Advanced applications of hydroxyapatite nanocomposite materials for heavy metals and organic pollutants removal by adsorption and photocatalytic degradation: A review

Chemosphere, Journal Year: 2024, Volume and Issue: 358, P. 142236 - 142236

Published: May 3, 2024

Language: Английский

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Advancements in adsorption and photodegradation technologies for Rhodamine B dye wastewater treatment: fundamentals, applications, and future directions

Green Chemical Engineering, Journal Year: 2023, Volume and Issue: 5(4), P. 440 - 460

Published: Dec. 30, 2023

Organic dye pollutants present in wastewater pose a significant global challenge. Among pollutants, the synthetic Rhodamine B (RB) stands out due to its non-biodegradable nature and associated neurotoxic, carcinogenic, respiratory irritant properties. Extensive research has been conducted on efficacy of adsorption photodegradation techniques for removal RB from wastewater. While advanced oxidation processes (AOPs) have gained considerable attention their effectiveness recent years, underlying behaviors mechanisms these technologies remain incompletely understood. Therefore, comprehensive summary progress this domain is imperative clarify basics up-to-date achievements. This review provides an in-depth exploration fundamentals, advancements, future trajectories treatment technologies, mainly encompassing photodegradation. work starts with general introduction outlining sources, toxicity, diverse applicable strategies. Subsequently, it thoroughly examines crucial within non-photochemical, photochemical, such as UV light-assisted AOP, catalyst-assisted ozonation, Fenton systems, electrochemical technology. The primary objective furnish broad overview techniques, elucidating effectiveness, limitations, applicability. Following this, encapsulates state-of-the-art computational simulations pertaining interactions clays other adsorbents. Lastly, delves into column dye, elucidates various influencing factors, including bed height, feed concentration, pollutant feeding or flow rate, regeneration. panoramic aims provide valuable insights suitable gaps, applicability containing dye.

Language: Английский

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Molecular simulation-based insights into dye pollutant adsorption: A perspective review

Advances in Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 333, P. 103281 - 103281

Published: Aug. 24, 2024

Growing concerns about environmental pollution have highlighted the need for efficient and sustainable methods to remove dye contamination from various ecosystems. In this context, computational such as molecular dynamics (MD), Monte Carlo (MC) simulations, quantum mechanics (QM) calculations, machine learning (ML) are powerful tools used study predict adsorption processes of dyes on adsorbents. These provide detailed insights into interactions mechanisms involved, which can be crucial designing systems. MD detailing arrangements, dyes' behaviour interaction energies with They simulate entire process, including surface diffusion, solvent layer penetration, physisorption. QM especially density functional theory (DFT), determine structures reactivity descriptors, aiding in understanding mechanisms. identify stable configurations like hydrogen bonding electrostatic forces. MC simulations equilibrium properties by sampling configurations. ML proven highly effective predicting optimizing processes. models offer significant advantages over traditional methods, higher accuracy ability handle complex datasets. optimize conditions, clarify adsorbent functionalization roles, removal efficiency under conditions. This research explores MD, MC, QM, approaches connect macroscopic phenomena. Probing these techniques provides energetics pollutants surfaces. The findings will aid developing new materials removal. review has implications remediation, offering a comprehensive at scales. Merging microscopic data observations enhances knowledge pollutant adsorption, laying groundwork efficient, technologies. Addressing growing challenges ecosystem protection, contributes cleaner, more future. • Enviro concern drives eco-friendly Computation unveils Study bridges dynamics, Carlo, mechanics. Insights inform novel adsorbents Integration shapes greener solutions.

Language: Английский

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Navigating the molecular landscape of environmental science and heavy metal removal: A simulation-based approach

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: 410, P. 125592 - 125592

Published: July 20, 2024

Heavy metals pose a significant threat to ecosystems and human health because of their toxic properties ability bioaccumulate in living organisms. Traditional removal methods often fall short terms cost, energy efficiency, minimizing secondary pollutant generation, especially complex environmental settings. In contrast, molecular simulation offer promising solution by providing in-depth insights into atomic interactions between heavy potential adsorbents. This review highlights the for removing types pollutants science, specifically metals. These powerful tool predicting designing materials processes remediation. We focus on specific like lead, Cadmium, mercury, utilizing cutting-edge techniques such as Molecular Dynamics (MD), Monte Carlo (MC) simulations, Quantum Chemical Calculations (QCC), Artificial Intelligence (AI). By leveraging these methods, we aim develop highly efficient selective unravelling underlying mechanisms, pave way developing more technologies. comprehensive addresses critical gap scientific literature, valuable researchers protection health. modelling hold promise revolutionizing prediction metals, ultimately contributing sustainable solutions cleaner healthier future.

Language: Английский

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Molecular simulation-based assessing of a novel metal-organic framework modified with alginate and chitosan biopolymers for anionic reactive black 5 and cationic crystal violet pollutants capture

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: 354, P. 128986 - 128986

Published: Feb. 1, 2025

Language: Английский

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Removal of crystal violet dye using a three-dimensional network of date pits powder/sodium alginate hydrogel beads: Experimental optimization and DFT calculation

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 251, P. 126270 - 126270

Published: Aug. 14, 2023

Language: Английский

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CaSnO3/g-C3N4 S-scheme heterojunction photocatalyst for the elimination of erythrosine and eriochrome black T from water under visible light

Results in Engineering, Journal Year: 2024, Volume and Issue: 21, P. 101903 - 101903

Published: Feb. 7, 2024

Heterojunction photocatalysts are critical for facilitating long-term photoinduced carrier separation and enhancing single photocatalyst photocatalytic performance. As part of the present study, calcium stannate (CaSnO3, CSO) was produced using a simple low-cost auto-combustion method, CaSnO3/g-C3N4 (CSO/CN) nanocomposites with different CSO contents were prepared co-precipitation method aided by ultrasound. An investigation erythrosine (ER) eryochrom black T degradation capacities CSO, CN, several CSO/CN carried out. According to results, rate affected dye type, amount catalyst, as well concentration ER. With 70 mg (0.1:1), nanocomposite 10% demonstrated greatest efficiency, which resulted in 86.2% ER being destroyed. Scavenger experiments revealed that superoxide radicals exhibited exceptional characteristics photoreactions. A higher proficiency (86.2%) contributed highest constant (k = 0.022 min−1), according kinetics study. result these findings, there is potential be used water treatment applications.

Language: Английский

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Efficiently removing four cationic dyes from aqueous solution by magnetite@polypyrrole@2-acrylamido-2-methyl-1-propanesulfonic acid microspheres

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 700, P. 134659 - 134659

Published: July 1, 2024

Water pollution caused by various cationic dyes is becoming more and serious. A combination of magnetic materials, conductive polymers, some strong adsorption groups expected to solve this challenge. Herein, magnetite (Fe3O4)@polypyrrole@2-acrylamido-2-methyl-1-propanesulfonic acid (Fe3O4@PPy@AMPS) fabricated as adsorbent for removing methylene blue (MB), rhodamine B (RhB), malachite green (MG), crystalline violet (CV) from aqueous solution. The investigation the factors including type, concentration, time, temperature demonstrates that Fe3O4@PPy@AMPS has superior properties adsorb four dyes. maximum capacity these separately 183.486, 215.054, 144.718 194.175 mg/g. Notably, although it goes through five cycles, composite maintains a remarkable dye removal efficiency exceeding 95 %. Kinetic analysis reveals process conforms closely pseudo-second-order kinetic model. isotherm Langmuir model, signifying monolayer Thermodynamic parameters also indicate endothermic spontaneous. Furthermore, density functional theory (DFT) simulations affirm molecular interactions between dyes, elucidating mechanism. high recyclable nature underscores its significance in addressing wastewater remediation.

Language: Английский

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Enhanced Removal of Rhodamine b Dye from Aqueous Media via Adsorption on Facilely Synthesized Zinc Ferrite Nanoparticles

Inorganics, Journal Year: 2024, Volume and Issue: 12(7), P. 191 - 191

Published: July 12, 2024

This paper studies the synthesis, characterization, and application of ZnFe2O4 nanoparticles for removal rhodamine b dye from aqueous media. Utilizing combustion procedure, were synthesized using two different fuels: glutamine (SG) L-arginine (SA). In addition, characterized through various techniques, including Fourier transform infrared (FTIR), X-ray diffraction (XRD), field emission scanning electron microscope (FE-SEM), energy-dispersive (EDX), high resolution transmission (HR-TEM), Brunauer-Emmett-Teller (BET) surface area analysis. XRD analysis verified creation a cubic spinel structure without any contaminants, revealing average crystallite sizes 43.72 29.38 nm SG SA samples, respectively. The FTIR spectra exhibited peaks indicative metal-oxygen bond stretching, verifying presence formation. Elemental via EDX confirmed stoichiometric composition typical zinc ferrite. FE-SEM imaging displayed that samples are composed particles with irregular spherical shapes, measuring diameters 135.11 59.89 nm, Furthermore, BET is 60 85 m2/g, maximum adsorption capacity sample (409.84 mg/g) towards was higher than (279.33 mg/g), which ascribed to its larger porosity. Kinetic equilibrium revealed process onto followed Langmuir isotherm pseudo-second-order model. Thermodynamic indicated spontaneous, exothermic, physical. study concludes (SA) exhibit enhanced efficiency due their smaller size, increased area, porosity compared those (SG). optimum conditions found be at pH 10, contact time 70 min, temperature 298 K. These findings underscore potential L-arginine-synthesized effective sustainable environmental cleanup applications.

Language: Английский

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Photocatalytic activity of ZnMn2O4/TiO2 heterostructure under solar light irradiation: Experimental and theoretical study

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1306, P. 137834 - 137834

Published: Feb. 20, 2024

Language: Английский

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