Publicação
Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles
| Resumo: | This work describes the synthesis and characterization of 2-aminothiazole-modified titania and its application on Hg (II) photoreduction in aqueous medium. Infrared spectroscopy confirmed the chemical modification of the titania matrix. The number of 2-aminothiazole groups attached to the titania was determined by Kjeldahl's method. The photocatalytic experiments were carried out in a cylindrical photoreactor thermostatted at 298 K. The resulting modified photocatalyst 2-aminothiazole titania (TiAT) revealed an enhance in the Hg (II) photoreduction capacity at studied pH values (3, 7 and 9). In addition, sorption studies showed that the photocatalyst TiAT presented a lower equilibrium time and a higher sorption capacity of Hg(II) ion, demonstrating that sorption plays a fundamental role in the photoreduction mechanism. ©2006 Sociedade Brasileira de Química. |
|---|---|
| Autores principais: | Cristante, Valtair M. |
| Outros Autores: | Araujo, Adriana B.; Jorge, Sônia M. A.; Florentino, Ariovaldo O.; Valente, José P. S.; Padilha, Pedro M. |
| Assunto: | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| Ano: | 2014 |
| País: | Brasil |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | IBICT |
| Idioma: | inglês |
| Origem: | Oasisbr |
| _version_ | 1871537659430567936 |
|---|---|
| author | Cristante, Valtair M. |
| author2 | Araujo, Adriana B. Jorge, Sônia M. A. Florentino, Ariovaldo O. Valente, José P. S. Padilha, Pedro M. |
| author2_role | author author author author author |
| author_facet | Cristante, Valtair M. Araujo, Adriana B. Jorge, Sônia M. A. Florentino, Ariovaldo O. Valente, José P. S. Padilha, Pedro M. |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"Cristante, Valtair M.\"},{\"Person.name\":\"Araujo, Adriana B.\"},{\"Person.name\":\"Jorge, Sônia M. A.\"},{\"Person.name\":\"Florentino, Ariovaldo O.\"},{\"Person.name\":\"Valente, José P. S.\"},{\"Person.name\":\"Padilha, Pedro M.\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Cristante, Valtair M. Araujo, Adriana B. Jorge, Sônia M. A. Florentino, Ariovaldo O. Valente, José P. S. Padilha, Pedro M. |
| datacite.date.Accepted.fl_str_mv | 2006-06-08T00:00:00Z |
| datacite.date.available.fl_str_mv | 2014-05-27T11:21:53Z |
| datacite.date.embargoed.fl_str_mv | 2014-05-27T11:21:53Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| datacite.titles.title.fl_str_mv | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| dc.creator.none.fl_str_mv | Cristante, Valtair M. Araujo, Adriana B. Jorge, Sônia M. A. Florentino, Ariovaldo O. Valente, José P. S. Padilha, Pedro M. |
| dc.date.Accepted.fl_str_mv | 2006-06-08T00:00:00Z |
| dc.date.available.fl_str_mv | 2014-05-27T11:21:53Z |
| dc.date.embargoed.fl_str_mv | 2014-05-27T11:21:53Z |
| dc.format.none.fl_str_mv | 453-457 |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/11449/68919 |
| dc.language.none.fl_str_mv | eng |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
| dc.subject.none.fl_str_mv | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| dc.title.fl_str_mv | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | This work describes the synthesis and characterization of 2-aminothiazole-modified titania and its application on Hg (II) photoreduction in aqueous medium. Infrared spectroscopy confirmed the chemical modification of the titania matrix. The number of 2-aminothiazole groups attached to the titania was determined by Kjeldahl's method. The photocatalytic experiments were carried out in a cylindrical photoreactor thermostatted at 298 K. The resulting modified photocatalyst 2-aminothiazole titania (TiAT) revealed an enhance in the Hg (II) photoreduction capacity at studied pH values (3, 7 and 9). In addition, sorption studies showed that the photocatalyst TiAT presented a lower equilibrium time and a higher sorption capacity of Hg(II) ion, demonstrating that sorption plays a fundamental role in the photoreduction mechanism. ©2006 Sociedade Brasileira de Química. |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| id | oasisbr_dae72e64bcbb91db02fa86b3f4209de4 |
| identifier.url.fl_str_mv | http://hdl.handle.net/11449/68919 |
| inst_facet_str | urn:organizationAcronym:oasisbr{{{_:::_}}}IBICT |
| instacron_str | OASISBR |
| institution | IBICT |
| instname_str | IBICT |
| language | eng |
| network_acronym_str | oasisbr |
| network_name_str | Oasisbr |
| oai_identifier_str | oai:repositorio.unesp.br:11449/68919 |
| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | Cristante, Valtair M. Araujo, Adriana B. Jorge, Sônia M. A. Florentino, Ariovaldo O. Valente, José P. S. Padilha, Pedro M. |
| publishDate | 2014 |
| repo_facet_str | urn:repositoryAcronym:oasisbr{{{_:::_}}}Oasisbr |
| reponame_str | Oasisbr |
| repository_id_str | urn:repositoryAcronym:oasisbr |
| service_str_mv | urn:repositoryAcronym:oasisbr |
| spelling | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particlesCristante, Valtair M.Araujo, Adriana B.Jorge, Sônia M. A.Florentino, Ariovaldo O.Valente, José P. S.Padilha, Pedro M.2-aminothiazole3- chloropropyltrimethoxysilanePhotocatalysisTiO2open accesshttp://purl.org/coar/access_right/c_abf2http://hdl.handle.net/11449/68919HandleJournal of the Brazilian Chemical Society, v. 17, n. 3, p. 453-457, 2006.N/AHasVersion0103-5053N/AHasVersionS0103-50532006000300004N/AHasVersionWOS:000237738400004N/AHasVersion2-s2.0-33744733360N/AHasVersion2-s2.0-33744733360.pdfN/AHasVersion6981448637456391N/AHasVersion0000-0003-4179-0574N/AHasVersionhttps://doi.org/http://dx.doi.org/10.1590/S0103-50532006000300004DOIhttp://hdl.handle.net/11449/68919Handlehttps://doi.org/10.1590/S0103-50532006000300004DOI2014-05-27T11:21:53Z2014-05-272006-06-08T00:00:00ZThis work describes the synthesis and characterization of 2-aminothiazole-modified titania and its application on Hg (II) photoreduction in aqueous medium. Infrared spectroscopy confirmed the chemical modification of the titania matrix. The number of 2-aminothiazole groups attached to the titania was determined by Kjeldahl's method. The photocatalytic experiments were carried out in a cylindrical photoreactor thermostatted at 298 K. The resulting modified photocatalyst 2-aminothiazole titania (TiAT) revealed an enhance in the Hg (II) photoreduction capacity at studied pH values (3, 7 and 9). In addition, sorption studies showed that the photocatalyst TiAT presented a lower equilibrium time and a higher sorption capacity of Hg(II) ion, demonstrating that sorption plays a fundamental role in the photoreduction mechanism. ©2006 Sociedade Brasileira de Química.eng453-457reponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles Cristante, Valtair M. 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| title | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| title_full | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| title_fullStr | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| title_full_unstemmed | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| title_short | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| title_sort | Enhanced photocatalytic reduction of Hg(II) in aqueous medium by 2-aminothiazole-modified TiO2 particles |
| topic | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| topic_facet | 2-aminothiazole 3- chloropropyltrimethoxysilane Photocatalysis TiO2 |
| url | http://hdl.handle.net/11449/68919 |
| visible | 1 |
Atividades financiadas
Não foram encontrados projetos financiados.