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Phetladda Pannak. Preparation of layered compound nanocomposites ; ZnO-MnO2, ZnO-MoS2, ZnO-MMT, Au-MoS2, Ag-MoS2 and AuAg-MoS2. Doctoral Degraee(Chemistry). Kasetsart University. Office of the University Library. : Kasetsart University, 2018.
Preparation of layered compound nanocomposites ; ZnO-MnO2, ZnO-MoS2, ZnO-MMT, Au-MoS2, Ag-MoS2 and AuAg-MoS2
Name: Phetladda Pannak
Classification :.LCCS: QD921 .P44
LCSH:
Layer structure (Solids)
LCSH:
Nanoparticles
LCSH:
Zinc oxide
Abstract:
ZnO nanoparticles intercalated in different 2D compounds; MnO2, MoS2 and montmorillonite (ZnO-MnO2, ZnO-MoS2 and ZnO-MMT respectively) were prepared via exfoliation-flocculation or ion exchange process, followed by thermal treatment. It was found that the structure of the obtained composites was arranged in the house-ofcards structure with the homogeneous distribution of ZnO nanoparticles in all layered compounds, according to the XRD, SEM-EDX, HRTEM and XAS analyses. The particle size of ZnO nanoparticles defined by HRTEM in all composites was less than 5 nm. In addition, XAS results suggested the presence of short-range structural order in wurtzite ZnO crystalline. Among three composites, ZnO-MMT exhibited the highest photocatalytic efficiency over Rhodamine B solution. This photocatalytic enhancement was attributed to strong synergistic interaction of ZnO nanoparticles that were homogeneously embedded in the composite. However, the photocatalytic activity of ZnO-MnO2 and ZnO-MoS2 was still significantly low due to their improper band positions for photodegradation reaction. In addition, gold nanoparticles encapsulated by MoS2 (Au@MoS2) was successfully synthesized by a hydrothermal method. Whereas silver nanoparticles and gold-silver nanoshells could not be wrapped by MoS2 nanosheets because of their instability, resulting in strong aggregation products. On the other hand, gold seeds decorated on MoS2 (MoS2@Au) were also prepared via a seed-mediated growth method. The obtained Au@MoS2 and MoS2@Au would be investigated in their efficiency for H2 production in the future.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Apisit Songsasen
Role:
Thesis Advisor
Name: Weekit Sirisaksoontorn
Role:
Thesis CO-Advisor
Created:
2018
Modified:
2025-07-03
Issued:
2025-07-03
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2561/phetladda-pan-all.pdf
CallNumber:
QD921 .P44
eng
DegreeName: Doctor of Philosophy
Level: Doctoral Degraee
Descipline: Chemistry
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
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0.021171 วินาที
Phetladda Pannak
| Title | Contributor | Type |
|---|---|---|
| Degradation of acid orange 7 and methylene bule by co-doped TiO2 photocatalysts prepared by sol-gel and sonication methods
มหาวิทยาลัยเกษตรศาสตร์ Phetladda Pannak | Apisit Songsasen | วิทยานิพนธ์/Thesis |
| Preparation of layered compound nanocomposites ; ZnO-MnO2, ZnO-MoS2, ZnO-MMT, Au-MoS2, Ag-MoS2 and AuAg-MoS2
มหาวิทยาลัยเกษตรศาสตร์ Phetladda Pannak | Apisit Songsasen | วิทยานิพนธ์/Thesis |
Apisit Songsasen
Weekit Sirisaksoontorn
| Title | Creator | Type and Date Create |
|---|---|---|
| Two-Dimensional (2D) materials based membranes for the application of water purification
มหาวิทยาลัยเกษตรศาสตร์ Weekit Sirisaksoontorn | Poonsawat Paechotrattanakul | วิทยานิพนธ์/Thesis |