Solar Photolysis and Photocatalytic Decolorization of Thymol Blue
The photolysis and photocatalytic decolorization of an aqueous propane-2-ol solution of thymol blue(TB) (Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-,S,S-dioxide; Thymolsulfonpthalein) (C27H30O5S),were carried out under natural weathering conditions. Direct photol...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2008-01-01
|
| Series: | E-Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2008/936751 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832558026487234560 |
|---|---|
| author | Falah H. Hussein Ahmed N. Alkhateeb Jameel K. Ismail |
| author_facet | Falah H. Hussein Ahmed N. Alkhateeb Jameel K. Ismail |
| author_sort | Falah H. Hussein |
| collection | DOAJ |
| description | The photolysis and photocatalytic decolorization of an aqueous propane-2-ol solution of thymol blue(TB) (Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-,S,S-dioxide; Thymolsulfonpthalein) (C27H30O5S),were carried out under natural weathering conditions. Direct photolysis of TB solution of concentration 4.3X10−3 M degraded 37.1% of the colored solution after two hours of solar irradiation, however, the solar photocatalytic decolorization percentage reached 79.04% and 86.21% after the addition of zinc oxide and titanium dioxide, respectively, for the same period. The degradation percentages were investigated by monitoring the dye decolorization spectrophotometrically. The decolorization rates of TB are markedly related with amount of hydroxyl radical formed. A suitable mechanism for the mineralization of TB has been proposed. |
| format | Article |
| id | doaj-art-428220e220ed4e51b5c605b2718deaa4 |
| institution | Kabale University |
| issn | 0973-4945 2090-9810 |
| language | English |
| publishDate | 2008-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | E-Journal of Chemistry |
| spelling | doaj-art-428220e220ed4e51b5c605b2718deaa42025-02-03T01:33:20ZengWileyE-Journal of Chemistry0973-49452090-98102008-01-015224325010.1155/2008/936751Solar Photolysis and Photocatalytic Decolorization of Thymol BlueFalah H. Hussein0Ahmed N. Alkhateeb1Jameel K. Ismail2College of Science, Babylon University, Hilla, IraqCollege of Science, Babylon University, Hilla, IraqDepartment of Chemistry, College of Science, Ibb University, Ibb, YemenThe photolysis and photocatalytic decolorization of an aqueous propane-2-ol solution of thymol blue(TB) (Phenol, 4,4'-(3H-2,1-benzoxathiol-3-ylidene)bis(5-methyl-2-(1-methylethyl)-,S,S-dioxide; Thymolsulfonpthalein) (C27H30O5S),were carried out under natural weathering conditions. Direct photolysis of TB solution of concentration 4.3X10−3 M degraded 37.1% of the colored solution after two hours of solar irradiation, however, the solar photocatalytic decolorization percentage reached 79.04% and 86.21% after the addition of zinc oxide and titanium dioxide, respectively, for the same period. The degradation percentages were investigated by monitoring the dye decolorization spectrophotometrically. The decolorization rates of TB are markedly related with amount of hydroxyl radical formed. A suitable mechanism for the mineralization of TB has been proposed.http://dx.doi.org/10.1155/2008/936751 |
| spellingShingle | Falah H. Hussein Ahmed N. Alkhateeb Jameel K. Ismail Solar Photolysis and Photocatalytic Decolorization of Thymol Blue E-Journal of Chemistry |
| title | Solar Photolysis and Photocatalytic Decolorization of Thymol Blue |
| title_full | Solar Photolysis and Photocatalytic Decolorization of Thymol Blue |
| title_fullStr | Solar Photolysis and Photocatalytic Decolorization of Thymol Blue |
| title_full_unstemmed | Solar Photolysis and Photocatalytic Decolorization of Thymol Blue |
| title_short | Solar Photolysis and Photocatalytic Decolorization of Thymol Blue |
| title_sort | solar photolysis and photocatalytic decolorization of thymol blue |
| url | http://dx.doi.org/10.1155/2008/936751 |
| work_keys_str_mv | AT falahhhussein solarphotolysisandphotocatalyticdecolorizationofthymolblue AT ahmednalkhateeb solarphotolysisandphotocatalyticdecolorizationofthymolblue AT jameelkismail solarphotolysisandphotocatalyticdecolorizationofthymolblue |