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

• Type: Article in International Scientific Journal
• Date: 2022

Authors

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

Journal

The Journal is awaiting validation by the Administrative Services.

Title: PROCESSES

Vol. 10

Final page: 458

ISSN: 2227-9717

Indexing

ISI Web of Knowledge - 0 Citations

Scopus - 0 Citations

Other information

Authenticus ID: 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.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 18