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Projeto de investigação
Solar PolygEneration Collector for combined heaT, poweR, hydrogen fUel and wastewater treatMent
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Development of nanostructured sustainable photocatalysts for industrial wastewater remediation with co-generation of H2
Publication . Esteves, M. Alexandra; Brites, Maria João de Sousa; Capelo, Anabela; Pasquini, Luca; Mazzaro, Raffaello
ABSTRACT: The SPECTRUM project aims to design, develop, prototype, and test lab-scale solar collectors that effectively utilize the entire solar spectrum to cogenerate heat, electricity and hydrogen using industrial wastewater. This report presents the results of the activities developed in Task 1.2 Development of nanostructured low cost and sustainable photocatalysts of SPECTRUM’s Work Package 1, Optimization of the photocatalytic process of wastewater treatment and hydrogen generation. One of the Specific Objectives (SO1) of the SPECTRUM project is to develop low cost and sustainable nanostructured photocatalysts for synergetic pollutants degradation and H2 generation. With this goal, nanostructured titanium dioxide (TiO₂) photocatalysts were developed using copper as an efficient and economical co-catalyst, suitable for large-scale hydrogen production systems. Two series of copper-decorated TiO2 photocatalysts were synthesized, one based on TiO2 nanoparticles (NP) (Series I) and another based on TiO2 nanotubes (NT) (Series II).
Optimised photocatalytic H2 production using nanostructured low cost and sustainable photocatalysts
Publication . Esteves, M. Alexandra; Brites, Maria João de Sousa; Capelo, Anabela; Pinheiro, Carla I.C.; Lanham, Ana; Ramos, Diana; Pedro, Guilherme
ABSTRACT: The SPECTRUM project aims to design, develop, prototype, and test lab-scale solar collectors that effectively utilise the entire solar spectrum to cogenerate heat, electricity and hydrogen. SPECTRUM Work package 1 is dedicated to the optimization of the photocatalytic process of industrial wastewater (IWW) treatment and hydrogen generation and is divided in four tasks. This deliverable D1.3 provides an account of the activities carried out in Task 1.3, “Optimization of Photocatalytic H₂ Production Process at Laboratory Scale,” as well as the results achieved during its duration. The photocatalysts developed in Task 1.2, “Development of nanostructured low cost and sustainable photocatalyst”, were tested for hydrogen production in a slurry type batch reactor using UV radiation as light source. In these preliminary assays, synthetic aqueous solutions containing ethanol or glycerol as sacrificial agent (SA) were used to test the performance of a first series of copper decorated TiO2 nanoparticles (NP) photocatalysts. A comprehensive series of experiments enabled the selection of the most effective photocatalyst, Cu-decorated TiO2 nanoparticles with 6 weight % of copper (Cu/TNP-6). This photocatalyst was then utilized with aqueous solutions of ethanol or glycerol to optimize three key operational parameters — pH, photocatalyst concentration, and sacrificial agent concentration. The same methodology was subsequently applied to evaluate the performance of two additional copper-based photocatalyst sets developed in Task 1.2: copper-decorated TiO₂ nanotubes and copper/biochar-decorated TiO₂ nanoparticles.
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Entidade financiadora
European Commission
Programa de financiamento
HORIZON Research and Innovation Actions
Número da atribuição
101172891