Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties
TiO2 -SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon precursor was partially hydrolysed at room temper...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
The Instituition of Engineers Malaysia
2009
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/12241/ http://irep.iium.edu.my/12241/1/05Dec2009.pdf |
| _version_ | 1848777419355324416 |
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| author | Abd Aziz, Radhiyah -, Nor Asyikin Iis, Sopyan |
| author_facet | Abd Aziz, Radhiyah -, Nor Asyikin Iis, Sopyan |
| author_sort | Abd Aziz, Radhiyah |
| building | IIUM Repository |
| collection | Online Access |
| description | TiO2
-SiO2
powder photocatalysts with varied SiO2
portion were prepared through sol-gel technique using two types of metal
alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon
precursor was partially hydrolysed at room temperature, followed by the dropwise addition of these two metal alkoxides to
produce polytitanosiloxane (PTS) solution. Hexane filtration of the PTS solution followed by drying and calcination gave
TiO2
-SiO2
powder. The physico-chemical characteristics of the obtained powders were investigated using TG-DTA, FTIR,
XRD, and FESEM. Both types of powder particles were in nano-sized with spherical shape. The powder derived from PTP
showed particle size smaller than that derived from TPT. From TGA analysis, it can be observed that the PTP derived powder
start to crystallise at lower temperature compared to the TPT derived powder. However, TPT derived powder showed a
stability of anatase crystal structure even after high temperature calcination |
| first_indexed | 2025-11-14T14:45:41Z |
| format | Article |
| id | iium-12241 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:45:41Z |
| publishDate | 2009 |
| publisher | The Instituition of Engineers Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-122412012-01-16T00:11:27Z http://irep.iium.edu.my/12241/ Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties Abd Aziz, Radhiyah -, Nor Asyikin Iis, Sopyan TA Engineering (General). Civil engineering (General) TiO2 -SiO2 powder photocatalysts with varied SiO2 portion were prepared through sol-gel technique using two types of metal alkoxides: titanium tetraisopropoxide (TPT) and titanium diisopropoxide (PTP). Tetraethoxysilane (TEOS) as the silicon precursor was partially hydrolysed at room temperature, followed by the dropwise addition of these two metal alkoxides to produce polytitanosiloxane (PTS) solution. Hexane filtration of the PTS solution followed by drying and calcination gave TiO2 -SiO2 powder. The physico-chemical characteristics of the obtained powders were investigated using TG-DTA, FTIR, XRD, and FESEM. Both types of powder particles were in nano-sized with spherical shape. The powder derived from PTP showed particle size smaller than that derived from TPT. From TGA analysis, it can be observed that the PTP derived powder start to crystallise at lower temperature compared to the TPT derived powder. However, TPT derived powder showed a stability of anatase crystal structure even after high temperature calcination The Instituition of Engineers Malaysia 2009 Article PeerReviewed application/pdf en http://irep.iium.edu.my/12241/1/05Dec2009.pdf Abd Aziz, Radhiyah and -, Nor Asyikin and Iis, Sopyan (2009) Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties. Journal of the Institution of Engineers, Malaysia, 70 (4). pp. 34-40. ISSN 0126-513X |
| spellingShingle | TA Engineering (General). Civil engineering (General) Abd Aziz, Radhiyah -, Nor Asyikin Iis, Sopyan Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title | Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title_full | Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title_fullStr | Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title_full_unstemmed | Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title_short | Synthesis of TiO2-SiO2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| title_sort | synthesis of tio2-sio2 powder photocatalyst via sol-gel method: effect of titanium precursor type on powder properties |
| topic | TA Engineering (General). Civil engineering (General) |
| url | http://irep.iium.edu.my/12241/ http://irep.iium.edu.my/12241/1/05Dec2009.pdf |