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

Fabrication and characterisation of Fe ₃ O ₄ /SBA-16-NH ₂ nanocomposite and its applications as a highly efficient adsorbent for removal of boron from wastewater: equilibrium, kinetic and thermodynamic studies

International Journal of Environmental & Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 20

Published: March 28, 2025

Language: Английский

Synthesis and characterization of a high-performance magnetic nanocomposite adsorbent from pomegranate pomace waste for tannery wastewater treatment

Surfaces and Interfaces, Journal Year: 2025, Volume and Issue: unknown, P. 106480 - 106480

Published: April 1, 2025

Language: Английский