具有高比表面积的稻壳灰的制备及其化学活性的研究

CIESC Journal

• BIOTECHNOLOGY & BIOENGINEERING • 上一篇下一篇

具有高比表面积的稻壳灰的制备及其化学活性的研究

冯庆革^a;林清宇^b;童张法^b;杉田修一^a

^a Department of Environmental and Civil Engineering, Hachinohe Institute of Technology, 88-1, Myo, Hachinohe 031-8501, Japan
^b School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2004-10-28 发布日期:2004-10-28
通讯作者: 冯庆革

Study on Preparation of Rice Husk Ash with High Specific Surface Area and Its Chemical Reactivity

FENG Qingge^a;LIN Qingyu^b;TONG Zhangfa^b;Shuichi SUGITA^a

^a Department of Environmental and Civil Engineering, Hachinohe Institute of Technology, 88-1, Myo, Hachinohe 031-8501, Japan
^b School of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, China

Received:1900-01-01 Revised:1900-01-01 Online:2004-10-28 Published:2004-10-28
Contact: FENG Qingge

摘要/Abstract

摘要： Preparation of rice husk ash with high specific surface area and chemical reactivity of the product are reported in this paper. The amorphous rice husk ash with high specific surface area of 311 m^2.g^-1 was produced by heating acid treated rice husk at 700~C for 4 h. The isotherms of rice husk ash are similar in shape to type Ⅱ of Brunaner’s classification with mesopores being predominant. The rice husk ash has a high chemical reactivity, especially that pretreated with acid. This chemical reactivity depends on ashing temperature and pretreatment conditions. There is an exponential relation betweenthe specific surface area of rice husk ash and the change in the conductivity of saturated Ca(OH)2 solution with rice husk ash, from which the specific surface area can be known according to the conductivity change.

关键词: 高比表面积;制备;化学活性;Ca(OH)2;研究;稻壳灰

Abstract: Preparation of rice husk ash with high specific surface area and chemical reactivity of the product are reported in this paper. The amorphous rice husk ash with high specific surface area of 311 m^2.g^-1 was produced by heating acid treated rice husk at 700~C for 4 h. The isotherms of rice husk ash are similar in shape to type Ⅱ of Brunaner’s classification with mesopores being predominant. The rice husk ash has a high chemical reactivity, especially that pretreated with acid. This chemical reactivity depends on ashing temperature and pretreatment conditions. There is an exponential relation betweenthe specific surface area of rice husk ash and the change in the conductivity of saturated Ca(OH)2 solution with rice husk ash, from which the specific surface area can be known according to the conductivity change.

Key words: rice husk ash, pretreatment, specific surface area, chemical reactivity

冯庆革,林清宇,童张法,杉田修一. 具有高比表面积的稻壳灰的制备及其化学活性的研究[J]. CIESC Journal.

FENG Qingge,LIN Qingyu,TONG Zhangfa,Shuichi SUGITA. Study on Preparation of Rice Husk Ash with High Specific Surface Area and Its Chemical Reactivity[J]. .

具有高比表面积的稻壳灰的制备及其化学活性的研究

Study on Preparation of Rice Husk Ash with High Specific Surface Area and Its Chemical Reactivity

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