Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals
<p>Pure TiO<sub>2</sub> and CeO<sub>2</sub>-doped TiO<sub>2</sub> (3 % CeO<sub>2</sub>-97 %TiO<sub>2</sub>) composite nanocrystals were synthesized via co-precipitation method and characterized using TGA, XRD, FTIR, DR-UV-vis and TEM....
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2013-12-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/2732 |
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| author | Oman ZUAS Nuryatini HAMIM |
| author_facet | Oman ZUAS Nuryatini HAMIM |
| author_sort | Oman ZUAS |
| collection | DOAJ |
| description | <p>Pure TiO<sub>2</sub> and CeO<sub>2</sub>-doped TiO<sub>2</sub> (3 % CeO<sub>2</sub>-97 %TiO<sub>2</sub>) composite nanocrystals were synthesized via co-precipitation method and characterized using TGA, XRD, FTIR, DR-UV-vis and TEM. The XRD data revealed that the phase structure of the synthesized samples was mainly in pure anatase having crystallite size in the range of 7 nm<sub> </sub>–<sub> </sub>11 nm. Spherical shapes with moderate aggregation of the crystal particles were observed under the TEM observation. The presence of the CeO<sub>2</sub> at TiO<sub>2</sub> site has not only affected morphologically but also induced the electronic property of the TiO<sub>2</sub> by lowering the band gap energy from 3.29 eV (<em>E<sub>g</sub></em>-Ti) to 3.15 eV (<em>E</em><sub>g</sub>-CeTi). Performance evaluation of the synthesized samples showed that both samples have a strong adsorption capacity toward Congo red (CR) dye in aqueous solution at room temperature experiment, where the capacity of the CeTi was higher than the Ti sample. Based on DR-UV data, the synthesized samples obtained in this study may also become promising catalysts for photo-assisted removal of synthetic dye in aqueous solution.</p> <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.19.4.2732">http://dx.doi.org/10.5755/j01.ms.19.4.2732</a></p> |
| first_indexed | 2024-12-12T07:30:01Z |
| format | Article |
| id | doaj.art-0d6483f1f47c408bb00000cacf646c99 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-12T07:30:01Z |
| publishDate | 2013-12-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-0d6483f1f47c408bb00000cacf646c992022-12-22T00:33:03ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892013-12-0119444344710.5755/j01.ms.19.4.27322699Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite NanocrystalsOman ZUAS0Nuryatini HAMIM1Research Centre for Chemistry, Indonesian Institute of Sciences (RCChem-LIPI) Kawasan PUSPIPTEK Serpong, 15314, Tangerang, Banten, IndonesiaResearch Centre for Chemistry, Indonesian Institute of Sciences (RCChem-LIPI) Kawasan PUSPIPTEK Serpong, 15314, Tangerang, Banten, Indonesia<p>Pure TiO<sub>2</sub> and CeO<sub>2</sub>-doped TiO<sub>2</sub> (3 % CeO<sub>2</sub>-97 %TiO<sub>2</sub>) composite nanocrystals were synthesized via co-precipitation method and characterized using TGA, XRD, FTIR, DR-UV-vis and TEM. The XRD data revealed that the phase structure of the synthesized samples was mainly in pure anatase having crystallite size in the range of 7 nm<sub> </sub>–<sub> </sub>11 nm. Spherical shapes with moderate aggregation of the crystal particles were observed under the TEM observation. The presence of the CeO<sub>2</sub> at TiO<sub>2</sub> site has not only affected morphologically but also induced the electronic property of the TiO<sub>2</sub> by lowering the band gap energy from 3.29 eV (<em>E<sub>g</sub></em>-Ti) to 3.15 eV (<em>E</em><sub>g</sub>-CeTi). Performance evaluation of the synthesized samples showed that both samples have a strong adsorption capacity toward Congo red (CR) dye in aqueous solution at room temperature experiment, where the capacity of the CeTi was higher than the Ti sample. Based on DR-UV data, the synthesized samples obtained in this study may also become promising catalysts for photo-assisted removal of synthetic dye in aqueous solution.</p> <p>DOI: <a href="http://dx.doi.org/10.5755/j01.ms.19.4.2732">http://dx.doi.org/10.5755/j01.ms.19.4.2732</a></p>http://matsc.ktu.lt/index.php/MatSc/article/view/2732TiO2CeO2metal oxidenanocrystalsynthetic dye |
| spellingShingle | Oman ZUAS Nuryatini HAMIM Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals Medžiagotyra TiO2 CeO2 metal oxide nanocrystal synthetic dye |
| title | Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals |
| title_full | Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals |
| title_fullStr | Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals |
| title_full_unstemmed | Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals |
| title_short | Synthesis, Characterization and Properties of CeO2-doped TiO2 Composite Nanocrystals |
| title_sort | synthesis characterization and properties of ceo2 doped tio2 composite nanocrystals |
| topic | TiO2 CeO2 metal oxide nanocrystal synthetic dye |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/2732 |
| work_keys_str_mv | AT omanzuas synthesischaracterizationandpropertiesofceo2dopedtio2compositenanocrystals AT nuryatinihamim synthesischaracterizationandpropertiesofceo2dopedtio2compositenanocrystals |