Efficient degradation of imidacloprid in soil by thermally activated persulfate process: Performance, kinetics, and mechanisms

Zou, Ziyu; Huang, Xin; Guo, Xingle; Jia, Chunhong; Li, Baotong; Zhao, Ercheng; Wu, Junxue

doi:10.1016/j.ecoenv.2022.113815

Cited by 11 publications

(3 citation statements)

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“…The scavenger's test was carried out using Tert‐butanol, 1,4‐benzoquinone and methanol in order to find out the prominent reactive species (SO 4 ⋅ − , ⋅OH and O 2 ⋅ − ). Scheme 18 shows the degradation mechanism of imidacloprid into six degraded products which includes the denitrification, hydroxylation, oxidation and C−N bond cleavage [89] …”

Section: Approaches For the Elimination/degradation Of Imidaclopridmentioning

confidence: 99%

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A Review on Methods for the Elimination of Imidacloprid: 2018–2022

Kathuria,

Bhattu,

Bankar

et al. 2023

ChemistrySelect

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Imidacloprid, a neonicotinoid insecticide is used widely in agricultural fields to control insect pests. It exhibits insecticidal property by blocking the insect nicotinic acetylcholine receptors (nAChRs). However, its excessive use over the decades has become hazardous to the living beings and environment. Thus, it is crucial to find out an efficient and effective way for the elimination of imidacloprid from the environment. To meet this requirement, scientists across the world are working on various remediation approaches such as physical (adsorption), chemical (oxidation, hydrolysis, illumination) and biological (microbial degradation). This review focuses on various approaches for the elimination of imidacloprid from the environment and also highlights the associated merits and demerits. The review will pave the way for the scientific community to develop more simple and eco‐friendly approaches for imidacloprid elimination.

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Section: Approaches For the Elimination/degradation Of Imidaclopridmentioning

confidence: 99%

“…Scheme 18 shows the degradation mechanism of imidacloprid into six degraded products which includes the denitrification, hydroxylation, oxidation and CÀ N bond cleavage. [89]…”

mentioning

confidence: 99%

A Review on Methods for the Elimination of Imidacloprid: 2018–2022

Kathuria,

Bhattu,

Bankar

et al. 2023

ChemistrySelect

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“…•− could be effectively generated through the activation of persulfate (PS) with heating [16], ultrasound [17], ultraviolet radiation [18], transition metal ions [19], and carbon materials [20]. There are several disadvantages of homogeneous iron-activated PMS systems, including strict pH restriction, large input of iron ion dosage, and the introduction of anions related to iron salts like SO 4 2− or Cl − .…”

Section: Introductionmentioning

confidence: 99%

Facile Preparation of Fe3O4@SiO2 Derived from Iron-Rich Sludge as Magnetic Catalyst for the Degradation of Organic Contaminants by Peroxymonosulfate Activation

et al. 2022

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Iron-rich sludge, generated during flocculation/sedimentation processes by using Fe-based coagulant in drinking water treatment plants, could be used as a precursor to prepare an effective peroxymonosulfate (PMS) activator (Fe3O4@SiO2) for the ciprofloxacin (CIP) degradation via facile hydrothermal treatment. The catalytic performances of raw iron-rich sludge and Fe3O4@SiO2 were evaluated. The removal rate of CIP in Fe3O4@SiO2/PMS system increased from 44.7% to 82.8% within 60 min compared with the raw iron-rich sludge. The effects of PMS, catalyst loadings, temperature, and initial pH on the CIP degradation were examined, demonstrating that acidic conditions and higher temperatures were beneficial for CIP degradation. Both sulfate radicals (SO4•−) and hydroxyl radicals (•OH) contributed to the CIP degradation, and SO4•− was predominated in the Fe3O4@SiO2/PMS system, which was confirmed by the result of electron paramagnetic resonance (EPR) analysis and radical quenching tests. The mechanisms of the PMS activation process by Fe3O4@SiO2 were elucidated, and the influencing factors were among which the role of the iron mineral phase was emphatically explored. This study provides a facile method to convert the recycled waste iron-rich sludge to magnetic heterogeneous catalysts for CIP degradation with PMS activation.

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