Remediation of thiamethoxam pollution in peanut field soil through co-application of biochar and iron-based materials
Year: 2025
Type: article
Abstract: Thiamethoxam (TMX), a neonicotinoid pesticide, poses environmental risks due to its mobility in soil. This study investigates the effect of co-applying biochar and iron-based materials (ZVI, Fe₃O₄) on TMX degradation in peanut field soils. Field experiments showed that while biochar alone delayed TMX degradation, its combination with iron powder significantly reduced bioavailable TMX (from 79% to 25.5%) and kernel residues. Co-application enhanced Fe(II) and amorphous iron oxides, promoting TMX breakdown, especially with straw biochar and ZVI. It also improved soil properties and peanut yield. These findings support using biochar–iron composites for TMX-contaminated soil remediation.
Authors: Yudong Wang, Yan Wang, Ruhai Liu, Likun He, Yunxu Wang, Fengzhu Zhou, Yuejiao Li, Yahui Qiu, Yuting Liu, Hao Zheng, Junhua Gong, Fengmin Li
Institution: Ocean University of China
Language: English
Subfield: Pollution
Field: Environmental Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $1,200
Awards: G4802588610, G586569557, G710160345
OpenAlex ID: W4410416552