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Publication
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| Research Title |
CdS-MnSHeteronanoparticlesin Montmorillonite Prepared by Solid-Solid Reaction |
| Date of Distribution |
8 January 2010 |
| Conference |
| Title of the Conference |
Pure and Applied Chemistry International Conference (PACCON2013) |
| Organiser |
Department of Chemistry, Faculty of Science, Khon Kaen University |
| Conference Place |
Khon Kaen University |
| Province/State |
Khon Kaen |
| Conference Date |
8 January 2010 |
| To |
10 January 2010 |
| Proceeding Paper |
| Volume |
3 |
| Issue |
3 |
| Page |
231 |
| Editors/edition/publisher |
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| Abstract |
Hybridization of organic and inorganic species with layered inorganic solids such as montmorillonite is an interesting topic for constructing ordered organic-inorganic or inorganic-inorganic materials with unique microstructures and properties. Cadmium sulfide(CdS) and magnesium sulfide (MnS) are important semiconductors due to their properties that made them potential for various applications including catalysts and optical materials. Progresses have been made in the preparation of particles with smaller size and narrower size distribution to tailor their optical properties precisely. Herein, solid-solid reaction was carried out to preparemixedCdS-MnS nanoparticles in montmorillonite that may leadtheunique optical properties.
Cd(II)-Mn(II) exchanged montmorillonite was prepared by adding the aqueous solutions of CdCl2as well as MnCl2∙4H2O (Cd(II) or Mn(II) = 60 meq/100 g clay) into a dispersion of sodium-montmorillonite. Subsequently, the mixture was stirred overnight. The resulting solid (Cd(II)-Mn(II)-montmorillonite) was manually ground with Na2S∙xH2O in an agate mortar and a pestle for 10-15 minutes and heated at 200°C for 1 hour in air atmosphere. The productwas characterized by powder XRD, TEM, Raman, UV-Vis and photoluminescence spectroscopies.
The XRD pattern of the hybrid showed the expansion of the interlayer spaceby0.50 nm, indicating the intercalation of CdS and MnS in montmorillonite. Raman spectrum of the hybrid showed two broad bands at 304 and 605 cm-1 corresponding to the first-order (1LO) and second-order (2LO) Raman band of CdS, as well as theband at 511 cm-1 owing to vibrational modes of MnS, supporting the in-situ formation of mixedCdS and MnS in montmorillonite. The TEM image revealedthe disk shapedCdS and MnSin between the silicate layers.In comparison with the emission spectra of free CdS and MnS nanoparticles, the increaseof photoluminescence intensities was thought to be caused by the confinement effect.
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
ชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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