Composite magnetic catalysts containing different amounts of sulfated titania (33–50 wt %) have been prepared by means high energy ball-milling between TiO2 and NiFe2O4. The characterized with N2 adsorption/desorption isotherms, XRD, temperature programmed oxidation (TPO) vibrating sample magnetometer (VSM). catalytic activity was measured in the reaction aniline 4-phenylbutyric acid continuous...

We present a multiscale computational approach for the first-principles study of bio-nano interactions. Using titanium dioxide as case study, we evaluate affinity titania nanoparticles to water and biomolecules through atomistic coarse-grained techniques.

Structural analysis of sulfated oligosaccharides from -carrageenan of up to ten residues (MW 2 kDa) was successfully carried out by positive mode nano-ESI-FTICR-MS together with MS/MS using sustained off-resonance irradiation-collision induced dissociation (SORI-CID). Glycosidic bond cleavage reactions via the Band Y-types of fragmentation were observed and enabled complete sequencing of the ol...

New modified acidic catalysts were prepared from the treatment of silica, titania and silica prepared from hydrolyzed tetraethyl orthosilicate (TEOS) with sulfuric and phosphoric acid. The sulfated and phosphated silica synthesized from TEOS were calcined at 450 and 650 ◦C. These catalysts were characterized by X-ray diffraction (XRD), Fourier-transform infrared spectroscopy (FTIR), transmissio...

Advanced additive manufacturing techniques such as electron beam melting (EBM), can produce highly porous structures that resemble the mechanical properties and structure of native bone. However, for orthopaedic applications, such as joint prostheses or bone substitution, the surface must also be bio-functionalized to promote bone growth. In the current work, EBM porous Ti6Al4V alloy was expose...

In the esterification-transesterification method, a catalyst increases reaction rate to produce biofuel (biodiesel). This study investigated use of solid consisting green nano-CaO as support modified by KOH solution and sulfated TiO2 for converting waste frying oil (WFO) into biodiesel in single-step reaction. With prepared from eggshell, nanocomposite CaO/K-sulfated was synthesized physical mi...

Abstract The photocatalytic process of phenol oxidation and Cr(VI) reduction in the presence nano-silica modified titania was carried out. activity composites tested using two different light sources. photocatalysts with 10% nanosilica showed highest activity. calcination temperature (200–800 o C) significantly determined sensitivity obtained materials to source used. Photocatalysts alternately...

A novel use of Titania nanoparticles as agents in the nano interface interaction between a beneficial plant growth promoting bacterium (Bacillus amyloliquefaciens UCMB5113) and oilseed rape plants (Brassica napus) for protection against the fungal pathogen Alternaria brassicae is presented. Two different TiO2 nanoparticle material were produced by the Sol-Gel approach, one using the patented Ca...