Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)

doi:10.1016/j.chemosphere.2018.06.021

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)
	Mian, Md Manik 1,2; Liu, Guijian 1,2; Yousaf, Balal 1,2; Fu, Biao 1; Ullah, Habib 1; Ali, Muhammad Ubaid 1,2; Abbas, Qumber 1; Munir, Mehr Ahmed Mujtaba 1; Ruijia, Liu 1
刊名	CHEMOSPHERE
	2018-10-01
卷号	208 期号:6 页码:712-721
关键词	N-biochar Ammonia Modification Magnetization Adsorption Chromium (Vi)
DOI	10.1016/j.chemosphere.2018.06.021
文献子类	Article
英文摘要	Enhancing biochar adsorption capabilities and recollection ability is essential for efficient biochar application. In this study, Nitrogen-doped magnetic biochar was prepared via one-step heating of FeCl3-laden agar biomass under NH3 environment. Synthesized magnetic biochar ABF-N-800 shows a maximum Cr (VI) adsorption capacity up to 142.86 mg g(-1), outperforming that of magnetic biochar and many other previously reported materials. Moreover, a significant increase of magnetic properties obtained by NH3 ambiance pyrolysis enables easy separation of the adsorbent from the solution after treated with Cr (VI). The physiochemical properties of composites characterized by SEM, EDS, XRD, XPS, VSM, BET surface and pore, Elemental content, and FTIR analysis. The NH3 ambiance pyrolysis confirmed as an efficient process for surface modification, increased magnetic properties and activated N-functional groups. The Langmuir isotherm model and pseudo-second-order model are applicable for describing adsorption behavior. The thermodynamic study shows that the adsorption was spontaneous and endothermic. The present results warrant the application of simultaneous functionalized and magnetized biochar for Cr (VI) contaminated wastewater treatment. (C) 2018 Elsevier Ltd. All rights reserved.
WOS关键词	HEXAVALENT CHROMIUM REMOVAL ; ENHANCED CR(VI) REMOVAL ; AQUEOUS-SOLUTION ; FE3O4 NANOPARTICLES ; MESOPOROUS CARBON ; OXYGEN REDUCTION ; GRAPHENE OXIDE ; WASTE-WATER ; IN-SITU ; ADSORPTION
WOS研究方向	Environmental Sciences & Ecology
语种	英语
WOS记录号	WOS:000441999400079
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5116]
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~）
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. Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)[J]. CHEMOSPHERE,2018,208(6):712-721.
APA	Mian, Md Manik.,Liu, Guijian.,Yousaf, Balal.,Fu, Biao.,Ullah, Habib.,...&Ruijia, Liu.(2018).Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI).CHEMOSPHERE,208(6),712-721.
MLA	Mian, Md Manik,et al."Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)".CHEMOSPHERE 208.6(2018):712-721.