One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue
文献类型：期刊论文
| 作者 | Mian, Md Manik; Liu, Guijian1; Yousaf, Balal; Fu, Biao; Ahmed, Rafay; Abbas, Qumber; Munir, Mehr Ahmed Mujtaba; Liu Ruijia |
| 刊名 | JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
 |
| 出版日期 | 2019-04-01 |
| 卷号 | 78页码:29-41 |
| 关键词 | Biochar-supported photocatalyst N-TiO2-Fe3O4-biochar NH3-ambiance pyrolysis Methylene Blue Photocatalysis |
| ISSN号 | 1001-0742 |
| DOI | 10.1016/j.jes.2018.06.014 |
| 通讯作者 | Liu, Guijian(lgj@ustc.edu.cn) |
| 英文摘要 | A series of new biochar-supported composite based on the combination of biochar and metallic nanoparticles (NPs) were produced through single-step pyrolysis of FeCl3-Ti(OBu)(4) laden agar biomass under NH3 environment. The physiochemical properties of composites were characterized thoroughly. It has found that heating temperature and N-doping through NH3-ambiance pyrolysis significantly influence the visible-light sensitivity and bandgap energy of composites. The catalytic activities of composites were measured by degradation of Methylene Blue (MB) in the presence or absence of H2O2 and visible-light irradiation. Our best catalyst (N-TiO2-Fe3O4-biochar) exhibits rapid and high MB removal competency (99.99%) via synergism of adsorption, photodegradation, and Fenton-like reaction. Continuous production of O-2 center dot(-) and center dot OH radicles performs MB degradation and mineralization, confirmed by scavenging experiments and degradation product analysis. The local trap state Ti3+, Fe3O4, and N-carbon of the catalyst acted as active sites. It has suggested that the Ti3+ and N-doped dense carbon layer improve charge separation and shuttle that prolonged photo-Fenton like reaction. Moreover, the catalyst is highly stable, collectible, and recyclable up to 5 cycles with high MB degradation efficiency. This work provides a new insight into the synthesis of highly visible-light sensitized biochar-supported photocatalyst through NH3-ambiance pyrolysis of NPs-laden biomass. (c) 2018 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V. |
| WOS关键词 | ENHANCED ADSORPTIVE REMOVAL ; PHOTOCATALYTIC DEGRADATION ; TIO2 NANOPARTICLES ; AQUEOUS-SOLUTIONS ; CARBON NANOTUBES ; FACILE SYNTHESIS ; BIOCHAR ; HYBRID ; CATALYSTS ; IRON |
| 资助项目 | National Basic Research Program of China (973 Program)[2014CB238903] ; National Natural Science Foundation of China[41672144] ; National Natural Science Foundation of China[41173032] ; National Natural Science Foundation of China[41373110] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000463377700003 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China |
| 源URL | [http://ir.ieecas.cn/handle/361006/14171]  |
| 专题 | 地球环境研究所_黄土与第四纪地质国家重点实验室（2010~） |
| 通讯作者 | Liu, Guijian |
| 作者单位 | 1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mian, Md Manik,Liu, Guijian,Yousaf, Balal,et al. One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue[J]. JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,2019,78:29-41. |
| APA | Mian, Md Manik.,Liu, Guijian.,Yousaf, Balal.,Fu, Biao.,Ahmed, Rafay.,...&Liu Ruijia.(2019).One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue.JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA,78,29-41. |
| MLA | Mian, Md Manik,et al."One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue".JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA 78(2019):29-41. |
入库方式： OAI收割
来源：地球环境研究所
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。