Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar
文献类型：期刊论文
| 作者 | Yang, Yujia1,2; Shan, Rui1,2; Xiao, Yaoxin1,2; Zhao, Fengxiao1,2; Yuan, Haoran1,2; Chen, Yong1,2 |
| 刊名 | INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
 |
| 出版日期 | 2023-02-01 |
| 卷号 | 24期号:3页码:22 |
| 关键词 | CeO2-magnetic biochar magnetic adsorbent Pb2+ removal absorption mechanism |
| DOI | 10.3390/ijms24031974 |
| 通讯作者 | Yuan, Haoran(yuanhr@ms.giec.ac.cn) |
| 英文摘要 | Magnetic separable biochar holds great promise for the treatment of Pb2+-contaminated wastewater. However, the absorption effect of unmodified magnetic biochar is poor. Considering this gap in knowledge, CeO2-doped magnetic coconut coir biochar (Ce-MCB) and magnetic coconut coir biochar (MCB) for Pb2+ absorption were prepared by the impregnation method, and the efficiency of Ce-MCB for Pb2+ absorption was evaluated in comparison with MCB. Conducting the absorption experiments, the study provided theoretical support for the exploration of the absorption mechanism. The quantitative analysis exposed that the enhanced absorption capacity of Ce-MCB was attributed to the increase in oxygen-containing functional groups and mineral precipitation. The Langmuir and Freundlich isotherm model showed that Ce-MCB is a suitable adsorbent for Pb2+. The absorption characteristics of Ce-MCB was fit well with the pseudo-second-order (PSO) and Langmuir models, which revealed that the absorption of Pb2+ in water was monolayer chemisorption with a maximum theoretical adsorption capacity of 140.83 mg center dot g(-1). The adsorption capacity of Ce-MCB for Pb(II) was sustained above 70% after four cycles. In addition, the saturation magnetization intensity of Ce-MCB was 7.15 emu center dot g(-1), which was sufficient to separate out from the solution. Overall, Ce-MCB has wide application prospects in terms of biomass resources recycling and environmental conservation. |
| WOS关键词 | HEAVY-METAL REMOVAL ; AQUEOUS-SOLUTION ; ACTIVATED CARBON ; ADSORPTION ; PB(II) ; LEAD ; SORPTION ; IONS ; NANOPARTICLES ; OXIDES |
| 资助项目 | State's Key Project of Research and Development Plan, China[2020YFC1908900] ; Science and Technology Program of Guangdong Province, China[2021A1515012263] ; Science and Technology Program of Guangzhou, China[202002030365] ; Guangdong Basic and Applied Basic Research Foundation[2021B1515020068] ; CAS Key Laboratory of Renewable Energy of Guangzhou |
| WOS研究方向 | Biochemistry & Molecular Biology ; Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000930406500001 |
| 出版者 | MDPI |
| 资助机构 | State's Key Project of Research and Development Plan, China ; Science and Technology Program of Guangdong Province, China ; Science and Technology Program of Guangzhou, China ; Guangdong Basic and Applied Basic Research Foundation ; CAS Key Laboratory of Renewable Energy of Guangzhou |
| 源URL | [http://ir.giec.ac.cn/handle/344007/38548]  |
| 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.Guangdong Prov Key Lab New & Renewable Energy Res, CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Yujia,Shan, Rui,Xiao, Yaoxin,et al. Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar[J]. INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,2023,24(3):22. |
| APA | Yang, Yujia,Shan, Rui,Xiao, Yaoxin,Zhao, Fengxiao,Yuan, Haoran,&Chen, Yong.(2023).Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar.INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,24(3),22. |
| MLA | Yang, Yujia,et al."Effect of CeO2-Reinforcement on Pb Absorption by Coconut Coir-Derived Magnetic Biochar".INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES 24.3(2023):22. |
入库方式： OAI收割
来源：广州能源研究所
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