Analisis Komposisi Fasa dan Parameter Unit Sel Kristal Hasil Kalsinasi Suhu Tinggi Abu Cangkang (Paguroidea) dengan Metode Rietveld

Amirul Mukminin

Abstract


Quantitative analysis by data refinement   of the Rietveld method for calcium-based catalyst samples from hermit crabs (Paguroidea) ash has been successfully carried out. The results of the improvement showed that the samples of hermit crab shell calcined at 900 ° C gave different phase compositions and unit cell parameters due to the influence of calcination times 2, 3 and 4 hours. 2 hours is a single phase   CaCO3 calcite, 3 hours are multiphase   CaCO3 calcite and CaO, while a  4 hour sample is a single phase CaO . The reliability value (R) of the improvement results,  RP, Rwp, Rexp and GoF = χ2 gives good and acceptable results

References


J. Boro, A. J. Thakur, and D. Deka, “Solid oxide derived from waste shells of Turbonilla striatula as a renewable catalyst for biodiesel production,” Fuel Process. Technol., vol. 92, no. 10, pp. 2061–2067, 2011.

S. Yoshioka and Y. Kitano, “Transformation of aragonite to calcite through heating,” Geochem. J., vol. 19, no. 4, pp. 245–249, 1985.

R. A. Young, The rietveld method, vol. 5. International union of crystallography, 1993.

S. Sembiring, “Analisis Kuantitatif Data Diffraksi Sinar X Fasa Keramik Crystoballite Berbasis Silika Sekam Padi dengan Metode Rietveld,” JIEMS (Journal Ind. Eng. Manag. Syst., vol. 3, no. 2, 2017.

R. A. Shobirin and R. T. Tjahjanto, “Pengembangan Teknik Analisis Pola Difraksi Multifasa dengan Metode Rietveld Refinement : Studi Kasus Lapis Tipis PZT,” vol. 4, no. 1, pp. 23–30, 2017.

S. Pratapa, “Pengaruh Jangkau Sudut Ukur Pada Hasil Analisis Data Difraksi Sinar-X Menggunakan Metode Rietveld: Kasus Campuran Mgo-Y2o3,” Makara J. Sci., 2010.

B. A. Hunter and C. J. Howard, “LHPM: a computer program for Rietveld analysis of X-ray and neutron powder diffraction patterns,” ANSTO Rep., 1998.

H. Rietveld, “A profile refinement method for nuclear and magnetic structures,” J. Appl. Crystallogr., vol. 2, no. 2, pp. 65–71, 1969.

E. H. Kisi and C. J. Howard, Applications of neutron powder diffraction, vol. 15. Oxford University Press, 2012.




DOI: https://doi.org/10.32487/jst.v5i1.635

Refbacks

  • There are currently no refbacks.


View My Stats