RT info:eu-repo/semantics/article
T1 Elucidating the role of nanoparticles on photosynthetic biogas upgrading: Influence of biogas type, nanoparticle concentration and light source
A1 Vargas Estrada, Laura
A1 Hoyos Durán, Edwin Gilbert
A1 Sebastian, P. J.
A1 Muñoz Torre, Raúl
K1 Biogas
K1 Biogás
K1 Biomass
K1 Biomasa
K1 Nanoparticles
K1 Nanopartículas
K1 Microalgae
K1 Microalgas
AB Three different nanoparticles, namely Fe2O3, carbon coated zero valent iron (CACOI) and SiO2, were added to a mixed microalgae culture in order to improve photosynthetic biogas upgrading. Fe2O3 and CACOI nanoparticles at 10 mg/L supported higher CO2 consumptions compared to their respective controls. The addition of Fe2O3 nanoparticles at 70 mg/L resulted in a 38 % enhanced biomass productivity, and 20 % higher CO2 consumption but delayed exponential growth. The CACOI nanoparticles at 70 mg/L resulted in a shorter lag phase, enhanced CO2 consumption by 13 %, and carbohydrate content enhancement by 64 %, while the addition of SiO2 nanoparticles at this concentration induced an enhanced lipid and carbohydrates production by 47 % and 68 %, respectively. Interestingly, UV light exposure reduced the beneficial effects of nanoparticles, although CACOI nanoparticles still supported a shorter lag phase and higher carbohydrates production at 70 mg/L. In brief, CACOI nanoparticles hold an untapped potential to promote the metabolism of microalgae during photosynthetic biogas upgrading.
PB Elsevier
SN 2211-9264
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/57141
UL https://uvadoc.uva.es/handle/10324/57141
LA eng
NO Algal Research, 2022, vol. 68, 102899
NO Producción Científica
DS UVaDOC
RD 15-ago-2024