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Modification of silica with 2,4-dinitrophenylhydrazanomethylphenol for monosaccharide productions | ||
Iranian Journal of Catalysis | ||
مقاله 10، دوره 4، شماره 3، آذر 2014، صفحه 195-203 اصل مقاله (346.53 K) | ||
نوع مقاله: Articles | ||
نویسندگان | ||
Kasim Mohammed Hello* 1؛ Hayder Mihsen2؛ Mosa Mosa2 | ||
1Chemistry Department, College of Science, Al-Muthanna University, Iraq | ||
2Chemistry Department, College of Science, University of Karbala, Iraq | ||
چکیده | ||
2,4-dinitrophenylhydrazanomethylphenol (DNPHMP) was immobilized onto silicate rice husk ash to form a heterogeneous catalyst denoted as RHDNPH. The elemental and EDX analysis of RHDNPH showed the nitrogen is incorporated into silica. The RHDNPH had 154.6 m2g-1 as a specific surface area. The FT-IR clearly showed the appearance of –NH and C=N absorption band at the expected range. The TGA curve shows that the RHDNPH was stable at the temperature of less than 200 °C. Hydrolysis experiments of cellulose were conducted in liquid face reaction at 140 °C, and 150 mg of catalyst mass in 11 h. The maximum hydrolysis of cellulose was 84 % with 100 % selectivity of glucose over the catalyst. The catalyst was simple in its preparation, stable during the cellulose hydrolysis in addition to repeatedly without a significant loss of its catalytic activity. | ||
کلیدواژهها | ||
Surface modification؛ Hydrolyses of cellulose؛ Rice Husk Ash؛ Salicylaldehydephenylhydrazone؛ Glucose | ||
مراجع | ||
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