The development of ternary-based TiO2-SnS2/GO-RGO composite material for photocatalytic H2 production under Solar light irradiation
Source abstract
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.
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Research context
OpenAlex topics: Advanced Photocatalysis Techniques · TiO2 Photocatalysis and Solar Cells · Gas Sensing Nanomaterials and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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