Transformation and removal of imidacloprid mediated by silver ferrite nanoparticle facilitated peroxymonosulfate activation in water: Reaction rates, products, and pathways

Kan, Qihui; Lü, Kun; Dong, Song‐Tao; Shen, Di; Huang, Qingguo; Yang, Tong; Wu, Wei; Gao, Shixiang; Mao, Liang

doi:10.1016/j.envpol.2020.115438

Cited by 37 publications

(16 citation statements)

References 70 publications

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“…As is shown in Fig. 5(b), IMI may degrade into IMI‐urea (m/z 211.5), 4(5)‐hydroxy‐IMI (m/z 271.5), and the substance of 209.5 may be IMI‐desnitro or IMI‐olefin desnitro in WG, and then transformed into their derivatives, a substance of 176 37‐39 . Degradation by hydroxylation and nitro‐reduction are important forms of microbial degradation in soil and water environments, 40 and this is similar to the biodegradation of IMI in wastewater in this study.…”

Section: Resultsmentioning

confidence: 87%

“…5(a), except for IMI, four substances with m/z of 271.5, 238.5, 211.5, and 176 were detected in the algae‐wastewater group (AWG), implying that IMI may be converted into Nitrosimine (m/z 238.5), IMI‐urea (m/z 211.5), and 4(5)‐hydroxy‐IMI (m/z 271.5) in AWG. IMI‐urea (m/z 211.5) and a substance with an m/z of 176 may be the indirect product 37‐39 . It was also found that the organic degradation products of AWG and WG were slightly different.…”

Section: Resultsmentioning

confidence: 98%

“…Unlike in the AWG, IMI-desnitro or IMI-olefin was detected in WG (path c), so there were two possible pathways for the production of m/z 209.5: (i) the nitro of IMI may be lost by protonation of itself, 58 and (ii) by hydroxylation and dehydration of m/z 271.5. 24 Imidazole was the most reactive site of IMI, and the imidazole substitution group reaction was also known as an IMI detoxification reaction process (path b), so m/z 271.5 should be less toxic than the parent IMI. 56,57 Monohydroxylated IMI has been found in many metabolic and microbial transformations.…”

Section: Discussionmentioning

confidence: 99%

“…IMI-urea (m/z 211.5) and a substance with an m/z of 176 may be the indirect product. [37][38][39] It was also found that the organic degradation products of AWG and WG were slightly different. As is shown in Fig.…”

Section: Proposed Degradation Pathwaymentioning

confidence: 99%

“…18,19 Now many researches show that IMI can be recovered by physical methods, such as filtration and adsorption; however, the undegraded IMI may still harm the environment and its organisms. 20,21 Chemical degradation of IMI mainly includes photocatalytic degradation, 22 advanced oxidative degradation, 23,24 and electrochemical degradation. 25,26 Biodegradation of IMI mainly focuses on the degradation and transformation of microorganisms in environments, such as the removal of IMI by bacteria and algae in soil and water bodies.…”

Section: Introductionmentioning

confidence: 99%

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Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Cheng

Deng

Wang

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND With the rapid development of society, a large amount of wastewater and pesticides enter the water bodies globally, posing a threat to both the environment and the health of people and other living things. In this paper, an algal strain Scenedesmus sp. was isolated from a municipal wastewater treatment plant (WWTP); its interaction effect with wastewater bacteria on the removal of IMI and conventional pollutants in municipal wastewater was evaluated. RESULTS In this study, an algae‐bacteria system was constructed with municipal wastewater, with the aim of exploring the removal effects and mechanisms of the consortium system on Imidacloprid (IMI, 20 mg L−1 and 60 mg L−1) and conventional nutrients from municipal wastewater. The results showed that no IMI was removed under 20 μmol m−2 s−1. However, under 60 μmol m−2 s−1, more than 90% of IMI was removed in the algae‐wastewater group (AWG) with Scenedesmus sp.; this value is much higher than the 50.4% (20 mg L−1) and 36.1% (60 mg L−1) achieved by the wastewater group (WG) without Scenedesmus sp. Meanwhile, the removal efficiency of nitrogen was 82.3% (20 mg L−1) and 71.9% (60 mg L−1) in AWG, both of which are higher than the 73.4% and 59.1% in WG, respectively. Moreover, Scenedesmus sp. TXH has a strong resistance to IMI and 4 degradation products (including IMI‐urea, 4(5)‐hydroxy‐IMI, Nitrosimine, and a substance with m/z of 176) were found in AWG. CONCLUSION Using consortium to treat municipal wastewater containing IMI is an effective and safe way. © 2022 Society of Chemical Industry (SCI).

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Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 98%

Section: Discussionmentioning

confidence: 99%

Section: Proposed Degradation Pathwaymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Cheng

Deng

Wang

et al. 2022

J of Chemical Tech & Biotech

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Photodegradation of imidacloprid insecticide using polyethersulfone membranes modified with iron doped cerium oxide

Malatjie,

Moutloali,

Mishra

et al. 2024

J of Applied Polymer Sci

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The widespread accumulation of insecticides in water systems is a growing concern. This study reports efficient photodegradation of imidacloprid (IMD) insecticide using polyethersulfone (PES) membranes modified with iron‐doped cerium oxide (Fe‐CeO2). The work focuses on the modification of ultrafiltration polyethersulfone membranes with incremental amounts of Fe‐CeO2 photocatalysts (0.5–2.0 wt.%) using phase inversion method. An increase in Fe‐CeO2 content showed an improvement in surface roughness and porosity of membranes. Pure water flux (PWF) increased from 55.9 L m2 h−1 in M0 (PES) to 77.2 (M1, 0.5% Fe‐CeO2‐PES), 118.0 (M2, 1% Fe‐CeO2‐PES), 128.0 in M3 (1.5 wt.% Fe‐CeO2‐PES) and then decreased to 98.5 L m2 h−1 in M4 (2 wt.% Fe‐CeO2‐PES). This decrease is brought about by the high Fe‐CeO2 content, which minimizes the membranes' surface pores. Fe‐CeO2 photocatalysts are thought to give the membrane both hydrophilic and photocatalytic qualities because of their capacity to absorb light and create radical species that cause the photodegradation of IMD molecules. Consequently, under visible light irradiation, modified membranes demonstrated photocatalytic ability over IMD. Photocatalytic efficiencies of the membranes were found to be 5.2% (M0), 68.9 (M1), 75.8 (M2), 81.8 (M3), and 56.0% (M4), respectively, with M3 membranes showing the highest photocatalytic degradation efficiency and low leaching of metals. The remarkable performance observed by M3 membranes during both water filtration and photocatalytic performance may be an illustration of well dispersed photocatalyst which receives high absorption of light irradiation. Membranes with photocatalytic functionalities are tailored to exploit dual benefits of the membrane filtration and photocatalysis without compromising their original functions. However, maintaining the delicate balance of this phenomenon is still very challenging.

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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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Transformation and removal of imidacloprid mediated by silver ferrite nanoparticle facilitated peroxymonosulfate activation in water: Reaction rates, products, and pathways

Cited by 37 publications

References 70 publications

Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Efficient removal of Imidacloprid and nutrients by microalgae‐bacteria consortium in municipal wastewater: effects, mechanism, and importance of light

Photodegradation of imidacloprid insecticide using polyethersulfone membranes modified with iron doped cerium oxide

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

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