Abstract: A synthesis of
TiO2-chitosan composite has been carried out
by the sol-gel method using a variety of acetic acid concentrations (2 –
5 %) . The composition of chitosan on TiO2 was found to be 10 untill 50 %. The
role of chitosan was as a dopant hybridized to the TiO2 through its hydroxyl
and amine groups. Composite of TiO2-Chitosan obtained was characterized with
Fourier Transform Infra Red (FTIR), Thermal Gravimetry Analysis (TGA), X-Ray
Difraction (XRD), Scanning Electron Microscope (SEM) and Energy Dispersive
X-Ray (EDX). FTIR analysis showed an absorption of O-Ti-O in a fingerprint area of 677-684
cm-1. TGA measurement confirm a mass reduction at 300 oC of the
composite by 57 %. XRD pattern indicated that TiO2-Chitosan compound was
amorphous. From SEM photoghraphs can be seen that the composite possed porous
and hollow structure. Meanwhile, from EDX calculation can be concluded that
such composite containing 5 % of acetic acid and 20 % of chitosan showed highly
dopant substituted TiO2.
Keywords: modification, TiO2, chitosan,
synthetic, composite
Penulis: Restu Harly Pebriani,
Yetria Rilda, dan Zulhadjri
Kode Jurnal: jpkimiadd120016
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