RT info:eu-repo/semantics/article
T1 Influence of mesoporous iron based nanoparticles on Chlorella sorokiniana metabolism during photosynthetic biogas upgrading
A1 Vargas Estrada, Laura
A1 Hoyos, Edwin G.
A1 Sebastian, Pathiyamattom
A1 Muñoz Torre, Raúl
K1 Biogas
K1 Biogás
K1 Carbon dioxide
K1 Dióxido de carbono
K1 Iron nanoparticles
K1 Nanopartículas de hierro
K1 Microalgae
K1 Microalgas
AB Three different mesoporous iron based nanoparticles (NPs) were added to Chlorella sorokiniana batch cultures devoted to photosynthetic biogas upgrading to enhance CO2 biofixation: Fe2O3, carbon coated zero valent iron NPs containing 7.26 % (wt%) of iron (CALPECH NPs) and carbon coated zero valent iron NPs containing 31.38 % (wt%) of iron (SMALLOPS NPS). The three types of NPs enhanced CO2 adsorption and therefore biogas upgrading in tests conducted in 1.2 L enclosed photobioreactors. However, the addition of 70 mg L−1 of CALPECH NPs resulted in a 2-fold enhancement in the microalgae productivity, and a carbohydrate and lipid content increase by 56 % and 25 %, respectively compared to the control assay. Under UV and visible light irradiation the addition of Fe2O3 NPs resulted in a 5.3-times fold enhancement in carbohydrate content when 70 mg L−1 was added. Similarly, the addition of 20 mg L−1 of SMALLOPS NPs increased the lipid content by 11 % under UV irradiation. Interestingly, CALPECH NPs did not significantly influence C. sorokiniana composition, suggesting that these particular NPs can act as UV scavengers. Therefore, the addition of mesoporous nanoparticles could improve CO2 fixation and microalgae productivity during photosynthetic biogas upgrading.
PB Elsevier
SN 0016-2361
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/56737
UL https://uvadoc.uva.es/handle/10324/56737
LA eng
NO Fuel, 2023, vol. 333, part 1, 126362
NO Producción Científica
DS UVaDOC
RD 27-jul-2024