Abstract
This study investigated the visible-light catalysis mediated by zeolite NaY on the oxidation of dyes with H2O2. The results demonstrated that zeolite NaY acts as a sink for the electron from the photo-excited dye in the heterogeneous catalysis. Furthermore, the electron can effectively activate H2O2 to produce ·OH radical that is a powerful oxidant for the oxidation of dye at room temperature. The effects of the framework topology, Si/Al ratio, and exchangeable cation of the zeolite on the oxidation of various dyes were also shown.
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Supported by the 973 Program of China (Grant No. 2003CB415006), the National Natural Science Foundation of China (Grant Nos. 20520120221, 20537010, 50436040, 20371048, 20407016) and the Chinese Academy of Sciences
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Liu, L., Ma, W., Song, W. et al. Zeolite NaY-mediated oxidation of dyes with H2O2: unique heterogeneous non-transition metal center cleavage of H2O2 under visible light irradiation. Sci. China Ser. B-Chem. 50, 770–775 (2007). https://doi.org/10.1007/s11426-007-0138-1
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DOI: https://doi.org/10.1007/s11426-007-0138-1