Adsorption Performance for Chromium(VI) of a UiO-66-Ce Metal–Organic Framework Built by DL-Aspartic Acid DOI Open Access

Xiaoyi Lin,

Sabrina Yanan Jiang, Gang Li

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(21), P. 5293 - 5293

Published: Oct. 30, 2024

Metal–organic frameworks (MOFs) have recently received a lot of interest for their use in adsorbing and eliminating hexavalent chromium from water. Obtaining low-cost, biocompatible, environmentally friendly MOFs research this field is vital. One very stable three-dimensional UiO-66-Ce(IV) MOF, Ce-asp, was synthesized with high yield using an amino acid ligand, DL-aspartic acid. As result, the adsorption characteristics MOF against ions aqueous solution were examined. The effects time, pH, dose, beginning chromium(VI) content investigated on adsorption. More crucially, mechanism proposed, setting groundwork its future removal real-world waters.

Language: Английский

Recovery of Au(III) from electronic waste using solid phase extraction based on a magetic nanobiocomposite, OCBS@Fe3O4 @UiO-66-SH DOI Creative Commons

Parisa Poormoghadam,

Soleiman Bahar,

Yunes Naghdi

et al.

Research Square (Research Square), Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract This study created a zirconium-based MOF (UiO-66-NH2) with thiol groups attached to its magnetic corn surface for adsorption and extraction of Au(III) from electronic waste. Characterization the composite was verified using FTIR, XRD, FESEM, TGA BET techniques. The temperature, period, pH on were investigated. solutions significantly impacts adsorption, 6.0 being optimal value. optimum conditions 50 ◦C, 40 min, 10 mg adsorbent. Moreover, functionalized oxidized corncobs (OCBS@Fe3O4@UiO-66-SH) showed notable ability adsorb 1587 mg/g capacity. With mass ratios competing ions (Mg, Mn, Cu, Zn, Co, Cd, Ni) fixed at 1:1 or extended 1:5, this adsorbent prefers while showing negligible other ions. validated technique extracting various waste samples, achieving high recovery rates (95.30–104.75%), demonstrating effectiveness lack matrix interference. Langmuir, Freundlich, Temkin isotherm models used describe process. Comparing models, Langmuir model most excellent R2 value is best interpreting experimental data. Among three kinetic pseudo-first-order (PFO), pseudo-second-order (PSO) kinetic, interparticle diffusion (ID) PFO exhibited (0.9976). Thermodynamic calculations reveal positive ΔH°, indicating endothermic process, negative ΔG° values representing spontaneous 298–323 K. ΔS° shows that adsorbed molecules are more uniformly dispersed surface, potentially enhancing

Language: Английский

Citations

0
Cadmium Toxicity in Children and Its Detection Using Colorimetric and Fluorimetric Methods DOI
Alaa Shafie, Amal Adnan Ashour

Journal of Fluorescence, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Language: Английский

Citations

0
Hexavalent chromium dual water remediation and sensing based on hybrid polymer/metal-organic framework composites DOI Creative Commons
Ricardo Brito‐Pereira, Joana M. Queirós, Leire Celaya-Azcoaga

et al.

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(5), P. 113839 - 113839

Published: Aug. 15, 2024

Language: Английский

Citations

2
Adsorption Performance for Chromium(VI) of a UiO-66-Ce Metal–Organic Framework Built by DL-Aspartic Acid DOI Open Access

Xiaoyi Lin,

Sabrina Yanan Jiang, Gang Li

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(21), P. 5293 - 5293

Published: Oct. 30, 2024

Metal–organic frameworks (MOFs) have recently received a lot of interest for their use in adsorbing and eliminating hexavalent chromium from water. Obtaining low-cost, biocompatible, environmentally friendly MOFs research this field is vital. One very stable three-dimensional UiO-66-Ce(IV) MOF, Ce-asp, was synthesized with high yield using an amino acid ligand, DL-aspartic acid. As result, the adsorption characteristics MOF against ions aqueous solution were examined. The effects time, pH, dose, beginning chromium(VI) content investigated on adsorption. More crucially, mechanism proposed, setting groundwork its future removal real-world waters.

Language: Английский

Citations

2