Iron-modified biochar enhanced the activation of peracetic acid for removal of imidacloprid: efficiency, active species and catalytic mechanism.

Jinjin He, Baoyan Wang, Hongwei Sun, Yucan Liu, Gang Wang, Xiaoyong Yang, Yanxiang Zhang

Abstract read

In one paragraph

Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

Authors and funding

7 authors.

Jinjin HeSchool of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China.

Baoyan WangSchool of Civil Engineering, Yantai University, Yantai, 264005, China.

Hongwei SunSchool of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China. 15092166641@163.com.

Yucan LiuSchool of Civil Engineering, Yantai University, Yantai, 264005, China.

Gang WangSchool of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China.

Xiaoyong YangSchool of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China.

Yanxiang ZhangSchool of Environmental and Materials Engineering, Yantai University, Yantai, 264005, China. 15092166641@163.com.

Funding

Natural Science Foundation of Shandong Province ZR2022QE138

6 · The paper itself

Abstract

Imidacloprid (IMI) is a highly toxic organic pollutant. Therefore, effective IMI treatment methods must be developed. This study synthesized iron-modified rape straw biochar (Fe-RSB) to activate peracetic acid (PAA) for IMI removal from water. At the optimal concentrations of 0.55 g∙L− 1 for Fe-RSB and 0.25 mM for PAA, the removal of IMI reached 81.6% after 60 min. Additionally, the IMI removal was minimally affected over a broad pH range (3–11). CH3C(O)O· and CH3C(O)OO· played crucial roles in the IMI degradation. The degradation pathway of IMI consisted of three pathways, and the ecological hazards of most intermediates were lower than those of IMI. The effect of Cl⁻ on IMI removal was concentration dependent, 2 mM Cl⁻ showed slight inhibition, while 10 mM Cl⁻ promoted the degradation. In contrast, both HA and HCO3⁻ exhibited inhibitory effects across the tested concentration ranges. After five cycles, the removal of IMI reached 61.9%, indicating the stability of Fe-RSB. Overall, a new Fe-RSB/PAA process is proposed for the degradation of IMI.

Indexed as

CharcoalIronNeonicotinoidsNitro CompoundsPeracetic AcidWater Pollutants, ChemicalCatalysisHydrogen-Ion ConcentrationWater PurificationbiocharCharcoalimidaclopridIronNeonicotinoidsNitro CompoundsPeracetic AcidWater Pollutants, ChemicalAdvanced oxidation processesImidaclopridIron-modified biocharMechanismPeracetic acid

Identifiers

PMID41933105

DOI10.1038/s41598-026-46438-5

PMCPMC13194879

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LicenceCC BY-NC-ND

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.