Synthesis and characterization of metal oxide dopped beaded sugarcane bagasse fly ash for direct red 28 dye removal

Journal of Industrial and Engineering Chemistry, Год журнала: 2023, Номер 128, С. 495 - 514

Опубликована: Авг. 18, 2023

Язык: Английский

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High-efficient removal of anionic dye from aqueous solution using metal-organic frameworks@chitosan aerogel rich in benzene structure

International Journal of Biological Macromolecules, Год журнала: 2023, Номер 256, С. 128433 - 128433

Опубликована: Ноя. 25, 2023

Язык: Английский

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Magnetic Iron Oxide Kaolinite Nanocomposite for Effective Removal of Congo Red Dye: Adsorption, Kinetics, and Thermodynamics Studies

Water Conservation Science and Engineering, Год журнала: 2023, Номер 8(1)

Опубликована: Авг. 3, 2023

Abstract Magnetic iron oxide/kaolinite (MK) composite was synthesized using co-precipitation method and characterized by XRD, FTIR, SEM/EDX, TGA, XPS, VSM, zeta potential analyses. The consisting of kaolinite halloysites with small clusters oxide on its outer surface used in batch experiments to adsorb Congo red dye at different temperatures. adsorption data were fitted three isotherms Langmuir isotherm best fitting the data. maximum capacity MK adsorbent found be around 45.59 mg/g. Adsorption kinetics obtained temperatures pseudo-first-order pseudo-second-order models, where latter model able better interpret a rate constant 8.60 × 10 −2 g.mg −1 .min . Further analysis kinetic revealed that mechanism could explained via intraparticle diffusion model. Thermodynamic parameters ΔG°, ΔH°, ΔS° for process determined results revealing favorable, endothermic, physical nature. Finally, comparison other adsorbents showed exhibits significant as an removal organic pollutants from aqueous solutions.

Язык: Английский

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Algal biochar: A natural solution for the removal of Congo red dye from textile wastewater

Journal of the Taiwan Institute of Chemical Engineers, Год журнала: 2023, Номер unknown, С. 105312 - 105312

Опубликована: Дек. 1, 2023

The present study was aimed at synthesizing algae-derived biochar to examine its effectiveness and adsorption capacity remove Congo red dye. independent variables such as dye concentration, adsorbent dose, time were optimized by using a central composite design (CCD). An experiment conducted evaluate equilibrium detailed experimental characterized through XRD, TGA, SEM, EDX, FTIR analysis. This paper also focuses on evaluating non-linear isotherm kinetics describe the mechanism along with applying an Artificial neural network validate removal efficiency. maximum efficiency (96.14 %) of algal (186.94 mg/g) achieved parameters 1 mg/L 0.1 g 240 min contact time. Adsorption behavior well described Langmuir Pseudo-nth order. A multilayer perceptron (MLP) MLP 2–5–1 structure best validates response. Overall, sheds light that Algal-derived is potential material for elimination contributes achieving sustainable development goals.

Язык: Английский

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Hybrid mesoporous microbeads based on sheets-like sulfur-doped copper oxide embedded in calcium alginate-derived carbon for batch and columnar adsorption of cationic dye

Microporous and Mesoporous Materials, Год журнала: 2024, Номер 378, С. 113253 - 113253

Опубликована: Июль 11, 2024

Язык: Английский

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Synthesis of hydroxyapatite from Faunus ater shell biowaste

Next Materials, Год журнала: 2024, Номер 3, С. 100157 - 100157

Опубликована: Фев. 24, 2024

The current research involved the synthesis of hydroxyapatite powders using Faunus ater shell (FaS), which is a snail found in brackish water, as source calcium. Hydroxyapatite (HAp) produced through hydrothermal FaS, employing calcination temperatures at 900 °C (HAp900) and 1000 (HAp1000). samples underwent analysis scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) X-ray diffraction (XRD) to determine phases present. Additionally, quantitative chemical synthesized heat-treated was conducted fluorescence (XRF) spectroscopy. XRD determined that HAp900 HAp1000 exhibited amorphous structures, with additional presence Tetracalcium Phosphate (TTCP) phase detected HAp 900. Furthermore, XRF on both samples, revealing molar ratios Ca/P 2.56 1.67 for respectively. FTIR spectrum revealed contains phosphate, carbonate, hydroxyl groups.

Язык: Английский

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Adsorption removal of uranium from aqueous solution by hydroxyapatite: Recent advances and prospects

Annals of Nuclear Energy, Год журнала: 2024, Номер 206, С. 110609 - 110609

Опубликована: Май 11, 2024

Язык: Английский

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Observation of inherited plasmonic properties of TiN in titanium oxynitride (TiOxNy) for solar-drive photocatalytic applications

Environmental Research, Год журнала: 2023, Номер 229, С. 115961 - 115961

Опубликована: Апрель 21, 2023

Язык: Английский

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The electrochemical and in-vitro study on electrophoretic deposition of chitosan/gelatin/hydroxyapatite coating on 316L stainless steel

Carbohydrate Polymer Technologies and Applications, Год журнала: 2023, Номер 5, С. 100322 - 100322

Опубликована: Май 20, 2023

In the present study, chitosan/gelatin/hydroxyapatite (HA) coating was developed on 316L stainless steel (SS) via electrophoretic deposition (EPD). This type of film exhibits a hierarchical structure consisting hydroxyapatite particles dispersed in chitosan/gelatin matrix. An array different analytical, electrochemical, and bioactive techniques used to investigate coatings. Scanning electron microscopy (SEM) transmission (TEM) images showed that HA are well X-ray photoelectron spectroscopy (XPS) results revealed phosphorus is bonded oxygen confirmed by Fourier transform infrared (FTIR) spectrum. The electrochemical studies chitosan/gelatin/HA bare SS were conducted impedance (EIS) potentiodynamic polarization. indicated corrosion resistance (conducted simulated body fluid (SBF)) mainly contributed embedded Moreover, pitting potential composite coatings increased compared SS. Chitosan/gelatin/HA apatite crystals upon immersion SBF, thus confirming nature coating. Furthermore, cyto-compatible allows osteoblast cells proliferate grow. suitable candidate for biomedical applications regrading mechanical chemical attack.

Язык: Английский

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Synthesis and Characterization of ZnO Doped TiO2 Nanocomposites for Their Potential Photocatalytic and Antimicrobial Applications

Catalysts, Год журнала: 2023, Номер 13(2), С. 215 - 215

Опубликована: Янв. 17, 2023

As a result of the sol-gel method, we were able to produce pure ZnO and ZnO-doped TiO2 nanocomposites. The hexagonal wurtzite phase in products was discovered by powder X-ray diffraction (XRD). are typically crystallites, formed according Debye Scherrer formula. Nanocomposites with significant morphological changes created using process, including those that resembled rocks. To determine composition Zn, O, Ti atoms samples, multidimensional analysis performed. There is an energy gap between 3.61 eV, as determined UV-vis spectroscopy. In this study, nanocomposites used study degradation methylene blue (MB) under visible light irradiation. Over irradiation course 6 h, composite (84%) studied. kinetic analysis, made from followed pseudo-first-order kinetics. presence nanocomposites, antibacterial activity significantly improved. This shown be effective against Gram-positive Gram-negative bacteria (Escherichia coli B. sublittus). evidence metal oxide produced can appropriate antimicrobial disinfection alternative, particularly biomedical settings, reported more detail.

Язык: Английский

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