Synthesis and characterization of nano-wollastonite from rice husk ash and limestone

Research output: Chapter in Book/Report/Conference proceedingConference contribution

13 Citations (Scopus)

Abstract

Wollastonite, CaSiO3 material was prepared from rice husk ash, as the source for SiO2 and limestone, source for CaO using sol-gel method. Rice husk ash and CaO powder was mixed together in 100ml distilled water with the rice husk ash/CaO ratios of 45:55 and 40:60. The mixed solution was place in the autoclave and heated at 135°C for 4 hours and calcined at 950°C for 1 and 2 hours. From the XRD results, ratio of 45:55 exhibited that β-wollastonite is the major phase and the minor phase is only contributed by cristoballite and by calcining the mixture for 2 hrs would yield better crystallinity. Both of the rice husk ash:CaO ratios produced wollastonite materials in cylinder structures. Wollastonite with nano size grain was obtained for an hour calcination and 2 hrs of calcination would increase the grain size over 100 nm for ratio, 45:55 and 40:60.Therefore in order to get the nano size of wollastonite material, period of calcination process has to be controlled.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages43-47
Number of pages5
Volume756
DOIs
Publication statusPublished - 2013
Event3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012 - Selangor
Duration: 5 Dec 20127 Dec 2012

Publication series

NameMaterials Science Forum
Volume756
ISSN (Print)02555476

Other

Other3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012
CitySelangor
Period5/12/127/12/12

Fingerprint

Ashes
Calcium Carbonate
limestone
rice
ashes
Limestone
Calcination
roasting
synthesis
grain size
autoclaves
Autoclaves
Sol-gel process
crystallinity
Powders
gels
calcium silicate
Water
water

Keywords

  • Autoclave
  • Limestone
  • Nano-wollastonite
  • Rice husk ash
  • Sol-gel method

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Synthesis and characterization of nano-wollastonite from rice husk ash and limestone. / Ismail, Hamisah; Shamsudin, Roslinda; Abdul Hamid, Muhammad Azmi; Jalar @ Jalil, Azman.

Materials Science Forum. Vol. 756 2013. p. 43-47 (Materials Science Forum; Vol. 756).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Ismail, H, Shamsudin, R, Abdul Hamid, MA & Jalar @ Jalil, A 2013, Synthesis and characterization of nano-wollastonite from rice husk ash and limestone. in Materials Science Forum. vol. 756, Materials Science Forum, vol. 756, pp. 43-47, 3rd ISESCO International Workshop and Conference on Nanotechnology 2012, IWCN 2012, Selangor, 5/12/12. https://doi.org/10.4028/www.scientific.net/MSF.756.43
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N2 - Wollastonite, CaSiO3 material was prepared from rice husk ash, as the source for SiO2 and limestone, source for CaO using sol-gel method. Rice husk ash and CaO powder was mixed together in 100ml distilled water with the rice husk ash/CaO ratios of 45:55 and 40:60. The mixed solution was place in the autoclave and heated at 135°C for 4 hours and calcined at 950°C for 1 and 2 hours. From the XRD results, ratio of 45:55 exhibited that β-wollastonite is the major phase and the minor phase is only contributed by cristoballite and by calcining the mixture for 2 hrs would yield better crystallinity. Both of the rice husk ash:CaO ratios produced wollastonite materials in cylinder structures. Wollastonite with nano size grain was obtained for an hour calcination and 2 hrs of calcination would increase the grain size over 100 nm for ratio, 45:55 and 40:60.Therefore in order to get the nano size of wollastonite material, period of calcination process has to be controlled.

AB - Wollastonite, CaSiO3 material was prepared from rice husk ash, as the source for SiO2 and limestone, source for CaO using sol-gel method. Rice husk ash and CaO powder was mixed together in 100ml distilled water with the rice husk ash/CaO ratios of 45:55 and 40:60. The mixed solution was place in the autoclave and heated at 135°C for 4 hours and calcined at 950°C for 1 and 2 hours. From the XRD results, ratio of 45:55 exhibited that β-wollastonite is the major phase and the minor phase is only contributed by cristoballite and by calcining the mixture for 2 hrs would yield better crystallinity. Both of the rice husk ash:CaO ratios produced wollastonite materials in cylinder structures. Wollastonite with nano size grain was obtained for an hour calcination and 2 hrs of calcination would increase the grain size over 100 nm for ratio, 45:55 and 40:60.Therefore in order to get the nano size of wollastonite material, period of calcination process has to be controlled.

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KW - Nano-wollastonite

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