Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade
<p class="orbitalabstract">In present work, simples of the food dyes organic synthetic (C<sub>2</sub>OH<sub>12</sub>N<sub>2</sub>Na<sub>2</sub>O<sub>7</sub>S<sub>2</sub>) was submitted to photodegradation with a...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Mato Grosso do Sul
2016-02-01
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| Series: | Orbital: The Electronic Journal of Chemistry |
| Subjects: | |
| Online Access: | http://orbital.ufms.br/index.php/Chemistry/article/view/717 |
| _version_ | 1818976868777328640 |
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| author | Danilo Rodrigues de Souza Jacques Antonio de Miranda Karla Renata Ribeiro Ana Maria Mapeli David de Jesus Santos |
| author_facet | Danilo Rodrigues de Souza Jacques Antonio de Miranda Karla Renata Ribeiro Ana Maria Mapeli David de Jesus Santos |
| author_sort | Danilo Rodrigues de Souza |
| collection | DOAJ |
| description | <p class="orbitalabstract">In present work, simples of the food dyes organic synthetic (C<sub>2</sub>OH<sub>12</sub>N<sub>2</sub>Na<sub>2</sub>O<sub>7</sub>S<sub>2</sub>) was submitted to photodegradation with a support of the Fenton and photo-Fenton reactions and measure toxicity with a support of essays germination of the lettuce seeds (<em>Lactuca sativa</em>). The results showed that, using Fenton and photo-Fenton reactions and simples dyes with a concentration of the 2500 ppm, were achieved 100% discoloration in only 30 minutes. The photocatalytic of the uv-vis light, uv-vis and H<sub>2</sub>O<sub>2</sub>, Fenton and photo-Fenton reactions, constant values presented apparent discolored of the, k<sub>ap</sub> = 0.02161 min<sup>-1</sup>, k<sub>ap</sub> = 0.04939 min<sup>-1</sup>, e k<sub>ap</sub> = 0.1244 min<sup>-1</sup>, respectively. The reduction toxicity assays presented a significant reduction of toxicity after analyzing the samples collected in 120 minutes of the photolysis. The toxicity reduction achieved, compared to the control sample, was 17.43% for the growth of the radicle and 32.35% for the growth of the hypocotyl.<strong> </strong></p><p> </p><p>DOI: <a href="http://dx.doi.org/10.17807/orbital.v1i1.717">http://dx.doi.org/10.17807/orbital.v1i1.717</a></p> |
| first_indexed | 2024-12-20T16:18:41Z |
| format | Article |
| id | doaj.art-c66865459f7742ab9c885a78cebdcd8c |
| institution | Directory Open Access Journal |
| issn | 1984-6428 |
| language | English |
| last_indexed | 2024-12-20T16:18:41Z |
| publishDate | 2016-02-01 |
| publisher | Universidade Federal de Mato Grosso do Sul |
| record_format | Article |
| series | Orbital: The Electronic Journal of Chemistry |
| spelling | doaj.art-c66865459f7742ab9c885a78cebdcd8c2022-12-21T19:33:42ZengUniversidade Federal de Mato Grosso do SulOrbital: The Electronic Journal of Chemistry1984-64282016-02-0111505610.17807/orbital.v1i1.717364Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de ToxicidadeDanilo Rodrigues de Souza0Jacques Antonio de Miranda1Karla Renata Ribeiro2Ana Maria Mapeli3David de Jesus Santos4Universidade Federal do Oeste da BahiaUniversidade Federal do Oeste da BahiaUniversidade Federal do Oeste da BahiaUniversidade Federal do Oeste da BahiaUniversidade Federal do Oeste da Bahia<p class="orbitalabstract">In present work, simples of the food dyes organic synthetic (C<sub>2</sub>OH<sub>12</sub>N<sub>2</sub>Na<sub>2</sub>O<sub>7</sub>S<sub>2</sub>) was submitted to photodegradation with a support of the Fenton and photo-Fenton reactions and measure toxicity with a support of essays germination of the lettuce seeds (<em>Lactuca sativa</em>). The results showed that, using Fenton and photo-Fenton reactions and simples dyes with a concentration of the 2500 ppm, were achieved 100% discoloration in only 30 minutes. The photocatalytic of the uv-vis light, uv-vis and H<sub>2</sub>O<sub>2</sub>, Fenton and photo-Fenton reactions, constant values presented apparent discolored of the, k<sub>ap</sub> = 0.02161 min<sup>-1</sup>, k<sub>ap</sub> = 0.04939 min<sup>-1</sup>, e k<sub>ap</sub> = 0.1244 min<sup>-1</sup>, respectively. The reduction toxicity assays presented a significant reduction of toxicity after analyzing the samples collected in 120 minutes of the photolysis. The toxicity reduction achieved, compared to the control sample, was 17.43% for the growth of the radicle and 32.35% for the growth of the hypocotyl.<strong> </strong></p><p> </p><p>DOI: <a href="http://dx.doi.org/10.17807/orbital.v1i1.717">http://dx.doi.org/10.17807/orbital.v1i1.717</a></p>http://orbital.ufms.br/index.php/Chemistry/article/view/717azorubinebioassaysphotocatalysisphoto-fentontoxicity |
| spellingShingle | Danilo Rodrigues de Souza Jacques Antonio de Miranda Karla Renata Ribeiro Ana Maria Mapeli David de Jesus Santos Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade Orbital: The Electronic Journal of Chemistry azorubine bioassays photocatalysis photo-fenton toxicity |
| title | Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade |
| title_full | Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade |
| title_fullStr | Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade |
| title_full_unstemmed | Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade |
| title_short | Degradação Fotocatalítica de Corante Alimentício Azorrubina e Monitoramento de Redução de Toxicidade |
| title_sort | degradacao fotocatalitica de corante alimenticio azorrubina e monitoramento de reducao de toxicidade |
| topic | azorubine bioassays photocatalysis photo-fenton toxicity |
| url | http://orbital.ufms.br/index.php/Chemistry/article/view/717 |
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