Improved photocatalytic decomposition of carbaryl pesticide in wastewater using ZnO nanorods

Journal of Environmental Science and Health Part B, Год журнала: 2024, Номер unknown, С. 1 - 9

Опубликована: Ноя. 11, 2024

This study explores the enhanced photocatalytic performance of ZnO nanorods (ZnO-R) for degrading carbaryl pesticide (CB) in wastewater. For comparison, commercial (ZnO-C) was used to evaluate differences decomposition CB between ZnO-R and ZnO-C. The results regarding material properties demonstrated that enhances removal due its unique rod shape, which extends light absorption improves electron-hole separation. rates from aqueous solution using ZnO-C were 98.2% 87.3%, respectively. Besides, presence other pesticides had a more negative impact on than inorganic contaminants. degradation wastewater 99.8%, 68.2%, 21.7% under UV, solar, visible light, In addition, mechanism UV proposed based n-type photocatalysis process. work provides method selecting suitable type photocatalyst control residue pollutants are commonly found agricultural activities.

Язык: Английский

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Application of eco-friendly material as an inexpensive adsorbent for methyl violet dye removal: experimental, response surface methodology and statistical physics

Journal of Dispersion Science and Technology, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Дек. 4, 2024

Methyl Violet (MV) removal from aqueous solutions is studied using an Algerian Bentonite sample as a low-cost adsorbent. SEM-EDX, X-ray diffraction, and chemical composition characterized the adsorbent material. The modeling optimization study of MV adsorption artificial neural network (ANN) response surface methodology (RSM) were also examined. effects pH, contact time, dye concentration, temperature are all considered. kinetics results adjusted to best fit pseudo-second-order model. Langmuir-Freundlich Langmuir models well describe experimental data with capacity 472 mg g−1. calculated thermodynamic demonstrates that spontaneous endothermic. Desorption studies methanol indicate could successfully retain MV, even after five cycles. statistical physics theory indicates non-parallel orientation molecule's adsorption. energies varied 13.99 17.60 kJ mol−1, revealing physical systems. From these results, it can be considered raw bentonite tested herein effective in removing may used alternative high-cost commercial adsorbents.

Язык: Английский

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Application of Biomass Functional Materials in the Environment

Water, Год журнала: 2024, Номер 16(24), С. 3593 - 3593

Опубликована: Дек. 13, 2024

With the intensification of global environmental issues, traditional materials science is facing unprecedented challenges [...]

Язык: Английский

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Effective removal of atrazine pesticide residue from wastewater using transition metal-doped zinc oxide photocatalyst

Journal of Environmental Science and Health Part B, Год журнала: 2024, Номер unknown, С. 1 - 9

Опубликована: Дек. 15, 2024

Frequent use of pesticides results in the release large quantities their residues environment, raising various concerns for humans and ecosystem. This work introduces a simple cost-effective method removal atrazine pesticide residue (APR) from agricultural wastewater using Cu doped-ZnO photocatalyst (Cu-ZnO). The modification ZnO with significantly improved its optical photoelectrochemical properties, band gap narrowing 3.3 to 2.64 eV. photodegradation APR was 93.6 91.7% aqueous solution wastewater, respectively. After being reused four times, Cu-ZnO did not display notable drop degradation performance, rates 93.6, 91.2, 86.8, 83.1% during first, second, third, fourth recycles, Also, after six cycles <2%, suggesting excellent stability modified without any issues related secondary pollution. Under natural sunlight, 83.9% removed, confirming benefit reducing treatment costs by utilizing renewable energy. In addition, mechanism proposed based on outcomes radical quenching TOC tests.

Язык: Английский

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Self-assembly of ZnO-Biochar/Kaolinite/Chitosan/GO with 1D/2D/3D heterojunctions for enhanced removal of estrogens and triclosan in water

BMC Chemistry, Год журнала: 2024, Номер 18(1)

Опубликована: Дек. 18, 2024

This Study focuses on the preparation of sustainable and efficient Chitosan catalyst for removal three organic pollutants, 17β-Estradiol (E2), 17α-ethynyl estradiol (EE2) triclosan (TCS) from water. The prepared nanocomposites were characterized by different techniques which confirmed presence key components Chitosan, Carica Papaya seed Kaolinite. optical characterization proved nanocomposite is photoactive with a band gap 1.81 eV 1.77 Chitosan/kaolinite biochar (CS/KBC) biochar/GO (CS/KBC/GO) respectively, confirming ability to be active in visible light region spectrum. degradation experiment using CS/KBC/GO was observed better 100% 5 mg/L E2 EE2 over 60 min 97.8% 120 10 TCS at optimum conditions (pH 3 E2, pH 7). It that superoxide radical played major role contaminants. Furthermore, four cycles without any decrease performance, rules out question deactivation proving sustainability catalyst. toxicity test shows water safe as it does not harm cerio daphnia silvestrii organism.; efficiently removed micropollutants real-life waste samples performance very good slight wastewater due complex matrix sample competes site.

Язык: Английский

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Degradation of nonpoint source pollutants derived from plastic waste using WO₃/g-C₃N₄ heterojunction photocatalyst

Process Safety and Environmental Protection, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Язык: Английский

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New Insights into Materials for Pesticide and Other Agricultural Pollutant Remediation

Materials, Год журнала: 2024, Номер 17(14), С. 3478 - 3478

Опубликована: Июль 13, 2024

The increase in the world population and intensification of agricultural practices have resulted release several contaminants into environment, especially pesticides heavy metals. This article reviews recent advances using adsorbent catalytic materials for environmental decontamination. Different materials, including clays, carbonaceous, metallic, polymeric, hybrid are evaluated their effectiveness pollutant removal. Adsorption is an effective technique due to its low cost, operational simplicity, possibility regeneration. Catalytic processes, those metallic nanoparticles, offer high efficiency degrading complex pesticides. Combining these technologies can enhance remediation promoting a more sustainable practical approach mitigate impacts other pollutants on environment. Therefore, this review aims present types used as adsorbents catalysts decontaminating ecosystems affected by pollutants. It discusses works literature future perspectives remediation. Additionally, it explores possibilities green chemistry principles producing agro-industrial waste precursors new remove from

Язык: Английский

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Determination of Multiple Pesticide Residues and Dietary Intake Risk Assessment of 35 Pesticides in Beet from Five Provinces of Northern China

Sugar Tech, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 18, 2024

Язык: Английский

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Research on Remediation of Cadmium-Contaminated Soil by Corn Stalk Biochar/C3N4 Composites

Water Air & Soil Pollution, Год журнала: 2024, Номер 236(1)

Опубликована: Ноя. 27, 2024

Язык: Английский

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Efficient removal of herbicide 2,4-dichlorophenoxyacetic acid from aqueous solution investigated by batch, column, and membrane separation methods

Separation and Purification Technology, Год журнала: 2024, Номер unknown, С. 130868 - 130868

Опубликована: Дек. 1, 2024

Язык: Английский

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