Abstract
The Al2O3 nano-coating was obtained by the decomposing of aluminum resinate (Al resinate) on the glass surfaces heated at 650°C for 30 min. The Al resinate is a product of the chemical reaction between sodium soap and aluminum chloride solution (AlCl3 solution). The sodium soap was obtained from the chemical reaction of coconut oil and the solution of sodium hydroxide (NaOH solution). The nano-characteristics of the coating on the glass surface were investigated by the transmission electron microscope and atomic force microscope techniques. The “lotus effect” was created by small Al2O3 spikes with the average height of about 4.20 nm on the glass surface. The glass surface has changed from hydrophilic to hydrophobic, and the coating did not affect the average transmission intensity within the visible light wavelength range (370–780 nm).
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