Cited by Microwave synthesis of UiO-66 with encapsulated caffeine: liquor mother reuse and release from polyamide composites

Management of caffeine in wastewater using MOF and perovskite materials: optimization, kinetics, and adsorption isotherm modelling DOI

Amira Essam,

S.I. El‐Dek, Nabila Shehata

et al.

Journal of Environmental Health Science and Engineering, Journal Year: 2024, Volume and Issue: 22(1), P. 345 - 360

Published: May 20, 2024

Abstract Pharmaceuticals and personal care products (PPCPs) have been increasingly used all over the world they reported on water cycle cause contamination. Among these pharmaceuticals is caffeine (CAF). In this work, CAF removal from aqueous samples by metal–organic framework (UIO-66) perovskite (La 0.7 Sr 0.3 FeO 3 ) was achieved. Detailed studies preparation of MOFs oxides compounds presented. Extensive characterizations such as X-Ray diffraction (XRD), field emission scanning electron microscope (FESEM), Fourier transform infrared spectra (FT-IR), N 2 adsorption–desorption isotherms were also carried out to assure proper formation better understand physico-chemical behavior synthesized before after adsorption. Batch experiments adsorption onto both performed compare effectiveness materials competence residue at different conditions including effect pH, initial concentration, contact time. It observed that capacity MOF increased with increasing acidity. On other hand, stable in pH 4–10. The maximum capacities UiO-66 toward are high 62.5 mg g −1 35.25 , respectively. Equilibrium investigated numerous models: Langmuir, Freundlich, Temkin, Redlich-Peterson, Sips, Langmuir-Freundlich, Toth, Kahn, Baudu, Fritz Schlunder. Moreover, kinetics CAF@MOF CAF@Perovskite systems studied five kinetic models (Pseudo-1st -order (PFO), Pseudo-2nd (PSO), Mixed 1st, 2nd-order, Intraparticle diffusion Avrami). best model described mixed 2nd-order model. applied quickly extract successfully. percentage obtained for 0.89% 0.94% respectively within 30 min time which suggests considered promising adsorbents CAF.

Language: Английский

Citations

Improvement of the flame retardancy of polyamide 6 by the incorporation of UiO-66 and UiO-66/melamine DOI