Preparation of Amine-Functionalized TiO2/Carbon Photocatalyst by Arc Discharge in Liquid

International Conference on Advanced Materials for Better Future 2016

Arikawati, Erlina^1 ; Pranoto^1 ; Saraswati, Teguh Endah^1

Department of Chemistry, Faculty of Mathematic and Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A, Surakarta

57126, Indonesia^1

关键词: Arc-discharge method;    Characteristic peaks;    Dispersion of nano particles;    Fourier transform infrared;    Functionalized;    Spherical morphologies;    Stretching vibrations;    Surface characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/176/1/012045/pdf
DOI  :  10.1088/1757-899X/176/1/012045

来源: IOP

【 摘 要 】

Amine-functionalized titanium dioxide/carbon (TiO2/C) was prepared via the arc discharge method using graphite electrodes and a liquid medium consisting of 50% ethanol with the addition of urea. The arc discharge was conducted using a voltage of 20 to 40 V. X-ray diffraction (XRD) of prepared TiO2/C showed a pattern of definitive peaks at 25.32°, 26.61°, and 36.14°, which are the main characteristic peaks of TiO2, C graphite, and titanium carbide, respectively. The successful surface modification of TiO2/C synthesized in liquid ethanol/urea resulted in better dispersion of nanoparticles in water than TiO2/C synthesized in ethanol only. This surface characteristic was also confirmed via Fourier transform infrared (FTIR) spectra of TiO2/C synthesized in liquid ethanol/urea, which revealed C=O, C-N, C-O, and N-H stretching vibrations at 1600-1700, 1400-1100, 1200-1300, and 3300-3400 cm-1, respectively. Scanning electron microscopy (SEM) analysis showed that the nanocomposite had a spherical morphology. Transmission electron microscopy (TEM) analysis found that the structure of the nanocomposite was carbon coated with TiO2.