Titanate and titania nanostructures and nanostructure assemblies, and methods of making same

摘要

The invention relates to nanomaterials and assemblies including, a micrometer-scale spherical aggregate comprising: a plurality of one-dimensional nanostructures comprising titanium and oxygen, wherein the one-dimensional nanostructures radiate from a hollow central core thereby forming a spherical aggregate.

主权项

1. A method of making anatase nanomaterials comprising:
(a) mixing titania powder and an alkali metal hydroxide solution to form a mixture; (b) heating the mixture thereby forming a precipitate comprising one-dimensional alkali metal hydrogen titanate nanomaterials, (c) neutralizing the alkali metal hydrogen titanate nanomaterials thereby forming hydrogen titanate nanomaterials; and (d) hydrothermally processing the formed hydrogen titanate nanomaterials thereby forming anatase nanomaterials, wherein hydrothermal processing comprises dispersing the hydrogen titanate nanomaterials in water under neutral conditions, and heating at about 100° C. to about 200° C.