Abstract
Production of alternative fuels, such as hydrogen, by harvesting abundant Solar energy is under continuous scientific development and improvement. Accordingly, in this work TiO2-based composite materials with different wt% of SnS2 and GO-RGO were synthetized employing in-situ solvothermal method, and their activity for H2 evolution under Solar irradiation was investigated. Through the synthesis, GO was considerably reduced forming RGO. Prior testing the activity, a comprehensive characterization to elucidate structural, morphological and semiconducting properties of as-prepared materials was performed. Photocatalytic hydrogen production experiments were conducted in with sacrificial agent (TEOA). Photocatalytic tests have shown that a smaller mass ratio of SnS2 (5 wt%), and a minimal mass ratio of GO-RGO (0.01 wt%), provided the highest hydrogen generation rate of 61.5 μmol/(hgcatal) among tested materials. Hence, the higher GO-RGO material incorporation into the composite presumably blocked the photocatalytic active surface preventing intrusion of Solar irradiation necessary for the activation of material.
Published Version
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