New Hybrid Adsorbents Based on Polyaniline and Polypyrrole with Silicon Dioxide: Synthesis, Characterization, Kinetics, Equilibrium, and Thermodynamic Studies for the Removal of 2,4-Dichlorophenol

Polymers, Journal Year: 2023, Volume and Issue: 15(9), P. 2032 - 2032

Published: April 25, 2023

In the current study, polyaniline and polypyrrole with silicon dioxide (PAni:PPy@SiO2) were combined to formulate a new adsorbent, which was examined using XRD, TEM, SEM, FTIR, TGA, BET, adsorption kinetics investigated by UV–vis spectroscopy. The optical band gap also evaluated. electrochemical behavior cyclic voltammograms. Moreover, experimental conditions used evaluate 2,4-dichlorophenol (2,4-DCP) based on pH, temperature, reaction time, initial concentration. analytical isotherm data determined Langmuir, Freundlich, Temkin, Sips, Redlich–Peterson models. For analysis of kinetic data, pseudo-first- -second-order models intraparticle diffusion model investigated. It found that this adsorbent possessed highest efficiency after several regeneration cycles. Furthermore, thermodynamic parameters adsorption, such as entropy (ΔS), enthalpy (ΔH), standard Gibbs measured. These results suggest PAni:PPy backbone can generally be better applied for elimination appropriately dispersing it over surface suitable SiO2. This search provides novel way develop separable, high-performance adsorbents adsorbing organic contamination from wastewater.

Language: Английский

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Removal performance and adsorption kinetics of dyes by a Co-based metal organic framework

Microporous and Mesoporous Materials, Journal Year: 2023, Volume and Issue: 360, P. 112665 - 112665

Published: June 10, 2023

Language: Английский

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A response surface methodology approach for the removal of methylene blue dye from wastewater using sustainable and cost-effective adsorbent

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 184, P. 129 - 150

Published: Feb. 3, 2024

Potable water availability is becoming increasingly challenging due to increasing level of global population and industrial revolution. The disproportionate use methylene blue (MB), particularly in applications, a growing concern its high resistance biodegradation propensity taint aquatic environments. In this study, we developed novel eco-friendly calcium oxide nanoparticles from eggshells fishbones (CaONPs-ES CaONPs-FB) decorated them on graphene (GO) surfaces. Both nanocomposites (CaONPs-ES@GO CaONPs-FB@GO) were characterized using state-art-instruments used for the removal MB aqueous solutions. transmission electron. Additionally, adsorptive performance CaONPs-ES@GO CaONPs-FB@GO their mechanisms interaction with investigated. BET, SEM/EDX, XPS results revealed that predominantly mesoporous, surface areas 112 m²/g 108 m²/g, respectively. temperature-dependent adsorption isotherms kinetics towards consistent Redlich-Peterson pseudo-second-order models, model demonstrated an similarity Freundlich more than Langmuir model, suggesting dominance heterogeneous multilayer mechanism. synthesized exhibited reusability stability (>70%) even after 10 successive adsorption-desorption cycles. Thermodynamic evaluations process was spontaneous, endothermic, physically driven. outstanding selective behaviour mixture containing MB/RhB MB/MO separation efficiency 99.10% 77.34% CaO-ES@GO, 61.23% 47.81% CaO-FB@GO particulate within primarily involved π-π interaction, hydrogen bonding, pore-filling, electrostatic attraction. cost analysis are economical treating large-scale application. Based statistical response methodology (RSM), contributing effects temperature adsorbent dosage, as well single effect pH, had most significant impact removal. demonstrate promising potential sustainable treatment.

Language: Английский

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Facile synthesis of a three-dimensional Ln-MOF@FCNT composite for the fabrication of a symmetric supercapacitor device with ultra-high energy density: overcoming the energy storage barrier

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(17), P. 7477 - 7497

Published: Jan. 1, 2024

A novel lanthanide MOF-FCNT composite is fabricated and employed as a symmetric supercapacitor (SSC) device with the highest energy density reported so far.

Language: Английский

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Surface coated Guar gum biocomposite (Zeolite imidazolate framework (ZIF-8) - Guar gum – Polyvinylpyrrolidone) as an environmentally friendly adsorbent: Preparation, isotherm and kinetics of pollutant removal

Journal of Molecular Structure, Journal Year: 2024, Volume and Issue: 1304, P. 137642 - 137642

Published: Jan. 26, 2024

Language: Английский

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In Vitro Hemoglobin Binding and Molecular Docking of Synthesized Chitosan-Based Drug-Carrying Nanocomposite for Ciprofloxacin-HCl Drug Delivery System

ACS Omega, Journal Year: 2024, Volume and Issue: 9(6), P. 6339 - 6354

Published: Jan. 31, 2024

Understanding the intermolecular interactions between antibiotic drugs and hemoglobin is crucial in biological systems. The current study aimed to investigate preparation of chitosan/polysorbate-80/tripolyphosphate (CS-PS/TPP) nanocomposite as a potential drug carrier for Ciprofloxacin-HCl (CFX), intended controlled release formulation further used interact with bovine hemoglobin. Fourier transform infrared (FT-IR) spectroscopy, thermogravimetric analysis–differential thermal analysis (TGA-DTA), scanning electron microscopy (SEM), dynamic light scattering (DLS), X-ray diffraction analyses were characterize CS-PS/TPP its CFX-loaded nanocomposite. second series biophysical properties performed on Ciprofloxacin-loaded (NCFX) interaction (BHb). (CFX NCFX) redox protein investigated first time through vitro experimental techniques provide comprehensive knowledge drug–protein binding interactions. Additionally, effect inclusion PS-80 CFX-BHb was also studied at different concentrations using fluorescence ultraviolet–visible (UV–Vis) circular dichroism (CD) under physiological conditions. process CFX NCFX spontaneous, BHb quenched due static mechanism formation (CFX/BHb) (NCFX/BHb) complexes. Thermodynamic parameters ΔG, ΔH, ΔS various temperatures indicate that hydrogen bonding van der Waals forces play major role association.

Language: Английский

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Engineered Cementitious Composites (ECC) Through Nano-Composite Integration

Advances in chemical and materials engineering book series, Journal Year: 2024, Volume and Issue: unknown, P. 210 - 243

Published: Feb. 9, 2024

This chapter explores the integration of nano-composite materials into engineered cementitious composites (ECC), highlighting its significant impact on structural resilience, durability, and performance. It discusses innovative methodologies advancements in ECC formulation, including nanoparticles like carbon nanotubes, graphene, nano-sized additives. The advantages include enhanced strength, improved ductility, increased resistance to environmental stressors. also examines sustainability quotient potential challenges large-scale implementation. promises a sustainable future for construction practices.

Language: Английский

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Urea‐Functionalized Degradable Material as an Efficient Adsorbent for Amphiphilic Dyes: Rhodamine B and Methylene Blue

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(2)

Published: Jan. 1, 2025

Abstract Here we report urea‐functionalized material P‐UR1 invoked to analyze the dye adsorption property in aqueous medium. The unsaturated UR1 and have been well characterized using different spectroscopic analytical techniques. hydrothiolated exhibited viscoelasticity. BET N 2 sorption isotherm revealed exhibit porosity with a pore diameter of 15 nm surface area 8.05 cm /g. kinetic studies reflect that process follows pseudo‐second‐order model. Also, analysis showed Langmuir isotherm. good response recyclability for rhodamine B (RH B) ethanol. experimental observation was supported by DFT calculation, where RH + x MB , = 1, 2, complexes were examined. interaction UR12 both air solvent phase, indicates efficient interaction. stabilization energy supports dyes methylene blue (MB) onto material. Such urea‐derived functional opens scope textile industries.

Language: Английский

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Emerging nanotechnologies in adsorption of dyes: a comprehensive review of carbon and metal oxide-based nanomaterials

Adsorption, Journal Year: 2025, Volume and Issue: 31(2)

Published: Jan. 25, 2025

Language: Английский

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The Application of Multifunctional Metal–Organic Frameworks for the Detection, Adsorption, and Degradation of Contaminants in an Aquatic Environment

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1336 - 1336

Published: March 17, 2025

Water pollution poses a severe threat to both aquatic ecosystems and human health, highlighting the crucial importance of monitoring regulating its levels in water bodies. In contrast traditional single-treatment approaches, multiple-treatment methods enable simultaneous detection removal pollutants using single material. This innovation not only offers convenience but also fosters more holistic effective approach remediation. Metal–organic frameworks (MOFs) are versatile porous materials that offer significant potential for use wastewater treatment. article examines latest developments application MOFs multifaceted used removal, or degradation contaminants. Some exhibited different functions contaminants, some showed one function (adsorption detection) than contaminant. All multifunctional facilitate multiple treatment real wastewater. Lastly, existing challenges future outlooks concerning MOF addressed this paper.

Language: Английский

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