Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA
Tebuthiuron (TBH) is a herbicide widely used in different cultures and known for its toxic effects. Electrochemical methods are promising for removing pollutants such as pesticides. This study showed the degradation of TBH using a DSA® anode operated at current densities of 50 to 200 mA cm-2. Remova...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Química
2012-01-01
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| Series: | Química Nova |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001000017&lng=en&tlng=en |
| _version_ | 1818109147560804352 |
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| author | Suellen A. Alves Tanare C. R. Ferreira Marcos R. V. Lanza |
| author_facet | Suellen A. Alves Tanare C. R. Ferreira Marcos R. V. Lanza |
| author_sort | Suellen A. Alves |
| collection | DOAJ |
| description | Tebuthiuron (TBH) is a herbicide widely used in different cultures and known for its toxic effects. Electrochemical methods are promising for removing pollutants such as pesticides. This study showed the degradation of TBH using a DSA® anode operated at current densities of 50 to 200 mA cm-2. Removal presented pseudo-first order kinetics while high-pressure liquid chromatography (UV detection) showed two peaks, ascribed to degradation intermediates. The maximum percentage of total organic carbon removed was 12.9%. Ion chromatography revealed that higher concentrations of nitrate and nitrite ions formed with increasing current density. |
| first_indexed | 2024-12-11T02:26:38Z |
| format | Article |
| id | doaj.art-5f98746e9c6845eeb7d1e273b3cd801a |
| institution | Directory Open Access Journal |
| issn | 1678-7064 |
| language | English |
| last_indexed | 2024-12-11T02:26:38Z |
| publishDate | 2012-01-01 |
| publisher | Sociedade Brasileira de Química |
| record_format | Article |
| series | Química Nova |
| spelling | doaj.art-5f98746e9c6845eeb7d1e273b3cd801a2022-12-22T01:23:55ZengSociedade Brasileira de QuímicaQuímica Nova1678-70642012-01-0135101981198410.1590/S0100-40422012001000017S0100-40422012001000017Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSASuellen A. Alves0Tanare C. R. Ferreira1Marcos R. V. Lanza2Universidade de São PauloUniversidade de São PauloUniversidade de São PauloTebuthiuron (TBH) is a herbicide widely used in different cultures and known for its toxic effects. Electrochemical methods are promising for removing pollutants such as pesticides. This study showed the degradation of TBH using a DSA® anode operated at current densities of 50 to 200 mA cm-2. Removal presented pseudo-first order kinetics while high-pressure liquid chromatography (UV detection) showed two peaks, ascribed to degradation intermediates. The maximum percentage of total organic carbon removed was 12.9%. Ion chromatography revealed that higher concentrations of nitrate and nitrite ions formed with increasing current density.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001000017&lng=en&tlng=enDSA-Cl2®electrooxidationtebuthiuron |
| spellingShingle | Suellen A. Alves Tanare C. R. Ferreira Marcos R. V. Lanza Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA Química Nova DSA-Cl2® electrooxidation tebuthiuron |
| title | Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA |
| title_full | Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA |
| title_fullStr | Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA |
| title_full_unstemmed | Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA |
| title_short | Oxidação eletroquímica do herbicida tebutiuron utilizando eletrodo do tipo DSA |
| title_sort | oxidacao eletroquimica do herbicida tebutiuron utilizando eletrodo do tipo dsa |
| topic | DSA-Cl2® electrooxidation tebuthiuron |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-40422012001000017&lng=en&tlng=en |
| work_keys_str_mv | AT suellenaalves oxidacaoeletroquimicadoherbicidatebutiuronutilizandoeletrododotipodsa AT tanarecrferreira oxidacaoeletroquimicadoherbicidatebutiuronutilizandoeletrododotipodsa AT marcosrvlanza oxidacaoeletroquimicadoherbicidatebutiuronutilizandoeletrododotipodsa |