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Cheng Y, Wang H, Wu Y, Ding Y, Peng C, Qi C, Xu A, Liu Y. Light-powered biodegradation of Imidacloprid by Scenedesmus sp. TXH202001: Assessing complete removal, metabolic pathways, and toxicity verification. JOURNAL OF HAZARDOUS MATERIALS 2024; 477:135345. [PMID: 39084013 DOI: 10.1016/j.jhazmat.2024.135345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 07/09/2024] [Accepted: 07/26/2024] [Indexed: 08/02/2024]
Abstract
Imidacloprid (IMI) is used extensively as an insecticide and poses a significant risk to both the ecological environment and human health. Biological methods are currently gaining recognition among the different strategies tested for wastewater treatment. This study focused on evaluating a recently discovered green alga, Scenedesmus sp. TXH202001, isolated from a municipal wastewater treatment plant (WWTP), exhibited notable capacity for IMI removal. After an 18-day evaluation, medium IMI concentrations (50 and 100 mg/L) facilitated the growth of microalgae whereas low (5 and 20 mg/L) and high (150 mg/L) concentrations had no discernible impact. No statistically significant disparities were detected in Fv/Fm, Malonaldehyde or Superoxide dismutase across all concentrations, suggesting Scenedesmus sp. TXH202001 exhibited notable resilience and adaptability to IMI conditions. Most notably, Scenedesmus sp. TXH202001 successfully eliminated > 99 % of IMI within 18 days subjected to IMI concentrations as high as 150 mg/L, which was contingent on the environmental factor of illumination. Molecular docking was used to identify the chemical reaction sites between IMI and typical degrading enzyme CYP450. Furthermore, the study revealed that the primary path for IMI removal was biodegradation and verified that the toxicity of the degraded product was lower than parent IMI in Caenorhabditis elegans. The efficacy of Scenedesmus sp. TXH202001 in wastewater was exceptional, thereby validating its practical utility.
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Affiliation(s)
- Yongtao Cheng
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Hongyu Wang
- School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan 430072, China
| | - Yuanyuan Wu
- University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Yuting Ding
- University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Chuanyue Peng
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China
| | - Cuicui Qi
- Anhui Provincial Academy of Eco-Environmental Science Research, Hefei 230061, China
| | - An Xu
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China; University of Science and Technology of China, Hefei, Anhui 230026, PR China.
| | - Ying Liu
- High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China.
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Peturai P, Sanguanpak S, Chiemchaisri C, Chiemchaisri W, Lu MC. Photocatalytic removals of imidacloprid insecticide in TiO 2- and Fe 2O 3-immobilized porous geopolymer granules. CHEMOSPHERE 2024; 362:142940. [PMID: 39059637 DOI: 10.1016/j.chemosphere.2024.142940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 07/04/2024] [Accepted: 07/23/2024] [Indexed: 07/28/2024]
Abstract
In this study, geopolymer catalysts were synthesized by incorporating different TiO2 (0, 7, and 14 wt%) and Fe2O3 content (0, 7, 14, and 20 wt%) into porous metakaolin-based geopolymer granules. TiO2- and Fe2O3-immobilized geopolymer granules were applied for photocatalytic removals of imidacloprid under UV-C irradiation. The analysis of the surface morphology of the Fe2O3 catalyst revealed its larger surface area predominated with meso- and macro-pores thus providing a larger area for photocatalysis. Meanwhile, the TiO2 catalyst had TiO2 nanoparticles filled up those mesopores and macropores in geopolymer resulting in its denser structure therefore limiting access of imidacloprid to the reactive sites. To maximize its photocatalytic activities, Fe2O3 and TiO2 could be immobilized into porous geopolymer matrix up to 20 and 14 wt%, respectively. The developed porous geopolymer had relatively stable imidacloprid adsorption capacities regardless of the TiO2 and Fe2O3 contents in their texture. After UV irradiation, their removal efficiencies were 94.85-100% and the photocatalytic degradation increased with the increase in TiO2 content (from 0 to 14 wt%) and Fe2O3 content (from 14 to 20 wt%). Nevertheless, Fe2O3-immobilized geopolymer granules posed a significantly higher kinetic rate (1.966 h-1) compared to that of TiO2 (0.154 h-1) at the same catalyst content (14 wt%). The newly developed Fe2O3-immobilized porous geopolymer catalysts could be effectively reused over 10 successive cycles during which the imidacloprid could be completely removed.
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Affiliation(s)
- Premjit Peturai
- Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok, 10900, Thailand
| | - Samunya Sanguanpak
- National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency (NSTDA), Pathumthani, 12120, Thailand
| | - Chart Chiemchaisri
- Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok, 10900, Thailand.
| | - Wilai Chiemchaisri
- Department of Environmental Engineering, Faculty of Engineering, Kasetsart University, 50 Ngam Wong Wan Road, Chatuchak, Bangkok, 10900, Thailand
| | - Ming Chun Lu
- Department of Environmental Engineering, National Chung Hsing University, Taichung, 40227, Taiwan
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Lykos C, Bairamis F, Efthymiou C, Konstantinou I. Synthesis and Characterization of Composite WO 3 Fibers/g-C 3N 4 Photocatalysts for the Removal of the Insecticide Clothianidin in Aquatic Media. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1045. [PMID: 38921921 PMCID: PMC11206630 DOI: 10.3390/nano14121045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/07/2024] [Accepted: 06/13/2024] [Indexed: 06/27/2024]
Abstract
Photocatalysis is a prominent alternative wastewater treatment technique that has the potential to completely degrade pesticides as well as other persistent organic pollutants, leading to detoxification of wastewater and thus paving the way for its efficient reuse. In addition to the more conventional photocatalysts (e.g., TiO2, ZnO, etc.) that utilize only UV light for activation, the interest of the scientific community has recently focused on the development and application of visible light-activated photocatalysts like g-C3N4. However, some disadvantages of g-C3N4, such as the high recombination rate of photogenerated charges, limit its utility. In this light, the present study focuses on the synthesis of WO3 fibers/g-C3N4 Z-scheme heterojunctions to improve the efficiency of g-C3N4 towards the photocatalytic removal of the widely used insecticide clothianidin. The effect of two different g-C3N4 precursors (urea and thiourea) and of WO3 fiber content on the properties of the synthesized composite materials was also investigated. All aforementioned materials were characterized by a number of techniques (XRD, SEM-EDS, ATR-FTIR, Raman spectroscopy, DRS, etc.). According to the results, mixing 6.5% W/W WO3 fibers with either urea or thiourea derived g-C3N4 significantly increased the photocatalytic activity of the resulting composites compared to the precursor materials. In order to further elucidate the effect of the most efficient composite photocatalyst in the degradation of clothianidin, the generated transformation products were tentatively identified through UHPLC tandem high-resolution mass spectroscopy. Finally, the detoxification effect of the most efficient process was also assessed by combining the results of an in-vitro methodology and the predictions of two in-silico tools.
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Affiliation(s)
- Christos Lykos
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Feidias Bairamis
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Christina Efthymiou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
| | - Ioannis Konstantinou
- Department of Chemistry, University of Ioannina, 45110 Ioannina, Greece; (C.L.); (F.B.); (C.E.)
- Institute of Environment and Sustainable Development, University Research Center of Ioannina (URCI), 45110 Ioannina, Greece
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Herrera W, Vera J, Hermosilla E, Diaz M, Tortella GR, Dos Reis RA, Seabra AB, Diez MC, Rubilar O. The Catalytic Role of Superparamagnetic Iron Oxide Nanoparticles as a Support Material for TiO 2 and ZnO on Chlorpyrifos Photodegradation in an Aqueous Solution. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:299. [PMID: 38334570 PMCID: PMC10856829 DOI: 10.3390/nano14030299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 01/19/2024] [Accepted: 01/24/2024] [Indexed: 02/10/2024]
Abstract
Chlorpyrifos (CP) is a globally used pesticide with acute toxicity. This work studied the photocatalytic degradation of CP using TiO2, ZnO nanoparticles, and nanocomposites of TiO2 and ZnO supported on SPIONs (SPION@SiO2@TiO2 and SPION@SiO2@ZnO). The nanocomposites were synthesized by multi-step incipient wetness impregnation. The effects of the initial pH, catalyst type, and dose were evaluated. The nanocomposites of SPION@SiO2@TiO2 and SPION@SiO2@ZnO showed higher CP photodegradation levels than free nanoparticles, reaching 95.6% and 82.3%, respectively, at pH 7. The findings indicate that iron oxide, as a support material for TiO2 and ZnO, extended absorption edges and delayed the electron-hole recombination of the nanocomposites, improving their photocatalytic efficiency. At the same time, these nanocomposites, especially SPION@SiO2@TiO2, showed efficient degradation of 3,5,6-trichloropyridinol (TCP), one of the final metabolites of CP. The stability and reuse of this nanocomposite were also evaluated, with 74.6% efficiency found after six cycles. Therefore, this nanomaterial represents an eco-friendly, reusable, and effective alternative for the degradation of chlorpyrifos in wastewater treatment.
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Affiliation(s)
- Wence Herrera
- Programa de Doctorado en Ciencias de Recursos Naturales, Universidad de La Frontera, Temuco 4780000, Chile
| | - Joelis Vera
- Programa de Doctorado en Ciencias de la Ingeniería Mención Bioprocesos, Universidad de la Frontera, Temuco 4780000, Chile;
| | - Edward Hermosilla
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Marcela Diaz
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Gonzalo R. Tortella
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
| | - Roberta Albino Dos Reis
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, SP, Brazil; (R.A.D.R.); (A.B.S.)
| | - Amedea B. Seabra
- Center for Natural and Human Sciences, Universidade Federal do ABC, Santo André 09210-580, SP, Brazil; (R.A.D.R.); (A.B.S.)
| | - María Cristina Diez
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
- Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4780000, Chile
| | - Olga Rubilar
- Centro de Excelencia en Investigación Biotecnológica Aplicada al Medio Ambiente CIBAMA-BIOREN, Universidad de La Frontera, Temuco 4780000, Chile; (E.H.); (M.D.); (G.R.T.); (M.C.D.)
- Departamento de Ingeniería Química, Universidad de La Frontera, Temuco 4780000, Chile
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5
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Khalid H, Haq AU, Fawad Zahoor A, Irfan A, Zaki MEA. An investigation of Ca-doped MgO nanoparticles for the improved catalytic degradation of thiamethoxam pesticide subjected to visible light irradiation. Sci Rep 2024; 14:1126. [PMID: 38212536 PMCID: PMC10784470 DOI: 10.1038/s41598-024-51738-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 01/09/2024] [Indexed: 01/13/2024] Open
Abstract
The remediation of pesticides from the environment is one of the most important technology nowadays. Herein, magnesium oxide (MgO) nanoparticles and calcium-doped magnesium oxide (Ca-doped MgO) nanoparticles were synthesized by the co-precipitation method and were used for the degradation of thiamethoxam pesticide in aqueous media. Characterization of the MgO and Ca-doped MgO nanoparticles were performed by XRD, SEM, EDX, and FT-IR analysis to verify the synthesis and variations in chemical composition. The band gap energy and crystalline size of MgO and Ca-doped MgO nanoparticles were found to be 4.8 and 4.7 eV and 33 and 34 nm respectively. The degradation of thiamethoxam was accomplished regarding the impact of catalyst dosage, contact time, temperature, pH, and initial pesticide concentration. The pH study indicates that degradation of thiamethoxam depends on pH and maximum degradation (66%) was obtained at pH 5 using MgO nanoparticles. In contrast, maximum degradation (80%) of thiamethoxam was observed at pH 8 employing Ca-doped MgO nanoparticles. The percentage degradation of thiamethoxam was initially increasing but decreased at higher doses of the catalysts. The degradation of the pesticide was observed to be increased with an increase in contact time while high at room temperature but decreased with a temperature rise. The effect of the initial concertation of pesticide indicates that degradation of pesticide increases at low concentrations but declines at higher concentrations. This research study reveals that doping of MgO nanoparticles with calcium enhanced the degradation of thiamethoxam pesticide in aqueous media.
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Affiliation(s)
- Huma Khalid
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Atta Ul Haq
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan.
| | - Ameer Fawad Zahoor
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Ali Irfan
- Department of Chemistry, Government College University Faisalabad, Faisalabad, Pakistan
| | - Magdi E A Zaki
- Department of Chemistry, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 13623, Riyadh, Saudi Arabia.
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6
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Gadore V, Mishra SR, Ahmaruzzaman M. One-pot synthesis of CdS/CeO 2 heterojunction nanocomposite with tunable bandgap for the enhanced advanced oxidation process. Sci Rep 2023; 13:7708. [PMID: 37173397 PMCID: PMC10182039 DOI: 10.1038/s41598-023-34742-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 05/06/2023] [Indexed: 05/15/2023] Open
Abstract
Herein, a binary nanocomposite CdS/CeO2 has been fabricated via a one-pot co-precipitation method for the degradation of Rose Bengal (RB) dye. The structure, surface morphology, composition, and surface area of the prepared composite were characterized by transmission electron microscopy, scanning electron microscopy, X-ray powder diffraction, X-ray photoelectron spectroscopy, Brunaur-Emmett-Teller analysis UV-Vis diffuse reflectance spectroscopy and photoluminescence spectroscopy. The prepared CdS/CeO2(1:1) nanocomposite has a particle size of 8.9 ± 0.3 nm and a surface area of 51.30 m2/g. All the tests indicated the agglomeration of CdS nanoparticles over the surface of CeO2. The prepared composite showed excellent photocatalytic activity in the presence of hydrogen peroxide under solar irradiation towards the degradation of Rose Bengal. Near to about complete degradation of 190 ppm of RB dye could be achieved within 60 min under optimum conditions. The enhanced photocatalytic activity was attributed to the delayed charge recombination rate and a lower bandgap of the photocatalyst. The degradation process was found to follow pseudo-first-order kinetics with a rate constant of 0.05824 min-1. The prepared sample showed excellent stability and reusability and maintained about 87% of the photocatalytic efficiency till the fifth cycle. A plausible mechanism for the degradation of the dye is also presented based on the scavenger experiments.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, Silchar, Assam, 788010, India.
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7
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Quan L, Cheng Y, Wang J, Chen Y, Li D, Wang S, Li B, Zhang Z, Yang L, Wu L. Efficient removal of thiamethoxam by freshwater microalgae Scenedesmus sp. TXH: Removal mechanism, metabolic degradation and application. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2023; 332:117388. [PMID: 36731413 DOI: 10.1016/j.jenvman.2023.117388] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 01/20/2023] [Accepted: 01/25/2023] [Indexed: 06/18/2023]
Abstract
Neonicotinoids, as the most widely used pesticides in the world, help improve the production of crops. Meanwhile, it also brings potential threats to surrounding environments and other organisms because of its wide use and even abuse. In this study, Scenedesmus sp. TXH isolated from a wastewater treatment plant was used to remove the neonicotinoid pesticide thiamethoxam (THIA). The removal efficiency, degradation pathway, metabolite fate of THIA and physicochemical effects on microalgae cells were studied. Meanwhile, the feasibility of using microalgal technology to remove THIA from municipal wastewater was also explored. The results showed that 5-40 mg/L of THIA slightly promoted the growth of microalgae, while 60 mg/L THIA severely inhibited microalgal growth. It was observed that malondialdehyde content and superoxide dismutase activity in 60 mg/L THIA group increased significantly (p < 0.05) in the early stage of the experiment, indicating that THIA caused oxidative damage to microalgae. Scenedesmus sp. TXH showed high-efficient degradation ability and high resistance to THIA, with 100% removal of THIA at 5, 20 and 40 mg/L groups and 97.5% removal of THIA at 60 mg/L group on day 12. THIA was mainly removed by biodegradation, accounting for 78.18%, 93.50%, 96.81% and 91.35% under 5, 20, 40 and 60 mg/L on day 12, respectively. Six degradation products were identified, and four potential degradation pathways were proposed. In practical wastewater, the removal efficiency of total dissolved nitrogen, total dissolved phosphorus, ammonia nitrogen and THIA reached 85.68%, 90.00%, 98.43% and 100%, respectively, indicating that Scenedesmus sp. TXH was well adapted to the wastewater and effectively removed THIA and conventional pollutants.
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Affiliation(s)
- Linghui Quan
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yongtao Cheng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Jiping Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yulin Chen
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Diantong Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Shiqi Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Bolin Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zulin Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; The James Hutton Institute, Craigiebuckler, Aberdeen, ABI5 8QH, UK
| | - Lie Yang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Li Wu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; State Environmental Protection Key Laboratory of Wetland Ecology and Vegetation Restoration, School of Environment, Northeast Normal University, Changchun, 130117, PR China.
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8
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Schwarze M, Borchardt S, Frisch ML, Collis J, Walter C, Menezes PW, Strasser P, Driess M, Tasbihi M. Degradation of Phenol via an Advanced Oxidation Process (AOP) with Immobilized Commercial Titanium Dioxide (TiO 2) Photocatalysts. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:1249. [PMID: 37049342 PMCID: PMC10097325 DOI: 10.3390/nano13071249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 06/19/2023]
Abstract
Four commercial titanium dioxide (TiO2) photocatalysts, namely P25, P90, PC105, and PC500, were immobilized onto steel plates using a sol-gel binder and investigated for phenol degradation under 365 nm UV-LED irradiation. High-performance liquid chromatography (HPLC) and total organic carbon (TOC) analyses were performed to study the impact of three types of oxygen sources (air, dispersed synthetic air, and hydrogen peroxide) on the photocatalytic performance. The photocatalyst films were stable and there were significant differences in their performance. The best result was obtained with the P90/UV/H2O2 system with 100% degradation and about 70% mineralization within 3 h of irradiation. The operating conditions varied, showing that water quality is crucial for the performance. A wastewater treatment plant was developed based on the lab-scale results and water treatment costs were estimated for two cases of irradiation: UV-LED (about 600 EUR/m3) and sunlight (about 60 EUR/m3). The data show the high potential of immobilized photocatalysts for pollutant degradation under advanced oxidation process (AOP) conditions, but there is still a need for optimization to further reduce treatment costs.
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Affiliation(s)
- Michael Schwarze
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Steffen Borchardt
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Marvin L. Frisch
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Jason Collis
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Carsten Walter
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Prashanth W. Menezes
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
- Materials Chemistry Group for Thin Film Catalysis—CatLab, Helmholtz-Zentrum Berlin für Materialien und Energie, Albert-Einstein-Str. 15, 12489 Berlin, Germany
| | - Peter Strasser
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Matthias Driess
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
| | - Minoo Tasbihi
- Department of Chemistry, Technische Universität Berlin, Straße des 17. Juni 124, 10623 Berlin, Germany
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9
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Photocatalytic Removal of Thiamethoxam and Flonicamid Pesticides Present in Agro-Industrial Water Effluents. Catalysts 2023. [DOI: 10.3390/catal13030516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
Abstract
Pesticide residues, when present in agricultural wastewater, constitute a potential risk for the environment and human health. Hence, focused actions for their abatement are of high priority for both the industrial sectors and national authorities. This work evaluates the effectiveness of the photocatalytic process to decompose two frequently detected pesticides in the water effluents of the fruit industry: thiamethoxam-a neonicotinoid compound and flonicamid-a pyridine derivative. Their photocatalytic degradation and mineralization were evaluated in a lab-scale photocatalytic batch reactor under UV-A illumination with the commercial photocatalyst Evonik P25 TiO2 by employing different experimental conditions. The complete degradation of thiamethoxam was achieved after 90 min, when the medium was adjusted to natural or alkaline pH. Flonicamid was proven to be a more recalcitrant substance and the removal efficiency reached ~50% at the same conditions, although the degradation overpassed 75% in the acidic pH medium. Overall, the pesticides’ degradation follows the photocatalytic reduction pathways, where positive charged holes and hydroxyl radicals dominate as reactive species, with complete mineralization taking place after 4 h, regardless of the pH medium. Moreover, it was deduced that the pesticides’ degradation kinetics followed the Langmuir-Hinshelwood (L-H) model, and the apparent rate constant, the initial degradation rate, as well as the L-H model parameters, were determined for both pesticides.
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10
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Chen J, Ren Q, Xu C, Chen B, Chen S, Ding Y, Jin Z, Guo W, Jia X. Efficient degradation of imidacloprid in wastewater by a novel p-n heterogeneous Ag2O/BiVO4/diatomite composite under hydrogen peroxide. J IND ENG CHEM 2023. [DOI: 10.1016/j.jiec.2023.03.034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/09/2023]
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11
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Gadore V, Mishra SR, Ahmaruzzaman M. Green and environmentally sustainable fabrication of SnS 2 quantum dots/chitosan nanocomposite for enhanced photocatalytic performance: Effect of process variables, and water matrices. JOURNAL OF HAZARDOUS MATERIALS 2023; 444:130301. [PMID: 36403450 DOI: 10.1016/j.jhazmat.2022.130301] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Revised: 10/17/2022] [Accepted: 10/30/2022] [Indexed: 05/27/2023]
Abstract
Concerns over the availability of clean water and the quality of treated wastewater are significant problems that call for an appropriate solution to improve the water quality. The present work emphasized the synthesis of novel SnS2 quantum dots (QDs) deposited on chitosan via a facile green precipitation method involving neem (Azadirachta indica) leaf extract and investigating its photocatalytic performance for the degradation of Crystal violet (CV) dye under varying reaction parameters, other organic and inorganic salts and water matrices. The crystal structure, surface morphology, and elemental composition of the prepared SnS2 (QDs)/Ch composite were evaluated by powder X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL) and energy dispersive X-ray analysis (EDAX) techniques. The average size of SnS2/Chitosan nanoparticles was calculated to be 8.8 nm using XRD, with the average diameter of SnS2 QDs to be 3.3 nm from TEM. UV-visible spectroscopy was used to investigate its optical properties. The direct band gap of SnS2/Chitosan estimated from Tauc's plot came to be 2.5 eV. The prepared novel SnS2/Ch composite showed outstanding photocatalytic activity for the degradation of CV through the Advanced Oxidation Process (AOP). The fabricated photocatalyst caused 98.60 ± 1.34 % degradation of CV within a short period of 70 min under optimum conditions. The photodegradation reaction followed pseudo-first-order rate kinetics with a rate constant of 0.0815 min-1. Furthermore, the photocatalyst showed high stability and was reusable for up to four cycles. The present work fulfils the aim of designing a novel, green, and efficient visible light-active nano-photocatalyst.
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Affiliation(s)
- Vishal Gadore
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Soumya Ranjan Mishra
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology Silchar, 788010 Assam, India.
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12
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Biodegradation and Metabolic Pathway of the Neonicotinoid Insecticide Thiamethoxam by Labrys portucalensis F11. Int J Mol Sci 2022; 23:ijms232214326. [PMID: 36430799 PMCID: PMC9694413 DOI: 10.3390/ijms232214326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/06/2022] [Accepted: 11/15/2022] [Indexed: 11/22/2022] Open
Abstract
Thiamethoxam (TMX) is an effective neonicotinoid insecticide. However, its widespread use is detrimental to non-targeted organisms and water systems. This study investigates the biodegradation of this insecticide by Labrys portucalensis F11. After 30 days of incubation in mineral salt medium, L. portucalensis F11 was able to remove 41%, 35% and 100% of a supplied amount of TMX (10.8 mg L-1) provided as the sole carbon and nitrogen source, the sole carbon and sulfur source and as the sole carbon source, respectively. Periodic feeding with sodium acetate as the supplementary carbon source resulted in faster degradation of TMX (10.8 mg L-1); more than 90% was removed in 3 days. The detection and identification of biodegradation intermediates was performed by UPLC-QTOF/MS/MS. The chemical structure of 12 metabolites is proposed. Nitro reduction, oxadiazine ring cleavage and dechlorination are the main degradation pathways proposed. After biodegradation, toxicity was removed as indicated using Aliivibrio fischeri and by assessing the synthesis of an inducible β-galactosidase by an E. coli mutant (Toxi-Chromo test). L. portucalensis F11 was able to degrade TMX under different conditions and could be effective in bioremediation strategies.
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13
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Sharma S, Basu S. Visible-light-induced photocatalytic response of easily recoverable Mn 2O 3/SiO 2 monolith in centimeter-scale towards degradation of ofloxacin: Performance evaluation and product analysis. CHEMOSPHERE 2022; 307:135973. [PMID: 35952781 DOI: 10.1016/j.chemosphere.2022.135973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 06/15/2023]
Abstract
Monolithic-photocatalysts being easily recoverable are a suitable alternative to powdered materials for pollutant treatment. This study was conducted to prepare Mn2O3/SiO2 monoliths by wet-impregnating Mn(NO3)2․4H2O in SiO2 monoliths. The crystallinity of oxide was affirmed via XRD analyses, whereas EDS and elemental-mapping, and XPS studies revealed the constituent elements and their oxidation states. FESEM images confirmed porous morphology, while BET-analysis confirmed its mesoporous nature (∼8.44 nm) and enormous surface area (∼241 m2/g). The DRS and PL studies disclosed that Mn2O3/SiO2 monoliths consisted of narrow band-gap of ∼2.14 eV and had suitable electron/hole separation. The photocatalytic effectiveness of the monolith had been checked by degrading model dye methylene blue (MB) and antibiotic ofloxacin (OF). The influence of various reaction parameters for degradation, i.e., monolith dose, solution-pH, illumination-area, scavengers, etc., was noted. At optimal reaction conditions, outstanding competence was achieved for MB (95.23%; 0.0225 min-1) and decent results were obtained for OF-degradation (73.2%; 0.0096 min-1). The recyclable nature of the catalyst (∼12.7%-reduction in effectiveness after 10 successive cycles) was vindicated by several characterization studies after reusability. The O2•-radicals participated majorly in the degradation reaction. The reaction intermediates plus products, generated after the degradation of had been identified via LC/MS study. The mineralization extent of the OF and MB was also gauged through TOC analyses. The photocatalytic treatment of raw textile wastewater manifested ∼57.8% COD and 53% TOC-removal. This study emphasizes the competence of Mn2O3/SiO2 monoliths for the photocatalytic abatement of refractory organic contaminants.
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Affiliation(s)
- Surbhi Sharma
- School of Chemistry and Biochemistry, Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering & Technology, Patiala, 147004, India
| | - Soumen Basu
- School of Chemistry and Biochemistry, Affiliate Faculty-TIET-Virginia Tech Center of Excellence in Emerging Materials, Thapar Institute of Engineering & Technology, Patiala, 147004, India.
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14
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Real FJ, Acero JL, Benitez FJ, Matamoros E. Elimination of neonicotinoids by ozone-based advanced oxidation processes: Kinetics and performance in real water matrices. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121975] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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15
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Cheng Y, Wang H, Deng Z, Wang J, Liu Z, Chen Y, Ma Y, Li B, Yang L, Zhang Z, Wu L. Efficient removal of Imidacloprid and nutrients by algae-bacteria biofilm reactor (ABBR) in municipal wastewater: Performance, mechanisms and the importance of illumination. CHEMOSPHERE 2022; 305:135418. [PMID: 35750233 DOI: 10.1016/j.chemosphere.2022.135418] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2022] [Revised: 04/25/2022] [Accepted: 06/16/2022] [Indexed: 06/15/2023]
Abstract
Neonicotinoids, such as Imidacloprid (IMI), are frequently detected in water and wastewater, posing a threat on both the environment and the health of living things. In this work, a novel algae-bacteria biofilm reactor (ABBR) was constructed to remove IMI and conventional nutrients from municipal wastewater, aiming to explore the removal effect and advantage of ABBR. Results showed that ABBR achieved 74.9% removal of IMI under 80 μmol m-2·s-1 light, higher than photobioreactor (PBR) without biofilm (61.2%) or ABBR under 40 μmol m-2·s-1 light (48.4%) after 16 days of operation. Moreover, it also showed that ABBR allowed a marked improvement on the removal of total dissolved nitrogen (TDN), total dissolved phosphorus (TDP) and soluble chemical oxygen demand (sCOD). ABBR showed different IMI removal efficiencies and bacterial communities under different light conditions, indicating that light played an important role in driving ABBR. The merits of ABBR are including (i) ABBR showed rapid pollutant removal in a short time, (ii) in ABBR, stable consortiums were formed and chlorophyll content in effluent was very low, (iii) compared with PBR, degradation products in ABBR showed lower biological toxicity. Our study highlights the benefits of ABBR on IMI removing from municipal wastewater and provides an effective and environment-friendly engineering application potential of IMI removal.
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Affiliation(s)
- Yongtao Cheng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Hongyu Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zhikang Deng
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Jiping Wang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zhe Liu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yulin Chen
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Yongfei Ma
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Bolin Li
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Lie Yang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China
| | - Zulin Zhang
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China; The James Hutton Institute, Craigiebuckler, Aberdeen, ABI5 8QH, UK
| | - Li Wu
- Hubei Key Laboratory of Mineral Resources Processing and Environment, School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, 430070, PR China.
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16
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Kuechle KJ, Webb EB, Mengel D, Main AR. Seed treatments containing neonicotinoids and fungicides reduce aquatic insect richness and abundance in midwestern USA-managed floodplain wetlands. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:45261-45275. [PMID: 35143002 DOI: 10.1007/s11356-022-18991-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 01/27/2022] [Indexed: 06/14/2023]
Abstract
Agrochemicals including neonicotinoid insecticides and fungicides are frequently applied as seed treatments on corn, soybeans, and other common row crops. Crops grown from pesticide-treated seed are often directly planted in managed floodplain wetlands and used as a soil disturbance or food resource for wildlife. We quantified invertebrate communities within mid-latitude floodplain wetlands and assessed their response to use of pesticide-treated seeds within the floodplain. We collected and tested aqueous and sediment samples for pesticides in addition to sampling aquatic invertebrates from 22 paired wetlands. Samples were collected twice in 2016 (spring [pre-water level drawdown] and autumn [post-water level flood-up]) followed by a third sampling period (spring 2017). Meanwhile, during the summer of 2016, a portion of study wetlands were planted with either pesticide-treated or untreated corn seed. Neonicotinoid toxic equivalencies (NI-EQs) for sediment (X̅ = 0.58 μg/kg), water (X̅ = 0.02 μg/L), and sediment fungicide concentrations (X̅ = 0.10 μg/kg) were used to assess potential effects on wetland invertebrates. An overall decrease in aquatic insect richness and abundance was associated with greater NI-EQs in wetland water and sediments, as well as with sediment fungicide concentration. Post-treatment, treated wetlands displayed a decrease in insect taxa-richness and abundance before recovering by the spring of 2017. Information on timing and magnitude of aquatic insect declines will be useful when considering the use of seed treatments for wildlife management. More broadly, this study brings attention to how agriculture is used in wetland management and conservation planning.
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Affiliation(s)
- Kyle J Kuechle
- Missouri Cooperative Fish and Wildlife Research Unit, School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA.
- Great Plains Regional Office, Ducks Unlimited, Inc, 2525 River Road, Bismarck, ND, 58503, USA.
| | - Elisabeth B Webb
- Missouri Cooperative Fish and Wildlife Research Unit, School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
- U.S. Geological Survey, Missouri Cooperative Fish and Wildlife Research Unit, Columbia, MO, 65211, USA
| | - Doreen Mengel
- Missouri Department of Conservation, Science Branch, Columbia, MO, 65201, USA
| | - Anson R Main
- Missouri Cooperative Fish and Wildlife Research Unit, School of Natural Resources, University of Missouri, Columbia, MO, 65211, USA
- Department of Pesticide Regulation, California Environmental Protection Agency, Sacramento, CA, 95812, USA
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17
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Sharma S, Basu S. Construction of an efficient and durable hierarchical porous CuO/SiO2 monolith for synergistically boosting the visible-light-driven degradation of organic pollutants. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2021.119759] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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18
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Manonmani G, Sandhiya L, Senthilkumar K. Mechanism, Kinetics, and Ecotoxicity Assessment of ·OH-Initiated Oxidation Reactions of Sulfoxaflor. J Phys Chem A 2021; 125:10052-10064. [PMID: 34755512 DOI: 10.1021/acs.jpca.1c05030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ·OH-initiated reaction mechanism and kinetics of sulfoxaflor were investigated by using electronic structure calculations. The possible hydrogen atom and cyano group abstraction reaction pathways were studied, and the calculated thermochemical parameters show that the hydrogen atom abstraction from the C7 carbon atom is the more favorable reaction pathway. The subsequent reactions for the favorable intermediate (I4) with other atmospheric reactive species, such as O2, H2O, HO2·, and NOx· (x = 1, 2), were studied in detail. The products identified from the subsequent reactions could contribute to secondary organic aerosol (SOA) formation in the atmosphere. The intermediates and products formed from the initial and subsequent reactions are equally as toxic as the parent sulfoxaflor. At 298 K, the rate constant calculated for the formation of the favorable intermediate I4 is 2.54 × 10-12 cm3 molecule-1 s-1, which shows that the lifetime of sulfoxaflor is 54 h. The excited-state calculation performed through time-dependent density functional theory shows that the photolysis of the title molecule is unlikely in the atmosphere. The global warming potentials (GWPs) for different time horizons, photochemical ozone creation potential (POCP), and ecotoxicity analysis were also studied for the insecticide sulfoxaflor.
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Affiliation(s)
- G Manonmani
- Department of Physics, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
| | - L Sandhiya
- Council of Scientific and Industrial Research-National Institute of Science, Technology and Development Studies, New Delhi 110012, India
| | - K Senthilkumar
- Department of Physics, Bharathiar University, Coimbatore 641 046, Tamil Nadu, India
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19
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Liu H, Tang X, Xu X, Dai Y, Zhang X, Yang Y. Potential for phytoremediation of neonicotinoids by nine wetland plants. CHEMOSPHERE 2021; 283:131083. [PMID: 34182627 DOI: 10.1016/j.chemosphere.2021.131083] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 05/28/2021] [Accepted: 06/02/2021] [Indexed: 06/13/2023]
Abstract
Broad-spectrum insecticides such as neonicotinoids tend to accumulate and detrimentally impact natural ecosystems. Accordingly, we aimed to assess the neonicotinoid phytoremediation abilities of nine wetland plant species commonly used in constructed wetland systems: Acorus calamus, Typha orientalis, Arundo donax, Thalia dealbata, Canna indica, Iris pseudacorus, Cyperus alternifolius, Cyperus papyrus and Juncus effusus. We assessed their removal of six neonicotinoids and explored the mechanisms responsible for the observed removal in a 28-day experiment. The planted systems effectively removed the neonicotinoids, with removal efficiencies of 9.5-99.9%. Compared with the other neonicotinoids, imidacloprid, thiacloprid and acetamiprid were most readily removed in the planted systems. C. alternifolius and C. papyrus exhibited the best removal performance for all six neonicotinoids. Based on our assessment of mass balance, the main removal processes were biodegradation and plant accumulation. Plants can enhance neonicotinoid removal through enhancing biodegradation. The differences in transport and accumulation behaviors may be related to plant species and physicochemical properties of neonicotinoids. Further research is merited on the toxicity of neonicotinoids to plants and microorganisms and the metabolic pathways by which neonicotinoids are broken down in wetland systems.
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Affiliation(s)
- Huanping Liu
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China
| | - Xiaoyan Tang
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China.
| | - Xiaomin Xu
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China
| | - Yunv Dai
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China
| | - Xiaomeng Zhang
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China
| | - Yang Yang
- Institute of Hydrobiology, Jinan University, Guangzhou, 510632, China; Engineering Research Center of Tropical and Subtropical Aquatic Ecological Engineering, Ministry of Education, Guangzhou, China.
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20
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Mohanta D, Ahmaruzzaman M. Au-SnO 2-CdS ternary nanoheterojunction composite for enhanced visible light-induced photodegradation of imidacloprid. ENVIRONMENTAL RESEARCH 2021; 201:111586. [PMID: 34175290 DOI: 10.1016/j.envres.2021.111586] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 06/15/2021] [Accepted: 06/20/2021] [Indexed: 06/13/2023]
Abstract
Herein, we have developed a novel synthetic strategy for the fabrication of Au-SnO2-CdS ternary nano-heterojunction catalyst and its utility towards LED light derived photocatalytic degradation of imidacloprid has been evaluated. The synthesized ternary nanocomposite was characterized using sophisticated analytical techniques to evaluate the catalyst's morphological, structural and surface chemical properties. The photocatalytic activity of the ternary catalyst towards the degradation of imidacloprid was evaluated under LED irradiation. Approximately 95% of the degradation efficiency was achieved with a pseudo-first-order reaction rate of 15.6 × 10-3 min-1. The degradation efficiency of Au-SnO2-CdS nano-catalyst was found to be ~1.2, 1.4 and 2.1 times to that of the pristine Au, CdS and SnO2 nanomaterials under similar experimental conditions. The effect of variation of parameters like contact time, initial pollutant concentration and pH on degradation efficiency has also been investigated. Moreover, the identification of various degradation products and reactive intermediates were made with high-performance liquid chromatography and electron spin resonance techniques.
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Affiliation(s)
- Dipyaman Mohanta
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India.
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21
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Chen A, Li W, Zhang X, Shang C, Luo S, Cao R, Jin D. Biodegradation and detoxification of neonicotinoid insecticide thiamethoxam by white-rot fungus Phanerochaete chrysosporium. JOURNAL OF HAZARDOUS MATERIALS 2021; 417:126017. [PMID: 34004582 DOI: 10.1016/j.jhazmat.2021.126017] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Revised: 04/02/2021] [Accepted: 04/26/2021] [Indexed: 06/12/2023]
Abstract
The extensive use of neonicotinoid pesticides in the past two decades caused serious impacts on many kinds of living beings. Therefore, it has been strongly suggested to detoxify and eliminate neonicotinoids' residual levels in environment. Here, the degradation and detoxification of thiamethoxam (THX) by white-rot fungus Phanerochaete chrysosporium was conducted. Results shown that P. chrysosporium can tolerate THX and degraded 49% of THX after incubation for 15 days, and then 98% for 25 days at the initial concentration of 10 mg/L, which indicates the excellent degradation ability of this fungus to THX. Based on the by-products identified, THX underwent dechlorination, nitrate reduction, and C-N cleavage between the 2-chlorothiazole ring and oxadiazine. (Z)-N-(3-methyl-1,3,5-oxadiazinan-4-ylidene)nitramide and 3-methyl-1,3,5-oxadiazinan-4-imine were identified as the main metabolites. The impacts of THX and its corresponding degradation intermediates on the growth of E. coil and Microcystis aeruginosa as well as the germination of rape and cabbage demonstrated that P. chrysosporium effectively degrades THX into metabolites and reduces its biotoxicity. The present work demonstrates that P. chrysosporium can be effectively used for degradation and detoxification of THX.
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Affiliation(s)
- Anwei Chen
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China.
| | - Wenjie Li
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Xiaoxiao Zhang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Cui Shang
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Si Luo
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Ruoyu Cao
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
| | - Doudou Jin
- College of Resources and Environment, Hunan Agricultural University, Changsha 410128, PR China
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22
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Zhang H, Shen K, Wu R, Li Z, Wang X, Wang D, Zhan M, Xu W, Gao Y, Lu L. Occurrence and distribution of neonicotinoids and characteristic metabolites in paired urine and indoor dust from young adults: Implications for human exposure. ENVIRONMENTAL RESEARCH 2021; 199:111175. [PMID: 33964309 DOI: 10.1016/j.envres.2021.111175] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 06/12/2023]
Abstract
Neonicotinoid insecticides (NEOs) are widely used for pest control worldwide. The profile of NEOs in paired urine and indoor dust has not yet been reported in China. In this study, 40 paired samples (i.e., 160 urine and 40 indoor dust) were collected from university students and dormitories from Guangzhou City of China to measure the concentrations of six NEOs and their three metabolites. Target analytes were frequently detected in paired urine (81%-98%) and indoor dust (75%-95%) samples, with median concentrations ranging from 0.02 [specific gravity (SG) adjusted: 0.02] to 2.08 (SG-adjusted: 2.38) ng/mL in urine and from 0.05 to 2.74 ng/g in indoor dust. 5-Hydroxy-imidacloprid was predominant in urine, while N-desmethyl acetamiprid was predominant in indoor dust samples, accounting for 56% and 37%, respectively. 1-Methyl-3-(tetrahydro-3-furylmethyl) urea, a dinotefuran degradate, was measured for the first time in indoor dust, with the median level of 1.02 ng/g. Significant gender-related differences (p < 0.05) in the urinary concentrations of most NEOs were found. We calculated the estimated daily intake (EDI) of target compounds from urine and indoor measurements. The EDIs of target analytes varied among all urine and indoor dust samples, with median values ranging from 0.51 (SG-adjusted: 0.56) to 51.6 (SG-adjusted: 52.8) ng/kg bw/day and from 0.04 to 2.10 pg/kg bw/day, respectively. Moreover, the median EDIsurine of most target analytes in females were significantly higher than (p < 0.05) those in males. The median EDIsdust of target compounds in dust from female dormitories were slightly higher than that in dust from male dormitories. These findings indicated that females were more exposed to NEO than males. Thus, the potential health risks of exposure to NEOs and their metabolites in female adults should be addressed in future studies. To our knowledge, this study is the first to report the profiles of NEOs and their metabolites in paired urine and indoor dust samples from young adults in China.
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Affiliation(s)
- Hua Zhang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Kui Shen
- Department of Orthopedics, First Affiliated Hospital, Jinan University, Guangzhou, 510632, PR China
| | - Ruan Wu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Zhiyong Li
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Xiao Wang
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China
| | - Desheng Wang
- School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR China
| | - Meixiao Zhan
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China
| | - Weiguo Xu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China.
| | - Yunfei Gao
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China; The Biomedical Translational Research Institute, Jinan University Faculty of Medical Science, Jinan University, Guangzhou, 510632, PR China.
| | - Ligong Lu
- Zhuhai Precision Medical Center, Zhuhai People's Hospital (Zhuhai Hospital Affiliated with Jinan University), Jinan University, Zhuhai, 519000, Guangdong, PR China.
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Fernandes CHM, Silva BF, Aquino JM. On the performance of distinct electrochemical and solar-based advanced oxidation processes to mineralize the insecticide imidacloprid. CHEMOSPHERE 2021; 275:130010. [PMID: 33676275 DOI: 10.1016/j.chemosphere.2021.130010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/09/2021] [Accepted: 02/16/2021] [Indexed: 06/12/2023]
Abstract
Water contamination by contaminants of emerging concern is one of the main challenges to be solved by our desired sustainable society. In the same time, different technologies for water treatment are becoming enough mature to be implemented. In this work, two different advanced oxidation processes (AOP) were investigated: i) electrochemical processes (electrochemical, photoassisted electrochemical, electro Fered-Fenton, and photo-electro Fered-Fenton - PEF-Fered) using a BDD and DSA® electrodes under UVA and UVC irradiation (9 W) and ii) solar-based AOP using four distinct oxidants (HOCl, H2O2, S2O82-, HSO5-) in the presence or absence of Fe2+ ions to oxidize and mineralize imidacloprid (IMD: 50 mg L-1) containing solutions. The PEF-Fered (1.0 mM Fe2+ and 50 mg L-1 h-1 H2O2) under UVA or UVC irradiation and HOCl/UVC (NaCl 17 mM) processes using a BDD and DSA® electrodes (10 mA cm -2), respectively, performed equally well to completely oxidize and mineralize (∼90%) IMD at the expense of only ∼0.3 kWh g-1. Low amounts and highly oxidized byproducts identified through liquid chromatography tandem mass spectrometry were observed for the HOCl/UVC process using a DSA® electrode. Concerning the solar-based AOP, all assessed oxidants (4 mM h-1) successfully oxidized IMD within 3 h of treatment, whereas only H2O2 and HOCl led to significant (∼60%) TOC abatement after 6 h treatment. The use of Fe2+ (0.5 or 1.0 mM) had no significant improvement in the oxidation and mineralization of IMD.
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Affiliation(s)
- Carlos H M Fernandes
- Universidade Federal de São Carlos, Departamento de Química, 13565-905, São Carlos, SP, Brazil
| | - Bianca F Silva
- Universidade Estadual Paulista, Instituto de Química de Araraquara, Departamento de Química Analítica, 14800-900, Araraquara, SP, Brazil
| | - José M Aquino
- Universidade Federal de São Carlos, Departamento de Química, 13565-905, São Carlos, SP, Brazil.
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Jansanthea P, Saovakon C, Chomkitichai W, Ketwaraporn J, Maneepong S, Chaiwong N, Jaisee K, Wansao C, Wanaek A, Pookmanee P. Thiamethoxam Insecticide Degradation with a Leaf-Like Cupric Oxide Monoclinic Structure Synthesized via the Microwave Method. RUSS J INORG CHEM+ 2021. [DOI: 10.1134/s0036023621050089] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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25
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Ding C, Zeng WA, Zhao AJ, Yang M, Xie Y, Deng Y, Gong D, Duan M, Cai H, Xie P, Zhou Y, Wen Z. Montmorillonite-supported nanoscale zero-valent iron for thiamethoxam removal: response surface optimization and degradation pathway. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:23113-23122. [PMID: 33439443 DOI: 10.1007/s11356-020-12309-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
As a highly efficient insecticide, thiamethoxam was widely used in the world. However, it was bioaccumulative and toxic to aquatic organisms that must be removed from water. In this work, nanoscale zero-valent iron particles loaded on montmorillonite (nZVI/Mt) were successfully synthesized for effective removal of thiamethoxam. The properties of nZVI/Mt for the removal of thiamethoxam were investigated, and the reaction conditions were optimized through response surface methodology. Furthermore, the degradation products were analyzed by liquid chromatography-mass spectrometry (LC/MS). The results demonstrated that the reaction activity of nZVI was enhanced because the agglomeration and oxidation of nZVI particles were effectively inhibited by using montmorillonite as a support. The significance of the effects of each factor on the removal of thiamethoxam was determined to be in the order of pH ˃ temperature ˃ reaction time ˃ nZVI/Mt dosage. The optimal conditions were as follows: a dosage of nZVI/Mt of 2 g/L, a reaction time of 2 h, a reaction temperature of 35 °C, and a solution pH of 3. The removal efficiency of thiamethoxam (C0 = 20 mg/L) was observed to be as high as 94.29% under the optimal conditions, which was close to the value of 94.47% that was predicted using the mathematical model, indicating that the model could accurately predict the removal efficiency of thiamethoxam. The degradation mechanism involved the -NO2 group on the thiamethoxam molecule was reduced and eliminated by nZVI/Mt.
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Affiliation(s)
- Chunxia Ding
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China.
| | - Wei-Ai Zeng
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China.
| | - A-Juan Zhao
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China.
| | - Mengyun Yang
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
| | - Yanlan Xie
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
| | - Yaocheng Deng
- College of Resource and Environment, Hunan Agricultural University, Changsha, 410082, China
| | - Daoxin Gong
- College of Resource and Environment, Hunan Agricultural University, Changsha, 410082, China
| | - Meizheng Duan
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Hailin Cai
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Pengfei Xie
- Changsha Tobacco Company of Hunan Province, Changsha, 410082, China
| | - Yong Zhou
- Hunan Institute of Biotechnology, Changsha, 410128, China
| | - Zhiyong Wen
- College of Chemical and Material Science, Hunan Agricultural University, Changsha, 410128, China
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26
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Lin C, Sponsler DB, Richardson RT, Watters HD, Glinski DA, Henderson WM, Minucci JM, Lee EH, Purucker ST, Johnson RM. Honey Bees and Neonicotinoid-Treated Corn Seed: Contamination, Exposure, and Effects. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2021; 40:1212-1221. [PMID: 33289922 PMCID: PMC8048971 DOI: 10.1002/etc.4957] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/09/2020] [Accepted: 12/01/2020] [Indexed: 05/05/2023]
Abstract
Most corn (Zea mays) seeds planted in the United States in recent years are coated with a seed treatment containing neonicotinoid insecticides. Abrasion of the seed coating generates insecticide-laden planter dust that disperses through the landscape during corn planting and has resulted in many "bee-kill" incidents in North America and Europe. We investigated the linkage between corn planting and honey bee colony success in a region dominated by corn agriculture. Over 3 yr we consistently observed an increased presence of corn seed treatment insecticides in bee-collected pollen and elevated worker bee mortality during corn planting. Residues of seed treatment neonicotinoids, clothianidin and thiamethoxam, detected in pollen positively correlated with cornfield area surrounding the apiaries. Elevated worker mortality was also observed in experimental colonies fed field-collected pollen containing known concentrations of corn seed treatment insecticides. We monitored colony growth throughout the subsequent year in 2015 and found that colonies exposed to higher insecticide concentrations exhibited slower population growth during the month of corn planting but demonstrated more rapid growth in the month following, though this difference may be related to forage availability. Exposure to seed treatment neonicotinoids during corn planting has clear short-term detrimental effects on honey bee colonies and may affect the viability of beekeeping operations that are dependent on maximizing colony size in the springtime. Environ Toxicol Chem 2021;40:1212-1221. © 2020 The Authors. Environmental Toxicology and Chemistry published by Wiley Periodicals LLC on behalf of SETAC.
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Affiliation(s)
- Chia‐Hua Lin
- Department of Entomology, Ohio Agricultural Research and Development CenterThe Ohio State UniversityWoosterOhioUSA
| | - Douglas B. Sponsler
- Department of Entomology, Ohio Agricultural Research and Development CenterThe Ohio State UniversityWoosterOhioUSA
| | - Rodney T. Richardson
- Department of Entomology, Ohio Agricultural Research and Development CenterThe Ohio State UniversityWoosterOhioUSA
| | - Harold D. Watters
- Department of ExtensionThe Ohio State UniversityBellefontaineOhioUSA
| | | | - W. Matthew Henderson
- Center for Environmental Measurement and ModelingUS Environmental Protection AgencyAthensGeorgia
| | - Jeffrey M. Minucci
- Center for Computational Toxicity and ExposureUS Environmental Protection Agency, Research Triangle ParkNorth Carolina
| | - E. Henry Lee
- Center for Public Health and Environmental AssessmentUS Environmental Protection AgencyCorvallisOregon
| | - S. Thomas Purucker
- Center for Computational Toxicity and ExposureUS Environmental Protection Agency, Research Triangle ParkNorth Carolina
| | - Reed M. Johnson
- Department of Entomology, Ohio Agricultural Research and Development CenterThe Ohio State UniversityWoosterOhioUSA
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27
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Bhat AP, Gogate PR. Degradation of nitrogen-containing hazardous compounds using advanced oxidation processes: A review on aliphatic and aromatic amines, dyes, and pesticides. JOURNAL OF HAZARDOUS MATERIALS 2021; 403:123657. [PMID: 33264866 DOI: 10.1016/j.jhazmat.2020.123657] [Citation(s) in RCA: 74] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 07/29/2020] [Accepted: 08/01/2020] [Indexed: 06/12/2023]
Abstract
Nitrogen-containing amino and azo compounds are widely used in textile, agricultural and chemical industries. Most of these compounds have been demonstrated to be resistant to conventional degradation processes. Advanced oxidation processes can be effective to mineralize nitrogen-containing compounds and improve the efficacy of overall treatment schemes. Due to a global concern for the occurrence of toxic and hazardous amino-compounds and their harmful degradation products in water, it is important to develop technologies that focus on all the aspects of their degradation. Our focus is to present a state-of-the-art review on the degradation of several amine- and azo-based compounds using advanced oxidation processes. The categories reviewed are aromatic amines, aliphatic amines, N-containing dyes and N-containing pesticides. Data has been compiled for degradation efficiencies of each process, reaction mechanisms focusing on specific attack of oxidants on N atoms, the effect of process parameters like pH, initial concentration, time of treatment, etc. and identification of intermediates. Several AOPs have been compared to provide a systematic overview of available literature that will drive essential aspects of future research on amine-based compounds. Ozone is observed to be highly reactive to most amines, dyes and pesticides, followed by Fenton processes. Degradation of amines is highly sensitive to pH and mechanisms differ at different pH values. Cavitation is a promising alternative pre-treatment method for cost reduction. Hybrid methods under optimized conditions are demonstrated to give synergistic effects and must be tailored for specific effluents in question. In conclusion, even though nitrogen-containing compounds are recalcitrant in nature, the use of advanced oxidation processes at carefully established optimum conditions can yield highly efficient degradation of the compounds.
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Affiliation(s)
- Akash P Bhat
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400019, India
| | - Parag R Gogate
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai, 400019, India.
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28
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Li C, Gu X, Wu Z, Qin T, Guo L, Wang T, Zhang L, Jiang G. Assessing the effects of elevated ozone on physiology, growth, yield and quality of soybean in the past 40 years: A meta-analysis. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 191:110234. [PMID: 33396164 DOI: 10.1016/j.ecoenv.2020.110234] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 01/02/2020] [Accepted: 01/19/2020] [Indexed: 05/20/2023]
Abstract
Soybean (Glycine max) production is seriously threatened by ground-level ozone (O3) pollution. The goal of our study is to summarize the impacts of O3 on physiology, growth, yield, and quality of soybean, as well as root parameters. We performed meta-analysis on the collated 48 peer-reviewed papers published between 1980 and 2019 to quantitatively summarize the response of soybean to elevated O3 concentrations ([O3]). Relative to charcoal-filtered air (CF), elevated [O3] significantly accelerated chlorophyll degradation, enhanced foliar injury, and inhibited growth of soybean, evidenced by great reductions in leaf area (-20.8%), biomass of leaves (-13.8%), shoot (-22.8%), and root (-16.9%). Shoot of soybean was more sensitive to O3 than root in case of biomass. Chronic ozone exposure of about 75.5 ppb posed pronounced decrease in seed yield of soybean (-28.3%). In addition, root environment in pot contributes to higher reduction in shoot biomass and yield of soybean. Negative linear relationships were observed between yield loss and intensity of O3 treatment, AOT40. The larger loss in seed yield was significantly associated with higher reduction in shoot biomass and other yield component. This meta-analysis demonstrates the effects of elevated O3 on soybean were pronounced, suggesting that O3 pollution is still a soaring threat to the productivity of soybean in regions with high ozone levels.
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Affiliation(s)
- Caihong Li
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Xian Gu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China; College of Pharmacy, Hebei University of Chinese Medicine, Shijiazhuang, China
| | - Zhiyuan Wu
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Tianyu Qin
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Liyue Guo
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China
| | - Tianzuo Wang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China
| | - Lu Zhang
- College of Horticulture and Landscape Architecture, Northeast Agricultural University, Harbin, China.
| | - Gaoming Jiang
- State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, The Chinese Academy of Sciences, Beijing, China; College of Resources and Environment, University of Chinese Academy of Sciences, Beijing, China.
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29
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Voigt M, Jaeger M. Structure and QSAR analysis of photoinduced transformation products of neonicotinoids from EU watchlist for ecotoxicological assessment. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 751:141634. [PMID: 32882550 DOI: 10.1016/j.scitotenv.2020.141634] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 08/06/2020] [Accepted: 08/09/2020] [Indexed: 06/11/2023]
Abstract
Current research is increasingly focusing on the ecotoxicity of anthropogenic micro-pollutants and their degradation and transformation products resulting from biological and chemical treatment processes. These products enter the aquatic environment through various routes and may endanger aquatic organisms and plants. In this study, five neonicotinoids from the EU watchlist and their degradation products induced by UVC irradiation were examined. All identified photoinduced degradation or transformation products were subsequently submitted to Quantitative Structure Activity (QSAR) analysis. Among the investigated structures, 15 substances already identified in previous studies and eleven new transformation products were analyzed. By using QSAR analysis, it became possible to predict ecotoxicity of individual substances with mere computational effort. Starting from the chemical structure, lower toxicity against green algae and invertebrates was predicted for the transformation products in general. For other aquatic target organisms, such as branchiopoda, actinopterygii and fathead minnow, the residual hazardous effect as compared to the initial compound depends on the presence of specific structural elements. For the neonicotinoids investigated, the cleavage or elimination of the nitrile or nitro group through the degradation process, was predicted to increase toxicity.
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Affiliation(s)
- Melanie Voigt
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798 Krefeld, Germany
| | - Martin Jaeger
- Niederrhein University of Applied Sciences, Department of Chemistry and ILOC, Frankenring 20, D-47798 Krefeld, Germany.
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30
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Patil PB, Raut-Jadhav S, Pandit AB. Effect of intensifying additives on the degradation of thiamethoxam using ultrasound cavitation. ULTRASONICS SONOCHEMISTRY 2021; 70:105310. [PMID: 32862034 PMCID: PMC7786630 DOI: 10.1016/j.ultsonch.2020.105310] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 08/12/2020] [Accepted: 08/12/2020] [Indexed: 06/11/2023]
Abstract
The present study has investigated the degradation of thiamethoxam using ultrasound cavitation (US) operated at a frequency of 20 kHz and its combination with intensifying additives viz. hydrogen peroxide, Fenton and photo-Fenton reagent. At the outset, the performance of US (20 kHz) has been maximised by the optimization of process parameters. Highest rate of degradation of thiamethoxam was observed at the optimum ultrasonic power density of 0.22 W/mL, thiamethoxam concentration of 10 ppm and the pH of 2. The established optimum values of operating parameters were used further in case of combined treatment approaches. The effect of concentration of H2O2 on the rate of degradation of thiamethoxam in the case of US + H2O2 process has confirmed the existence of optimum concentration of H2O2 with the ratio of thiamethoxam: H2O2 as 1:10. US + Fenton process indicated the optimal molar ratio of FeSO4·7H2O:H2O2 as 1:15. The combined processes of US + H2O2, US + Fenton and US + photo-Fenton have resulted in the extent of degradation of 20.47 ± 0.61%, 34.41 ± 1.03% and 85.17 ± 2.56% respectively after 45 min. of operation. These combined processes lead to the synergistic index of 2.04 ± 0.06, 2.26 ± 0.07 and 2.42 ± 0.07 in case of US + H2O2, US + Fenton and US + photo-Fenton processes respectively over only US/stirring treatment with the additive. Additionally, the extent of mineralization and the energy efficiency of individual and combined processes have been compared. US + photo-Fenton process has been found to be the best strategy for effective degradation of thiamethoxam with a significant intensification benefit. The by-products formed during the ultrasonic degradation of thiamethoxam have been identified by using LC-MS/MS analysis.
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Affiliation(s)
- P B Patil
- Department of Chemical Engineering, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Dhankawadi, Pune 411043, India
| | - S Raut-Jadhav
- Department of Chemical Engineering, Bharati Vidyapeeth (Deemed to be University) College of Engineering, Dhankawadi, Pune 411043, India.
| | - A B Pandit
- Department of Chemical Engineering, Institute of Chemical Technology, Matunga, Mumbai 400019, India
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31
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Liu Z, Tian Y, Dong X, Zhou X, Liu X, Huang L. One-step hydrothermal method for preparation of Ni/carbon thin film electrodes for efficient electroreduction of imidacloprid. NEW J CHEM 2021. [DOI: 10.1039/d0nj05509c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Ni/CTF was used as the cathode for electroreduction of imidacloprid, achieving a 92.1% removal efficiency for the electroreduction of imidacloprid.
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Affiliation(s)
- Zongyu Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering
- Ministry of Education (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
| | - Ying Tian
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Xuewei Dong
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Xiaohui Zhou
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Xiao Liu
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Liping Huang
- Key Laboratory of Industrial Ecology and Environmental Engineering
- Ministry of Education (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
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32
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Literature Review: Global Neonicotinoid Insecticide Occurrence in Aquatic Environments. WATER 2020. [DOI: 10.3390/w12123388] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Neonicotinoids have been the most commonly used insecticides since the early 1990s. Despite their efficacy in improving crop protection and management, these agrochemicals have gained recent attention for their negative impacts on non-target species such as honeybees and aquatic invertebrates. In recent years, neonicotinoids have been detected in rivers and streams across the world. Determining and predicting the exposure potential of neonicotinoids in surface water requires a thorough understanding of their fate and transport mechanisms. Therefore, our objective was to provide a comprehensive review of neonicotinoids with a focus on their fate and transport mechanisms to and within surface waters and their occurrence in waterways throughout the world. A better understanding of fate and transport mechanisms will enable researchers to accurately predict occurrence and persistence of insecticides entering surface waters and potential exposure to non-target organisms in agricultural intensive regions. This review has direct implications on how neonicotinoids are monitored and degraded in aquatic ecosystems. Further, an improved understanding of the fate and transport of neonicotinoids aide natural resource practitioners in the development and implementation of effective best management practices to reduce the potential impact and exposure of neonicotinoids in waterways and aquatic ecosystems.
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33
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Wan Y, Han Q, Wang Y, He Z. Five degradates of imidacloprid in source water, treated water, and tap water in Wuhan, central China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 741:140227. [PMID: 32574922 DOI: 10.1016/j.scitotenv.2020.140227] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Revised: 06/09/2020] [Accepted: 06/12/2020] [Indexed: 06/11/2023]
Abstract
Imidacloprid (IMI) is one of the most applied neonicotinoid insecticides worldwide. The occurrence of its degradates such as desnitro-imidacloprid (DN-IMI), imidacloprid-urea (IMI-urea), and desnitro-imidacloprid-olefin (DN-IMI-olefin) in environment water and their fate during drinking water treatment were seldom documented. In this study, IMI and its degradates were determined in source water (the Yangtze River and its largest tributary, the Hanshui River), treated water, and tap water (n = 20, 20, and 169, respectively) in different seasons of 2019 in Wuhan, central China. Their occurrence, removal efficiency, and seasonal variations were evaluated. Advanced water treatment with ozone combined with activated carbon might remove target analytes efficiently but conventional water treatment cannot. IMI and its degradates were 100% detectable in the conventionally treated water samples in July. IMI and DN-IMI decreased while IMI-urea, DN-IMI-olefin, imidacloprid-olefin (IMI-olefin), and 5-hydroxy-imidacloprid (5-OH-IMI) increased during conventional drinking water treatment. IMI and its degradates were found in the tap water samples treated conventionally (range: 1.17-32.0 ng/L for IMI; 0.57-7.00 ng/L for DN-IMI; 0.58-4.50 ng/L for IMI-urea; 0.04-0.65 ng/L for DN-IMI-olefin; < method detection limit [MDL]-0.80 ng/L for IMI-olefin; < MDL-0.35 ng/L for 5-OH-IMI). The concentrations of DN-IMI and IMI-urea observed in this study were higher than those observed in North America. Sodium sulfite did not increase the levels of DN-IMI and IMI-urea in tap water samples in the present study. This is the first study to demonstrate the occurrence of DN-IMI and IMI-urea in water in China and the occurrence of DN-IMI-olefin, IMI-olefin, and 5-OH-IMI in water.
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Affiliation(s)
- Yanjian Wan
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China.
| | - Qing Han
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China
| | - Yao Wang
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China
| | - Zhenyu He
- Institute of Environmental Health, Wuhan Centers for Disease Control & Prevention, Wuhan, Hubei 430024, PR China.
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34
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Bujak IT, Kralj MB, Kosyakov DS, Ul'yanovskii NV, Lebedev AT, Trebše P. Photolytic and photocatalytic degradation of doxazosin in aqueous solution. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 740:140131. [PMID: 32563879 DOI: 10.1016/j.scitotenv.2020.140131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/30/2020] [Accepted: 06/09/2020] [Indexed: 05/09/2023]
Abstract
Doxazosin (DOX), a selective alpha blocker, is widely used in medical therapy as an effective antihypertensive agent. It is a frequently prescribed drug and for this reason, environmental and ecotoxicological research is of great importance in terms of exposure and risk for both aquatic species and humans. In this study we focused on photolytic and TiO2 photocatalytic degradation processes of doxazosin under different simulated conditions, with the emphasis on identification of degradation products. Photolytic (without TiO2) experiments were performed in the presence and absence of oxygen, while photocatalytic degradation of doxazosin aqueous solution has been carried out under constant oxygen flow. DOX degradation was more efficient in the TiO2/UVA photocatalytic experiment than during photolytic processes (UVA and UVC, UVC-N2). LC-HRMS analyses with electrospray ionization allowed observing the formation of several major degradation products depending on the reaction conditions (presence or absence of oxygen, photocatalysis). The transformation products were identified based on exact mass measurements, isotopic distribution, and fragmentation pattern. Among them, dominated C17H21N5O3 and C17H23N5O4 (cleavage of the dioxane cycle), and C23H25N5O7 (hydroxylation). The detailed degradation pathway has been proposed. Toxicity testing with V. fischeri luminescent bacteria revealed higher toxicity of samples in photolytic rather than photocatalytic experiments which might be attributed to the formation of different products.
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Affiliation(s)
| | - Mojca Bavcon Kralj
- University of Ljubljana, Faculty of Health Sciences, Ljubljana, Slovenia
| | - Dmitry S Kosyakov
- Northern (Arctic) Federal University, Core Facility Center "Arktika", Arkhangelsk, Russia
| | - Nikolay V Ul'yanovskii
- Northern (Arctic) Federal University, Core Facility Center "Arktika", Arkhangelsk, Russia
| | - Albert T Lebedev
- Northern (Arctic) Federal University, Core Facility Center "Arktika", Arkhangelsk, Russia; Moscow State University, Department of Chemistry, Moscow, Russia.
| | - Polonca Trebše
- University of Ljubljana, Faculty of Health Sciences, Ljubljana, Slovenia.
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35
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Mohanta D, Ahmaruzzaman M. A novel Au-SnO 2-rGO ternary nanoheterojunction catalyst for UV-LED induced photocatalytic degradation of clothianidin: Identification of reactive intermediates, degradation pathway and in-depth mechanistic insight. JOURNAL OF HAZARDOUS MATERIALS 2020; 397:122685. [PMID: 32402954 DOI: 10.1016/j.jhazmat.2020.122685] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 03/16/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Herein, we have developed Au-SnO2-rGO ternary nanoheterojunction catalyst for photocatalytic degradation of clothianidin under UV-LED irradiation. Au nanoparticles (Au NPs) were decorated with quantum sized SnO2 nanoparticles (SnO2 NPs) and embedded in the reduced graphene oxide (rGO) matrix. The synthesized photocatalyst was characterized using common instrumentation techniques to evaluate the morphological, structural and surface chemical properties of the catalyst. The photocatalytic property of the as-synthesized nanocomposite was investigated by studying the degradation of clothianidin under UV-LED irradiation. Approximately 97% of the degradation was achieved in 120 min with pseudo first-order reaction rate of 0.0309 min-1. The effect of various parameters like contact time, catalyst dose, initial concentration, pH, irradiation source and interfering ions on the degradation performance has also been investigated. Identification of various intermediates in the degradation process was done with high performance liquid chromatography- mass spectral (LC/HRMS) technique. The reactive intermediates responsible for the degradation have also been identified with electron spin resonance (ESR) technique and complete mechanism of the degradation process has been proposed with the help of photo luminescence (PL) quenching studies.
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Affiliation(s)
- Dipyaman Mohanta
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India
| | - Md Ahmaruzzaman
- Department of Chemistry, National Institute of Technology, Silchar, Assam, 788010, India.
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36
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Li S, Chen H, Wang X, Dong X, Huang Y, Guo D. Catalytic degradation of clothianidin with graphene/TiO 2 using a dielectric barrier discharge (DBD) plasma system. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:29599-29611. [PMID: 32445149 DOI: 10.1007/s11356-020-09303-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 05/13/2020] [Indexed: 06/11/2023]
Abstract
Clothianidin served as the model pollutant to investigate the performance and mechanism of pollutant removal by dielectric barrier discharge plasma (DBD) combined with the titanium dioxide-reduced graphene oxide (rGO-TiO2) composite catalyst. In this study, different ratios of titanium dioxide-graphene catalysts were loaded onto honeycomb ceramic plates via the sol-gel method, and the modified catalytic ceramic plates were characterized by XRD, SEM, FTIR, DRS, and energy dispersive X-ray. The results suggested that the rGO-TiO2 was well loaded on the surface of the honeycomb ceramic plates. According to the results of the characterization experiments and the degradation of the clothianidin solution with different proportions of the catalyst, 8 wt% rGO-TiO2 was selected as the optimum ratio for degradation. Clothianidin degradation efficiency was significantly influenced by input power, clothianidin concentration, pH value, liquid conductivity, free radical quencher. Finally, six degradation products of clothianidin were identified by HPLC-MS, and the possible transformation pathways of clothianidin degradation were identified. Graphical abstract.
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Affiliation(s)
- Shanping Li
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China.
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, Qingdao, 266237, China.
| | - Hao Chen
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China
| | - Xiaoping Wang
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China
| | - Xiaochun Dong
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China
| | - Yixuan Huang
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China
| | - Dan Guo
- School of Environmental Science and Engineering, Shandong University, 72 Binhailu, Qingdao, 266237, China
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37
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Tang M, Ao Y, Wang P, Wang C. All-solid-state Z-scheme WO 3 nanorod/ZnIn 2S 4 composite photocatalysts for the effective degradation of nitenpyram under visible light irradiation. JOURNAL OF HAZARDOUS MATERIALS 2020; 387:121713. [PMID: 31767501 DOI: 10.1016/j.jhazmat.2019.121713] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/13/2019] [Accepted: 11/17/2019] [Indexed: 06/10/2023]
Abstract
A Z-scheme WO3/ZnIn2S4 photocatalyst was synthesized via a simple solvothermal method. Compared with pure WO3 and ZnIn2S4, photocatalytic experiments showed that these Z-scheme photocatalysts exhibited enhanced activity for the degradation of nitenpyram (NTP). The apparent rate constant (k) of NTP degradation on 50WZ (WO3/ 50 wt% Znln2S4) was 0.042 min-1 (∼3.8 times higher than WO3 and ∼2.5 times higher than ZnIn2S4). Photoluminescence (PL), photocurrent (PC), and electrochemical impedance spectroscopy (EIS) showed that the separation and transfer efficiency of photogenerated carriers in 50WZ was markedly enhanced, which was favorable for improving its photocatalytic activity. Active species capture experiments and electron spin resonance (ESR) measurements showed that superoxide radicals and holes were the main active species for NTP degradation, and they confirmed the formation of the Z-scheme structure. Furthermore, a possible NTP degradation pathway was deduced based on the results of high-performance liquid chromatography mass spectrometry (HPLC-MS).
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Affiliation(s)
- Mengling Tang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
| | - Yanhui Ao
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China.
| | - Peifang Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
| | - Chao Wang
- Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of Ministry of Education, College of Environment, Hohai University, No.1, Xikang Road, Nanjing, 210098, China
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38
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Fast oxidation of the neonicotinoid pesticides listed in the EU Decision 2018/840 from aqueous solutions. Sep Purif Technol 2020. [DOI: 10.1016/j.seppur.2019.116168] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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39
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Liu F, Ai J, Zhang H, Huang YH. Application of heterogeneous photo-Fenton process for the mineralization of imidacloprid containing wastewater. ENVIRONMENTAL TECHNOLOGY 2020; 41:539-546. [PMID: 30051762 DOI: 10.1080/09593330.2018.1505961] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 07/22/2018] [Indexed: 06/08/2023]
Abstract
The imidacloprid was mineralized by heterogeneous photo-Fenton process in a three-phase fluidized bed reactor using waste iron oxide as catalyst. The effects of catalyst loading, dosage of H2O2 and pH were investigated to determine the optimal experiments conditions. The results revealed that TOC removal efficiency increases with an increase in H2O2 dosage of up to 105.0 mM, an increase in catalyst dosage from 1.0 to 5.0 g L-1, and a decrease in pH from 5.0 to 3.5. Under the optimal conditions, 97.7% TOC removal was achieved in 6 h under 254-nm UV irradiation. Moreover, recycling experiments indicated that the waste iron oxide had a good stability and the TOC removal of pesticide yielded more than 80% under the fourth recycles.
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Affiliation(s)
- Fuzhen Liu
- Department of Environmental Science and Engineering, Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan University, Wuhan, People's Republic of China
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Jia Ai
- Department of Environmental Science and Engineering, Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan University, Wuhan, People's Republic of China
| | - Hui Zhang
- Department of Environmental Science and Engineering, Hubei Environmental Remediation Material Engineering Technology Research Center, Wuhan University, Wuhan, People's Republic of China
| | - Yao-Hui Huang
- Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan
- Sustainable Environment Research Center, National Cheng Kung University, Tainan, Taiwan
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40
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Liu Z, Tian Y, Zhou X, Liu X, Huang L. Comparison of two different nickel oxide films for electrochemical reduction of imidacloprid. RSC Adv 2020; 10:3040-3047. [PMID: 35497734 PMCID: PMC9049129 DOI: 10.1039/c9ra09505e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Accepted: 01/05/2020] [Indexed: 11/21/2022] Open
Abstract
A nickel oxide (NiO) thin film was successfully prepared on Ni foil via a sol–gel method and a reduced state nickel oxide (r-NiO) thin film was obtained by etching NiO with hydrazine hydrate solution.
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Affiliation(s)
- Zongyu Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering
- Ministry of Education (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
| | - Ying Tian
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Xiaohui Zhou
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Xiao Liu
- Key Laboratory of Environmental Science and Technology
- Education Department of Liaoning Province
- College of Environmental and Chemical Engineering
- Dalian Jiaotong University
- Dalian 116028
| | - Liping Huang
- Key Laboratory of Industrial Ecology and Environmental Engineering
- Ministry of Education (MOE)
- School of Environmental Science and Technology
- Dalian University of Technology
- Dalian 116024
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41
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Kralj MB, Dilcan EG, Salihoğlu G, Mazur DM, Lebedev AT, Trebše P. Photocatalytic Degradation of Chlothianidin: Effect of Humic Acids, Nitrates, and Oxygen. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819140077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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42
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Wu P, Zhang Q, Wang Y, Zhang Y, Chen Z, Cao B, Wu Y, Zhu F, Li N. RETRACTED: Clothianidin wastewater treatment and the accumulation of high-value biochemical by Rhodopseudomonas spheroides. BIORESOURCE TECHNOLOGY 2019; 294:122073. [PMID: 31521982 DOI: 10.1016/j.biortech.2019.122073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/21/2019] [Accepted: 08/24/2019] [Indexed: 06/10/2023]
Abstract
This article has been retracted: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/our-business/policies/article-withdrawal). This article has been retracted at the request of the Authors and the Editor-in-Chief. The paper is retracted because of a high level of duplication of "Rhodopseudomonas palustris wastewater treatment: cyhalofop-butyl removal, biochemicals production and mathematical model establishment. Bioresource. Tech. 2019, 282: 390-397 As such this article represents a severe abuse of the scientific publishing system. The scientific community takes a very strong view on this matter and apologies are offered to readers of the journal that this was not detected during the submission process. The first author, Pan Wu, takes full responsibility for these actions, a stance supported by Dalian Minzu University and Northeast Agricultural University, Harbin, where the research took place.
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Affiliation(s)
- Pan Wu
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China
| | - Qian Zhang
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China
| | - Yanling Wang
- Department of Anesthesiology, the Third Affiliated Hospital of SunYat-Sen University, Guangzhou510630, China
| | - Ying Zhang
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China.
| | - Zhaobo Chen
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China
| | - Bo Cao
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China
| | - Yuan Wu
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China
| | - Feifei Zhu
- Forest and Wastewater Ecology, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang110164, China
| | - Ning Li
- School of Environment and Resources, Dalian Minzu University, Dalian116600, China; School of Resources and Environment, Northeast Agricultural University, Harbin150030, China
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43
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Kanan S, Moyet MA, Arthur RB, Patterson HH. Recent advances on TiO2-based photocatalysts toward the degradation of pesticides and major organic pollutants from water bodies. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING 2019. [DOI: 10.1080/01614940.2019.1613323] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Sofian Kanan
- Department of Biology, Chemistry & Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates
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44
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Covei M, Bogatu C, Perniu D, Tismanar I, Duta A. Comparative study on the photodegradation efficiency of organic pollutants using n-p multi-junction thin films. Catal Today 2019. [DOI: 10.1016/j.cattod.2019.01.055] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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45
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Bogatu C, Covei M, Perniu D, Tismanar I, Duta A. Stability of the Cu2ZnSnS4/TiO2 photocatalytic thin films active under visible light irradiation. Catal Today 2019. [DOI: 10.1016/j.cattod.2018.11.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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46
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Photocatalytic Degradation of Azithromycin by Nanostructured TiO₂ Film: Kinetics, Degradation Products, and Toxicity. MATERIALS 2019; 12:ma12060873. [PMID: 30875916 PMCID: PMC6471002 DOI: 10.3390/ma12060873] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 03/08/2019] [Accepted: 03/12/2019] [Indexed: 01/19/2023]
Abstract
In this paper, nanostructured TiO2 film was prepared by the by sol-gel process and dip-coating technique with titanium tetraisopropoxide as a precursor. After heat treatment at 550 °C, the deposited film was characterized by means of micro-Raman spectroscopy and atomic force microscopy (AFM). It was found that the TiO2 film consisted of only the TiO2 anatase phase and showed a granular microstructure. Photocatalytic degradation of azithromycin by using sol-gel nanostructured TiO2 film was studied to define the most effective degradation process for potential use in wastewater treatment. Different factors were evaluated during photocatalysis, such as pH (3, 7, and 10), water matrix (ultrapure water and synthetic municipal waste water effluent), influence of another pharmaceutically active compound (sulfamethoxazole, one of the most often detected pharmaceutic compounds in waste waters), and radiation sources (low pressure ultraviolet (UV) mercury lamps with a UV-A and UV-C range; a light-emitting diode (LED) lamp with a radiation peak at 365 nm). The most effective degradation process was achieved with the UV-C irradiation source in matrices at pH 10. The water matrix had little effect on the photocatalytic degradation rates of azithromycin. The presence of sulfamethoxazole in the water matrix decreased the degradation rate of azithromycin, however, only in matrices with a pH level adjusted to 10. During the experiments, five azithromycin degradation products were identified and none of them showed toxic properties, suggesting effective removal of azithromycin. LED 365 nm as the irradiation source was not as effective as the UV-C lamp. Nevertheless, considering the cost, energy efficiency, and environmental aspects of the irradiation source, the LED lamp could be a “real-life” alternative.
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47
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Bioremediation and metabolism of clothianidin by mixed bacterial consortia enriched from contaminated soils in Chinese greenhouse. Process Biochem 2019. [DOI: 10.1016/j.procbio.2018.12.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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48
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Covei M, Perniu D, Bogatu C, Duta A. CZTS-TiO2 thin film heterostructures for advanced photocatalytic wastewater treatment. Catal Today 2019. [DOI: 10.1016/j.cattod.2017.12.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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49
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Gayen P, Chen C, Abiade JT, Chaplin BP. Electrochemical Oxidation of Atrazine and Clothianidin on Bi-doped SnO 2-Ti nO 2 n-1 Electrocatalytic Reactive Electrochemical Membranes. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2018; 52:12675-12684. [PMID: 30239187 DOI: 10.1021/acs.est.8b04103] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This research focused on improving mineralization rates during the advanced electrochemical oxidation treatment of agricultural water contaminants. For the first time, bismuth-doped tin oxide (BDTO) catalysts were deposited on Magnéli phase (Ti nO2 n-1, n = 4-6) reactive electrochemical membranes (REMs). Terephthalic acid (TA) was used as a OH• probe, whereas atrazine (ATZ) and clothianidin (CDN) were chosen as model agricultural water contaminants. The BDTO-deposited REMs (REM/BDTO) showed higher compound removal than the REM, due to enhanced OH• production. At 3.5 V/SHE, complete mineralization of TA, ATZ, and CDN was achieved for the REM/BDTO upon a single pass in the reactor (residence time ∼3.6 s). Energy consumption for REM/BDTO was as much as 31-fold lower than the REM, with minimal values per log removal of <0.53 kWh m-3 for TA (3.5 V/SHE), <0.42 kWh m-3 for ATZ (3.0 V/SHE), and 0.83 kWh m-3 for CDN (3.0 V/SHE). Density functional theory simulations provided potential dependent activation energy profiles for ATZ, CDN, and various oxidation products. Efficient mass transfer and a reaction mechanism involving direct electron transfer and reaction with OH• were responsible for the rapid and complete mineralization of ATZ and CDN at very short residence times.
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Affiliation(s)
- Pralay Gayen
- Department of Chemical Engineering , University of Illinois at Chicago , 810 S. Clinton St. , Chicago , Illinois 60607 , United States
| | - Chen Chen
- Department of Mechanical and Industrial Engineering , University of Illinois at Chicago , 842 W. Taylor St. , Chicago , Illinois 60607 , United States
| | - Jeremiah T Abiade
- Department of Mechanical and Industrial Engineering , University of Illinois at Chicago , 842 W. Taylor St. , Chicago , Illinois 60607 , United States
| | - Brian P Chaplin
- Department of Chemical Engineering , University of Illinois at Chicago , 810 S. Clinton St. , Chicago , Illinois 60607 , United States
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50
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Li Y, Li Y, Liu Y, Ward TJ. Photodegradation of clothianidin and thiamethoxam in agricultural soils. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:31318-31325. [PMID: 30194578 DOI: 10.1007/s11356-018-3121-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Accepted: 08/31/2018] [Indexed: 06/08/2023]
Abstract
Presented in this paper is a study on the photodegradation of two widely used neonicotinoid insecticides clothianidin and thiamethoxam in three soils and in solid phase. The effects of light with differing wavelengths were examined using the natural sunlight and single ultraviolet A (UVA) and ultraviolet B (UVB) light sources. The results indicated that UVB played a key role in the photodegradation of clothianidin and thiamethoxam while the effects of visible and UVA lights were negligible. The degradations of clothianidin and thiamethoxam under all the light sources followed the first-order kinetics, and the half-lives of clothianidin and thiamethoxam in the three soils under the sunlight ranged from 97 to 112 h and 88 to 103 h, respectively. When clothianidin and thiamethoxam were directly exposed to the sunlight without soil, the degradation rates were remarkably higher with half-lives being 13 and 10 h, respectively. Therefore, the insecticides fallen on the surface of soils would be degraded under sunlight much faster than those that enter the soils. The examination of the degradation products revealed four compounds from the photodegradation of clothianidin and three from thiamethoxam, and clothianidin was one of the photodegradation products of thiamethoxam.
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Affiliation(s)
- Yang Li
- Department of Civil & Environmental Engineering, Jackson State University, 1400 J. R. Lynch St, Jackson, MS, 39217, USA
| | - Yadong Li
- Department of Civil & Environmental Engineering, Jackson State University, 1400 J. R. Lynch St, Jackson, MS, 39217, USA.
| | - Yiming Liu
- Department of Chemistry & Biochemistry, Jackson State University, 1400 J. R. Lynch St, Jackson, MS, 39217, USA
| | - Timothy J Ward
- Department of Chemistry & Biochemistry, Millsaps College, 1701 N State Street, Jackson, MS, 39202, USA
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