Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO
<abstract language="eng">The main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spe...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2009-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035 |
| _version_ | 1818506816395411456 |
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| author | Thiago N. M. Cervantes Dimas A. M. Zaia Henrique de Santana |
| author_facet | Thiago N. M. Cervantes Dimas A. M. Zaia Henrique de Santana |
| author_sort | Thiago N. M. Cervantes |
| collection | DOAJ |
| description | <abstract language="eng">The main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spectrophotometric methods to verify which the conditions on Ti/TiO2 electrode was the best for the photoelectrodegradation of them. The results showed that decolorization rates were higher than 90% during a period of 270 min. FT-IR spectroscopy showed that intermediate substances were formed after the decolorization and N=N group/aromatic structures were preserved independently of the specific structure of the dyes. |
| first_indexed | 2024-12-10T22:09:45Z |
| format | Article |
| id | doaj.art-8dcad313ff86461e966f290d1fada1a3 |
| institution | Directory Open Access Journal |
| issn | 0100-4042 1678-7064 |
| language | English |
| last_indexed | 2024-12-10T22:09:45Z |
| publishDate | 2009-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-8dcad313ff86461e966f290d1fada1a32022-12-22T01:31:39ZengSociedade Brasileira de QuímicaQuímica Nova0100-40421678-70642009-01-013292423242810.1590/S0100-40422009000900035Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiOThiago N. M. CervantesDimas A. M. ZaiaHenrique de Santana<abstract language="eng">The main goal of this paper was to study the degradation of synthetic dyes using photoelectrocatalytic properties of particulate films of TiO2 supported on plates of titanium and stimulated by UV-Vis radiation. The dyes decolorizations were measured using spectrophotometric methods to verify which the conditions on Ti/TiO2 electrode was the best for the photoelectrodegradation of them. The results showed that decolorization rates were higher than 90% during a period of 270 min. FT-IR spectroscopy showed that intermediate substances were formed after the decolorization and N=N group/aromatic structures were preserved independently of the specific structure of the dyes.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035heterogeneous photocatalysistitanium dioxidesynthetic dyes |
| spellingShingle | Thiago N. M. Cervantes Dimas A. M. Zaia Henrique de Santana Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO Química Nova heterogeneous photocatalysis titanium dioxide synthetic dyes |
| title | Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO |
| title_full | Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO |
| title_fullStr | Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO |
| title_full_unstemmed | Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO |
| title_short | Estudo da fotocatálise heterogênea sobre Ti/TiO2 na descoloração de corantes sintéticos A heterogeneous photocatalysis study of decolorization of synthetic dyes on Ti/TiO |
| title_sort | estudo da fotocatalise heterogenea sobre ti tio2 na descoloracao de corantes sinteticos a heterogeneous photocatalysis study of decolorization of synthetic dyes on ti tio |
| topic | heterogeneous photocatalysis titanium dioxide synthetic dyes |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422009000900035 |
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