B2O–SiO2 borosilicate glasses in a specific composition range show spinodal-type phase separation by heat-treatment at around those glass transition temperatures, and porous or glass-ceramics can be easily obtained via an acid treatment after the separation. We have studied preparation conditions of SrTiO3-precipitated for photocatalyst hydrogen generation using solar energy. It was found that ...

Chlorine (Cl) is a constituent of certain types of nuclear wastes and its presence can affect the physical and chemical properties of silicate melts and glasses developed for the immobilization of such wastes. Cl K-edge X-ray absorption spectra (XAS) were collected and analyzed to characterize the unknown Cl environments in borosilicate waste glass formulations, ranging in Cl-content from 0.23 ...

Bioactive glass (BG) and glass-ceramics (GC) have been employed for bone treatment tissue engineering applications. glasses/bioglasses can be considered promising materials bone-regenerative scaffolds fabrication, owing to the adaptable properties that make them appropriately designed regarding their composition. The essential of bioactive glasses, enabling applied in tissue, explained as poten...

The use of atomic force microscopy (AFM) and x-ray photoelectron spectroscopy (XPS) is described to characterize the inner surfaces of pharmaceutical vials. The two type I borosilicate glasses included in this study slightly differ in their amounts of alkaline oxides. The topography and chemistry of the inner surfaces of vials are predominantly caused by the forming process. A structural and ch...

Glasses containing metallic nanoparticles are promising materials for technological applications in optics and photonics. Although several methods are available to generate nanoparticles in glass, only femtosecond lasers allow controlling it three-dimensionally. In this direction, the present work investigates the generation of copper nanoparticles on the surface and in the bulk of a borosilica...

Technetium-99 (Tc) and iodine-129 (I) are two long-lived fission products of high volatility, which makes their study in glass structure challenging. Both technetium and iodine have broad ranging multivalent chemistry and complex reactivity dependent on redox conditions; technetium and iodine redox may vary from Tc to Tc and from I to I. Relatively few studies have been done on their speciation...