แจ้งเอกสารไม่ครบถ้วน, ไม่ตรงกับชื่อเรื่อง หรือมีข้อผิดพลาดเกี่ยวกับเอกสาร ติดต่อที่นี่ ==>
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
หากไม่มีอีเมลผู้รับให้กรอก thailis-noc@uni.net.th
Pilantana Wattananurak. Spectroscopic study of uranium oxidation states in zircon before and after thermal enhancement. Master's Degree(Earth Science and Technology). Kasetsart University. Office of the University Library. : Kasetsart University, 2018.
Spectroscopic study of uranium oxidation states in zircon before and after thermal enhancement
Name: Pilantana Wattananurak
Classification :.LCCS: QE391.Z7
LCSH:
Zircon
LCSH:
Uranium Oxidation
Abstract:
Zircon samples from Thailand, Cambodia, Vietnam, and Sri Lanka were changed their colors from light brown, reddish-brown, and green to blue, light blue and nearly colorless after thermal enhancement at 1000 ๐C in reducing condition for 60 minutes. Zircon is a metamict mineral which the structure was destroyed by radioactive elements such as uranium in the structure. As the results, the Raman spectra of zircon samples after thermal enhancement show the Raman shift at a peak position of ν3(SiO4) stretching around 1008 cm-1 to higher wavenumber concerning to the full width at half maximum (FWHM) values calculated by PyMCA software. The UV-Vis spectra of unheated zircon samples show the absorption band around 1100 nm to 1500 nm due to U5+ and the UV-Vis spectra of heated zircon samples show the absorption band around 550 nm to 800 nm due to U4+ . X-ray absorption spectroscopy (XAS) is a powerful technique to analyze structure at the atomic level. This technique was carried out at the Beamline-8 station at the Synchrotron Light Research Institute (SLRI). In this research, the XAS is focused on X-ray Absorption Near Edge Structure (XANES) to verify the oxidation state of uranium in zircon samples. As the results, M4-edge XANES spectra show the different of the oxidation state of uranium in zircon samples between unheated and heated zircon samples. In this study, the results could be compared the crystallinity of zircon samples from various localities and summarized the oxidation state of uranium in zircon samples before and after thermal enhancement.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Somruedee Satitkune
Role:
Thesis Advisor
Name: Sutharat Chotikaprakhan
Role:
Thesis Advisor
Created:
2018
Modified:
2025-07-02
Issued:
2025-07-02
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2561/pilantana-wat-all.pdf
CallNumber:
QE391.Z7 .P54
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Earth Science and Technology
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.030384 วินาที
Pilantana Wattananurak
| Title | Contributor | Type |
|---|---|---|
| Spectroscopic study of uranium oxidation states in zircon before and after thermal enhancement
มหาวิทยาลัยเกษตรศาสตร์ Pilantana Wattananurak | Somruedee Satitkune Sutharat Chotikaprakhan | วิทยานิพนธ์/Thesis |
Somruedee Satitkune
| Title | Creator | Type and Date Create |
|---|---|---|
| Physical and chemical characteristics of Thai ivory samples from Lampang and Surin provinces
มหาวิทยาลัยเกษตรศาสตร์ Somruedee Satitkune ;Unnop Homchan | Chakkrich Boonmee | วิทยานิพนธ์/Thesis |
| Identification of significant absorption characteristics in FTIR spectra on ruby and blue sapphire samples
มหาวิทยาลัยเกษตรศาสตร์ Pornsawat Wathanakul;Somruedee Satitkune | Aumaparn Phlayrahan | วิทยานิพนธ์/Thesis |
| Spectroscopic study of uranium oxidation states in zircon before and after thermal enhancement
มหาวิทยาลัยเกษตรศาสตร์ Somruedee Satitkune;Sutharat Chotikaprakhan | Pilantana Wattananurak | วิทยานิพนธ์/Thesis |
| Color Enhancement of zircon samples from Thailand, Cambodia, and Sri Lanka
มหาวิทยาลัยเกษตรศาสตร์ Somruedee Satitkune | Rattanawalee Chooyoung | วิทยานิพนธ์/Thesis |
Sutharat Chotikaprakhan
| Title | Creator | Type and Date Create |
|---|---|---|
| Spectroscopic study of uranium oxidation states in zircon before and after thermal enhancement
มหาวิทยาลัยเกษตรศาสตร์ Somruedee Satitkune;Sutharat Chotikaprakhan | Pilantana Wattananurak | วิทยานิพนธ์/Thesis |
| Fabrication and characterization of NiWO nanorod films prepared by reactive magnetron co-sputtering with oblique angle deposition
มหาวิทยาลัยเกษตรศาสตร์ Sutharat Chotikaprakhan | Chanthawut Jetjamhong | วิทยานิพนธ์/Thesis |
| Development of real-time fluorescence-based detection and calibration of UV-Vis spectrometer using in CRISPR-Cas12a detection system
มหาวิทยาลัยเกษตรศาสตร์ Sutharat Chotikaprakhan | Chayanit Thairat | วิทยานิพนธ์/Thesis |