Sol-gel Preparation of Silane-based Titania Hybrid Composite Thin Film

In this study, epoxy and methacrylate-based silane coupling agents are used

together with titanium oxide to form a hybrid coating system on the glass surface.

In the experimental study, an organic–inorganic molecular hybrid compound was

prepared by sol-gel method. First glasses were cleaned by traditional piranha

solution (3:1 H2SO4: H2O2) to remove contaminants. In order to improve the

adhesion of hybrid coatings on glass substrates silanization treatment was applied.

Silanization solution was prepared by dissolving 1 g 3-aminopropylTriethoxysilane (3-APTES) in 100 mL 2-propanol. Glass substrates were coated

with this solution using a dip-coater. Silanes (3-

Glycidoxypropyltrimethoxysilane, GLYMO and 3-(trimethoxysilyl)

propylmethacrylate, TMSPM or MEMO) were mixed deionized water and 2-

propanol. Titanium oxide was added and mixed the silane solutions for 1 hour.

The resultant solution was coated on a glass sheet by dip coater with heater. After

evaporation of solvents, coated samples were characterized by Fourier Transform

Infrared Spectrophotometer (FTIR), Scanning Electron Microscope with Energy

Dispersive X-ray Spectroscopy (SEM-EDX) and Contact Angle Goniometer.