Comparison of LDH-Organic/Inorganic Compound Modified Materials as Adsorbents for Heavy Metal Adsorption: Characteristic Structure and Adsorption Mechanism

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2024, Volume and Issue: 19(2), P. 327 - 339

Published: June 23, 2024

This study modified layered double hydroxide (LDH) with organic compounds in hydrochar made from rambutan peels (prepared by hydrothermal method) and polyoxometalate (tipe Keggin K4[ -SiW12O40].nH2O compound prepared sol-gel method). The synthesis of material was conducted through the coprecipitation method. then applied as an adsorbent for Fe²⁺ ions. material's properties were analyzed using XRD (X-ray diffraction), FT-IR (Fourier-transform infrared spectroscopy), BET surface area analysis. physicochemical characteristics material, a combination pure LDH hydrochar/polyoxometalate compounds, will influence adsorption results metal Furthermore, its application kinetic isotherm parameters, which found to follow pseudo-first-order (PFO) Freundlich models. capacities NiAl-LDH, NiAl-LDH/Hc (modified Hc), NiAl-LDH/POM POM) materials 32.789 mg/g, 47.393 90.091 respectively. It can be concluded that process occurs via physisorption, forming multilayer adsorbates at adsorbents active sites. Copyright © 2024 Authors, Published BCREC Publishing Group. is open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0)

Language: Английский

Multi-metallic layered double hydroxides functionalized degradable bone cement: Modulation of degradation, sustained ion release, antimicrobial, and osteogenic properties

Applied Clay Science, Journal Year: 2024, Volume and Issue: 265, P. 107652 - 107652

Published: Dec. 5, 2024

Language: Английский