Tertiary low sulfidation (LS) epithermal deposits in the western USA often show evidence of the former presence of nanoparticle-sized precious-metal and silica phases in the highest grade (bonanza) ores. Here, nanoparticles are defined to have a size less than ~10 m. The ore-mineral textures that formed from aggregation of nanoparticles (or colloids) observed to date in these ores include elect...

Designing and fabricating highly efficient photocatalysts for water splitting is a promising strategy to address energy environmental issues. Cadmium sulfide (CdS) has received significant interest as photocatalyst visible-light-induced hydrogen (H2) generation. However, the severe photocorrosion, high overpotential, rapid charge recombination, sluggish surface reaction kinetics drastically hin...

   Hybrid polyaniline (PANI) based composites incorporating zinc sulfide (ZnS) nanoparticles (NPs) have been synthesized by using chemical oxidation technique. Schottky junction is constructed by depositing Polyaniline-zinc sulfide nanocomposite (PANI-ZnS NCs) on Au electrode. The results were compared with pure polyaniline. The I–V characteristics of the PANI-ZnS NCs hete...

Thiosulfate is an inorganic ligand that forms a soluble light-sensitive cadmium thiosulfate complex, and sulfide (CdS) with “size effect” can be produced via ultraviolet (UV) irradiation. This study investigated the activity of CdS nanoparticles (NPs) precipitated from complex UV irradiation on photocatalytic dye degeneration. Scanning electron microscopy (SEM) transmission (TEM) demonstrated d...

Hollow Glass Waveguides (HGWs) incorporating single dielectric thin film designs deposited on silver coated silica hollow waveguides have been used for low-loss transmission of infrared radiation in the 2 – 14 micrometer region. Silver iodide has traditionally been the material of choice as a dielectric thin film in HGWs, with other dielectric thin film materials such as cadmium sulfide and lea...