Amorphous-dominated MgO hollow spheres enhanced fluoride adsorption: Mechanism analysis and machine learning prediction

The Journal of Chemical Physics, Год журнала: 2025, Номер 162(1)

Опубликована: Янв. 2, 2025

Amorphous-dominated magnesium oxide hollow spheres (A-MgO) were prepared using a spray-drying method in this study. These exhibited excellent sphericity, large specific surface areas, and abundant porosity. A-MgO outstanding fluoride adsorption properties, with maximum capacity of 260.4 mg/g. When the pH value was less than 8, removal percentage remained more 87.4%. Moreover, above 75% even after five application cycles. In addition, research revealed that SO42-, CO32-, PO43- exerted pronounced effect on removal, whereas coexisting ions such as Br-, Cl-, NO3-, HCO3- had minimal impact process. An in-depth analysis mechanism demonstrated process by involves various synergistic mechanisms, electrostatic adsorption, ion exchange, oxygen vacancy physical pore filling. To predict performance under complex conditions, high-performance machine learning model, GBDT-S, developed hyperparameter optimization. The R2 0.99 0.80 for training testing datasets, respectively, RMSE 3.26 3.89. Interpretative SHapley Additive exPlanations technology indicated reaction time, concentration, key factors influencing percentage.

Язык: Английский

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Effect of pre-autoclaving treatment on volume stability and compressive strength of carbonated magnesium slag

Journal of Magnesium and Alloys, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Язык: Английский

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Advancing Sustainable Food Packaging: the Role of Green Nanomaterials in Enhancing Barrier Properties

Food Engineering Reviews, Год журнала: 2025, Номер unknown

Опубликована: Март 25, 2025

Язык: Английский

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An Overview of Recent Advances in Inorganic Nanomaterials and MOFs in Modification of Forward Osmosis Membranes for Industrial Wastewater Treatment

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Язык: Английский

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Tailoring Morphology of MgO with Mg-MOF for the Enhanced Adsorption of Congo Red

ACS Omega, Год журнала: 2024, Номер 9(40), С. 41676 - 41686

Опубликована: Сен. 27, 2024

The active site is a highly anticipated property of adsorbent in the field separation, as it enables concurrent enhancement both adsorption efficiency and rate. Herein, employing morphology-oriented regulation, we successfully fabricated heterogeneous MgO from magnesium-based metal-organic framework (MOF) precursor, octahedral MgO-M laminated sheets MgO-P, for capture Congo red (CR). Specifically, octahedron exhibits greater abundant moderately strongly alkaline sites, which facilitate CR. Furthermore, synergistic effect between lattice oxygen further enhances process. data align more closely with Pseudo-second-order kinetic model Langmuir models. Notably, exceptional capacity (exceeding 1900 mg·g

Язык: Английский

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Development, analysis, and effectiveness of an F-C-MgO/rGOP catalyst for the degradation of atrazine using ozonation process: Synergistic effect, mechanism, and toxicity assessment

Journal of Environmental Management, Год журнала: 2025, Номер 374, С. 123990 - 123990

Опубликована: Янв. 10, 2025

Язык: Английский

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Evaluating the CO₂ capture potential of MgO sheets: a DFT study on the effects of vacancy and Ni doping for assessing environmental sustainability

RSC Advances, Год журнала: 2025, Номер 15(5), С. 3047 - 3059

Опубликована: Янв. 1, 2025

Investigations on two-dimensional materials for efficient carbon dioxide (CO2) capture and storage have recently attracted much attention, especially in the global industrial sector. In this work, CO2 uptake by three configurations of magnesium oxide was investigated using density functional theory. analysis performed considering geometrical, thermophysical, vibrational, electronic optical properties. Results indicated that adsorption (MgO) sheets is a spontaneous process accompanied decrease Gibbs free energy. Moreover, molecular entropy enthalpy adsorbed sheet were decreased, indicating entire enthalpy-driven. Among pristine, vacant nickel-doped (Ni-doped) MgO sheets, Ni-doped system found to highest values energy, order -51.366 kJ mol-1-K, -65.105 mol-1 127.606 J mol-1, respectively. It also adsorb ultraviolet visible (UV-Vis) regions within range 100-850 nm. Electronic interactions demonstrated metallicity significantly induced Ni impurity states, which enhanced ability. Notably, hybrid orbitals between p y z revealed strong physisorption, as confirmed partial states (PDOS). The findings research promote sustainability encouraging future experimentalists use better surface capture.

Язык: Английский

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A new Co-based complex using as a peroxymonosulfate activator for efficient degradation of Rhodamine B

Journal of Molecular Structure, Год журнала: 2025, Номер unknown, С. 141999 - 141999

Опубликована: Март 1, 2025

Язык: Английский

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Facile Synthesis of Magnesium Oxide Nanoparticles for Effective Photocatalytic Degradation of Dyes

Asian Journal of Chemistry, Год журнала: 2025, Номер 37(4), С. 925 - 930

Опубликована: Март 29, 2025

Significant environmental challenges require to be addressed efficiently decompose the organic pollutants. Herein, a novel photocatalytic approach is proposed that leverages advanced nanomaterials improve pollutant removal rates. The magnesium oxide nanoparticles were synthesized using simple chemical simultaneous precipitation method, utilizing nitrate as main precursor. microstructural analysis of samples was investigated by XRD and SEM techniques. An absorption shifting toward blue end spectrum observed in UV-VIS suggests development MgO nanoparticles. Energy-gap energies examined function calcination temperature band-gap decreased from 5.43-5.04 eV, change attributed grain growth samples. This finding aligns with particle sizes determined SEM. typical ranged between 5-23 nm. demonstrated remarkable light-activated catalytic efficiency for reduction methyl orange Victoria dyes under UV light exposure. Based on results, large number native defects associated excellent performance

Язык: Английский

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Chemisorption of Emerging Contaminants (F−, AsIII/V, Pb2+) Using MOF for Sustainable Water Treatment: A Critical Review

Journal of Inorganic and Organometallic Polymers and Materials, Год журнала: 2025, Номер unknown

Опубликована: Март 27, 2025

Язык: Английский

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