One step fabrication of glass–silver@core–shell fibers: silver-doped phosphate glasses as precursors of SERS substrates

Self-supported nickel nanoparticles on germanophosphate glasses: synthesis and applications in catalysis

“…We have also evaluated their performance in catalysis, Surface-enhanced Raman Spectroscopy (SERS), and antibacterial applications. [5][6][7][8][9] Phosphate-based glasses can be obtained at relatively low temperature by melt-quenching technique using affordable chemical reagents (e.g., KH 2 PO 4 , P 2 O 5 , NaPO 3 or NaH 2 PO 4 ). In addition, this type of glass becomes even more interesting because it can be easily doped with transition metal ions, alkali, and rare earth oxides to provide the desired physical and/or chemical characteristics.…”

“…With the addition of the oxidant and the formation of a biphasic system, fractions of BnOH are transfered to aqueous phase (3) where it is oxidized to BnCHO (4). The low aqueous solubility of BnCHO conducted to the diffusion of this specie to organic phase(5). Low concentration of BnCOOH are formed on aqueous phase (6) as a byproduct.17162 | RSC Adv., 2019, 9, 17157-17164This journal is © The Royal Society of Chemistry 2019RSC Advances Paper Open Access Article.…”

Lead–germanate glasses: an easy growth process for silver nanoparticles and their promising applications in photonics and catalysis

“…The route is based on a one-step growth experiment of metallic nanoparticles on phosphate-based glasses. This simple, inexpensive, and rapid approach has been found to be highly efficient in obtaining nanoparticles with applications in SERS active substrates 8,9 and catalysis. In this study, we present a silver-doped PbO-GeO 2 -Al 2 O 3 oxide glass matrix, which provides a catalyst with tailored nanoparticle size, enabling the generation of silver nanoparticles by thermal annealing.…”

“…[2][3][4] These distinct properties associated with nanostructured materials grown on the surface of germanate glasses could increase their elds of application. Therefore, nanoparticle/glass structures could be helpful especially for safety applications in cancer diagnosis, photothermal therapy, 5 bioassays, 6 contrast agents for optical medical tomography, 7 Raman spectroscopy 8,9 and catalysis. 10 Additionally, metallic nanoparticles in vitreous matrices also inuence the luminescence of lanthanide ions.…”

“…21,22 On the other hand, the immobilization of nanoparticles through wetchemistry approaches is low cost, but the possibility of surface contamination by reducing agents or chemisorbed stabilizers must be overcome. 23 In a previous article 8 we developed a new synthesis process for immobilization of nanoparticles on a glass surface by thermal annealing under a reducing hydrogen atmosphere. The route is based on a one-step growth experiment of metallic nanoparticles on phosphate-based glasses.…”