中文摘要：本研究用蔗渣制备了一种去除家禽饲料中黄曲霉毒素的新型吸附剂，并通过孔径分析仪、SEM、XRD、FTIR、TG/DTA和EDX对其进行表征。用专门设计的房间来制备吸附剂。SEM、XRD和FTIR分析显示吸附剂表面存在氧化铁。用Langmuir吸附等温式和Freundlich吸附等温式测定了其对黄曲霉毒素的吸附参数。研究发现ΔG0值随温度而升高，表明高温有利于毒素吸附。
外文摘要：A novel adsorbent for the removal of aflatoxin from poultry feed was prepared from bagasse and was characterized by surface area analyzer, SEM, XRD, FTIR, TG/DTA and EDX. A specially designed chamber was used for the preparation of the adsorbent. SEM, XRD and FTIR analysis showed the iron oxide presence on the adsorbent surface. The adsorption parameters were determined for aflatoxin adsorption using Freundlich and Langmuir isotherms. The equilibrium time was 115 min for 200 ppm at pH 3 while 150 min at pH 7. At high pH there was a decline in percent adsorption. Best fit was obtained with pseudo first order kinetics model for the kinetics data of adsorption. The value of ΔS0 (30.67 kJ mol−1 deg−1) was positive while that of ΔH0 (−5.9 kJ mol−1) and ΔG0 (−9.303, −9.610, −9.916 and −10.226 kJ mol−1 correspond to 30, 40, 50 and 60 °C) was negative. The increase in ΔG0 values with temperature showed that the adsorption process was favorable at high temperature.
外文关键词：Aflatoxins；Adsorption；Equilibrium time；Bagasse
作者：Zahoor, M；Khan, FA
作者单位：Univ Malakand
期刊名称：ARABIAN JOURNAL OF CHEMISTRY
期刊影响因子：3.613
出版年份：2018
出版刊次：5
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