1,4-Dioxane degradation by catalytic heterogeneous oxidation with FeOOH, CeO2 and CuO

1,4-Dioxane degradation by catalytic heterogeneous oxidation with FeOOH, CeO2 and CuO

SCARATTI , G. S; MOREIRA, R. F. P. M

Pôster:

Heterogeneous catalytic peroxidation and photoperoxidation of 1,4-dioxane was evaluated for the first time using FeOOH, CeO2 and CuO in aqueoussuspension. Due to the 1,4-dioxane carcinogen potential, it was included as a prioritypollutant by USEPA, justifying the need to develop an efficient process for its removalfrom water. Catalytic activity was evaluated by total carbon organic removal and H2O2decomposition during the reactions. Results showed that CuO presented the highestconstant rate for H2O2 decomposition. However, CuO did not promote 1,4-dioxanemineralization, but in the presence of UV light, ·OH production was initiated andapproximately 80% of mineralization was achieved. 

Heterogeneous catalytic peroxidation and photoperoxidation of 1,4-dioxane was evaluated for the first time using FeOOH, CeO2 and CuO in aqueoussuspension. Due to the 1,4-dioxane carcinogen potential, it was included as a prioritypollutant by USEPA, justifying the need to develop an efficient process for its removalfrom water. Catalytic activity was evaluated by total carbon organic removal and H2O2decomposition during the reactions. Results showed that CuO presented the highestconstant rate for H2O2 decomposition. However, CuO did not promote 1,4-dioxanemineralization, but in the presence of UV light, ·OH production was initiated andapproximately 80% of mineralization was achieved. 

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DOI: 10.5151/cobeq2018-PT.0099

Referências bibliográficas

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Como citar:

SCARATTI , G. S; MOREIRA, R. F. P. M; "1,4-Dioxane degradation by catalytic heterogeneous oxidation with FeOOH, CeO2 and CuO", p-335-3338. In: . São Paulo: Blucher, 2018.
ISSN 23591757, DOI 10.5151/cobeq2018-PT.0099