Palladium Impregnation on Electrospun Carbon Fibers for Catalytic Reduction of Bromate in Water

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Barbosa, JRM (Autor) Outra; Sousa, JPS (Autor) Outra; Restivo, J (Autor) Outra; Manuel Fernando R Pereira (Autor) FEUP; O.S.G.P. Soares (Autor) FEUP

Revista

A Revista está pendente de validação pelos Serviços Administrativos.

Título: PROCESSES

Vol. 10

Página Final: 458

ISSN: 2227-9717

Indexação

ISI Web of Knowledge - 0 Citações

Scopus - 0 Citações

Outras Informações

ID Authenticus: P-00W-6FM

DOI: 10.3390/pr10030458

Abstract (EN): The remediation of bromate in water is a concern due to the reported health issues caused by its ingestion. Catalytic processes, wherein bromate is reduced to non-hazardous bromide, have been studied. In the present work, catalysts of 1% palladium supported in electrospun carbon fibers (Pd-CFs) using different methods for palladium incorporation were prepared. The textural properties, morphology, crystalline structure, and hydrogenation capacity by H-2 chemisorption analysis of the Pd-CFs catalysts were characterized. The catalytic tests were performed in a semi-batch reactor, and the obtained results showed different catalytic activity by each prepared Pd-CFs catalyst. The catalysts prepared by incipient wetness impregnation-1% Pd/CF1 and 1% Pd/CF2, using CFs obtained with electrospinning flow rates of 0.5 mL h(-1) and 2 mL h(-1), respectively-achieved total bromate reduction after 120 min of operation; however, 1% Pd/CF1 obtained total reduction as early as 30 min. Taking into account the catalyst properties, 1% Pd/CF1 showed a good catalytic activity due to CFs morphology obtained using a low electrospinning flow rate, while the Pd incorporation method allowed a high availability of active sites with hydrogenation properties for bromate reduction.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 18