Humic acid-supported nanoscale zero-valent iron for sustainable cadmium remediation and crop safety in farmland soil
文献类型： 外文期刊
作者： Liu, Yangzhi 1 ; Zhou, Dongren 2 ; Huang, Peng 3 ; Yang, Chenghu 1 ; Zhang, Jing 4 ; Wang, Honghui 4 ; Cheng, Qilu 1 ; Liu, Yingxia 1 ; Gao, Chengxiang 1 ; Ma, Jinchuan 1 ; Lin, Hui 1 ; Ma, Junwei 1 ;
作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizers, State Key Lab Qual & Safety Agroprod, Hangzhou 310021, Peoples R China
2.Minist Agr & Rural Affairs, Zhejiang Inst Freshwater Fisheries, Key Lab Hlth Freshwater Aquaculture, Key Lab Fish Hlth & Nutr Zhejiang Prov,Minist Agr, Huzhou 313001, Peoples R China
3.Wenzhou Med Univ, Sch Publ Hlth & Management, Wenzhou 325035, Peoples R China
4.Xiamen Univ, Tan Kah Kee Coll, Sch Environm Sci & Engn, Zhangzhou 363123, Peoples R China
关键词： Humic acid-supported nanoscale zero-valent iron; Cadmium stabilization; Safe crop production; Iron metabolism; Nitrogen cycling
期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：11.3； 五年影响因子：12.4 ）
ISSN： 0304-3894
年卷期： 2025 年 492 卷
页码：
收录情况： SCI
摘要： The immobilization efficacy of most existing stabilizers for cadmium (Cd)-contaminated soil is highly sensitive to ecological and environmental fluctuations. These fluctuations can induce the reactivation of Cd, thereby restricting the long-term applicability of stabilization technologies. In this study, we synthesized a humic acid (HA)-supported nanoscale zero-valent iron (nZVI) particle (nZVI@HA). The roles of nZVI@HA in Cd sequestration and rice production were investigated throughout the entire rice life cycle using pot experiments with separate and combined applications of pristine nZVI and HA, as well as varying dosages of nZVI@HA. The application of 500-1000 mg/kg nZVI@HA significantly reduced the available Cd content to 37.85 %-55.24 % of that in the control group at 140 days. Analysis of the dynamic relationship between Cd species and solid-phase iron revealed that HA modification increased electronegativity and inhibited Fe0 oxidation, enabling nZVI@HA to passivate Cd through electrostatic attraction and complexation. Furthermore, the grain Cd content decreased from 0.78 to 0.16-0.19 mg/kg, whereas the grain yield increased from 3.59 to 6.54-8.24 g/plant after treatments with 500-1000 mg/kg nZVI@HA. The stimulatory effects of nZVI@HA on both soil ammonia nitrogen (NH4+-N) content and iron plaque formation were identified as specific functions. Additionally, 16S rRNA sequencing indicated that the simultaneous promotion of Cd sequestration and safe crop production relied on the nZVI@HAfacilitated coupling process of microbial iron-metabolism, Cd species transformation, and nitrogen cycling.
- 相关文献
作者其他论文 更多>>
-
The effect of [Br/Zn] content on the structure and photocatalytic performance of BiOBr/ZnO based composite coatings on NiO/Ni foam
作者：Li, Dayu;Li, Longfei;Liu, Yuxue;Lin, Hui;Wang, Yichen;Zhang, Yongcai;Wang, Yichen;Li, Hongbin;Hou, Zhenhua;Asghar, Zeeshan;Hou, Jianhua
关键词：BiOBr/ZnO composite; Solvothermal synthesis method; Nickel foam; Coating
-
One-step microwave method synthesis of N, S-codoped carbon with the frustrated Lewis pairs for Cr (VI) removal
作者：Wang, Liwen;Sha, Yixin;Bi, Changjun;Lin, Daoqing;Wang, Xiaozhi;Jrar, Jawad Ahmad;Hou, Jianhua;Liu, Yuxue;Wang, Xiaozhi;Lin, Hui;Dai, Lichun;Hou, Jianhua
关键词：Cr(VI) reduction; Microwave; Co-doping carbon; Frustrated-Lewis-pair; Absorption
-
Insect residual streams supplement improves chili pepper growth: Insights into the role of rhizosphere soil microbiome and metabolome
作者：Zhou, Hanghai;Zheng, Xusong;Shen, Qi;Yao, Xiaohong;Sun, Hong;Wang, Xin;Wu, Yifei;Tang, Jiangwu;Zhu, Zhigang;Yang, Chenghu;Li, Hua;Liu, Yuxue;Jiang, Lijia;Zhang, Chunfang
关键词：Insect farming; Insect residual stream; Chili pepper; Plant growth; Rhizosphere microbial community; Metabolic profile
-
Distribution characteristics and source analysis of dissolved organic matter with different molecular weights in the coastal waters of Zhejiang Province
作者：Sun, Xiumei;Song, Suping;Hao, Qing;Zhu, Jian;Li, Tiejun;Guo, Yuanming;Song, Suping;Yang, Chenghu
关键词：Coastal waters; Dissolved organic matter; Ultrafiltration; Molecular weight; Spectral characteristics; EEM-PARAFAC
-
Ultrasound/microwave modification-mediated formation of precipitated debranched starch-lipid complexes: Physicochemical and in vitro digestion properties
作者：Cui, Ziyan;Yu, Haiyang;Zhao, Mei;Zhang, Jing;Wei, Jianteng;Sun, Qingjie;Mu, Hongyan;Cui, Ziyan;Yu, Haiyang;Zhao, Mei;Zhang, Jing;Wei, Jianteng;Sun, Qingjie;Mu, Hongyan;Dong, Juan;Sun, Suling
关键词：PDBS-LA complexes; Properties; Digestibility
-
Integrated metabolome and transcriptome provide insights into meat quality differences between Fujian yellow and New Zealand white rabbits
作者：Zhang, Jing;Yang, Jingyi;Han, Xudong;Ren, Yuyao;Zhao, Bohao;Wu, Xinsheng;Chen, Yang;Liu, Yan
关键词：Fujian yellow rabbit; New Zealand white rabbit; Metabolome; Transcriptome; Rabbit meat
-
Effects of Increasing CO2 Concentration on Crop Growth and Soil Ammonia-Oxidizing Microorganisms in a Fababean (Vicia faba L.) and Wheat (Triticum aestivum Yunmai) Intercropping System
作者：Dong, Xingshui;Lin, Hui;Wang, Feng;Ma, Junwei;Dong, Xingshui;Shi, Songmei;He, Xinhua;He, Xinhua;He, Xinhua
关键词：fababean; wheat; intercropping; elevated CO2; ammonia-oxidizing microorganisms
