Ultrasound-enhanced milling in the synthesis of phase-pure, highly crystalline ZnAl-layered double hydroxide of low Zn(II) content

M. Szabados, Cs Bús, M. Ádok-Sipiczki, Z. Kónya, Kukovecz, P. Sipos, I. Pálinkó

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Dry milling followed by ultrasonic irradiation in the presence of small amounts of aqueous NaOH, was used to synthesise ZnAl-layered double hydroxide (LDH). The synthetic conditions were optimised and the Zn(OH)2, ZnO, and Al(OH)3 contaminants were removed by rinsing with aqueous NH3 solution from the sample prepared in the optimum conditions. Thus, phase-pure ZnAl-layered double hydroxide was obtained with high crystallinity. All materials produced during the syntheses were characterised by X-ray diffractometry, and a rose-like morphology was observed by scanning electron microscopy in the phase-pure sample. By changing the initial Zn/Al ratio, it was revealed that an LDH with low zinc content was always formed, probably through substitution of some of the Zn2+ ions by Al3+ ions in the gibbsite lattice.

Original languageEnglish
Pages (from-to)29-33
Number of pages5
JournalParticuology
Volume27
DOIs
Publication statusPublished - Aug 1 2016

Fingerprint

hydroxides
Ultrasonics
Crystalline materials
Ions
synthesis
X ray diffraction analysis
Zinc
Substitution reactions
Irradiation
Impurities
Scanning electron microscopy
contaminants
crystallinity
ions
zinc
ultrasonics
substitutes
aqueous solutions
scanning electron microscopy
irradiation

Keywords

  • Dry milling
  • Ultrasonic irradiation
  • ZnAl-layered double hydroxide

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

Cite this

Ultrasound-enhanced milling in the synthesis of phase-pure, highly crystalline ZnAl-layered double hydroxide of low Zn(II) content. / Szabados, M.; Bús, Cs; Ádok-Sipiczki, M.; Kónya, Z.; Kukovecz, ; Sipos, P.; Pálinkó, I.

In: Particuology, Vol. 27, 01.08.2016, p. 29-33.

Research output: Contribution to journalArticle

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