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

International Conference and Exhibition in Advanced Materials and Microscopy 2017

材料科学;物理学

Araoyinbo, Alaba Oladeji^1 ; Bakri Abdullah, Mohd Mustafa Al^1 ; Anuar Mohd Salleh, Mohd Arif^2 ; Abdul Aziz, Nurul Nadia^1 ; Iskandar Azmi, Azwan^1

Faculty of Engineering Technology, Department of Mechanical Engineering Technology, Universiti Malaysia Perlis, Sungai Chuchuh, Padang Besar Utara, Perlis

02100, Malaysia^1

Center of Excellence Geopolymer and Green Materials (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia^2

关键词: Anatase phase;    Field emission scanning electron microscopes;    Morphology analysis;    rutile;    Titanium dioxide nanoparticles;    Titanium dioxide particles;    Titanium tetraisopropoxide;    Water as solvent;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/343/1/012011/pdf
DOI  :  10.1088/1757-899X/343/1/012011

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

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.