Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions
文献类型：期刊论文
| 作者 | Zhao, Fengxiao1,2,3,4; Shan, Rui1,2,3; Gu, Jing1,2,3; Zhang, Yuyuan5; Yuan, Haoran1,2,3 ; Chen, Yong1,2,3
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| 刊名 | ACS OMEGA
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| 出版日期 | 2022-03-15 |
| 卷号 | 7期号:10页码:8844-8853 |
| ISSN号 | 2470-1343 |
| DOI | 10.1021/acsomega.1c07163 |
| 通讯作者 | Yuan, Haoran(yuanhr@ms.giec.ac.cn) |
| 英文摘要 | Novel KMnO4-modified loofah biochar loaded with nano-Fe2O3 (FMLB) was successfully synthesized for Cu(II) adsorption. Nitrogen adsorption method, scanning electron microscope, X-ray photoelectron spectroscopy, Fourier transform infrared spectrometer, and other characterization measurements were used to evaluate the physical and chemical properties of FMLB and nano-Fe2O3-loaded biochar (FLB). The results show that the adsorption behavior of Cu(II) can be best fitted by the Langmuir isotherm model and the pseudo-second-order (PSO) kinetic model, indicating that the surface of FMLB was composed of homogeneous adsorption, and chemical adsorption dominated the adsorption process under optimal reaction conditions. The adsorption capacity of FMLB is improved by 42.86% compared to FLB, and it remained over 75% after four cycles. The inner-sphere complexes with manganese oxide (MnOx) and oxygen-containing functional groups, as well as electrostatic interaction, physical adsorption, and ion exchange, play important roles in Cu(II) adsorption. The saturation magnetization of FMLB was 10.41 emu/g, ensuring that it can be easily separated from aqueous solutions. Therefore, magnetically recyclable biochar modified by KMnO4 is a feasible method for Cu(II) adsorption. |
| WOS关键词 | ACTIVATED CARBONS ; HEAVY-METALS ; REMOVAL ; MECHANISM ; COPPER ; IONS ; PYROLYSIS ; SORPTION ; CD(II) ; CR(VI) |
| 资助项目 | Key-Area Research and Development Program of GuangDong Province[2019B110209003] ; National Natural Science Funds of China[51906045] ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)[GML2019ZD0101] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515020068] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| 出版者 | AMER CHEMICAL SOC |
| WOS记录号 | WOS:000783601100062 |
| 资助机构 | Key-Area Research and Development Program of GuangDong Province ; National Natural Science Funds of China ; Key Special Project for Introduced Talents Team of Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou) ; Guangdong Basic and Applied Basic Research Foundation |
| 源URL | [http://ir.giec.ac.cn/handle/344007/36288]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Yuan, Haoran |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 2.Southern Marine Sci & Engn Guangdong Lab Guangzho, Guangzhou 511458, Peoples R China 3.Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Coll Mat Sci & Energy Engn, Foshan 528000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhao, Fengxiao,Shan, Rui,Gu, Jing,et al. Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions[J]. ACS OMEGA,2022,7(10):8844-8853. |
| APA | Zhao, Fengxiao,Shan, Rui,Gu, Jing,Zhang, Yuyuan,Yuan, Haoran,&Chen, Yong.(2022).Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions.ACS OMEGA,7(10),8844-8853. |
| MLA | Zhao, Fengxiao,et al."Magnetically Recyclable Loofah Biochar by KMnO4 Modification for Adsorption of Cu(II) from Aqueous Solutions".ACS OMEGA 7.10(2022):8844-8853. |
入库方式： OAI收割
来源：广州能源研究所
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