Chiang Mai Journal of Science

Print ISSN: 0125-2526 | eISSN : 2465-3845

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Preparation of Nanosilica Powder from Rice Husk Ash by Precipitation Method

Nittaya Thuadaij and Apinon Nuntiya
* Author for corresponding; e-mail address: anuntiya@chiangmai.ac.th
Volume: Vol.35 No.1 (JANUARY 2008)
Research Article
DOI:
Received: 24 September 2007, Revised: -, Accepted: 15 October 2007, Published: -

Citation: Thuadaij N. and Nuntiya A., Preparation of Nanosilica Powder from Rice Husk Ash by Precipitation Method, Chiang Mai Journal of Science, 2008; 35(1): 206-211.

Abstract

This work presented a laboratory studies on the preparation of rice husk ash by burning at  700oC for 3 and 6 h, respectively. Consequently, silica content obtained after heat treatment at 700oC for 6 h was 98.14%. Rice husk ash (RHA) was purified by alkaline extraction method used 2.0, 2.5 and 3.0 N sodium hydroxide. Percent yield of  silica extracted by 2.5 N. NaOH, was 90.3% and the infrared spectral data supported the presence of hydrogen bonded silinol group and the siloxane groups in silica. Subsequently, the RHAwas subjected to precipitation method in order to produce nanosilica. The precipitation was done by refluxing silica from RHA in boiling 2.0, 2.5 and 3.0 N NaOH, respectively. TEM results showed that 2.5 N NaOH for 10 h provided agglomerate particles with dimension of  5-10. The specificsurface area was found to be 656 m2/g. From X-ray diffractograms and diffraction pattern showed that the obtained products were amorphous nanosilica.

Keywords: Nanosilica, Precipitation Method, Rice Husk Ash (RHA), TEM

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Performance of Giant Freshwater Prawn (Macrobrachium rosenbergii de Man) Reared in Earthen Ponds Beneath Plastic Film Shelters
page: 89 - 96

Niwooti Whangchai, Thepparath Ungsethaphand, Chanagun Chitmanat, Kriangsak Mengumphan and Supattra

Vol.34 No.1 (JANUARY 2007)
Research Article View: 891 Download: 427
A New Analytical Expression of the Gas Conversion for TAP Experiments with Bimodal-Pore-Structure Catalyst
page: 150 - 155

Wisuthchai Boonwatcharapunsakul and Phungphai Phanawadee

Vol.35 No.1 (JANUARY 2008)
Research Article View: 866 Download: 348
Pressure-Temperature Estimates of the Metamorphosed Sedimentary Rocks on the Eastern Side of Khao Phai, Immediate West of Ban Choeng Chai, Wang Pong, Phetchabun Province, Thailand
page: 283 - 293

Yuenyong Panjasawatwong, Boontarika Srithai and Udomporn Wipakul

Vol.35 No.2 (MAY 2008)
Research Article View: 915 Download: 257
Artificial Neural Networks Parameters Optimization with Design of Experiments: An Application in Ferromagnetic Materials Modeling
page: 83 - 91

Wimalin Laosiritaworn, and Nantakarn Chotchaithanakorn

Vol.36 No.1 (JANUARY 2009)
Research Article View: 919 Download: 363
Effect of Addition of CuO and Bi2O3 on Low Temperature Sintering of Pb(Zr,Ti)O3 - PbZn1/3Nb2/3O3- Pb(Ni1/3Nb2/3)O3 Based Ceramics
page: 50 - 58

Athipong Ngamjarurojana

Vol.36 No.1 (JANUARY 2009)
Research Article View: 946 Download: 321
Solving First Order Systems of Ordinary Differential Equations Using Parallel R-Point Block Method of Variable Step Size and Order
page: 9 - 23

Zurni B. Omar, and Mohamed Suleiman

Vol.36 No.1 (JANUARY 2009)
Research Article View: 848 Download: 248
Developing Indicators for Floodplain Wetlands: Managing Water in Agricultural Landscapes
page: 224 - 235

Kim Jenkins, Richard Kingsford, and Darren Ryder

Vol.36 No.2 (MAY 2009)
Short Communication View: 920 Download: 375
New Positive Temperature Coefficient Effect Based on Bi2O3+Fe2O3 or ZrO2+MnO2 Material and Used as Temperature Sensor
page: 109 - 120

Thongchai Panmatarith* [a], Chiraporn Sriprom [a] and Nanthida Sutthirawuth [b]

Vol.32 No.2 (MAY 2005)
Research Article View: 875 Download: 415
Synthesis and Characterisation of Poly(2-hydroxyethyl methacrylate-co-methyl acrylate) Hydrogels for Use as Temporary Skin Substitutes
page: 71 - 82

Tiwaporn Siriwittayakorn [a], Nantarat Suebsanit [a], Robert Molloy [a], Paisit Siriwittayakorn [b] and Malinee Prasitsilp [c]

Vol.28 No.2 (DECEMBER 2001)
Opinion View: 916 Download: 286
Rough Classifier: Experiments on Two Medical Data Sets
page: 59 - 63

Azuraliza A. Bakar, Md N. Sulaiman, Mohamed Othman and Mohd H. Selamat

Vol.28 No.1 (JUNE 2001)
Opinion View: 880 Download: 222
Determination of Number Density and Volume Fraction of Copper Precipitates Within Proeutectoid Cementite in High-Carbon Copper-Containing Steels Using Transmission Electron Microscopy
page: 31 - 38

Torranin Chairuangsri [a], Rik M. D. Brydson [b], David V. Edmonds [b]

Vol.28 No.1 (JUNE 2001)
Opinion View: 1,076 Download: 816
Solving First Order Systems of Ordinary Differential Equations Using Parallel R-Point Block Method of Variable Step Size and Order
page: 1 - 13

Zurni B. Omar, and Mohamed Suleiman

Vol.37 No.1 (JANUARY 2010)
Research Article View: 836 Download: 270
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