Complete desorption of interlayer hydrogen phosphate in Mg/Al-layered double hydroxides by means of anion exchange with 1-octanesulfonate
Source abstract
Abstract
Hydrogen phosphate intercalated Mg/Al-layered double hydroxides (LDH-HPO4) were synthesized by a homogeneous precipitation method with urea and anion exchange. The intercalated hydrogen phosphate was removed by anion exchange with Na2CO3, NaOH–NaCl, and 1-octanesulfonate solutions. The phosphate removal behavior was characterized by X-ray diffraction (XRD), Fourier Transform-InfraRed (FT-IR) spectroscopy, and elemental analysis. Complete removal of interlayer hydrogen phosphate from LDH-HPO4 was realized using 1-octanesulfonate solution. Two reasons are proposed to explain complete hydrogen phosphate removal from the interlayer space of LDH-HPO4. Complete desorption and cyclability suggest this is a viable technique to use as an efficient adsorption/desorption system in industrial applications.
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Research context
OpenAlex topics: Layered Double Hydroxides Synthesis and Applications · Phosphorus and nutrient management · Nanomaterials for catalytic reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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