Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation
A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 an...
| Main Authors: | , , |
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| Format: | Conference or Workshop Item |
| Language: | English |
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2014
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| Online Access: | http://eprints.utm.my/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf |
| _version_ | 1796861108575797248 |
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| author | Yee, Khai Ooi Yuliati, Leny Siew, Ling Lee |
| author_facet | Yee, Khai Ooi Yuliati, Leny Siew, Ling Lee |
| author_sort | Yee, Khai Ooi |
| collection | ePrints |
| description | A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 and Cr were incorporated in the highly porous siliceous matrix. FTIR analysis indicated the existence of Si-O-Ti bonding in all the materials. UV-Vis D R analysis suggested that alteration of Ti species occurred from tetrahedrally to octahedrally coordinated Ti species when higher TUD-1 amount was used as photocatalyst support. However, the amount of TUD-1 did not affect the wavelength response and the band gap energy of the resulted materials. All the materials were having band gap energy of ~2.9 eV. The photocatalytic performance of the synthesized materials was evaluated through the photodegradation of Congo Red under visible light irradiation at 298 K for 5 h. Results showed that all the Cr-TiO2/TU D -1 materials had higher photocatalytic activity compared to Cr-TiO2, Amongst, Cr-TiO2/30TU D-1 appeared as the most superior photocatalyst that gave the highest percentage of dye degradation. |
| first_indexed | 2024-03-05T19:51:23Z |
| format | Conference or Workshop Item |
| id | utm.eprints-61480 |
| institution | Universiti Teknologi Malaysia - ePrints |
| language | English |
| last_indexed | 2024-03-05T19:51:23Z |
| publishDate | 2014 |
| record_format | dspace |
| spelling | utm.eprints-614802017-09-12T03:09:51Z http://eprints.utm.my/61480/ Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation Yee, Khai Ooi Yuliati, Leny Siew, Ling Lee QC Physics A series of new visible light driven photocatalysts of 1 mol% Cr doped Ti02 supported on various amount of TUD-1 have been successfully synthesized via sol gel method. XRD analysis revealed that all the Cr-Ti02/x TUD-l (x = 10,20,30,40 and 50 mol%) photocatalysts were in amorphous form. Both Ti02 and Cr were incorporated in the highly porous siliceous matrix. FTIR analysis indicated the existence of Si-O-Ti bonding in all the materials. UV-Vis D R analysis suggested that alteration of Ti species occurred from tetrahedrally to octahedrally coordinated Ti species when higher TUD-1 amount was used as photocatalyst support. However, the amount of TUD-1 did not affect the wavelength response and the band gap energy of the resulted materials. All the materials were having band gap energy of ~2.9 eV. The photocatalytic performance of the synthesized materials was evaluated through the photodegradation of Congo Red under visible light irradiation at 298 K for 5 h. Results showed that all the Cr-TiO2/TU D -1 materials had higher photocatalytic activity compared to Cr-TiO2, Amongst, Cr-TiO2/30TU D-1 appeared as the most superior photocatalyst that gave the highest percentage of dye degradation. 2014 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf Yee, Khai Ooi and Yuliati, Leny and Siew, Ling Lee (2014) Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation. In: The International Science Postgraduate Conference (ISPC2014), 10-12 Mac, 2014, Johor Bahru, Malaysia. |
| spellingShingle | QC Physics Yee, Khai Ooi Yuliati, Leny Siew, Ling Lee Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title | Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title_full | Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title_fullStr | Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title_full_unstemmed | Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title_short | Cr doped TiO2 supported on TUD-1 photocatalyst for congo red photodegradation |
| title_sort | cr doped tio2 supported on tud 1 photocatalyst for congo red photodegradation |
| topic | QC Physics |
| url | http://eprints.utm.my/61480/1/LeeSiewLing2014_CRDopedTio2SupportedOnTud1Photocatalyst.pdf |
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