Lanthanum and cerium functionalised forestry waste biochar for phosphate removal: Mechanisms and real-world applications
文献类型：期刊论文
| 作者 | Pap, Sabolc2; Zhao, Qunying2,3; Cakin, Ilgaz2; Gaffney, Paul P. J.1,2; Gibb, Stuart W.2; Taggart, Mark A.2 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2024-08-15 |
| 卷号 | 494页码:13 |
| 关键词 | Column separation Modelling Complexation Adsorption Resource recovery Circular economy |
| ISSN号 | 1385-8947 |
| DOI | 10.1016/j.cej.2024.152848 |
| 产权排序 | 3 |
| 英文摘要 | Phosphorus as a diminishing finite resource, yet is an essential element for the growth of biota. However, elevated concentrations in water can imbalance ecosystems and cause eutrophication. To address both problems, two highly efficient biochars, namely La-OB and CeLa-OB were synthesised by lanthanum and cerium doping. The performance of La-OB and CeLa-OB were evaluated in both batch and dynamic regimes with synthetic phosphate (PO43--P) 4 3--P) solutions and eutrophic lake water. PO43--P 4 3--P adsorption mechanisms were investigated in terms of pH, kinetics, isotherms, activation energy, thermodynamics and using in-depth characterisation (XPS, FTIR, XRD, BET, pH pzc and SEM-EDX). The feasibility of using such biochar in 'real life' situations was studied with column filtration of lake water with low and high PO43--P 4 3--P concentrations. Reusability/desorption and toxicity in the water environment was also considered. The mechanistic study showed that both biochars predominantly had inner-sphere complexes with La and Ce ligands (as a monolayer), while outer-sphere complexation was less common. The exothermic adsorption process followed the Elovich kinetic and Langmuir isotherm models, with a maximum adsorption capacity of 112 mg/g for La-OB and 40 mg/g for CeLa-OB. In column filtration trials the adsorption capacity reached 78 mg/g, while low metal leaching (0.08 mg/L) and low toxicity to Lepidium sativum germination were detected. The results indicated that these biochars, especially La-OB, could be used in circular economy-based water treatment. |
| WOS关键词 | ADSORPTION ; PHOSPHORUS ; ADSORBENT |
| 资助项目 | RSPB Forsinard Flows National Nature Reserve ; University of the Highlands and Islands Water Hub Challenge Fund ; Natural Science Foundation of Education Department of Shaanxi Province[18JK0375] ; Royal Society of Chemistry 'RSC Research Fund[R20-7810] ; Royal Society of Chemistry 'RSC Research Fund[E21-3852540400] ; Royal Society Research Grant[RGS\R1\211266] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:001333586500001 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | RSPB Forsinard Flows National Nature Reserve ; University of the Highlands and Islands Water Hub Challenge Fund ; Natural Science Foundation of Education Department of Shaanxi Province ; Royal Society of Chemistry 'RSC Research Fund ; Royal Society Research Grant |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/209982]  |
| 专题 | 陆地水循环及地表过程院重点实验室_外文论文 |
| 通讯作者 | Pap, Sabolc |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China 2.Univ Highlands & Isl, Environm Res Inst, UHI North West & Hebrides, Thurso KW14 7JD, Caithness, Scotland 3.Xian Technol Univ, Civil & Architecture Engn, Xian 710021, Shaan Xi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pap, Sabolc,Zhao, Qunying,Cakin, Ilgaz,et al. Lanthanum and cerium functionalised forestry waste biochar for phosphate removal: Mechanisms and real-world applications[J]. CHEMICAL ENGINEERING JOURNAL,2024,494:13. |
| APA | Pap, Sabolc,Zhao, Qunying,Cakin, Ilgaz,Gaffney, Paul P. J.,Gibb, Stuart W.,&Taggart, Mark A..(2024).Lanthanum and cerium functionalised forestry waste biochar for phosphate removal: Mechanisms and real-world applications.CHEMICAL ENGINEERING JOURNAL,494,13. |
| MLA | Pap, Sabolc,et al."Lanthanum and cerium functionalised forestry waste biochar for phosphate removal: Mechanisms and real-world applications".CHEMICAL ENGINEERING JOURNAL 494(2024):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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