Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using Liquid Nitrogen
This paper presents the effects of the different annealing treatments and quenching conditions on the characteristics of titanium dioxide nanotubes (TNTs), which were synthesised successfully via two-step anodization. The X-ray diffraction (XRD) showed that TNTs annealed and quenched using liquid n...
| Main Authors: | , , , |
|---|---|
| Format: | Conference or Workshop Item |
| Language: | English |
| Published: |
2020
|
| Subjects: | |
| Online Access: | http://eprints.usm.my/49071/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2066.pdf |
| _version_ | 1797012127086542848 |
|---|---|
| author | Kai, Ti Low Fong, Kwong Yam Khi, Poay Beh Hwee, San Lim |
| author_facet | Kai, Ti Low Fong, Kwong Yam Khi, Poay Beh Hwee, San Lim |
| author_sort | Kai, Ti Low |
| collection | USM |
| description | This paper presents the effects of the different annealing treatments and quenching conditions on the characteristics of titanium dioxide nanotubes (TNTs), which were synthesised successfully via two-step anodization. The X-ray diffraction (XRD) showed
that TNTs annealed and quenched using liquid nitrogen (N2) exhibited significant dissimilarities in the phase transition and plane dominance, as compared to that of air quenched. It also revealed that the liquid N2 quenching was capable of suppressing the phase
transition of anatase into rutile. Apart from that, the elemental analysis showed that liquid N2 quenching led to Leidenfrost effect, which had affected the Ti:O ratio of the TNTs significantly. Morphologically, the use of controllable water vapour/N2 was found to be able
to preserve the nanotubular structures, even at the high annealing temperature of 850 °C. From the optical aspect, the bandgap energy of all samples were found to decrease when the annealing temperatures increased, regardless of the annealing and quenching conditions. Particularly, the crystal structure of TNTs was found to exert greater effect on their bandgap energy, as compared to that of crystallite size when the annealing temperatures were varied between 650 °C and 850 °C. |
| first_indexed | 2024-03-06T15:43:40Z |
| format | Conference or Workshop Item |
| id | usm.eprints-49071 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2024-03-06T15:43:40Z |
| publishDate | 2020 |
| record_format | dspace |
| spelling | usm.eprints-490712021-04-30T03:33:25Z http://eprints.usm.my/49071/ Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using Liquid Nitrogen Kai, Ti Low Fong, Kwong Yam Khi, Poay Beh Hwee, San Lim QC1-999 Physics This paper presents the effects of the different annealing treatments and quenching conditions on the characteristics of titanium dioxide nanotubes (TNTs), which were synthesised successfully via two-step anodization. The X-ray diffraction (XRD) showed that TNTs annealed and quenched using liquid nitrogen (N2) exhibited significant dissimilarities in the phase transition and plane dominance, as compared to that of air quenched. It also revealed that the liquid N2 quenching was capable of suppressing the phase transition of anatase into rutile. Apart from that, the elemental analysis showed that liquid N2 quenching led to Leidenfrost effect, which had affected the Ti:O ratio of the TNTs significantly. Morphologically, the use of controllable water vapour/N2 was found to be able to preserve the nanotubular structures, even at the high annealing temperature of 850 °C. From the optical aspect, the bandgap energy of all samples were found to decrease when the annealing temperatures increased, regardless of the annealing and quenching conditions. Particularly, the crystal structure of TNTs was found to exert greater effect on their bandgap energy, as compared to that of crystallite size when the annealing temperatures were varied between 650 °C and 850 °C. 2020-12-02 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.usm.my/49071/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2066.pdf Kai, Ti Low and Fong, Kwong Yam and Khi, Poay Beh and Hwee, San Lim (2020) Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using Liquid Nitrogen. In: 5th Meeting of Malaysia Nitrides Research Group (MNRG 2020), 1-2 December 2020. |
| spellingShingle | QC1-999 Physics Kai, Ti Low Fong, Kwong Yam Khi, Poay Beh Hwee, San Lim Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using Liquid Nitrogen |
| title | Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using
Liquid Nitrogen |
| title_full | Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using
Liquid Nitrogen |
| title_fullStr | Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using
Liquid Nitrogen |
| title_full_unstemmed | Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using
Liquid Nitrogen |
| title_short | Characteristics Of Titanium Dioxide Nanotubes Annealed Under Various Conditions And Quenched Using
Liquid Nitrogen |
| title_sort | characteristics of titanium dioxide nanotubes annealed under various conditions and quenched using liquid nitrogen |
| topic | QC1-999 Physics |
| url | http://eprints.usm.my/49071/1/ABSTRACT%20BOOK%20MNRG%202020.pdf%20cut%2066.pdf |
| work_keys_str_mv | AT kaitilow characteristicsoftitaniumdioxidenanotubesannealedundervariousconditionsandquenchedusingliquidnitrogen AT fongkwongyam characteristicsoftitaniumdioxidenanotubesannealedundervariousconditionsandquenchedusingliquidnitrogen AT khipoaybeh characteristicsoftitaniumdioxidenanotubesannealedundervariousconditionsandquenchedusingliquidnitrogen AT hweesanlim characteristicsoftitaniumdioxidenanotubesannealedundervariousconditionsandquenchedusingliquidnitrogen |