TY - JOUR
T1 - Additive manufacturing of hollow connected networks for solar photo-Fenton-like catalysis
AU - Gracia-Pinilla, Miguel Ángel
AU - Ramos-Delgado, Norma Alicia
AU - Rosero-Arias, Cristian
AU - Sanders, Remco
AU - Bartling, Stephan
AU - Winczewski, Jędrzej
AU - Gardeniers, Han
AU - Susarrey-Arce, Arturo
N1 - Publisher Copyright:
© 2024 RSC.
PY - 2024/12/1
Y1 - 2024/12/1
N2 - A 3D-printing approach is used to fabricate green bodies/precursor microarchitectures that, upon annealing, allow the fabrication of hierarchical 3D hollow microarchitectures (3DHMs). The 3DHMs are composed mainly of TiO2 and inorganic stabilizers that enable the production of inorganic cellular units upon thermal annealing at 650 °C. Morphological inspection reveals that the 3D architecture beams comprise TiO2 nanoparticles (NPs). The inner and outer diameters of the hollow beams are ∼80 μm and ∼150 μm, retained throughout the 3D hollow network. A proof-of-concept photo-Fenton reaction is assessed. The 3DHMs are impregnated with α-Fe2O3 NPs to evaluate solar photo-Fenton degradation of organic compounds, such as MB used as control and acetaminophen, an organic pollutant. The optical, structural, and chemical environment characteristics, alongside scavenger analysis, generate insights into the proposed solar photo-Fenton degradation reaction over TiO2 3DHMs loaded with α-Fe2O3. Our work demonstrates newly hollow printed microarchitecture with interconnected networks, which can help direct catalytic reactions.
AB - A 3D-printing approach is used to fabricate green bodies/precursor microarchitectures that, upon annealing, allow the fabrication of hierarchical 3D hollow microarchitectures (3DHMs). The 3DHMs are composed mainly of TiO2 and inorganic stabilizers that enable the production of inorganic cellular units upon thermal annealing at 650 °C. Morphological inspection reveals that the 3D architecture beams comprise TiO2 nanoparticles (NPs). The inner and outer diameters of the hollow beams are ∼80 μm and ∼150 μm, retained throughout the 3D hollow network. A proof-of-concept photo-Fenton reaction is assessed. The 3DHMs are impregnated with α-Fe2O3 NPs to evaluate solar photo-Fenton degradation of organic compounds, such as MB used as control and acetaminophen, an organic pollutant. The optical, structural, and chemical environment characteristics, alongside scavenger analysis, generate insights into the proposed solar photo-Fenton degradation reaction over TiO2 3DHMs loaded with α-Fe2O3. Our work demonstrates newly hollow printed microarchitecture with interconnected networks, which can help direct catalytic reactions.
UR - http://www.scopus.com/inward/record.url?scp=85207247955&partnerID=8YFLogxK
U2 - 10.1039/d4su00312h
DO - 10.1039/d4su00312h
M3 - Article
AN - SCOPUS:85207247955
SN - 2753-8125
VL - 2
SP - 3897
EP - 3908
JO - RSC Sustainability
JF - RSC Sustainability
IS - 12
ER -
