Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique
In this study, the preparation of immobilized 4-(2-pyridylazo)resorcinol (PAR) in chitosan-graphene oxide composite has been described using spin coating technique. The optical properties of the composite thin film was characterized using UV–Vis-NIR absorption spectroscopy and its optical band gap w...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/14205/ http://psasir.upm.edu.my/id/eprint/14205/1/Optical%20and%20structural%20characterization%20of%20immobilized%204-%282-pyridylazo%29resorcinol%20in%20chitosan-graphene%20oxide%20composite%20thin%20film%20and%20its%20potential%20for%20Co2%2B%20sensing%20using%20surface%20plasmon%20resonance%20technique.pdf |
| _version_ | 1848842329136300032 |
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| author | Saleviter, Silvan Yap, Wing Fen Sheh Omar, Nur Alia Zainudin, Afiq Azri Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim |
| author_facet | Saleviter, Silvan Yap, Wing Fen Sheh Omar, Nur Alia Zainudin, Afiq Azri Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim |
| author_sort | Saleviter, Silvan |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In this study, the preparation of immobilized 4-(2-pyridylazo)resorcinol (PAR) in chitosan-graphene oxide composite has been described using spin coating technique. The optical properties of the composite thin film was characterized using UV–Vis-NIR absorption spectroscopy and its optical band gap was obtained. The characterization of the composite thin film was confirmed by the Fourier transform infrared spectrum obtained and the surface morphology of the composite thin film was observed using field emission scanning electron microscope (FESEM). Lastly, the experimental SPR curves were obtained for different concentration of Co2+ metal ion solution to study the potential of the composite for metal sensing. The sensor produces a linear response for higher concentration of Co2+ with a sensitivity of 0.00069° ppm−1. These results indicate that the composite thin film shows potential for the detection of Co2+ using surface plasmon resonance technique. |
| first_indexed | 2025-11-15T07:57:24Z |
| format | Article |
| id | upm-14205 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T07:57:24Z |
| publishDate | 2018 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-142052018-10-08T02:43:41Z http://psasir.upm.edu.my/id/eprint/14205/ Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique Saleviter, Silvan Yap, Wing Fen Sheh Omar, Nur Alia Zainudin, Afiq Azri Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim In this study, the preparation of immobilized 4-(2-pyridylazo)resorcinol (PAR) in chitosan-graphene oxide composite has been described using spin coating technique. The optical properties of the composite thin film was characterized using UV–Vis-NIR absorption spectroscopy and its optical band gap was obtained. The characterization of the composite thin film was confirmed by the Fourier transform infrared spectrum obtained and the surface morphology of the composite thin film was observed using field emission scanning electron microscope (FESEM). Lastly, the experimental SPR curves were obtained for different concentration of Co2+ metal ion solution to study the potential of the composite for metal sensing. The sensor produces a linear response for higher concentration of Co2+ with a sensitivity of 0.00069° ppm−1. These results indicate that the composite thin film shows potential for the detection of Co2+ using surface plasmon resonance technique. Elsevier 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/14205/1/Optical%20and%20structural%20characterization%20of%20immobilized%204-%282-pyridylazo%29resorcinol%20in%20chitosan-graphene%20oxide%20composite%20thin%20film%20and%20its%20potential%20for%20Co2%2B%20sensing%20using%20surface%20plasmon%20resonance%20technique.pdf Saleviter, Silvan and Yap, Wing Fen and Sheh Omar, Nur Alia and Zainudin, Afiq Azri and Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim (2018) Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique. Results in Physics, 11. pp. 118-122. ISSN 2211-3797 https://www.sciencedirect.com/science/article/pii/S2211379717319113#! 10.1016/j.rinp.2018.08.040 |
| spellingShingle | Saleviter, Silvan Yap, Wing Fen Sheh Omar, Nur Alia Zainudin, Afiq Azri Mohd Daniyal, Wan Mohd Ebtisyam Mustaqim Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title | Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title_full | Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title_fullStr | Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title_full_unstemmed | Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title_short | Optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for Co2+ sensing using surface plasmon resonance technique |
| title_sort | optical and structural characterization of immobilized 4-(2-pyridylazo)resorcinol in chitosan-graphene oxide composite thin film and its potential for co2+ sensing using surface plasmon resonance technique |
| url | http://psasir.upm.edu.my/id/eprint/14205/ http://psasir.upm.edu.my/id/eprint/14205/ http://psasir.upm.edu.my/id/eprint/14205/ http://psasir.upm.edu.my/id/eprint/14205/1/Optical%20and%20structural%20characterization%20of%20immobilized%204-%282-pyridylazo%29resorcinol%20in%20chitosan-graphene%20oxide%20composite%20thin%20film%20and%20its%20potential%20for%20Co2%2B%20sensing%20using%20surface%20plasmon%20resonance%20technique.pdf |