RT Journal Article
T1 Nitrogen doped Carbon Dots as a Photocatalyst based on Biomass. A Life Cycle Assessment Analysis
A1 Rodríguez Carballo, Gabriela
A1 Moreno-Tost, Ramón
A1 Fernandes, Sónia
A1 Esteves Da Silva, Joaquim C.G.
A1 Pinto da Silva, Luís
A1 Castro-Galiano, Eulogio
A1 Algarra, Manuel
K1 Catalizadores
K1 Biomasa
K1 Nanopartículas
K1 Fotocatálisis
AB The effectiveness of various transition metal phosphate-based acid catalysts, including vanadiumand niobium, in the hydrothermal synthesis of carbon dots (CDs), has been assessed. Two sourcesof carbohydrates were employed for this: commercial xylose and liquor of xylose produced byprocessing olive pits. Catalysts were identified using the NH3-TPD, DTA/TG, XRD, and XPStechniques. The reaction was conducted for 4 hours at a temperature of 180 °C. The existence ofsuch nanoparticles, regardless of the carbohydrate source, was confirmed by an analysis of thefeatures and characteristics of CDs nanoparticles. N-doped CDs with increased fluorescence werealso created at the same time using a similar hydrothermal technique, and their photocatalyticactivity was investigated. A Life Cycle Assessment (LCA) analysis was conducted for bothsyntheses with the goal of comparing the environmental effects of the synthesis from commercialxylose to the synthesis from biomass. It was revealed that, although energy is the primary driverof both synthesis pathways' effect categories, the fundamental variations that seem to determinetheir relative sustainability are connected to the nature of the carbon precursor. Regarding thelatter, it is determined that electricity has the greatest environmental impact
PB Elsevier
YR 2023
FD 2023
LK https://hdl.handle.net/10630/40621
UL https://hdl.handle.net/10630/40621
LA eng
NO Journal of Cleaner Production 423 (2023) 138728
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 19 ene 2026