• fast catalytic oxidation of phenol over iron modified zeolite l nanocrystals

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/01/01
    • تاریخ انتشار در تی پی بین: 1392/01/01
    • تعداد بازدید: 584
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     iron modified zeolite l nanocrystals (fe/kl) were synthesized hydrothermally by the incorporation of fe3+ in zeolite l lattice. xrd results showed an increase in the inter-planar spacing and lattice parameters. transition characteristic of the tetrahedral fe3+species were observed in the uv–vis spectrum. the oxidation of phenol in the presence of acetic acid over fe/kl gave 93.40% conversion in 30 min with selective formation of 77.47% catechol and 22.53% hydroquinone. the catalytic activity was significantly enhanced by the addition of acetic acid. it was found that the acetic acid was oxidized by hydrogen peroxide to form peracetic acid, which served as a better oxidizing agent.

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