Enhanced phosphate adsorption and desorption characteristics of MgO-modified biochars prepared via direct co-pyrolysis of MgO and raw materials
文献类型：期刊论文
| 作者 | Tu, Panfeng2; Zhang, Guanlin2,3; Cen, Yingyuan2; Huang, Baoyuan1; Li, Juan2; Li, Yongquan2; Deng, Lifang1; Yuan, Haoran1,3 |
| 刊名 | BIORESOURCES AND BIOPROCESSING
 |
| 出版日期 | 2023-08-10 |
| 卷号 | 10期号:1页码:14 |
| 关键词 | Co-pyrolysis MgO-modified biochars Phosphate adsorption capacity Phosphate desorption efficiency |
| DOI | 10.1186/s40643-023-00670-3 |
| 通讯作者 | Deng, Lifang(nannandeng@163.com) |
| 英文摘要 | Biochar modified by metal ions-particularly Mg-is typically used for the effective recovery of phosphorous. In this study, MgO-modified biochars were synthesized via the direct co-pyrolysis of MgO and raw materials such as rice straw, corn straw, Camellia oleifera shells, and branches from garden waste, which were labeled as MRS, MCS, MOT, and MGW, respectively. The resulting phosphate (PO) adsorption capacities and potential adsorption mechanisms were analyzed. The PO adsorption capacities of the biochars were significantly improved after the modification with MgO: MRS (24.71 +/- 0.32 mg/g) > MGW (23.55 +/- 0.46 mg/g) > MOT (15.23 +/- 0.19 mg/g) > MCS (14.12 +/- 0.21 mg/g). PO adsorption on the modified biochars was controlled by physical adsorption, precipitation, and surface inner-sphere complexation processes, although no electrostatic attraction was observed. Furthermore, PO adsorbed on modified biochars could be released under acidic, alkaline, and neutral conditions. The desorption efficiency of MRS was modest, indicating its suitability as a slow-release fertilizer. |
| WOS关键词 | LAYERED DOUBLE HYDROXIDE ; AQUEOUS-SOLUTION ; RECLAIMING PHOSPHATE ; ENGINEERED BIOCHAR ; MAGNETIC BIOCHAR ; PHOSPHORUS ; REMOVAL ; SORPTION ; REQUIREMENT ; MECHANISMS |
| 资助项目 | Basic and Applied Basic Research Foundation of Guangdong Province[2022A1515010941] ; Science and technology plan projects of Guangzhou[202206010069] ; Meizhou Science and Technology Project[2021A0304001] ; Key-Area Research and Development Program of Guangdong Province[2020B020215003] |
| WOS研究方向 | Biotechnology & Applied Microbiology |
| 语种 | 英语 |
| WOS记录号 | WOS:001049196900001 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | Basic and Applied Basic Research Foundation of Guangdong Province ; Science and technology plan projects of Guangzhou ; Meizhou Science and Technology Project ; Key-Area Research and Development Program of Guangdong Province |
| 源URL | [http://ir.giec.ac.cn/handle/344007/39683]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Deng, Lifang |
| 作者单位 | 1.South China Agr Univ, Inst Biomass Engn, Guangzhou 510642, Peoples R China 2.Zhongkai Univ Agr & Engn, Guangzhou 510225, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Tu, Panfeng,Zhang, Guanlin,Cen, Yingyuan,et al. Enhanced phosphate adsorption and desorption characteristics of MgO-modified biochars prepared via direct co-pyrolysis of MgO and raw materials[J]. BIORESOURCES AND BIOPROCESSING,2023,10(1):14. |
| APA | Tu, Panfeng.,Zhang, Guanlin.,Cen, Yingyuan.,Huang, Baoyuan.,Li, Juan.,...&Yuan, Haoran.(2023).Enhanced phosphate adsorption and desorption characteristics of MgO-modified biochars prepared via direct co-pyrolysis of MgO and raw materials.BIORESOURCES AND BIOPROCESSING,10(1),14. |
| MLA | Tu, Panfeng,et al."Enhanced phosphate adsorption and desorption characteristics of MgO-modified biochars prepared via direct co-pyrolysis of MgO and raw materials".BIORESOURCES AND BIOPROCESSING 10.1(2023):14. |
入库方式： OAI收割
来源：广州能源研究所
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