Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption
One-dimensional calcium oxide (CaO-) based titanium dioxide (TiO2) nanotubes were successfully synthesized through a rapid electrochemical anodization and chemical wet impregnation techniques. In this study, calcium nitrate solution was used as a calcium source precursor. The reaction time and conce...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/471713 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850179006107746304 |
|---|---|
| author | Chin Wei Lai |
| author_facet | Chin Wei Lai |
| author_sort | Chin Wei Lai |
| collection | DOAJ |
| description | One-dimensional calcium oxide (CaO-) based titanium dioxide (TiO2) nanotubes were successfully synthesized through a rapid electrochemical anodization and chemical wet impregnation techniques. In this study, calcium nitrate solution was used as a calcium source precursor. The reaction time and concentration of calcium source on the formation of CaO-TiO2 nanotubes were investigated using field emission microscopy, energy dispersion X-ray spectroscopy, and X-ray diffraction. The adsorption capacity of CO2 was determined by thermal gravimetric analyzer. A maximum of 4.45 mmol/g was achieved from the CaO-TiO2 nanotubes (6.64 at% of Ca). The finding was attributed to the higher active surface area for CaO to adsorb more CO2 gas and then formed CaCO3 compound during cyclic carbonation-calcination reaction. |
| format | Article |
| id | doaj-art-bea55557e87e47ae8d2354e1818be460 |
| institution | OA Journals |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-bea55557e87e47ae8d2354e1818be4602025-08-20T02:18:35ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/471713471713Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 AdsorptionChin Wei Lai0Nanotechnology & Catalysis Research Centre (NANOCAT), Institute of Postgraduate Studies (IPS), Universiti Malaya, 3rd Floor, Block A, 50603 Kuala Lumpur, MalaysiaOne-dimensional calcium oxide (CaO-) based titanium dioxide (TiO2) nanotubes were successfully synthesized through a rapid electrochemical anodization and chemical wet impregnation techniques. In this study, calcium nitrate solution was used as a calcium source precursor. The reaction time and concentration of calcium source on the formation of CaO-TiO2 nanotubes were investigated using field emission microscopy, energy dispersion X-ray spectroscopy, and X-ray diffraction. The adsorption capacity of CO2 was determined by thermal gravimetric analyzer. A maximum of 4.45 mmol/g was achieved from the CaO-TiO2 nanotubes (6.64 at% of Ca). The finding was attributed to the higher active surface area for CaO to adsorb more CO2 gas and then formed CaCO3 compound during cyclic carbonation-calcination reaction.http://dx.doi.org/10.1155/2014/471713 |
| spellingShingle | Chin Wei Lai Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption International Journal of Photoenergy |
| title | Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption |
| title_full | Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption |
| title_fullStr | Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption |
| title_full_unstemmed | Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption |
| title_short | Modification of One-Dimensional TiO2 Nanotubes with CaO Dopants for High CO2 Adsorption |
| title_sort | modification of one dimensional tio2 nanotubes with cao dopants for high co2 adsorption |
| url | http://dx.doi.org/10.1155/2014/471713 |
| work_keys_str_mv | AT chinweilai modificationofonedimensionaltio2nanotubeswithcaodopantsforhighco2adsorption |