KINETIC MODELS FOR SOLID STATE PHASE TRANSFORMATION IN TIO2 NANOPARTICLES

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SHAKIBANIA R.A.; GHASEMI M.R.; HEKMAT NAZEMI A.

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Journal: Journal of Applied Research in Chemistry Year:2013 | Volume:6 | Issue:4 Page(s): 33-43

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Information Journal Paper

Title

KINETIC MODELS FOR SOLID STATE PHASE TRANSFORMATION IN TIO2 NANOPARTICLES

Author(s)

SHAKIBANIA R.A. | GHASEMI M.R. | HEKMAT NAZEMI A. | Issue Writer Certificate

Keywords

AMORPHOUS TIO2Q2

CRYSTALLIZATIONQ2

POLYMORPHQ2

ANATASEQ2

RUTILEQ2

BROOKITEQ2

KINETIC MODELQ2

Abstract

In this paper, solid phase transformation of titanium oxide nanoparticles at different heat treatment conditions were investigated using different developed KINETIC MODELs. The agreement of the developed models which are a combination of nucleation and growth, with experimental data for solid phase transformation of titania with nanoparticle size at dry heat treatment and hydrothermal conditions were checked and the results show that the developed models are able to predict kinetic transformation of titanium oxide POLYMORPH. Result also shows that nucleation mechanism of ANATASE formation from amorphous solid phase in a solution is a surface nucleation and at dry heat treatments at temperatures of 300-400oC is of combined interface and surface nucleation. Researchers have stated that in solid transformation of ANATASE nanocrystals to RUTILE at temperature below 600oC, transformation occurs by interface nucleation mechanism. The results of this work show that due to particle growth at dry heat treatment condition at long period of time, surface nucleation can also play an important role. The advantage of the models developed in this work over other models is that, these models can predict the solid phase transformation of TiO2 nanoparticles without the need for data on titanium oxide nanoparticle size.

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APA: Copy

SHAKIBANIA, R.A., GHASEMI, M.R., & HEKMAT NAZEMI, A.. (2013). KINETIC MODELS FOR SOLID STATE PHASE TRANSFORMATION IN TIO₂ NANOPARTICLES. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 6(4), 33-43. SID. https://sid.ir/paper/180281/en

Vancouver: Copy

SHAKIBANIA R.A., GHASEMI M.R., HEKMAT NAZEMI A.. KINETIC MODELS FOR SOLID STATE PHASE TRANSFORMATION IN TIO₂ NANOPARTICLES. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2013;6(4):33-43. Available from: https://sid.ir/paper/180281/en

IEEE: Copy

R.A. SHAKIBANIA, M.R. GHASEMI, and A. HEKMAT NAZEMI, “KINETIC MODELS FOR SOLID STATE PHASE TRANSFORMATION IN TIO₂ NANOPARTICLES,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 6, no. 4, pp. 33–43, 2013, [Online]. Available: https://sid.ir/paper/180281/en

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