Silica nanostructure was synthesized using sol-gel
method
For synthesis
the tetraethyl orthosilicate, TEOS was added to
∗corresponding author; e-mail:
noorazlina_hassan@iium.edu.my
acetic acid, CH3COOH with distilled water as the solven
The aging time in the experiments was set to 2,
4 and 6 hours.