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    Phase study of titanium dioxide nanoparticle prepared via sol-gel process

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    Date
    2018-03
    Author
    Oladeji Araoyinbo, Alaba
    Mohd Mustafa Al Bakri, Abdullah
    Mohd Arif Anuar, Mohd Salleh
    Nurul Nadia, Abdul Aziz
    Azwan Iskandar, Azmi
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    Abstract
    In this study, titanium dioxide nanoparticles have been prepared via sol-gel process using titanium tetraisopropoxide as a precursor with hydrochloric acid as a catalyst, and ethanol with deionized water as solvents. The value of pH used is set to 3, 7 and 8. The sols obtained were dried at 100 °C for 1 hr and calcined at 350, 550, and 750 °C for 3 hrs to observe the phase transformation of titanium dioxide nanoparticle. The samples were characterized by x-ray diffraction and field emission scanning electron microscope. The morphology analysis is obtained from field emission scanning electron microscope. The phase transformation was investigated by x-ray diffraction. It was found that the pH of the solution affect the agglomeration of titanium dioxide particle. The x-ray diffraction pattern of titanium dioxide shows the anatase phase most abundant at temperature of 350 °C. At temperature of 550 °C the anatase and rutile phase were present. At temperature of 750 °C the rutile phase was the most abundant for pH 3, 7 and 8. It was confirmed that at higher temperature the rutile phase which is the stable phase are mostly present.
    URI
    http://dspace.unimap.edu.my:80/xmlui/handle/123456789/74611
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    • Mohd Mustafa Al Bakri Abdullah, Prof. Dr. [277]
    • Mohd Arif Anuar Mohd Salleh, Associate Professor Dr. Ir. [43]

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