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  • hydrolysis of cellulose to glucose at the low temperature of 423 k with cafe2o4-based solid catalyst

    نویسندگان :
    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1390/01/01
    • تاریخ انتشار در تی پی بین: 1390/01/01
    • تعداد بازدید: 542
    • تعداد پرسش و پاسخ ها: 0
    • شماره تماس دبیرخانه رویداد: -
     weakly magnetic cafe2o4 was synthesized by calcination of the hydroxides co-precipitated from aqueous ca(no3)2·6h2o and fe(no3)3·9h2o solutions in the presence of urea. microcrystalline cellulose was treated with ionic liquid (il) [amim]cl (1-allyl-3-methylimidazolium chloride) and hydrolyzed in the presence of the catalyst at 423 k. no il contamination was detected in the treated cellulose by energy-dispersive x-ray spectrometry (edx). a maximum hydrolysis yield of 49.8% and glucose selectivity of 74.1% was obtained. the catalyst was separated and reused four times, showing only a slight decrease in activity. the catalyst was stable and only minor leaching into water occurred as indicated by inductively coupled plasma atomic emission spectrometry (icp), x-ray diffraction (xrd), and temperature programmed desorption (tpd) measurements and a neutral ph after reactions. hydrolysis of cellulose with cafe2o4catalyst combined with [amim]cl pretreatment is a green, energy-saving and efficient process.

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