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林产化学与工业

林产化学与工业 ›› 2013, Vol. 33 ›› Issue (5): 25-29.doi: 10.3969/j.issn.0253-2417.2013.05.005

• 1研究报告 • 上一篇    下一篇

活性炭-二氧化硅双功能吸附材料对姜黄素的吸附

王应红, 夏烈文, 张海连   

  1. 乐山师范学院 化学学院, 四川 乐山 614000
  • 收稿日期:2012-11-08 修回日期:1900-01-01 出版日期:2013-10-30 发布日期:2013-10-30

Adsorption of Curcumin on Difunctional Activated Carbon-silica

WANG Ying-hong, XIA Lie-wen, ZHANG Hai-lian   

  1. College of Chemistry, Leshan Normal University, Leshan 614000, China
  • Received:2012-11-08 Revised:1900-01-01 Online:2013-10-30 Published:2013-10-30

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摘要： 以桉木屑为原料,通过四氯化硅、石灰及水浸渍,在马弗炉中炭化及500~650℃ 活化,制得一种新型双功能活性炭-二氧化硅多孔复合吸附材料,扫描电镜分析表明,其主要孔径分布为2.6～4.3 nm,比表面积为 357 m2/g。为了测试新材料用于极性物质姜黄素固载的可行性,通过光谱法及正交试验分析对比研究了市售活性炭及新材料对姜黄素吸附效果的影响,考察了吸附剂用量、吸附时间、吸附温度对吸附效果的影响。结果表明：实验室自制新型吸附材具有良好的脱色吸附效果。在吸附时间达到 7 min 时、吸附温度 40℃、活性炭-二氧化硅与姜黄素的质量比为1 000:1.5时,姜黄素溶液脱色率为 94.82%。吸附材料不仅通过发达的微孔进行物理吸附,二氧化硅表面羟基可能也会通过氢键形成增加吸附量。

关键词: 活性炭-二氧化硅, 姜黄素, 吸附

Abstract: The new activated carbon-silica difunctional porous composite was made by eucalypts wood shavings as materials, by impregnating with silicon tetrachloride, calciumoxide and water and by carburizing and activating in Muffle furnace. The pore size distribution of new porous composite was from 2.6 to 4.3 nm and specific surface area was 357 m2/g.In order to obtain new porous composites to immobilize curcumin, the adsorption behavior of two kinds of absorbents on curcumin were studied by spectroscopy and quadrature analysis. The effects of adsorbent dosage, time, and temperature on the adsorption were investigated. Research results showed that lab-made activated carbon-silica difunctional composite had favorable performance in the adsorption of curcumin.The adsorption ratio of curcumin reached 94.82%. The optimum conditions for this activated carbon-silica were as follows: adsorption time within 7 min, temperature at 40℃, the mass ratio of activated carbon-silica to curcumin of 1 000:1.5.The new absorbents adsorbate curcumin by both physical adsorption and hydrogen bond.

Key words: activated carbon-silica, curcumin, adsorption

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