HEAT TREATMENT AND PARTICLE GRAIN SIZE EFFECT ON THE 
TIO2 NANOPARTICLE PHASE ALTERATION

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SHAYEGANI MADAD MEHDI; JALEH BABAK; ASHRAFI GHAZALEH

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Journal: Journal of Advanced Processes in Materials Engineering Year:2011 | Volume:4 | Issue:4 (15) Page(s): 51-57

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Title

HEAT TREATMENT AND PARTICLE GRAIN SIZE EFFECT ON THE TIO2 NANOPARTICLE PHASE ALTERATION

Author(s)

SHAYEGANI MADAD MEHDI | JALEH BABAK | ASHRAFI GHAZALEH | Issue Writer Certificate

Keywords

PHASE ALTERATIONQ3

SANS-SERIF"> TIO2 NANOPARTICLEQ3

HEAT TREATMENTQ3

PARTICLE GRAIN SIZEQ3

Abstract

TiO2 has drawn much research attention in recent years because of possible applications to environmental purification, selfclean surface and solar energy converters. Anatase and rutile are the two major crystal phases of TiO2. HEAT TREATMENT can change crystal structure and physical properties of TiO2 nanoparticles. In this work, the effect of particles size on anatase-rutile phase transformation due to HEAT TREATMENT process has been studied. We have used powders with two different sizes witha verage sizes of 30nm named as A and 70 nm named as B. The powders were annealed at 400, 500, 600, 700, 800, 900 and 1000oC for 2 h under ambient atmosphere and then cooled slowly. The titania powders obtained have been characterized using transmission electron microscopy (TEM), X-ray diffraction (XRD) and BET method. Grain size of samples and morphologic changes after HEAT TREATMENT were observed by TEM, also particle size effect on the anatase-rutile phase transformation for A and B powders were investigated by XRD technique. Phase transitions from anatase to rutile for powder A occurs at the lower temperature compared to powder B, that is probably due to difference of coarsening mechanism grain size for powder A and B.

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APA: Copy

SHAYEGANI MADAD, MEHDI, JALEH, BABAK, & ASHRAFI, GHAZALEH. (2011). HEAT TREATMENT AND PARTICLE GRAIN SIZE EFFECT ON THE TIO₂ NANOPARTICLE PHASE ALTERATION. ADVANCED PROCESSES IN MATERIALS, 4(4 (15)), 51-57. SID. https://sid.ir/paper/172719/en

Vancouver: Copy

SHAYEGANI MADAD MEHDI, JALEH BABAK, ASHRAFI GHAZALEH. HEAT TREATMENT AND PARTICLE GRAIN SIZE EFFECT ON THE TIO₂ NANOPARTICLE PHASE ALTERATION. ADVANCED PROCESSES IN MATERIALS[Internet]. 2011;4(4 (15)):51-57. Available from: https://sid.ir/paper/172719/en

IEEE: Copy

MEHDI SHAYEGANI MADAD, BABAK JALEH, and GHAZALEH ASHRAFI, “HEAT TREATMENT AND PARTICLE GRAIN SIZE EFFECT ON THE TIO₂ NANOPARTICLE PHASE ALTERATION,” ADVANCED PROCESSES IN MATERIALS, vol. 4, no. 4 (15), pp. 51–57, 2011, [Online]. Available: https://sid.ir/paper/172719/en

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