Photocatalytic of Thiophene Desulfurization

Thiophene, found in the fuels is a heterocyclic five-membered ring consisting of sulfur as the heteroatom, with two pairs of electrons at the S atom along with a pair in the six-electron π-system and the others in the ring. Thiophene give negative impacts on living things and also the atmosphere. The presence of sulfur in fuels will lead to the emission of sulfur dioxide into the atmosphere and lead to atmospheric pollution such as acid rain. Thiophene is difficult to remove by using conventional desulfurization processes such as hydro-sulfurization (HDS). Thus, the photocatalytic process is the best alternative method available to degrade thiophene. The photocatalytic process only requires a minimal quantity of catalyst and the by product is almost zero or less harmful to the environment and living things. The process efficiency depends strongly on the chosen photocatalyst. ZnO/KCC provides great potential as the photocatalyst. Hence, this review paper focus on photocatalytic thiophene desulfurization using ZnO/KCC as the photocatalyst

Role of spheroids fibrous silica in ZnO nanoparticles via precipitation method

Zinc oxide (ZnO) nanoparticles in the presence of fibrous silica (KCC-1) were produced via simple and green precipitation method. The nanoparticles properties were characterised with Fourier Transform Infrared Spectroscopy (FTIR) and Field Emission Scanning electron microscopy (FESEM). It is believed that the preparation method influences on the characterization result. Based on nanoparticles characterisation, the properties of the chemical bond and nature of ZnO/KCC-1 and KCC-1 photocatalyst were analyzed by using Fourier Transform Infrared Spectroscopy (FTIR) that produced an infrared absorption spectrum. While, the morphology, dimension and particle surface area were observed by using Field Emission Scanning electron microscopy (FESEM)