Journal
MATERIALS
Volume 16, Issue 17, Pages -Publisher
MDPI
DOI: 10.3390/ma16175774
Keywords
tin(IV) sulphide; nanopowder; sonochemistry; Phenol Red; bandgap; photocatalysis
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The possibility of modifying SnS2 powder through sonochemical synthesis with the addition of different organic ligands was investigated. Results showed that modification with Phenol Red led to a significant shift in optical bandgap and better photocatalytic performance, while modification with Anthraquinone Violet was unsuccessful.
We investigate the possibility of modification of SnS2 powder through sonochemical synthesis with the addition of an organic ligand. For that purpose, two organic dyes are used, Phenol Red and Anthraquinone Violet. All obtained powders are characterized using XRD, SEM, EDX, FT-IR, and UV-Vis investigations. Synthesized samples showed composition and structural properties typical for sonochemically synthesized SnS2. However, investigation with the Tauc method revealed that SnS2 powder modified with Phenol Red exhibits a significant shift in value of optical bandgap to 2.56 eV, while unmodified SnS2 shows an optical bandgap value of 2.42 eV. The modification of SnS2 powder with Anthraquinone Violet was unsuccessful. The obtained nanopowders were utilized as photocatalysts in the process of Metanil Yellow degradation, revealing that SnS2 modified with Phenol Red shows about 23% better performance than the unmodified one. The mean sonochemical efficiency of the performed synthesis is also estimated as 9.35 mu g/W.
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