Hybrid Materials—Mg3Al-LDH/Ionic Liquids/Chitosan Used in the Recovery Process of Pd Ions from Aqueous Solutions DOI Creative Commons

Emilia Milos,

Laura Cocheci,

Adriana Popa

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 6001 - 6001

Published: Dec. 19, 2024

The recovery of palladium from aqueous solutions is important due to its critical role in various industrial applications and the growing demand for sustainable resource management. This study investigates potential hybrid materials composed Mg3Al layered double hydroxides (LDHs), chitosan, ionic liquids (methyl trialchil ammonium chloride) efficient adsorption ions low-concentration solutions. Comprehensive characterization techniques, including X-ray diffraction (RX), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive (EDX), thermogravimetric analysis (TG), were employed elucidate structural compositional properties materials. results batch experiments demonstrate that each component contributes synergistically process, significantly enhancing overall efficacy recovery. Furthermore, method preparing adsorbent material was found impact effectiveness Among tested, chitosan/Mg3Al/IL exhibited highest capacity (qmax = 98 mg/g), suggesting liquid functionalization most beneficial when applied during synthesis, rather than LDH synthesis process. research underscores viability as a approach recovery, contributing advancements environmental remediation technologies.

Language: Английский

Arginine-modified surface coffee grounds activated carbon for Pb\(^{2+}\) adsorption: Kinetic, isotherm and thermodynamic studies DOI Creative Commons

Jarawee CHUPIROM,

Sirikorn KHAOPHONG,

Nopporn HEMYAKORN

et al.

Journal of Metals Materials and Minerals, Journal Year: 2025, Volume and Issue: 35(1), P. e2148 - e2148

Published: Feb. 21, 2025

This research focuses on enhancing the value of coffee waste by converting it into activated carbon for removing Pb²⁺ ions from contaminated water. Coffee grounds were with KOH and carbonized at 600°C 4 h to produce (CGAC), then modified arginine via hydrothermal treatment 120°C 48 create Arg-CGAC. The adsorbents' chemical physical properties analyzed using SEM, FT-IR, BET, pHpzc methods. Batch experiments revealed that Arg-CGAC exhibited superior Pb2+ adsorption (223.10 mg∙g‒1) compared CGAC (119.23 under optimal conditions. Isotherm analysis showed stronger adsorbate-adsorbent interactions a more endothermic demonstrated both physisorption weak chemisorption, while primarily physisorption. Increasing temperatures made ΔG° values negative, indicating favorable Desorption tests 98% yield over four cycles, but efficiency declined after 7th cycle, stabilizing 55% 60%, suggesting good initial performance despite some regeneration limitations.

Language: Английский

Citations

0
Study on hydration and Pb2+ adsorption of cement-spent coffee ground biochar composite cementitious material DOI
Tao Qing, Qianmin Ma, Rongxin Guo

et al.

Case Studies in Construction Materials, Journal Year: 2025, Volume and Issue: 22, P. e04598 - e04598

Published: April 1, 2025

Language: Английский

Citations

0
Hybrid Materials—Mg3Al-LDH/Ionic Liquids/Chitosan Used in the Recovery Process of Pd Ions from Aqueous Solutions DOI Creative Commons

Emilia Milos,

Laura Cocheci,

Adriana Popa

et al.

Molecules, Journal Year: 2024, Volume and Issue: 29(24), P. 6001 - 6001

Published: Dec. 19, 2024

The recovery of palladium from aqueous solutions is important due to its critical role in various industrial applications and the growing demand for sustainable resource management. This study investigates potential hybrid materials composed Mg3Al layered double hydroxides (LDHs), chitosan, ionic liquids (methyl trialchil ammonium chloride) efficient adsorption ions low-concentration solutions. Comprehensive characterization techniques, including X-ray diffraction (RX), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive (EDX), thermogravimetric analysis (TG), were employed elucidate structural compositional properties materials. results batch experiments demonstrate that each component contributes synergistically process, significantly enhancing overall efficacy recovery. Furthermore, method preparing adsorbent material was found impact effectiveness Among tested, chitosan/Mg3Al/IL exhibited highest capacity (qmax = 98 mg/g), suggesting liquid functionalization most beneficial when applied during synthesis, rather than LDH synthesis process. research underscores viability as a approach recovery, contributing advancements environmental remediation technologies.

Language: Английский

Citations

0