The fused silicate route to protoimogolite and imogolite

Individual dispersion of synthetic imogolite nanotubes via droplet evaporation

“…It is difficult to distinguish individual imogolite nanotubes from the BF image, but the characteristic (002), (004), (006) reflection rings in the selected area electron diffraction (SAED) pattern (Figure 1, inset) confirm that the nanotubes aggregate randomly on substrate and entangle densely. This observation is consistent with previous literature findings [5][6][7][8][9] . Figure 2 displays the morphology of imogolite nanotubes formed in droplet drying of 0.01 mg/mL solution and the corresponding SAED pattern.…”

“…Transmission electron microscopy (TEM) is often used to characterize the morphology of synthetic imogolite [5][6][7][8][9] . Typically TEM specimen is prepared by depositing a drop of imogolite solution on a film-coated copper grid and drying in air.…”

“…The SiOH groups are located on the inner surface of the nanotube, while AlOH groups are on the outer surface. The hydroxyl groups on the walls and rims make the nanotube hydrophilic [1][2][3][4] .Transmission electron microscopy (TEM) is often used to characterize the morphology of synthetic imogolite [5][6][7][8][9] . Typically TEM specimen is prepared by depositing a drop of imogolite solution on a film-coated copper grid and drying in air.…”

Synthesis and Characterization of Fe-Imogolite as an Oxidation Catalyst

“…Recently, imogolite has drawn a new attention as a new nano-material because of its unique nano-scale tubular structure similar to that of a single-walled carbon nanotube [3]. Studies on synthesis [4][5][6][7][8][9], mechanisms of formation [10], structural evolution [11,12], stability [13,14], electronic states [14,15] and application have been carried out. Proposed applications, such as a polymer composite [16,17], a fuel gas storage [18], an absorbent [19], an exchange material for heat pump system [20], a humidity-controlling material [6] and an antideweling material [6] have been discussed.…”

Adsorption of methylene blue on raw and MTZ/imogolite hybrid surfaces: Effect of concentration and calorimetric investigation

“…They have been also identified in pumice deposits, coating of primary particles, stream sediments, and soils derived from igneous and sedimentary rock sandstone. The chemical composition is given by (OH) 3 Al 2 O 3 SiOH, which also reflects the arrangement of the atoms on passing from the exterior of the sheet [4][5][6].…”