Rhizosphere environmental factors regulated the cadmium adsorption by vermicompost: Influence of pH and low-molecular-weight organic acids
文献类型：期刊论文
| 作者 | Pan, Pan3,4,6; Liu, Huizhan5; Liu, Ang6; Zhang, Xinchun6; Chen, Qingmian6; Wang, Guihua2; Liu, Beibei3,4,6; Li, Qinfen3,4,6; Lei, Mei1 |
| 刊名 | ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
 |
| 出版日期 | 2023-11-01 |
| 卷号 | 266页码:11 |
| ISSN号 | 0147-6513 |
| 关键词 | Vermicompost Cadmium PH Low-molecular-weight organic acid Adsorption characteristics |
| DOI | 10.1016/j.ecoenv.2023.115593 |
| 通讯作者 | Wang, Guihua(wgh8308@163.com) ; Liu, Beibei(liubeibei1110@126.com) |
| 英文摘要 | Vermicompost is a promising amendment for immobilization of cadmium (Cd) in soils; however, its effectiveness can be influenced by rhizosphere environment conditions, such as pH and the presence of low-molecular-weight organic acids (LMWOAs). In this study, a batch experiment was conducted to examine the characteristics of Cd adsorption by vermicompost at different pH (pH = 3, 5, and 7) and after the addition of different LMWOAs (oxalic acid; citric acid; malic acid). Furthermore, a series of morphology and structural analyses were conducted to elucidate the mechanisms of observed effects. The results showed that the adsorption capacity of vermi-compost for Cd increased as pH increased, and chemisorption dominated the adsorption process. Changes in pH altered adsorption performance by affecting the-OH groups of alcohol/phenol and the-CH2 groups of aliphatics. Further, the addition of oxalic acid promoted Cd adsorption, and the effect was concentration dependent. Modifying the verimicompost surface with more adsorption sites might be the main reason. Conversely, citric acid and malic acid showed the ability to inhibit Cd adsorption by vermicompost. Citric acid caused a blocking effect by covering flocculent substances on the vermicompost surface while reducing surface adsorption sites by dissolving mineral components such as iron oxides. However, the action of malic acid did not appear to be related to changes in morphology or the structure of vermicompost. Overall, the results of this study partially explain the limited effectiveness of Cd immobilization within the rhizosphere by vermicompost, and provide theoretical support for regulating rhizosphere environments to improve the effectiveness of vermicompost immobilization of Cd. |
| WOS关键词 | HEAVY-METAL ; SOIL ; BIOCHAR ; HEALTH ; YIELD ; PLANT ; LEAD ; MN |
| 资助项目 | Major Science and Technology Program of Hainan Province, China[ZDKJ2021009] ; Hainan Provincial Key Research and Development Projects[ZDYF2021XDNY186] ; Hainan Provincial Key Research and Development Projects[ZDYF2022SHFZ319] ; Hainan Provincial Natural Science Foundation of China[320QN187] |
| WOS研究方向 | Environmental Sciences & Ecology ; Toxicology |
| 语种 | 英语 |
| 出版者 | ACADEMIC PRESS INC ELSEVIER SCIENCE |
| WOS记录号 | WOS:001097557000001 |
| 资助机构 | Major Science and Technology Program of Hainan Province, China ; Hainan Provincial Key Research and Development Projects ; Hainan Provincial Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/199619]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Guihua; Liu, Beibei |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Hainan Univ, Coll Forestry, Haikou 570228, Hainan, Peoples R China 3.Hainan Key Lab Trop Ecocircular Agr, Haikou 571101, Peoples R China 4.Natl Agr Environm Sci Observat & Expt Stn, Danzhou 571737, Peoples R China 5.Zhengzhou Univ, Sch Ecol & Environm, Zhengzhou 450001, Henan, Peoples R China 6.Chinese Acad Trop Agr Sci, Inst Environm & Plant Protect, Haikou 571101, Hainan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Pan,Liu, Huizhan,Liu, Ang,et al. Rhizosphere environmental factors regulated the cadmium adsorption by vermicompost: Influence of pH and low-molecular-weight organic acids[J]. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,2023,266:11. |
| APA | Pan, Pan.,Liu, Huizhan.,Liu, Ang.,Zhang, Xinchun.,Chen, Qingmian.,...&Lei, Mei.(2023).Rhizosphere environmental factors regulated the cadmium adsorption by vermicompost: Influence of pH and low-molecular-weight organic acids.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,266,11. |
| MLA | Pan, Pan,et al."Rhizosphere environmental factors regulated the cadmium adsorption by vermicompost: Influence of pH and low-molecular-weight organic acids".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 266(2023):11. |
入库方式： OAI收割
来源：地理科学与资源研究所
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