICAL LETTERS
 |
| 出版日期 | 2022-03-01 |
| 卷号 | 33期号:3页码:1298-1302 |
| 关键词 | Metal-free catalysis Hollow carbon microspheres N, S co-doping Catalytic ozonation Singlet oxygen (O-1(2)) |
| ISSN号 | 1001-8417 |
| DOI | 10.1016/j.cclet.2021.07.055 |
| 英文摘要 | Metal-free heteroatom doped nanocarbons are promising alternatives to the metal-based materials in catalytic ozonation for destruction of aqueous organic contaminants. In this study, N, S co-doped hollow carbon microspheres (NSCs) were synthesized from the polymerization products during persulfate wet air oxidation of benzothiazole. The contents of doped N and S as well as the structural stability were maneuvered by adjusting the subsequent N-2-annealing temperature. Compared with the prevailing single-walled carbon nanotubes, the N-2-annealed NSCs demonstrated a higher catalytic ozonation activity for benzimidazole degradation. According to the quantitative structure-activity relationship (QSAR) analysis, the synergistic effect between the graphitic N and the thiophene-S which redistributed the charge distribution of the carbon basal plane contributed to the activity enhancement of the N-2-annealed NSCs. Additionally, the hollow structure within the microspheres served as the microreactor to boost the mass transfer and reaction kinetics via the nanoconfinement effects. Quenching and electron paramagnetic resonance (EPR) tests revealed that benzimidazole degradation was dominated by the produced singlet oxygen (O-1(2)) species, while hydroxyl radicals ((OH)-O-center dot) were also generated and participated. This study puts forward a novel strategy for synthesis of heteroatom-doped nanocarbons and sheds a light on the relationship between the active sites on the doped nanocarbons and the catalytic performance. (C) 2021 Published by Elsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. |
| WOS关键词 | SINGLET OXYGEN ; PEROXYMONOSULFATE ACTIVATION ; WATER-TREATMENT ; RATE CONSTANTS ; DEGRADATION ; OZONATION ; GRAPHENE ; PERSULFATE ; NANOTUBES ; OXIDE |
| 资助项目 | National Natural Science Foundation of China[21978324] ; Tianjin Municipal Science and Technology Bureau[18YFYSZ00170] ; Beijing Natural Science Foundation[8192039] ; Science Foundation of China University of Petroleum, Beijing[2462020YXZZ034] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000772416400023 |
| 出版者 | ELSEVIER SCIENCE INC |
| 资助机构 | National Natural Science Foundation of China ; Tianjin Municipal Science and Technology Bureau ; Beijing Natural Science Foundation ; Science Foundation of China University of Petroleum, Beijing |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/52524]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Zhao, Binran; Wang, Yuxian |
| 作者单位 | 1.State Key Lab Vanadium & Titanium Resources Compr, Panzhihua 617000, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing Engn Res Ctr Proc Pollut Control, Beijing 100190, Peoples R China 3.China Univ Petr, State Key Lab Petr Pollut Control, State Key Lab Heavy Oil Proc, Beijing 102249, Peoples R China 4.Univ Adelaide, Sch Chem Engn & Adv Mat, Adelaide, SA 5005, Australia 5.Northwest Univ, Sch Chem Engn, Xian 710069, Peoples R China |
| 推荐引用方式 GB/T 7714 | Xie, Yongbing,Liu, Ya,Yao, Yujie,et al. In-situ synthesis of N, S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants[J]. CHINESE CHEMICAL LETTERS,2022,33(3):1298-1302. |
| APA | Xie, Yongbing,Liu, Ya,Yao, Yujie,Shi, Yanchun,Zhao, Binran,&Wang, Yuxian.(2022).In-situ synthesis of N, S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants.CHINESE CHEMICAL LETTERS,33(3),1298-1302. |
| MLA | Xie, Yongbing,et al."In-situ synthesis of N, S co-doped hollow carbon microspheres for efficient catalytic oxidation of organic contaminants".CHINESE CHEMICAL LETTERS 33.3(2022):1298-1302. |
入库方式： OAI收割
来源：过程工程研究所
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