Effect of anion addition on the syntheses of Ca-Al layered double hydroxide via a two-step mechanochemical process

Jun Qu, Lihua Zhong, Zhao Li, Min Chen, Kibu Chiyo, Xinzhong Liu

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A pure phase of Ca-Al-X (X = CO32- or Cl-) layered double hydroxide (LDH) was synthesized via a two-step solvent-free mechanochemical process. Milling Ca and Al hydroxides only gave katoite as the main phase in the product. Further addition of carbonate or chloride during milling operation allowed easy formation of Ca-Al-X LDH. The as-prepared samples were characterized by X-ray diffractometry (XRD),Fourier transform infrared spectroscopy (FT-IR), thermogravimetry (TG), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The characterization results confirmed the formation of highly crystalline Ca-Al LDH phase. The idea to add a third phase to help stabilize desired compound as LDH in this work may be of help for the synthesis of other substance in general.

Original languageEnglish
Pages (from-to)267-270
Number of pages4
JournalApplied Clay Science
Volume124-125
DOIs
Publication statusPublished - 2016 May 1

Keywords

  • Aluminum hydroxide
  • Calcium hydroxide
  • Katoite
  • Layered double hydroxide
  • Mechanochemical

ASJC Scopus subject areas

  • Geology
  • Geochemistry and Petrology

Fingerprint Dive into the research topics of 'Effect of anion addition on the syntheses of Ca-Al layered double hydroxide via a two-step mechanochemical process'. Together they form a unique fingerprint.

  • Cite this