%0 Journal Article
%@ Online: 1757-899X
%A Nizar, Umar Kalmar
%A Hidayatul, J.
%A Sundari, Putri Dwi
%A B. Bahrizal, B.
%A Amran, Ali
%A Putra, Amali
%A Latisma DJ, DJ
%A Dewata, Indang
%A FMIPA UNP,
%A FMIPA UNP,
%A Department of Mechanical Engineering, Universitas Mercu Buana, Jakarta,
%A FMIPA UNP,
%A FMIPA UNP,
%A FMIPA UNP,
%A FMIPA UNP,
%A FMIPA UNP,
%F repounp:38638
%I IOP Publishing Ltd
%J IOP Conference Series: Materials Science and Engineering
%K Silica-titania Catalyst, Titanium Tetrahedral Coordination, Biodiesel, Physical Properties, Solid-state Method
%P 1-8
%T The Effect of Titanium Tetrahedral Coordination of Silica- Titania Catalyst on the Physical Properties of Biodiesel
%U https://repository.unp.ac.id/id/eprint/38638/
%V 335
%X This study investigates the correlation of the number of titanium tetrahedral coordination and biodiesel production. The solid-state method has been used to synthesis of silica-titania catalyst for biodiesel production, which the precursors, i.e. silica and titania commercials were heated in the temperature range of 450 - 550°C. The characterization of the prepared silica-titania has been studied by FTIR and DR UV-Vis in order to identify and calculate the presence of titanium tetrahedral coordination in silica-titania catalyst. A very small peak at around 950 cm-1 indicated the presence of titanium tetrahedral coordination through Si–O–Ti bonds. Deconvolution of DR UV-Vis spectra showed the coordination of titanium in silica-titania is more octahedral. However, the number of titanium tetrahedral coordination of the prepared silica-titania is found higher than that of TiO2 commercial. The increasing of titanium tetrahedral fraction in silica-titania affects the physical properties of biodiesel in terms of boiling point, viscosity and density, which is produced by the reaction of methanol and palm oil.