The duet of surface and radical-based carbocatalysis for oxidative destructions of aqueous contaminants over built-in nanotubes of graphite
文献类型：期刊论文
| 作者 | Wang, Yuxian2; Xi, Jiaxin2; Duan, Xiaoguang1; Lv, Weiguang3; Cao, Hongbin3; Chen, Chunmao2; Guo, Zhuang3; Xie, Yongbing3; Wang, Shaobin1 |
| 刊名 | JOURNAL OF HAZARDOUS MATERIALS
 |
| 出版日期 | 2020-02-15 |
| 卷号 | 384页码:12 |
| ISSN号 | 0304-3894 |
| 关键词 | Metal-free catalysis Nonradical oxidation Carbon nanotubes Catalytic ozonation Reactive oxygen species (ROS) |
| DOI | 10.1016/j.jhazmat.2019.121486 |
| 英文摘要 | Metal-free mesoporous graphitic frameworks with built-in nanotubes (CPGs) were synthesized via facile co-pyrolysis of cyclodextrin and a cobalt salt with subsequent acid pickling to remove the embedded metal species. Due to the high graphitic degree and built-in few-layer nanotubes, the as-synthesized carbonaceous materials possess a higher catalytic ozonation activity than that of the state-of-the-art carbon nanotubes (CNTs) and LaMnO3 perovskite catalysts for the destruction of different aqueous contaminants. For recalcitrant oxalic acid removal, 50 mg L-1 oxalic acid was completely degraded in 20 min. Compared with other nanocarbons, the as-synthesized materials also demonstrated robust structural stability and reusability. The electron paramagnetic resonance (EPR) and selective radical quenching tests revealed that the destruction of the aqueous organics predominantly relied on surface-adsorbed complexes (O-ad(star) and O-2(star)) from activated ozone molecules. Owing to the occurrence of this surface oxidation pathway, the compatibility of the CPGs/O-3 system was significantly enhanced for treatment of real wastewater, where the inorganic anions and organic natural organic matter would inhibit radical oxidation as radical scavengers. Furthermore, by employing organics with different ionization potentials (IPs) as the target pollutants, the CPGs/O-3 system was discovered to obtain a high oxidation potential. [GRAPHICS] . |
| WOS关键词 | EFFICIENT CATALYTIC OZONATION ; VISIBLE-LIGHT PHOTOACTIVITY ; NITROGEN-DOPED GRAPHENE ; CARBON NANOTUBES ; HYDROXYL RADICALS ; REACTIVE RADICALS ; DEGRADATION ; OXIDE ; REDUCTION ; OZONE |
| 资助项目 | National Natural Science Foundation of China[21606253] ; National Science Fund for Distinguished Young Scholars of China[51425405] ; Science Foundation of China University of Petroleum, Beijing[2462016YJRC013] ; Beijing Natural Science Foundation[8172043] ; Beijing Natural Science Foundation[8192039] |
| WOS研究方向 | Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000508742700107 |
| 资助机构 | National Natural Science Foundation of China ; National Science Fund for Distinguished Young Scholars of China ; Science Foundation of China University of Petroleum, Beijing ; Beijing Natural Science Foundation |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/39188]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Chunmao; Xie, Yongbing |
| 作者单位 | 1.Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia 2.China Univ Petr, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Yuxian,Xi, Jiaxin,Duan, Xiaoguang,et al. The duet of surface and radical-based carbocatalysis for oxidative destructions of aqueous contaminants over built-in nanotubes of graphite[J]. JOURNAL OF HAZARDOUS MATERIALS,2020,384:12. |
| APA | Wang, Yuxian.,Xi, Jiaxin.,Duan, Xiaoguang.,Lv, Weiguang.,Cao, Hongbin.,...&Wang, Shaobin.(2020).The duet of surface and radical-based carbocatalysis for oxidative destructions of aqueous contaminants over built-in nanotubes of graphite.JOURNAL OF HAZARDOUS MATERIALS,384,12. |
| MLA | Wang, Yuxian,et al."The duet of surface and radical-based carbocatalysis for oxidative destructions of aqueous contaminants over built-in nanotubes of graphite".JOURNAL OF HAZARDOUS MATERIALS 384(2020):12. |
入库方式： OAI收割
来源：过程工程研究所
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