Superior dye adsorption capacity of amorphous WO3 sub-micrometer rods fabricated by glancing angle deposition

Abstract

Porous, amorphous tungsten trioxide (WO₃) sub-micrometer rods (SMRs), fabricated by the glancing angle deposition technique, were observed to exhibit superior methylene blue (MB) adsorption capability in aqueous solution due to their large specific surface area and active surface functionality. The adsorption of MB on the surface of WO₃ SMRs is well-described by Langmuir isotherm behavior.