Adsorption of Methylene Blue and Eriochrome Black T onto Pinecone Powders (Pinus nigra Arn.): Equilibrium, Kinetics, and Thermodynamic Studies

Processes, Journal Year: 2024, Volume and Issue: 12(9), P. 2044 - 2044

Published: Sept. 22, 2024

In this study, methylene blue (MB) and eriochrome black T (EBT) dyes were removed with the waste Pinus nigra Arn. powders from Anatolian pinecone (PC-PnA) within framework of sustainability. UV–Vis spectroscopy, X-ray diffraction (XRD), scanning electron microscope (SEM), energy dispersive (EDX), fourier transform infrared spectroscopy (FTIR), thermogravimetry–differential thermal analysis (TGA-DTA), Brunauer–Emmett–Teller (BET) surface area, point zero charge (pHpzc) analyses performed for characterization PC-PnAs. The effects pH, amount adsorbent, time, initial concentration temperature determined by batch adsorption experiments. Four kinetic isotherm models examined, error function tests used most suitable model. According to this, average pore diameters, mass losses at 103.9 721.6 °C pHpzc values PC-PnAs found as 61.661 Å, 5.9%, 30%, 5.77, respectively. Additionally, removal both Langmuir pseudo-second-order. maximum efficiencies (qmax) MB EBT was calculated 91.46 15.85 mg/g, respectively process be endothermic. As a result, PC-PnA particles can an alternative sorbent dyes.

Language: Английский

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Green Synthesis Study: Adsorption of Congo Red Dye with Selenium Nanoparticles Obtained from Prunus Armeniaca L. Leaf Waste

ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(37)

Published: Oct. 1, 2024

Abstract In this study, it was aimed to remove Congo Red (CR) dye in aqueous solution by biosynthesized Selenium Nanoparticles from Prunus armeniaca L. ( PA L‐SeNPs) leaf wastes green synthesis method. The characteristic structure of L‐SeNPs determined UV‐vis spectroscopy, X‐ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), energy dispersive (EDX), fourier transform infrared spectroscopy (FTIR), thermogravimetry‐differential thermal analysis (TGA‐DTA), dynamic light scattering (DLS), zetasizer, and point zero charge (pH pzc ). effects pH, adsorbent amount, time, initial concentration, temperature were investigated batch adsorption studies. 2 different kinetic 4 isotherm models tested error functions for the most suitable model. Accordingly, particle size, crystallinity, pH value average surface as 9.969 nm, 48.50 %, 3.47, −23.6 mV, respectively. Also, removal CR with found Pseudo‐second‐order Freundlich, R values 0.996, where optimum 7.00, maximum capacity calculated 96.59 mgCR/g L‐SeNPs. results obtained show that environmentally friendly low‐cost produced method are a alternative dye.

Language: Английский

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Green Synthesis of Fe₃O₄‐Crataegus tanacetifolia (Lam.) Biochar Magnetic Nanocomposites for Adsorption of Naproxen

Chemical Engineering & Technology, Journal Year: 2025, Volume and Issue: unknown

Published: April 15, 2025

Abstract In this study, naproxen (NPX), one of the emerging contaminants was removed by green synthesizing Fe 3 O 4 coated magnetic biochar nanocomposites ( Ct ‐BMNCs) synthesized from Crataegus tanacetifolia Lam. ) wastes. The characteristics ‐BMNCs examined x‐ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive (EDX), Fourier transform infrared spectroscopy (FTIR), thermogravimetry‐differential thermal analysis (TGA‐DTA), dynamic light scattering (DLS), zetasizer, Brunauer‐Emmett‐Teller (BET) UV–Vis spectroscopy, and pH point zero charge (pH pzc ). With batch adsorption tests, effects (4–11), amount adsorbent (2.5–80 g L −1 ), time, initial concentration (3.125–200 mg thermodynamic performed. Also, kinetic isotherm models error functions were used. Accordingly, average surface 5.68 +11.7 mV, respectively. Moreover, reaction exothermic, most suitable Pseudo‐second‐order Freundlich R 2 :0.999). q max 30.12 mgNPX/g ‐BMNCs. Ct‐BMNCs are quite effective in removing NPX.

Language: Английский

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Eco‐Friendly Synthesis of Selenium Nanoparticles via Sternbergia candida: Enhancing Antioxidant Defense and Mitigating Salt Stress in Pepper (Capsicum annuum L.) Plants

ChemistryOpen, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 28, 2025

Abstract Nanoparticles enhance agricultural applications with their bioactivity, bioavailability, and reactivity. Selenium mitigates the adverse effects of salinity on plant growth, boosting antioxidant defense, metabolism, resilience to abiotic stress. Our study applied selenium nanoparticles mitigate salinity‐induced damage support growth. We characterized green‐synthesized analyzed stress‐related metabolites, activities (DPPH, ABTS), phenolic content, reducing powers (CUPRAC, FRAP). Nanoparticle reduced proline MDA levels while chlorophyll, carotenoids, activity total content. An increase was also observed in CUPRAC FRAP capacities. In terms highest value determined SA 1 (4.58±0.40 mg GAE g −1 ) application; DPPH free radical scavenging IC50 A 3 (0.13±0.007 mL application, which closest positive control. The lowest level found (15.00±0.64 nmol FW) (10.08±0.42 ). Comparing results, green synthesis using Sternbergia candida (SC‐SeNP) at different concentrations showed ameliorative various parameters plants, it that salt stress pepper plants were following SC‐SeNP applications.

Language: Английский

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Green and Sustainable Synthesis of Silver Nanoparticles Using Wastes of Crude Drugs for Traditional Medicinal Use in Nara, Japan

Published: Jan. 1, 2025

Language: Английский

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Plant-mediated synthesis of ZnO nanomaterials using pumpkin flower (Cucurbita pepo) extract and its antibacterial and photocatalytic properties

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 23, 2024

Language: Английский

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Adsorption of crystal violet dye with selenium nanoparticles obtained by green synthesis from cherry (Prunus avium L.) fruit stalk

International Journal of Agriculture Environment and Food Sciences, Journal Year: 2024, Volume and Issue: 8(3), P. 521 - 530

Published: July 31, 2024

Crystal violet (CV) dye is a water-soluble, toxic, resistant organic that quite dangerous for the ecosystem and causes environmental pollution. This study synthesized selenium nanoparticles (Se NPs) from agricultural Prunus avium L. (PaL.) wastes removed crystal dye. In batch adsorption tests, effects of pH, amount adsorbent, time, initial concentration, temperature were investigated. this study, where 3 different kinetic isotherm models tested, it was determined most suitable removal CV with PaL-Se NPs Pseudo second order (R2:0.999) Langmuir (R2:0.997), respectively. Additionally, maximum capacity (qmax) calculated as 142.61 mgCV/g NP. Accordingly, can be said low-cost by environmentally friendly methods are alternative

Language: Английский

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