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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Kaolinite/TiO2/cobalt(II) Tetracarboxymetallophthalocyanine Nanocomposites as Heterogeneous Photocatalysts for Decomposition of Organic Pollutants Trimethoprim, Caffeine and Prometryn

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Autor(es):
da Silva, Tiago H. [1] ; Ribeiro, Anderson O. [2] ; Nassar, Eduardo J. [1] ; Trujillano, Raquel [3] ; Rives, Vicente [3] ; Vicente, Miguel A. [3] ; de Faria, Emerson H. [1] ; Ciuffi, Katia J. [1]
Número total de Autores: 8
Afiliação do(s) autor(es):
[1] Univ Franca, Ave Dr Armando Salles Oliveira 201, Pq Univ, BR-14404600 Franca, SP - Brazil
[2] Univ Fed ABC, Ctr Ciencias Nat & Humanas, BR-09210170 Santo Andre, SP - Brazil
[3] Univ Salamanca, Dept Quim Inorgan, GIR QUESCAT, E-37008 Salamanca - Spain
Número total de Afiliações: 3
Tipo de documento: Artigo Científico
Fonte: Journal of the Brazilian Chemical Society; v. 30, n. 12, SI, p. 2610-2623, DEC 2019.
Citações Web of Science: 1
Resumo

Sao Simao's Brazilian kaolinite has been treated with titanium(IV) isopropoxide and cobalt(II) tetracarboxymetallophthalocyanine under different conditions (acidic or basic), leading. after drying at 100 degrees C, to new titania-doped cobalt(II)-metallophthalocyanine/kaolinite solids. These solids were characterized by chemical analysis, powder X-ray diffraction. Fourier transform infrared spectroscopy, thermal analyses and nitrogen adsorption. No significant changes were observed by diffractometry, but the specific surface area depended of the synthetic route followed. The ability of these solids for photodegradation of trimethoprim, caffeine and prometryn was evaluated. The photodegradation was followed via mass spectrometry and UV-Vis absorption spectroscopy. The presence of photodegradation by-products was verified in all cases. All the photocatalysts showed high photodegradation rate against prometryn, trimethoprim and caffeine, the degradation efficiencies were 54, 30 and 90%, respectively, when using the heterogeneous photocatalysts. Comparison with commercial TiO2 (Degusa (R)) proved that the synthesized photocatalyst based on kaolinite present higher degradation rate than isolated titanium dioxide. (AU)

Processo FAPESP: 16/50322-2 - Materials with advanced technological and environmental applications
Beneficiário:Katia Jorge Ciuffi Pires
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 16/01501-1 - Catalisadores multifuncionais para processos oxidativos avançados empregando matrizes biogênicas ou argilas
Beneficiário:Katia Jorge Ciuffi Pires
Linha de fomento: Auxílio à Pesquisa - Regular
Processo FAPESP: 17/15482-1 - Novas estratégias para o reaproveitamento de subprodutos de curtumes para a obtenção de materiais porosos funcionais de alto valor agregado
Beneficiário:Emerson Henrique de Faria
Linha de fomento: Auxílio à Pesquisa - Regular