Highly selective and efficient Pb capture using PO-loaded 3D-NiFe layer double hydroxides derived from MIL-88A.

Lead (Pb) contamination in water requires improved decontamination technologies. The addition of phosphate to precipitate Pb is a widely used method for remediating Pb in soil and water, though it has certain limitations. This study focuses on novel 3D mesoporous layered double hydroxide (LDH) sorbents functionalized with phosphate anions for Pb removal from contaminated waters.

In-depth characterization of phosphate intercalated Mg Al Layered double hydroxides and study of the PO release properties.

Slow-release fertilizers (SRFs) form the core of innovative strategies in sustainable agriculture. Layered Double Hydroxides (LDH), known for their high capacity to sequester plant nutrients, especially phosphate, are emerging as promising candidates for SRF synthesis. The phosphate release properties of MgAl LDH (with a targeted Mg/Al ratio of 2.

Enhanced photocatalytic activity of hydrozincite-TiO nanocomposite by copper for removal of pharmaceutical pollutant mefenamic acid in aqueous solution.

Nanocomposites based on hydrozincite-TiO and copper-doped HZ-xCu-TiO (x = 0.1; 0.25; 0.

Potential Sustainable Slow-Release Fertilizers Obtained by Mechanochemical Activation of MgAl and MgFe Layered Double Hydroxides and K₂HPO₄.

This study describes the behavior of potential slow-release fertilizers (SRF), prepared by the mechanochemical activation of calcined Mg₂Al-CO₃ or Mg₂Fe-CO₃ layered double hydroxides (LDH) mixed with dipotassium hydrogen phosphate (K₂HPO₄). The effects of LDH thermal treatment on P/K release behavior were investigated. Characterizations of the inorganic composites before and after release experiments combined X-Ray diffraction (XRD), Fourier-transform infra-red spectroscopy (FTIR), solid-state nuclear magnetic resonance (NMR), scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX).

The distribution of reactive Ni in 2D MgNiAl-LDH nanohybrid materials determined by solid state Al MAS NMR spectroscopy.

Layered double hydroxides (LDHs), especially (doped) with transition metals, as well as nanohybrid and 2D materials derived from these structures, are interesting materials due to their catalytic and electrochemical properties. Their reactivity is determined by the atomic level distribution of the transition metal in the LDH cation layer, which is essential to control the design of LDHs with optimized properties. However, low crystallinity, absence of long range order, and/or isoelectronic ions often prevent atomic level structural characterization.