Statistical modeling and optimization of heavy metals (Pb and Cd) adsorption from aqueous solution by synthesis of Fe3O4/SiO2/PAM: isotherm, kinetics, and thermodynamic DOI Creative Commons
Huseyn Osman, Mehmet Uğurlu, Ali İmran Vai̇zoğullar

et al.

Polymer Bulletin, Journal Year: 2024, Volume and Issue: 81(16), P. 14513 - 14545

Published: July 4, 2024

Abstract In this study, magnetic material was synthesized using iron salts, then silicon-specific used to gain porosity, straight-chain polyacrylamide (PAM) modified give the surface functional properties, and final product Fe 3 O 4 /SiO 2 /PAM nanocomposite material. Heavy metal (Pb Cd) removal studies were carried out with composite material, considering central design response methodology (CCD-RSM) optimization model. The effects of various parameters, for example, initial concentration, pH, adsorbent dose, temperature contact time, investigated as a part study. To optimize these CCD-RSM model applied experiments. Analysis variance (ANOVA) evaluate statistical parameters investigate interactions variables. designed experimental set, amount (30 mg), pH 7.0 value, (40 °C), concentration Pb (80 mg/L) Cd (20 90 min time determined optimum conditions. high coefficient determination both metals showed good agreement between results predicted values ( R 0.99; 0.95). TEM, SEM, XRD, FTIR, BET Zeta potential analyses performed characterize structure morphology adsorbent. 2+ heavy studies, maximum adsorption capacities 66.54 13.22 mg/g, respectively. Additionally, isotherms, kinetics thermodynamic modeling conducted. Features such large area capacity nanoparticles observed. demonstrated its an effective ions present in simulated wastewater samples. particular, we can say that has strong selectivity, well affinity Pb(II) ions.

Language: Английский

From biomass waste to bioaerogels - An alternative sustainable approach for wastewater remediation DOI
Priya Arunkumar, Huda M. Alghamdi,

V. Kavinkumar

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 282, P. 136994 - 136994

Published: Nov. 2, 2024

Language: Английский

Citations

4
Development of New Adsorbents MIL‐101(Fe) Loaded Resin D201 Derived From Recycled Waste PET and Investigation of Congo Red Dye Removal DOI
Shaopeng Zhang, Jie Ding, Dayong Tian

et al.

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 27, 2025

ABSTRACT Fe‐based metal organic framework was used to load macroporous resin by repurposing waste polyethylene terephthalate for congo red removal. framework/resin systematically analyzed and various adsorption factors were optimized. Adsorption mechanisms investigated based on kinetics, isotherms, thermodynamics, instruments. The pseudo‐second‐order ( R 2 > 0.997) Langmuir model 0.987) suggest that the process followed a homogeneous monomolecular layer chemisorption. thermodynamic analysis indicated spontaneous endothermic. At pH = 7, maximum capacity 766 mg/g. In addition, exhibited favorable selectivity towards with Cl − , SO 4 2− CO 3 . It could be conveniently separated reused. With help of density functional theory calculations, analyze mechanism in depth. pore filling, electrostatic interactions, π–π stacking, hydrogen bonding. Thus, terephthalate‐derived adsorbents well applied water purification, environmental protection, separation processes.

Language: Английский

Citations

0
Functionalization of Strontium Ferrite Nanoparticles with Novel Chitosan–Schiff Base Ligand for Efficient Removal of Pb(II) Ions from Aqueous Media DOI Creative Commons
Asma S. Al‐Wasidi, Ehab A. Abdelrahman

Inorganics, Journal Year: 2024, Volume and Issue: 12(6), P. 148 - 148

Published: May 29, 2024

Lead contamination in water poses significant health risks, making its removal imperative. In this study, magnetic strontium ferrite (SrFe12O19) nanoparticles were facilely synthesized by the Pechini sol–gel method and subsequently functionalized with a novel chitosan–Schiff base ligand to obtain inorganic/organic nanocomposite for removing Pb(II) ions from aqueous solutions. The was through reaction of chitosan 2,4,5-trihydroxybenzaldehyde. presence two X-ray diffraction (XRD) peaks at 2Ɵ = 10.5° 20.5°, alongside characteristic SrFe12O19 peaks, confirmed functionalization ligand. Additionally, decrease saturation magnetization value 40.29 emu/g pure 17.32 further verified functionalization. carbon (C) nitrogen (N) atoms energy-dispersive (EDX) pattern nanocomposite, addition iron (Fe), (Sr), oxygen (O), also nanocomposite’s maximum adsorption capacity 390.63 mg/g. Moreover, process is endothermic, spontaneous, chemical, occurring via complexation -C=N -OH groups, it fits well Langmuir equilibrium isotherm pseudo-second-order kinetic equation.

Language: Английский

Citations

3
Enhanced Removal of Cd(II) Ions from Aqueous Media via Adsorption on Facilely Synthesized Copper Ferrite Nanoparticles DOI Creative Commons
Nada S. Al‐Kadhi, Maram T. Basha

Molecules, Journal Year: 2024, Volume and Issue: 29(15), P. 3711 - 3711

Published: Aug. 5, 2024

In this study, magnetic copper ferrite (CuFe

Language: Английский

Citations

3
Effect of chitosan and sodium alginate on heavy metal adsorption by natural plant extracts DOI Creative Commons

Sijin Du,

Wenbin Li,

Chengrui Tang

et al.

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 318, P. 100398 - 100398

Published: April 1, 2024

To investigate the effects of chitosan (CS) and sodium alginate (SA) on heavy metal ions adsorption by natural plant extract (Pe), different proportions (0%, 10%, 20%, 50%) CS SA were used to modify Pe prepare CS- SA-modified (CS-Pe SA-Pe). The CS-Pes SA-Pes analyzed spectroscopic test instruments. properties differences Cu2+, Pb2+, Cd2+ under various temperatures, pH, ionic strengths studied. Results displayed that (1) characterization showed attached surface altered morphology surface. was better suited Langmuir model than Freundlich model, maintaining maximum capacity at 378.01–833.83 (Cu2+), 218.66–531.04 (Pb2+), 221.46–384.93 (Cd2+) mmol/kg. (2) Higher pH temperature facilitated pollutants SA-Pes, which followed a chemisorption mechanism. Heavy rose initially then reduced with increasing strength (peak value 0.1 mol/L). Thermodynamic parameters presented spontaneous, primarily chemical, multi-mechanism reaction. (3) maintained approximately 60%–72% raw material triple regeneration. economy (qm/price) modified Pes for ranged from 0.97 6.41 mmol/¥, SA-Pe highest economy.

Language: Английский

Citations

2
Nanoarchitectonics for Biomedical Research: Post‐Nanotechnology Materials Approach for Bio‐Active Application DOI Creative Commons
Katsuhiko Ariga

Advanced NanoBiomed Research, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 1, 2024

Nanoarchitectonics, as a post‐nanotechnology concept, represents methodology for the construction of functional materials employing atoms, molecules, and nanomaterials essential components. The overarching objective nanoarchitectonics is to develop systems comprising multiple units assembled in hierarchical manner, observed biological systems. Nevertheless, such challenging endeavor. It would be prudent, therefore, initially focus on development that interact with complex structures living organisms. Accordingly, this review article addresses topic nanoarchitecture it pertains biomedical applications. This examines current trends research presents examples studies support concept its applications fields. presented are follows: i) molecular developments, which mainly based design assembly; ii) material examples, using components; iii) porous materials, will summarized under heading pore‐engineered due their special structure. Finally, provides an overview these discusses future prospects.

Language: Английский

Citations

2
Statistical modeling and optimization of heavy metals (Pb and Cd) adsorption from aqueous solution by synthesis of Fe3O4/SiO2/PAM: isotherm, kinetics, and thermodynamic DOI Creative Commons
Huseyn Osman, Mehmet Uğurlu, Ali İmran Vai̇zoğullar

et al.

Polymer Bulletin, Journal Year: 2024, Volume and Issue: 81(16), P. 14513 - 14545

Published: July 4, 2024

Abstract In this study, magnetic material was synthesized using iron salts, then silicon-specific used to gain porosity, straight-chain polyacrylamide (PAM) modified give the surface functional properties, and final product Fe 3 O 4 /SiO 2 /PAM nanocomposite material. Heavy metal (Pb Cd) removal studies were carried out with composite material, considering central design response methodology (CCD-RSM) optimization model. The effects of various parameters, for example, initial concentration, pH, adsorbent dose, temperature contact time, investigated as a part study. To optimize these CCD-RSM model applied experiments. Analysis variance (ANOVA) evaluate statistical parameters investigate interactions variables. designed experimental set, amount (30 mg), pH 7.0 value, (40 °C), concentration Pb (80 mg/L) Cd (20 90 min time determined optimum conditions. high coefficient determination both metals showed good agreement between results predicted values ( R 0.99; 0.95). TEM, SEM, XRD, FTIR, BET Zeta potential analyses performed characterize structure morphology adsorbent. 2+ heavy studies, maximum adsorption capacities 66.54 13.22 mg/g, respectively. Additionally, isotherms, kinetics thermodynamic modeling conducted. Features such large area capacity nanoparticles observed. demonstrated its an effective ions present in simulated wastewater samples. particular, we can say that has strong selectivity, well affinity Pb(II) ions.

Language: Английский

Citations

0