Construction of ionic liquid modified MIL-88(Fe)–NH2 for efficient separation and enrichment of bisphenols contaminants in water and honey

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160784 - 160784

Published: Feb. 1, 2025

Language: Английский

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Tailoring the synergistic effect of integrated polypyrrole hydrogel on the adsorption activity of rice husk-based activated carbon (polypyrrole/activated carbon composite) for bisphenol-A and 4-chlorophenol: experimental and theoretical analysis

Frontiers in Bioengineering and Biotechnology, Journal Year: 2025, Volume and Issue: 13

Published: March 21, 2025

Rice husk-derived activated carbon was hybridized with polypyrrole hydrogel (Pyh), producing advanced nanocomposite (Pyh/AC). The composite applied as an enhanced adsorbent for two forms of toxic phenolic compounds, particularly bisphenol-A (BSP-A) and 4-chlorophenol (4-CL). adsorption studies were evaluated considering the synthetic effect Pyh based on criteria statistical physics equilibrium modeling. reported saturation capacities BSP-A 4-CL using Pyh/AC are 321.4 mg/g 365.8 mg/g, respectively. These values significantly higher than estimated in separated form. analysis steric properties validated about 169.7 119.5 active site density during uptake 4-CL, densities (110.5 99.3 (4-CL)), demonstrating positive impact hybridization process terms surface area, porosity, incorporated chemical functional groups. Furthermore, capacity each structure to accommodate up 3 molecules 6 displays operation multi-molecular mechanisms ordering these adsorbed vertically non-parallel forms. energies, either classic (<21 kJ/mol) or (<20 isotherm studies, reflect physisorption compounds Pyh/AC. also shows thermodynamically stable reactions that occurred exothermic, favorable, spontaneous properties.

Language: Английский

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Adsorptive Removal of Bisphenol A by Polyethylene Meshes Grafted with an Amino Group-Containing Monomer, 2-(Dimethylamino)Ethyl Methacrylate

Physchem, Journal Year: 2024, Volume and Issue: 4(4), P. 431 - 446

Published: Oct. 25, 2024

The adsorptive removal of Bisphenol A (BPA) with the PE meshes photografted 2-(dimethylamino)ethyl methacrylate (DMAEMA) was performed by varying grafted amount, pH value, BPA concentration, and temperature, adsorption performance correlated equilibrium, kinetic, isotherm models. In addition, regeneration DMAEMA-grafted (PE-g-PDMAEMA) discussed from repetitive adsorption/desorption process. capacity had maximum value at amount 2.6 mmol/g initial 8.0. increase in protonation dimethylamino groups on PDMAEMA chains dissociation phenol present outer solution during process results adsorption. followed pseudo second-order equation. enhanced increasing concentration equilibrium data fit to Langmuir stayed almost constant whereas k2 increased against temperature. These comprehensively emphasized that occurred through chemical interaction or ionic bonding a anion terminal protonated group. Desorption NaOH entirely desorbed more than 20 mM. cycle 8.0 desorption 100 mM repeated five times without loss structural damage. indicate PE-g-PDMAEMA can be used as regenerative adsorbent for aqueous medium.

Language: Английский

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Magnetic adsorbents for removal of bisphenol A: Design strategies of materials and adsorption mechanisms

Chemosphere, Journal Year: 2024, Volume and Issue: 368, P. 143790 - 143790

Published: Nov. 1, 2024

Language: Английский

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