喀麦隆远北稻壳生物吸附剂的生产与性能研究

Elie Kolwa Doboy, H. Z. Adjia, R. Kamga
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引用次数: 6

摘要

对稻壳生物吸附剂的制备及性能进行了研究。事实上,生物吸附剂已通过磷酸处理获得;测定了其零电荷点、比表面、碘值和化学功能等理化特性。分析表明,零电荷点为8.7;pH值小于8.7时,生物吸附剂表面带正电;pH值大于8.7时,生物吸附剂表面带负电。生物吸附剂碘值为1560.87±1 mg/g,说明该生物吸附剂主要由小孢子组成。此外,生物吸附剂的比表面积为104.45±1m2/g,是Dada等(2012)获得的未经处理稻壳的5倍。酸处理提高了生物吸附剂的孔隙率。红外光谱中存在醚和芳香族功能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Production and Characterization of Rice Husk Biosorbent from Far North Cameroon
The objective of this study is the production and the characterization of rice husk biosorbent. In fact, the biosorbent has been obtained by phosphoric acid treatment; its physicochemicals characteristics such as point of zero charge, specific surface, iodine number and chemicals functions have been determined. The analysis indicaded that, the point of zero charge is 8.7; for the pH value less than 8.7, the biosorbent surface is posotively charged and for pH value higher than 8.7, the biosorbent surface is negatively charged. The biosorbent iodine number is 1560.87±1 mg/g, it means that, the biosorbent is constituted in majority of microspores. Furthermore, the specific surface of biosorbent is 104.45±1m2/g, it is five times as big than untreated rice husk obtained by Dada and al., (2012). Acid treatment improve the porosity of biosorbent. Infrarouge spectrum present ether and aromatic functions.
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