Formation of ZnS and CdS in the interlayer spaces of montmorillonite

Nithima Khaorapapong; Areeporn Ontam; Makoto Ogawa

doi:10.1016/j.clay.2010.06.013

Formation of ZnS and CdS in the interlayer spaces of montmorillonite

Nithima Khaorapapong^*, Areeporn Ontam, Makoto Ogawa

^*Corresponding author for this work

Waseda University

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

46 Citations (Scopus)

Abstract

Two types of semiconductor particles, ZnS and CdS, were formed in the interlayer spaces of montmorillonite by solid-solid reactions between Zn(II)- or Cd(II)-montmorillonite and Na₂S at ambient temperature. The formation of the intercalation compounds was confirmed by powder XRD, TG-DTA and TG-MS. The in situ formation of ZnS and CdS nanoparticles in the interlayer spaces of montmorillonite was proved by UV-visible and photoluminescence spectroscopy. The diffuse reflectance absorption spectra of ZnS and CdS-montmorillonites exhibited the absorption onset at 345 and 541nm, confirming the formation of ZnS and CdS nanoparticles in the interlayer spaces. The ZnS or CdS luminescence band at 583nm for ZnS-montmorillonite or 529nm for CdS-montmorillonite was weak due to the presence of quenching impurities in montmorillonite.

Original language	English
Pages (from-to)	19-24
Number of pages	6
Journal	Applied Clay Science
Volume	50
Issue number	1
DOIs	https://doi.org/10.1016/j.clay.2010.06.013
Publication status	Published - 2010 Sept

Keywords

Cadmium sulfide
Intercalation
Montmorillonite
Solid-solid reaction
Zinc sulfide

ASJC Scopus subject areas

Geochemistry and Petrology
Geology

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10.1016/j.clay.2010.06.013

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title = "Formation of ZnS and CdS in the interlayer spaces of montmorillonite",

abstract = "Two types of semiconductor particles, ZnS and CdS, were formed in the interlayer spaces of montmorillonite by solid-solid reactions between Zn(II)- or Cd(II)-montmorillonite and Na2S at ambient temperature. The formation of the intercalation compounds was confirmed by powder XRD, TG-DTA and TG-MS. The in situ formation of ZnS and CdS nanoparticles in the interlayer spaces of montmorillonite was proved by UV-visible and photoluminescence spectroscopy. The diffuse reflectance absorption spectra of ZnS and CdS-montmorillonites exhibited the absorption onset at 345 and 541nm, confirming the formation of ZnS and CdS nanoparticles in the interlayer spaces. The ZnS or CdS luminescence band at 583nm for ZnS-montmorillonite or 529nm for CdS-montmorillonite was weak due to the presence of quenching impurities in montmorillonite.",

keywords = "Cadmium sulfide, Intercalation, Montmorillonite, Solid-solid reaction, Zinc sulfide",

author = "Nithima Khaorapapong and Areeporn Ontam and Makoto Ogawa",

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doi = "10.1016/j.clay.2010.06.013",

language = "English",

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TY - JOUR

T1 - Formation of ZnS and CdS in the interlayer spaces of montmorillonite

AU - Khaorapapong, Nithima

AU - Ontam, Areeporn

AU - Ogawa, Makoto

PY - 2010/9

Y1 - 2010/9

N2 - Two types of semiconductor particles, ZnS and CdS, were formed in the interlayer spaces of montmorillonite by solid-solid reactions between Zn(II)- or Cd(II)-montmorillonite and Na2S at ambient temperature. The formation of the intercalation compounds was confirmed by powder XRD, TG-DTA and TG-MS. The in situ formation of ZnS and CdS nanoparticles in the interlayer spaces of montmorillonite was proved by UV-visible and photoluminescence spectroscopy. The diffuse reflectance absorption spectra of ZnS and CdS-montmorillonites exhibited the absorption onset at 345 and 541nm, confirming the formation of ZnS and CdS nanoparticles in the interlayer spaces. The ZnS or CdS luminescence band at 583nm for ZnS-montmorillonite or 529nm for CdS-montmorillonite was weak due to the presence of quenching impurities in montmorillonite.

AB - Two types of semiconductor particles, ZnS and CdS, were formed in the interlayer spaces of montmorillonite by solid-solid reactions between Zn(II)- or Cd(II)-montmorillonite and Na2S at ambient temperature. The formation of the intercalation compounds was confirmed by powder XRD, TG-DTA and TG-MS. The in situ formation of ZnS and CdS nanoparticles in the interlayer spaces of montmorillonite was proved by UV-visible and photoluminescence spectroscopy. The diffuse reflectance absorption spectra of ZnS and CdS-montmorillonites exhibited the absorption onset at 345 and 541nm, confirming the formation of ZnS and CdS nanoparticles in the interlayer spaces. The ZnS or CdS luminescence band at 583nm for ZnS-montmorillonite or 529nm for CdS-montmorillonite was weak due to the presence of quenching impurities in montmorillonite.

KW - Cadmium sulfide

KW - Intercalation

KW - Montmorillonite

KW - Solid-solid reaction

KW - Zinc sulfide

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DO - 10.1016/j.clay.2010.06.013

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JO - Applied Clay Science

JF - Applied Clay Science

IS - 1

ER -

Formation of ZnS and CdS in the interlayer spaces of montmorillonite

Abstract

Keywords

ASJC Scopus subject areas

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