Sigma-Aldrich Titanium(IV) Oxide Nanopowder 21 Nm P&

Our titanium(IV) oxide nanopowder is a fine white powder composed of titanium dioxide nanoparticles with an average particle size of 21 nm, resulting in a high surface area of 35-65 M²/g. Two main physico-chemically distinct polymorphs of TiO₂ are anatase and rutile. Anatase has a higher photocatalytic activity than rutile but is thermodynamically less stable.[1]

TiO₂ nanoparticles were used to study the photocatalytic hexane vapor degradation.[2] It has been used as a sorbent for arsenic removal.[3] TiO₂ nanoparticles are suitable for remediation of antiseptic components in wastewater by photocatalysis.[4] It has also been used to study adsorption of DNA oligonucleotides by titanium dioxide nanoparticles.[5]