TY - JOUR
T1 - Photoassisted fenton degradation of nonbiodegradable azo-dye (Reactive Black 5) over a novel supported iron oxide catalyst at neutral pH
AU - Hsueh, Chan Li
AU - Huang, Yao Hui
AU - Wang, Cheng Chien
AU - Chen, Chuh Yung
PY - 2006/2/15
Y1 - 2006/2/15
N2 - A novel supported iron oxide, prepared using a fluidized-bed reactor (FBR), was utilized as a catalyst of the heterogeneous photoassisted Fenton degradation of azo-dye Reactive Black 5 (RB5). This catalyst is much cheaper than Nafion-based catalysts, and can markedly accelerate the degradation of RB5 under irradiation by UVA (λ = 365 nm). The effects of the molar concentration of H2O2, the pH of the solution and the catalyst loading on the degradation of RB5 are elucidated. A simplified mechanism of RB5 decomposition that is consistent with the experimental findings for a solution with a pH of up to 7.0 is proposed. About 70% decolorization was measured and 45% of the total organic carbon was eliminated on the surface of the iron oxide at pH 7.0 after 480 min in the presence of 0.055 mM RB5, 5.0 g iron oxide/L, 29.4 mM H2O2, under 15 W UVA.
AB - A novel supported iron oxide, prepared using a fluidized-bed reactor (FBR), was utilized as a catalyst of the heterogeneous photoassisted Fenton degradation of azo-dye Reactive Black 5 (RB5). This catalyst is much cheaper than Nafion-based catalysts, and can markedly accelerate the degradation of RB5 under irradiation by UVA (λ = 365 nm). The effects of the molar concentration of H2O2, the pH of the solution and the catalyst loading on the degradation of RB5 are elucidated. A simplified mechanism of RB5 decomposition that is consistent with the experimental findings for a solution with a pH of up to 7.0 is proposed. About 70% decolorization was measured and 45% of the total organic carbon was eliminated on the surface of the iron oxide at pH 7.0 after 480 min in the presence of 0.055 mM RB5, 5.0 g iron oxide/L, 29.4 mM H2O2, under 15 W UVA.
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U2 - 10.1016/j.molcata.2005.09.044
DO - 10.1016/j.molcata.2005.09.044
M3 - Article
AN - SCOPUS:31544447713
SN - 1381-1169
VL - 245
SP - 78
EP - 86
JO - Journal of Molecular Catalysis A: Chemical
JF - Journal of Molecular Catalysis A: Chemical
IS - 1-2
ER -