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Photocatalysis mediated by semiconductor nanoparticles is a promising technology for water remediation, which takes advantage of solar energy and nanomaterials properties, such as high surface area, effective charge carrier separation, etc. Particularly, metal chalcogenides are advantageous because of their energy band gap in the visible region. Several contaminants can be degraded or removed employing this technology. This chapter summarizes the advances in dyes degradation (as methyl orange, rhodamine B, and methylene blue) and metal reduction (Cr(VI) to Cr(III)) using tin-based compounds. The best degradation rates, and methods developed to improve photocatalytic efficiency, as the design of tin(IV) sulfide (SnS2) heterostructures, are discussed. Moreover, tin-based compounds have shown antimicrobial properties, which can be combined with their photocatalytic capacity. The progress concerning tin-based compound photocatalysis is bearing this nanotechnology as the next technology to be incorporated in water remediation systems. |
