Mohd Sidek, Farah Juwairiyah Atiqah (2022) Characterization of poly(3,4-ethylenedioxythiophene)-sodium carboxymethyl cellulose thin film and potential sensing of hydroquinone using surface plasmon resonance spectroscopy. [Project Paper] (Submitted)
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Abstract
Conducting polymer composites are promising materials for a green technological future and are actively being investigated in a variety of applications, including biosensing. In this study, poly(3,4-ethylenedioxythiophene)-sodium carboxymethyl cellulose (PEDOT-NaCMC) composites thin film has been used and the preparation of the composites has been described. The PEDOT-NaCMC thin film was characterized by using Fourier transform infrared spectroscopy which confirms the presence of functional group of the composites. The UV- Visible spectrometer was used to study the optical properties of the PEDOT-NaCMC thin film where the absorbance peaks can be found between 270 nm to 300 nm with the optical band gap 4.10 eV. Next, the incorporation of the PEDOT-NaCMC thin film with optical based sensor which is surface plasmon resonance displayed a positive result towards the various concentration of hydroquinone (HQ) solution where it can be found that the system can detect the HQ as low as 2 nM with the sensitivity of 0.0251° nM-1 Further characterization on surface morphology and surface roughness of the thin film using atomic force microscopy confirmed the interaction of HQ with the thin film. Thus, the PEDOT-NaCMC thin film has the potential to detect HQ, implying that PEDOT-NaCMC can be used as promising candidates for sensing applications.
| Item Type: | Project Paper |
|---|---|
| Faculty: | Fakulti Sains |
| Depositing User: | Ms. ROHANA ALIAS |
| Date Deposited: | 18 Dec 2024 08:14 |
| Last Modified: | 18 Dec 2024 08:14 |
| URI: | http://psaspb.upm.edu.my/id/eprint/1991 |
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