Synthesis, characterization and investigation of photocatalytic activity of nano-titania from natural ilmenite with graphite for cigarette smoke degradation

Titanium dioxide (TiO2) and TiO2 recycled graphite (TiO2/G) have been successfully synthesized by using synthetic for measuring the degradation time of the cigarette smoke under the visible light irradiation. In this work, the synthetic was derived from natural Malaysian Ilmenite’s waste to produce a low cost of TiO2 via environmental friendly process. The prepared samples were then analyzed using X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and Energy Dispersive X-Ray Fluorescence (EDXRF) to study their structural phase composition, functional group, and elemental composition respectively. The surface morphology and the size of the particles were studied using Field Emission Scanning Electron Microscopy (FESEM) and Particle Size Analyzer (PSA), respectively. The functionality of the prepared in terms of activity was analyzed by degradation of cigarette smoke under the exposure to the visible light. The UV–Vis Spectroscopy (UV–VIS) results revealed that the energy band gap of modified 2/G decreases to 2.90  compared with the commercial 2, 3.06. This is capable enough to TiO2/G degrade the smoke under the visible light irradiation for 2 min faster compared to types of 2. This material has the ability to purify the toxins in the air.

Full Text: https://doi.org/10.1016/j.rinp.2018.08.032

By Natrah