Abstract
Transparent, superhydrophilic surfaces have a wide range of applications, especially for self-cleaning coatings in solar panels. Herein, reduced graphene oxide decorated titanium dioxide (rGO-TiO2) nanocomposites (NCs) were synthesized by in-situ hydrothermal method. The X-ray diffraction and Raman spectroscopy confirmed the formation of anatase-brookite mixed phases TiO2 and rGO content eased the anatase-brookite phase transformation. The NCs exhibit the transmittance of ~79 % in the visible range and the lowest band gap of 3.03 eV. The water contact angle result reveals that the thin films with rGO-TiO2 NCs became superhydrophilic (<10°) under 60 min of sunlight exposure.
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