Lead Immobilization in Soil and Uptake Reduction in <i>Brassica chinensis</i> Using Sepiolite-Supported Manganese Ferrite.

ABSTRACT: Lead (Pb) in soil poses serious environmental and health risks, and its removal requires complex and costly treatment methods to meet strict regulatory standards. To effectively address this challenge, innovative and efficient techniques are essential. Sepiolite-supported MnFe₂O₄ (MnFe₂O₄/SEP) composites were synthesized via a chemical co-precipitation method. The effects of MnFe₂O₄/SEP on soil pH, cation exchange capacity (CEC), available Pb content, Pb²⁺ uptake, and the activities of antioxidant enzymes in Brassica chinensis (Pak Choi) were examined. MnFe₂O₄/SEP showed superior Pb²⁺ adsorption compared to SEP alone, fitting Langmuir models, Dubinin-Radushkevich (D-R) model

SUBMITTER: Geng F 

PROVIDER: S-EPMC12526466 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature