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Janjira Praneerad. Carbon dots from radish via hydrothermal treatment and their sensing applications. Master's Degree(Chemistry). Thammasat University. Thammasat University Library. : Thammasat University, 2019.
Carbon dots from radish via hydrothermal treatment and their sensing applications
Name: Janjira Praneerad
keyword:
Carbon dot
;
Radish
Abstract:
Carbon dots are carbon-based nanomaterials with fascinating optical and electronic properties, and have a great potential to replace organic dyes and fluorescent semiconductor nanocrystals. The unmodified carbon dots exhibit excellent superior photochemical stability, biocompatibility, low toxicity, and simple synthesis. In this work, we developed a one-step hydrothermal method to produce the fluorescent and water-soluble carbon dots from radish. The carbon dots were used as fluorescent sensor for sensing of metal ions and acetic acid vapor. The results showed that Cu2+ ions could selectively quench the fluorescence intensity of carbon dots with a limit of detection of 0.16 µM, and paper-based sensor for highly sensitive and selective detection of Cu2+ ions was also demonstrated and shown to sense Cu2+ with a limit of detection of 6.8 µM. Spiking of determined Cu2+ concentration in real water samples, including tap water and several drinking waters was investigated and also shown an excellent recovery and reliability of carbon dots. Furthermore, the carbon dots were applied as sensing materials using an optical electronic nose system for detecting an acetic acid vapor and a real vinegar sample. Different ratios of acetic acid to methanol solution were also analyzed with a limit of detection of 15.5%. The biocompatibility of carbon dots also was investigated using MTT assay. This thesis work demonstrated that biocompatible carbon dots derived from readily available radish are intriguing sensing materials for various chemicals
Thammasat University. Thammasat University Library
Address:
BANGKOK
Email:
preserv@tu.ac.th
Name: Peerasak Paoprasert
Role:
advisor
Created:
2019
Modified:
2022-09-16
Issued:
2022-09-16
วิทยานิพนธ์/Thesis
application/pdf
eng
DegreeName: Master of Science
Level: Master's Degree
Descipline: Chemistry
Grantor: Thammasat University
©copyrights Thammasat University
RightsAccess:
ใช้เวลา
0.0306 วินาที
Janjira Praneerad
| Title | Contributor | Type |
|---|---|---|
| Carbon dots from radish via hydrothermal treatment and their sensing applications
มหาวิทยาลัยธรรมศาสตร์ Janjira Praneerad | Peerasak Paoprasert | วิทยานิพนธ์/Thesis |
Peerasak Paoprasert