Hydrogen production using vinasse as sacrificial agent and Pt/TiO2 as photocatalyst under UV irradiation
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Vinasse, a dark-colored aqueous byproduct of bioethanol production, contains a variety of organic compounds and inorganic salt ions. In this study, vinasse was utilized as a sacrificial agent in the water-splitting reaction using Pt/TiO₂ as a photocatalyst under UV irradiation. The gaseous products generated were analyzed, revealing the formation of hydrogen (H₂) along with other gases, including CO₂, CH₄, CO, C₂H₆, C₂H₄, C₃H₈, and C₄H₁₀. When filtered vinasse was used as the sacrificial agent, H₂ and other gaseous products were produced solely through photolysis, even in the presence of the Pt/TiO₂ photocatalyst. Notably, H₂ production from the water-splitting reaction was enhanced when inorganic salt ions were removed from the vinasse and lower vinasse concentrations were employed in the reaction medium.
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SILVAINO, PATRICIA F.; FERREIRA, JOAO C.; CARMINATI, SAULO A.; VAZ, JORGE M.; SPINACE, ESTEVAM V. Hydrogen production using vinasse as sacrificial agent and Pt/TiO2 as photocatalyst under UV irradiation. Research Square, p. 1-14, 2024. DOI: 10.21203/rs.3.rs-5240232/v1. Disponível em: https://repositorio.ipen.br/handle/123456789/50023. Acesso em: 19 Jun 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.