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

doi:10.1016/j.clay.2016.02.026

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

Division of Process and System Engineering

Research output: Contribution to journal › Article › peer-review

30 Citations (Scopus)

Abstract

A pure phase of Ca-Al-X (X = CO₃^2- 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 language	English
Pages (from-to)	267-270
Number of pages	4
Journal	Applied Clay Science
Volume	124-125
DOIs	https://doi.org/10.1016/j.clay.2016.02.026
Publication status	Published - 2016 May 1

Keywords

Aluminum hydroxide
Calcium hydroxide
Katoite
Layered double hydroxide
Mechanochemical

ASJC Scopus subject areas

Geology
Geochemistry and Petrology

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10.1016/j.clay.2016.02.026

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

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.",

keywords = "Aluminum hydroxide, Calcium hydroxide, Katoite, Layered double hydroxide, Mechanochemical",

author = "Jun Qu and Lihua Zhong and Zhao Li and Min Chen and Kibu Chiyo and Xinzhong Liu",

year = "2016",

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doi = "10.1016/j.clay.2016.02.026",

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journal = "Applied Clay Science",

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TY - JOUR

T1 - Effect of anion addition on the syntheses of Ca-Al layered double hydroxide via a two-step mechanochemical process

AU - Qu, Jun

AU - Zhong, Lihua

AU - Li, Zhao

AU - Chen, Min

AU - Chiyo, Kibu

AU - Liu, Xinzhong

PY - 2016/5/1

Y1 - 2016/5/1

N2 - 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.

AB - 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.

KW - Aluminum hydroxide

KW - Calcium hydroxide

KW - Katoite

KW - Layered double hydroxide

KW - Mechanochemical

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DO - 10.1016/j.clay.2016.02.026

M3 - Article

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SN - 0169-1317

VL - 124-125

SP - 267

EP - 270

JO - Applied Clay Science

JF - Applied Clay Science

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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