One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue

doi:10.1016/j.jes.2018.06.014

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（2010~）

	One-step synthesis of N-doped metal/biochar composite using NH3-ambiance pyrolysis for efficient degradation and mineralization of Methylene Blue
	Mian, Md Manik ; Liu, Guijian 1; Yousaf, Balal ; Fu, Biao ; Ahmed, Rafay ; Abbas, Qumber ; Munir, Mehr Ahmed Mujtaba ; Liu Ruijia
通讯作者	Liu, Guijian(lgj@ustc.edu.cn)
	2019-04-01
发表期刊	JOURNAL OF ENVIRONMENTAL SCIENCES-CHINA
ISSN	1001-0742
卷号	78 页码:29-41
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.
关键词	Biochar-supported photocatalyst N-TiO2-Fe3O4-biochar NH3-ambiance pyrolysis Methylene Blue Photocatalysis
DOI	10.1016/j.jes.2018.06.014
关键词[WOS]	ENHANCED ADSORPTIVE REMOVAL ; PHOTOCATALYTIC DEGRADATION ; TIO2 NANOPARTICLES ; AQUEOUS-SOLUTIONS ; CARBON NANOTUBES ; FACILE SYNTHESIS ; BIOCHAR ; HYBRID ; CATALYSTS ; IRON
收录类别	SCI ; SCI
语种	英语
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
项目资助者	National Basic Research Program of China (973 Program) ; National Natural Science Foundation of China
WOS类目	Environmental Sciences
WOS记录号	WOS:000463377700003
出版者	SCIENCE PRESS
引用统计	被引频次：56[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/14172
专题	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.