The Effect of Temperature to CTAB-assisted Solvothermal Synthesis of TiO2

9th Annual Basic Science International Conference 2019

自然科学（总论）

Anwari, N.S.^1 ; Aini, N.^1 ; Hardian, A.^2 ; Suendo, V.^3^4 ; Prasetyo, A.^1

Department of Chemistry, Faculty of Science and Technology, Universitas Islam Negeri Maulana Malik Ibrahim, Indonesia^1

Department of Chemistry, Faculty of Science and Informatics, Jenderal Achmad Yani University, Indonesia^2

Inorganic and Physical Chemistry Research Group, Faculty Mathematics and Natural Science, Indonesia^3

Research Center for Nanoscience and Nanotechnology, Institut Teknologi Bandung, Indonesia^4

关键词: Cetyltrimethylammonium bromide;    CTAB;    Homogeneous distribution;    Scanning electron microscopy image;    Solvothermal;    Structure directing agents;    Surface area;    TiO2;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/546/4/042003/pdf
DOI  :  10.1088/1757-899X/546/4/042003

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

Surface area has significant impact on the photocatalytic activity of semiconductor material. It was found that templates as structure directing agent played a role in regulating the surface area of materials. The most widely used as template is cetyltrimethylammonium bromide (CTAB) surfactant. In this research, TiO2 was prepared by solvothermal method used temperature variations of 150, 175, 200, and 225 °C. The X-ray powder diffraction (XRD) data indicated that anatase phase of TiO2 was successfully obtained with I41/amd space group and as the synthesis temperature was increased, the crystallinity increases. The spectra infrared spectroscopy (IR) showed the broad peak situated at wavenumber 400-800 cm-1 which was assigned to the stretching Ti-O vibration. Raman spectra showed peaks at wavenumber 145, 197, 397, 516, and 639 cm-1 which were attributed to vibration modes of anatase. The scanning electron microscopy (SEM) image demonstrated the morphology particle has homogeneous distribution and irregular shape. Furthermore, Brunauer-Emmett-Teller (BET) specific surface area showed the CTAB-assisted TiO2 which was synthesized at 175 °C has the highest surface area of 227.043 m2/g in this research among the others.