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IJSTR >> Volume 6 - Issue 6, June 2017 Edition

International Journal of Scientific & Technology Research  
International Journal of Scientific & Technology Research

Website: http://www.ijstr.org

ISSN 2277-8616

The Effect Of Heat Treatment On Phase Transformation And Morphology Of Nano-Crystalline Titanium Dioxide (Tio2)

[Full Text]



Yadanar Win Myint, Tun Tun Moe, Wint Yi Linn, Anjae Chang, Phyu Phyu Win



Nanocrystalline TiO2, Precipitation method, Heat treatment, Phase transformation



Effect of heat treatment on different properties of Titanium dioxide(TiO2) nanocrystal is being reported. Nanocrystalline TiO2 was synthesized via chemical precipitation methods using TiCl3 as starting material with two types of precipitants: NaOH and NH4OH. The effect of calcination temperatures (300,500 and 900˚C) on the crystalline structure, phase formation and morphology of synthesized TiO2 were investigated by Xray diffraction (XRD) and Scanning electron microscope (SEM). For precipitation method using TiCl3 + NaOH, the structure and phase determination using XRD analysis were confirmed the small crystallite size in the range of 11nm to 31nm with rutile phase. In the case of TiCl3 + NH4OH, phase transformation from anatase to rutile was clearly observed at annealing temperature of 900˚C. The SEM range revealed that almost of the nanocrystals are in spherical shape and effect of heat treatment on particle size was observed. According to the results, pH does not influence the TiO2 morphology but the agglomeration becomes higher when the temperature calcination is increased.



[1]. Gerhard Pfaff and Peter Reynders, “Angle-Dependent Optical Effects Deriving from Submicron Structures of Films and Pigments”, Chem. Rev., 99 (1999) 1963.

[2]. Siti Hajar Othman,Suraya Abdul Rashid, Tinia Idaty Mohd Ghazi and Norhafizah Abdullah, “Dispersion and Stabilization of Photocatalytic TiO2 Nanoparticles in Aqueous Suspension for Coatings Applications”, Journal of Nanomaterials,Volume 2012, Article ID 718214, 10 pages http://dx.doi.org/10.1155/2012/718214, 2012.

[3]. Akira Fujishima and Kenichi Honda, “Electrochemical Photolysis of Water at a Semiconductor Electrode” , Nature 238, 37 - 38; doi:10.1038/238037a0, 07 July 1972.

[4]. Y. H. Hsien, C. F. Chang, Y. H. Chen, and S. Cheng, “Photodegradation of aromatic pollutants in water over TiO2 supported on molecular sieves,”Appl. Catal. B:Environ., vol. 31, pp. 241-249, 2001.

[5]. J. Yu, M. Zhou, B. Cheng, X. Zhao, J. Mol, Catal.: "Preparation, characterization and photocatalytic activity of in situ N,S-codoped TiO2 powders", Journal of molecular catalysis A: Chemical, Elsevier Amsterdam, NL, vol. 246, no. 1-2,), pages 176-184, XP028015488, ISSN: 1381-1169 [retrieved on 2006-03-01],1 March 2006.

[6]. S. Mori, S. Yanagida, T. Sogo, Elsevier, Amsterdam. 7 (2006).

[7]. A. S. Bakri, M. Z. Sahda, F. Adriyanto, N. A. Raship, N. D. M. Said, S. A. Abdullah, and M. S. Rahim,”Effect of annealing temperature of titanium dioxide thin films on structural and electrical properties”, http://dx.doi.org/10.1063/1.4968283

[8]. A. Molea, V. Popescua , “The obtaining of titanium dioxide nanocrystalline powders”, Optoelectronics and Advanced Materials– Rapid Communications Vol. 5, No. 3, p. 242 – 246, March 2011.

[9]. A. Ookubo, E. Kanezaki and K. Ooi, “Solid-state chemistry of thermally induced yellow colouring in synthetic hydrous titanium oxide from TiCl3”, Journal of the Chemical Society, Faraday Transcation 6,206, 1990.

[10]. A. Ookubo, K. Ooi, T. Tomita and J. Mater, “New types of hydrous titanium oxides obtained by homogeneous precipitation from (titanium (III) chloride + urea) solutions”, Journal of Materials Science, Volume 24, Issue 10, pp 3599–3604 October 1989.

[11]. J. Ragai, K.S.W. Sing, J, “Ageing studies on some titania gels” Colloid Interface Sci. 101, 369. DOI: 10.1002/jctb.5040350509,1984.

[12]. Pedraza, F. and Vasquez, A., “Obtention of TiO2 rutile at room temperature through direct oxidation of TiCl3”, J. Phys. Chem. Solids, 60, 445-448 1999.

[13]. Digest Journal of Nanomaterials and Biostructures ,Vol. 11, No. 1, p. 81 -90 , January -March 2016.

[14]. Cassaignon, S., Koelsch, M. and Jolivet, J.P. (2007) From TiCl3 to TiO2 nanoparticles (anatase, brookite and rutile): Thermohydrolysis and oxidation in aqueous medium. Journal of Physics and Chemistry of Solids, 68, 695700.

[15]. A.Molea, V. Popescu, “The obtaining of titanium dioxide nanocrystalline powders. Optoelectronics and Advanced Materials-Rapid Communications”, Vol. 5, No. 3, p. 242 – 246, March 2011.

[16]. Shaofeng Yang, Yanhua Liu, Yupeng Guo, Jingzhe Zhao, Huifang Xu and Zichen Wang, “Preparation of rutile titania nanocrystals by liquid method at room temperature”, Materials Chemistry and Physics 77, 501–506, 2002.

[17]. S.Qiu, S.J.kalita, Materials Science and Engineering A 435-436, 327, 2006.

[18]. J. Ovenston and K. Yanagisawa, Chem. Mater. 11 2770,1999.

[19]. J. Ovenston and K. Yanagisawa, Chem. Mater. 11 2770,1999.

[20]. S. Cheng, S.-Y. Cheng, J. Catal. 122, 1, 1990.

[21]. J.B. Fernandes, A.R. Gandhe, Journal of Solid State Chemistry 178, 29532937, 2005.