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Green Synthesis of Copper Nanoparticles Using Sargassum spp. for Electrochemical Reduction of CO2
SANDRA JAZMIN FIGUEROA RAMIREZ
Beatriz Escobar Morales
DIEGO ALONSO PANTOJA VELUETA
Juan Manuel Sierra Grajeda
Ivonne Liliana Alonso Lemus
CLAUDIA ALEJANDRA AGUILAR UCAN
Acceso Abierto
Atribución-NoComercial-SinDerivadas
10.1002/open.202300190
BIOCARBON
COPPER NANOPARTICLES
SARGASSUM SPP.
This study presents a green method of producing copper nanoparticles (CuNPs) using aqueous extracts from Sargassum spp. as reducing, stabilizing, and capping agents. The CuNPs created using this algae-based method are not hazardous, they are eco-friendly, and less toxic than their chemically synthesized counterparts. The XRD characterization of the CuNPs revealed the presence of Cu and CuO, with a crystallite size ranging from 13 to 17 nm. Following this, the CuNPs were supported onto a carbon substrate, also derived from Sargassum spp. (biochar CSKPH). The CuNPs in biochar (CuNPs-CSKPH) did not appear in the XRD diffractograms, but the SEM-EDS results showed that they accounted for 36 % of the copper weight. The voltamperometric study of CuNps-CSKPH in acid media validated the presence of Cu and the amount was determined to be 2.58 μg. The catalytic activity of CuNPs-CSKPH was analyzed for the electrochemical reduction of CO2. The use of Sargassum spp. has great potential to tackle two environmental problems simultaneously, by using it as raw material for the synthesis of activated biochar as support, as well as the synthesis of CuNPs, and secondly, by using it as a sustainable material for the electrochemical conversion of CO2. © 2023 The Authors. ChemistryOpen published by Wiley-VCH GmbH.
2024
Artículo
ChemistryOpen, 13(5), e202300190, 2024.
Inglés
ENERGÍA
Versión publicada
publishedVersion - Versión publicada
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