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IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)  > 期刊论文
题名: Simultaneous functionalization and magnetization of biochar via NH3 ambiance pyrolysis for efficient removal of Cr (VI)
作者: Mian, Md Manik1, 2;  Liu, Guijian1, 2;  Yousaf, Balal1, 2;  Fu, Biao1;  Ullah, Habib1;  Ali, Muhammad Ubaid1, 2;  Abbas, Qumber1;  Munir, Mehr Ahmed Mujtaba1;  Ruijia, Liu1
关键词: N-Biochar ;  Ammonia modification ;  Magnetization ;  Adsorption ;  Chromium (VI)
刊名: CHEMOSPHERE
发表日期: 2018-10-01
DOI: 10.1016/j.chemosphere.2018.06.021
卷: 208, 期:6, 页:712-721
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
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.
关键词[WOS]: HEXAVALENT CHROMIUM REMOVAL ;  ENHANCED CR(VI) REMOVAL ;  AQUEOUS-SOLUTION ;  FE3O4 NANOPARTICLES ;  MESOPOROUS CARBON ;  OXYGEN REDUCTION ;  GRAPHENE OXIDE ;  WASTE-WATER ;  IN-SITU ;  ADSORPTION
语种: 英语
WOS记录号: WOS:000441999400079
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.ieecas.cn/handle/361006/5116
Appears in Collections:黄土与第四纪地质国家重点实验室(2010~)_期刊论文

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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

Recommended Citation:
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.
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