A comparative study of the structure and morphology of graphene oxide films on glass and aluminum supports by using dip coating
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Abstract
In this work, graphene oxide (GO) coating was deposited on glass and aluminum substrates via dip coating. The structural appearance of the coating layer deposited on glass and aluminum substrates was demonstrated using scanning electron microscopy and atomic force microscopy (AFM). Images of the coated substrates were analyzed using ImageJ software. Results show that the probability of distribution can be determined from a histogram of heights measured by AFM. The surface roughness rate of the coated glass and aluminum substrates were compared. In addition, the image software can be successfully used to evaluate starch granule size and shape. The thicknesses of the deposited film were about 0.09 and 0.07 µm for GO coating on aluminum and glass substrates, respectively. The weight loss of the substrates coated with different concentrations of sodium chloride solution under the influence of different times was examined. Results showed that the corrosion rates using the weight loss method for aluminum samples were less than the corrosion rates of coatings on glass substrates.
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