Mesoporous Foam TiO2 Nanomaterials for Effective Hydrogen Production.
Hydrolysis of TiCl4 in a diether-functionalized imidazolium ionic liquid (IL), namely 1-methyl-3-[2-(2-methoxy(ethoxy)ethyl]imidazolium methane sulfonate (M(MEE)I⋅CH3 SO3 ), results in a heterostructured organic/inorganic and sponge-like porous TiO2 material. The thermal treatment (300 °C) followed by calcination (500 °C) affords highly porous TiO2 . The characterization of the obtained samples (with and without IL, before and after calcination) by XRD, SEM, and TEM reveals TiO2 anatase crystalline phases and irregular-shaped particles with different porous structures. These hierarchical-structured mesoporous TiO2 nanomaterials were employed as efficient photocatalysts in the water-splitting process, yielding up to 1304 μmol g(-1) on hydrogen production.
Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Jakkasandra(p), Kanakapura road, Bangalore 562112 (India).|Laboratory of Molecular Catalysis, UFRGS, Porto Alegre (Brazil).
Manjunath
M
Krishnappa
Laboratory of Molecular Catalysis, UFRGS, Porto Alegre (Brazil).
Virgínia S
VS
Souza
Department of Chemistry, SIT, Tumkur, Karnataka (India).
Nagaraju
N
Ganganagappa
Laboratory of Molecular Catalysis, UFRGS, Porto Alegre (Brazil).
Jackson D
JD
Scholten
Laboratory of Thin Films and Nanostructure Fabrication, Institute of Physics, UFRGS, Porto Alegre (Brazil).
Sérgio R
SR
Teixeira
Laboratory of Molecular Catalysis, UFRGS, Porto Alegre (Brazil). jairton.dupont@ufrgs.br.
Jairton
J
Dupont
Centre for Nano and Material Sciences, Jain University, Jain Global Campus, Jakkasandra(p), Kanakapura road, Bangalore 562112 (India). swadheshi26@gmail.com.|Department of Chemistry, Dayananda Sagar Academy of Technology & Management, Udaypura, Bangalore (India). swadheshi26@gmail.com.
Ramakrishnappa
R
Thippeswamy
TiO2 foam; hydrogen production; hydrolysis; ionic liquids; mesoporous