Metal-free catalytic ozonation on surface-engineered graphene: Microwave reduction and heteroatom doping
文献类型：期刊论文
| 作者 | Wang, Yuxian1,2; Cao, Hongbin2; Chen, Chunmao1; Xie, Yongbing2; Sun, Hongqi3; Duan, Xiaoguang4,5; Wang, Shaobin4,5 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2019 |
| 卷号 | 355页码:118-129 |
| 关键词 | Metal-free oxidation N-doping Microwave Defects Catalytic ozonation ROS |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2018.08.134 |
| 英文摘要 | N-doped graphene has demonstrated exceptional activities in versatile metal-free catalytic processes. In this study, reduced graphene oxide (rGO) and N-doped rGO were synthesized by a facile approach via microwave reduction with a low energy input and short reaction time. The activities of the derived carbocatalysts were evaluated by catalytic ozonation of 4-nitrophenol (4-NP). Compared with thermally annealed rGOs in argon atmosphere, microwave treated rGO demonstrated a better performance in catalytic oxidation, and N-doping would further improve the catalytic activity. It is discovered that microwave irradiation not only gave rise to more edging sites and dangling bonds in rGO, making higher catalytic potentials for ozone decomposition than that from thermal annealing, but also resulted in a higher concentration of N dopants. XPS studies revealed that more graphitic N species were incorporated into the carbon basal plane during the microwave reduction processes. The reactive oxygen species (ROS) in 4-NP oxidation were evaluated and identified by liquid-phase electron spin resonance (ESR) and radical scavenging tests, which indicated the generation of O-2(center dot-), center dot OH and O-1(2) for 4-NP degradation. This study provides a facile protocol for fabricating advanced nanocarbon materials for green oxidation and enables new insights in catalytic ozonation with state-of-the-art carbocatalysis. |
| WOS关键词 | P-NITROPHENOL DEGRADATION ; NITROGEN-DOPED GRAPHENE ; WALLED CARBON NANOTUBES ; RAMAN-SPECTROSCOPY ; HYDROGEN-PEROXIDE ; PEROXYMONOSULFATE ACTIVATION ; ORGANIC POLLUTANTS ; ASSISTED SYNTHESIS ; REACTIVE RADICALS ; GRAPHITE OXIDE |
| 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] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000445416900012 |
| 出版者 | ELSEVIER SCIENCE SA |
| 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/122111/26044]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Xie, Yongbing; Duan, Xiaoguang |
| 作者单位 | 1.China Univ Petr, Dept Chem Engn, State Key Lab Heavy Oil Proc, 18 Fuxue Rd, Beijing 102249, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Div Environm Technol & Engn, Beijing 100190, Peoples R China 3.Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Joondalup, WA 6027, Australia 4.Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia 5.Curtin Univ, Dept Chem Engn, Perth, WA 6845, Australia |
| 推荐引用方式 GB/T 7714 | Wang, Yuxian,Cao, Hongbin,Chen, Chunmao,et al. Metal-free catalytic ozonation on surface-engineered graphene: Microwave reduction and heteroatom doping[J]. CHEMICAL ENGINEERING JOURNAL,2019,355:118-129. |
| APA | Wang, Yuxian.,Cao, Hongbin.,Chen, Chunmao.,Xie, Yongbing.,Sun, Hongqi.,...&Wang, Shaobin.(2019).Metal-free catalytic ozonation on surface-engineered graphene: Microwave reduction and heteroatom doping.CHEMICAL ENGINEERING JOURNAL,355,118-129. |
| MLA | Wang, Yuxian,et al."Metal-free catalytic ozonation on surface-engineered graphene: Microwave reduction and heteroatom doping".CHEMICAL ENGINEERING JOURNAL 355(2019):118-129. |
入库方式： OAI收割
来源：过程工程研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。