Abstract:
Study on the synthesis and characterization nanosilica of
tetraethylorthosilicate (TEOS) with the addition of polyethylene glycol (PEG) using
sol-gel method has been done. Addition of PEG is used as a capping agent that
aims to avoid the occurrence of agglomeration. Sol solution was added with PEG6000
solution
with
concentration
of
10%
and
15%
(w
/
v).
The
mixed
solution
was
evaporation
with
a
temperature
of
700C
for
48
hours.
The
obtained
crystals
were
crushed
and calcination at 6000C for 2 hours. The resulting product was
characterized to determine the effect of PEG-6000 (10%, and 15% (w / v))
variation on the mean particle size, morphology and distrbusi of the resulting
nanosilica particles. The results that the typical absorption peak of SiO2 in all
samples was the siloxane group (Si-O-Si) which was the typical peak of TEOS.
The resulting morphology is amorph. The average particle size was 55.55 nm for
Ns control, Ns-PEG 10% (43.72 nm), and Ns-PEG 15% (52.40 nm) and. The best
average size distribution was Ns-PEG 10% with PdI value of 0, 73 which showed
good uniformity and particle size 3,4 d.nm.
