TiO2 photo catalyst was prepared in presence of nano SiO2 and Hydroxy Propyl Cellulose (HPC) by sol gel method with Titanium Tetra IsoproPoxide (TTIP) as titanium precursor. Additional effect of HPC in preparation of nano catalyst, and photo catalyst properties measured and characterized by FT-IR, FT-Raman and SEM. The catalyst size and structural properties of the film were determined by .-Ray...

One of the challenges in the design of microwave absorbers lies in tunable amplitude of dynamic permeability. In this work, we demonstrate that electric-field-induced magnetoelastic anisotropy in nano-granular film FeCoB-SiO2/PMN-PT (011) composites can be used to tune the amplitude of ferromagnetic resonance peak at room temperature. The FeCoB magnetic particles are separated from each other b...

Sulfonated Zn phthalocyanine, as a prospective photosensitizer in the photodynamic therapy of tumors, is investigated by means of Raman, infrared, and fluorescence spectroscopies. Conventional and surface-enhanced spectra from this photosensitizer are obtained and compared. Gold nano-islands attached to silica cores (Au-SiO2) are proposed as nanostructures providing plasmonically enhanced signa...

High resolution transmission electron microscopy (HRTEM) and Rutherford backscattering spectrometry (RBS) are used to study the ion induced effects in Au, Ag nanostructures grown on Si and thermally grown SiO2 substrates. Au and Ag films (∼ 2 nm) are prepared by thermal evaporation under high vacuum condition at room temperature (RT). These films were irradiated with MeV Au ions also at RT. Ver...

Nano-TiO2 (NT) and nano-SiO2 (NS) were separately added in the cement paste to investigate the rheological property of fresh mixtures and mechanical strength in hardened state. The effects of different dosages and types of nano-particles on the properties of cement paste were studied. The results indicated that the rheological behavior of the fresh cement paste coincides with the Modified Bingh...

In this study, a microfibrous carrier consisting of 3vol% of 8 m (dia.) glass fibers is utilized to entrap 45 vol% of 150-250 m (dia.) SiO2 support particulates. ZnO is then nano-dispersed onto the support by impregnation at the loading of 17 wt%. At equivalent bed volumes, ZnO/SiO2 entrapped materials provide 2-fold longer breakthrough times for H2S (with a 67% reduction in sorbent loading) co...

The double-layered microencapsulation technology has been used in many fields. In this study, the microencapsulated anthocyanin of Passiflora edulis shells (APESs) was prepared via complex coacervation using gelatin and gum Arabic as first wall materials (single-layered microcapsules (SMs)) containing nano-SiO2 second material (double-layered (DMs)/nano-SiO2) to enhance stability core material....

The Minnesota Nano Center’s Keller Hall facility includes an atomic layer deposition (ALD) machine that is capable of depositing uniform alumina (Al2O3), hafnium oxide (HfO2), silicon dioxide (SiO2), zinc oxide (ZnO), and titanium dioxide (TiO2). ALD works by building alternate layers on a film using two different precursor gases – one usually supplying the metallic atoms and water vapor (H2O) ...