| 高纯度多孔稻壳基白炭黑的制备及性质 |
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| 引用本文： | 李晓瑄,陈正行,周蕴宇. 高纯度多孔稻壳基白炭黑的制备及性质[J]. 西部粮油科技, 2010, 35(1): 51-53 |
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| 作者姓名： | 李晓瑄 陈正行 周蕴宇 |
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| 作者单位： | 江南大学食品科学与技术国家重点实验室,江南大学食品学院,江苏无锡214122 |
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| 摘 要： | 以燃烧后废弃的稻壳灰为原料,采用化学沉淀法制备了高纯度多孔稻壳基白炭黑,并采用原子吸收分光光度法、傅立叶红外光谱、扫描电镜、低温氮吸附法研究了其杂质含量、结构、形貌特征及多孔特性。研究结果显示,以废弃稻壳灰制备的白炭黑杂质含量极低,二氧化硅纯度达到99.8%以上,表观形貌为疏松的多孔结构,比表面积为57.8m2/g,最可几孔径约为32nm,有望在食品、医药、日化及橡胶工业等领域用作吸附剂、分散剂和补强剂。
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| 关 键 词： | 稻壳灰 白炭黑 多孔材料 |
Synthesis and Properties of High Purity Porous Silica White from Rice Husk Ash |
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| LI Xiao-xuan,CHEN Zheng-xing,ZHOU Yun-yu. Synthesis and Properties of High Purity Porous Silica White from Rice Husk Ash[J]. China Western Cereals & Oils Technology, 2010, 35(1): 51-53 |
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| Authors: | LI Xiao-xuan CHEN Zheng-xing ZHOU Yun-yu |
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| Affiliation: | LI Xiao-xuan,CHEN Zheng-xing,ZHOU Yun-yu(State Key Laboratory of Food Science , Technology,School of Food Science , Technology,Jiangnan University,Wuxi Jiangsu 214122,P.R.China) |
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| Abstract: | High purity porous silica white was prepared from waste rice husk ash by chemical precipitation.The impurity content,structure,morphology and porous characteristics of silica white were studied by Atomic Absorption Spectrophotometry(AAS),Fourier Transform Infrared Spectroscopy(FTIR),Scanning Electron Microscopic(SEM) and nitrogen adsorption.The silica white from rice husk ash showed very low impurity content and purity of silica was 99.8% or more.The loose porous morphology exhibited specific area of 57.8 m... |
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| Keywords: | rice husk ash silica white porous material |
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