Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes
TiO2 nanotubes and immobilized TiO2 nanotubes were successfully synthesized by a hydrothermal method and binding method. The produced photocatalysts were characterized by the Brunauer-Emmett-Teller (BET) method, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), tran...
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| Format: | Thesis |
| Language: | English |
| Published: |
2012
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| Online Access: | http://eprints.usm.my/45938/1/WONG%20CHUNG%20LENG_HJ.pdf |
| _version_ | 1825835246841495552 |
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| author | Wong, Chung Leng |
| author_facet | Wong, Chung Leng |
| author_sort | Wong, Chung Leng |
| collection | USM |
| description | TiO2 nanotubes and immobilized TiO2 nanotubes were successfully
synthesized by a hydrothermal method and binding method. The produced
photocatalysts were characterized by the Brunauer-Emmett-Teller (BET) method,
scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX),
transmission electron microscope (TEM) and X-ray diffraction (XRD). The
photocatalytic activities of the photocatalysts were evaluated through the
photocatalytic degradation of aqueous phenol solution in a batch reactor. TiO2
nanotubes produced at 130 °C for 3 h showed the highest degradation rate of phenol
compared with the other samples prepared at 130 °C for 1 h, 5 h and 7 h, complete
degradation being achieved in 130 min. Special focus was given in order to
determine the optimum composition of each component (catalyst, support and binder)
in the immobilization of TiO2 nanotubes. The highest efficiency of phenol
degradation was achieved when the ratios of TiO2 nanotubes: silica gel: colloidal
silica was 1:2:20. For the comparison, TiO2 nanotubes and immobilized TiO2
nanotubes showed higher photocatalytic activity as compared with pure TiO2. The
photocatalytic performance of TiO2 nanotubes and immobilized TiO2 nanotubes
achieved 100 % and 98.0 % respectively, of phenol degradation, whereas pure TiO2
attained only 77.0 % degradation. The photocatalytic activity of the immobilized
TiO2 nanotubes was slightly decreased after four cycles for phenol degradation. |
| first_indexed | 2024-03-06T15:34:52Z |
| format | Thesis |
| id | usm.eprints-45938 |
| institution | Universiti Sains Malaysia |
| language | English |
| last_indexed | 2024-03-06T15:34:52Z |
| publishDate | 2012 |
| record_format | dspace |
| spelling | usm.eprints-459382020-01-20T07:23:13Z http://eprints.usm.my/45938/ Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes Wong, Chung Leng TP1-1185 Chemical technology TiO2 nanotubes and immobilized TiO2 nanotubes were successfully synthesized by a hydrothermal method and binding method. The produced photocatalysts were characterized by the Brunauer-Emmett-Teller (BET) method, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), transmission electron microscope (TEM) and X-ray diffraction (XRD). The photocatalytic activities of the photocatalysts were evaluated through the photocatalytic degradation of aqueous phenol solution in a batch reactor. TiO2 nanotubes produced at 130 °C for 3 h showed the highest degradation rate of phenol compared with the other samples prepared at 130 °C for 1 h, 5 h and 7 h, complete degradation being achieved in 130 min. Special focus was given in order to determine the optimum composition of each component (catalyst, support and binder) in the immobilization of TiO2 nanotubes. The highest efficiency of phenol degradation was achieved when the ratios of TiO2 nanotubes: silica gel: colloidal silica was 1:2:20. For the comparison, TiO2 nanotubes and immobilized TiO2 nanotubes showed higher photocatalytic activity as compared with pure TiO2. The photocatalytic performance of TiO2 nanotubes and immobilized TiO2 nanotubes achieved 100 % and 98.0 % respectively, of phenol degradation, whereas pure TiO2 attained only 77.0 % degradation. The photocatalytic activity of the immobilized TiO2 nanotubes was slightly decreased after four cycles for phenol degradation. 2012 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/45938/1/WONG%20CHUNG%20LENG_HJ.pdf Wong, Chung Leng (2012) Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes. Masters thesis, Universiti Sains Malaysia. |
| spellingShingle | TP1-1185 Chemical technology Wong, Chung Leng Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title | Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title_full | Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title_fullStr | Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title_full_unstemmed | Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title_short | Photocatalytic Degradation Of Phenol By Silica Gel-Supported Titania Nanotubes |
| title_sort | photocatalytic degradation of phenol by silica gel supported titania nanotubes |
| topic | TP1-1185 Chemical technology |
| url | http://eprints.usm.my/45938/1/WONG%20CHUNG%20LENG_HJ.pdf |
| work_keys_str_mv | AT wongchungleng photocatalyticdegradationofphenolbysilicagelsupportedtitaniananotubes |