Carboxymethyl cellulose (CMC)/titanium dioxide (TiO2) was prepared using gamma irradiation at different doses. used as a matrix and TiO2 in contents added (0.25, 0.5, 1, 1.5 wt%) filler. The polymer composite films were irradiated doses of 5, 10 15 kGy 60Co γ-ray to form crosslinked network structure. described by diagnostic procedures including X-ray diffractometer, scanning electron microscop...

In this study, the elimination of methylene blue (MB) by adsorption on Black Titania (B-TiO2) in an aqueous solution dark room is investigated. Preparation B-TiO2 was carried out via reduction white TiO2 NaBH4 a tube furnace under inert gas atmosphere at 600°C. Characterization absorbent XRD, N2 adsorption-desorption, SEM mapping, photoluminescence, EDX analysis, Zeta potential, DLS, and FT-IR....

A flower-like TiO2-based composite (denoted as Zn-Ti-6) was prepared using a zinc oxide template for adsorption–photocatalytic degradation of high-chroma methylene blue. The reaction took place in an alkaline environment following hydrochloric acid treatment to remove the and form composite. Sodium hydroxide played both roles morphology-directing agent reactive etchant. possible mechanism forma...

ABSTRACT: In this project, a nano catalyst (TiO2) and ozone combined with each other and they were used for the removal of 4-nitrophenol (4NP) in industerial wastewater. The effect of some operational parameters such as initial pH (3-9), the concentration of pollutant (20-80 mg/L), and amount of TiO2 were investigated. In O3/TiO2 process, the anion radical  formed before the production of hydro...

In this study, the amount of photocatalytic degradation perchloroethylene in gas phase was investigated by a fixed bed continuous-flow tubular photoreactor. The photoreactor consists cylindrical glass tube, filled with beads coated nanoparticles TiO2, TiO2 doped carbon (TiO2-C). These were synthesized sol-gel method and deposited on using dip technique. X-ray diffraction (XRD), scanning electro...

TiO2 nanoparticles have emerged as a great photocatalyst to degrade organic contaminants in water; however, the dispersed water could be difficult recovered and potentially become contaminant. Herbicide like 2,4-dichlorophenoxyacetic acid (2,4-D) used agriculture usually ends up with large fraction remaining sediment, which may cause potential risk human health ecosystem. This study proposes gr...

The complex mechanisms of the bone cell-surface interactions are yet to be completely understood, and researchers continue to strive to uncover the fully optimized implant material for perfect osseointegration. A particularly fascinating area of research involves the study of nanostructured surfaces, which are believed to enhance osteogenic behavior, possibly due to the mimicry of components of...

The as-grown structure of electrochemically synthesized titania nanotube arrays is investigated by scanning electron microscope (SEM) in combination with transmission electron microscope (TEM) as well as X-ray diffraction (XRD). The analysis reveals a preferred growth direction of the nanotubes relative to the substrate surface and the well control on the nanotube arrays morphology. The crystal...

Background: Toll-like receptors (TLRs) form the major family of pattern recognition receptors (PRRs) which are involved in the innate immunity. They recognize pathogen-associated molecular patterns (PAMPs) in bacteria, viruses, fungi and parasites. In human, 10 members of this family have been identified so far. Among these TLRs, TLR3, 7, 8 and 9 designed to recognize nucleic acids and expresse...

In this thesis, three different model metal-oxide semiconductor systems will be discussed. First, the impact of hydroxyl vacancies, OHvac, on the geometry, electronic structure, and mechanical properties of single-walled aluminosilicate, (Al2SiO7H4)N, and aluminogermanate, (Al2GeO7H4)36, nanotubes is investigated. It is found that, with the exception of one OHvac localised on the outer wall of ...