Facile Synthesis of Titania Monolith and the Investigation of its Photocatalytic Activity

Abstract

In this research, we have synthesized pure monolithic titania using nanocasting technology with hydrophilic urea formaldehyde resin as a template. Powder X-ray diffraction and scanning electron microscopy results have shown that the titania monolith has interwoven skeletons and textural pores, and the crystalline is anatase. The prepared titania monolith was employed as a photocatalyst under UV light by using methyl orange (MO) as a target. Photocatalytic results showed that concentration of the MO solution decreased nearly 87% after 60 min of degradation, and after four repeated cycles of reuse, photocatalytic activity of the regenerated catalyst showed no significant change.

Nano-Doped Monolithic Materials for Molecular Separation

“…Despite these unique features, the challenge in incorporating titania into monoliths as a chromatographic adsorbent include their fast hydrolysis/condensation kinetics, denaturing of proteins from isopropyl alcohol byproducts, and mechanisms to control and engineer pore formation [142,143]. A technique to overcome these setbacks was attempted by Chen, Yi, Brennan, and Brook [142] through the introduction of glycerol and high molecular weight poly(ethylene oxide) to control the kinetic reactions, phase separations, and pore formation of titania monoliths.…”

Tuning the composition of porous resin-templated TiO2 macrobeads for optimized photocatalytic performance

“…A major drawback in the application of nanomaterials in liquid-phase reactions is the difficulty in recovering the particulate nanocatalysts, which usually requires highspeed centrifugation and results in material loss during transfers. TiO2 in the form of monoliths have been prepared by templating methods to overcome this issue [13][14][15][16].…”