Aerobic photo-oxidation is a kind of green catalytic process that give valuable chemicals because its mild reaction conditions and high product selectivity. Recently, small-sized IB metal nanoparticles (NPs; e.g., Cu, Ag, Au, sized 1–3 nm) upon the surface titanium oxide show excellent photocatalytic performance. The introduction NPs can enhance separation photo-generated holes/electrons during...

htvb}+OH--'OHOrhlvb)+H2OT"'OH+Htq [5] These active species of oxygen as well as eand ht.b) would support a wide variety of Ti02 dependent photo-induced catalytic reactions, oxidation, oxidative cleavage, reduction, geometric and valence isomerization, substitution, condensation, and polymerizatien.i) We showed here that NOi is oxidized by・OH and reduced by e', producing NOi and NO, respectively...

Strained silicon germanium carbon (Si1 x yGexCy or SiGeC) on silicon was oxidized using a novel photo-oxidation process. The growth rate of the oxide was investigated and found to depend heavily on the germanium and carbon concentrations. MOS capacitors were fabricated with the resulting oxide and electrical characterization was done. The SiGeC MOS capacitors proved to have high leakage current...

From different sources of carbon , propane have been chosen to get a wider band gap amorphous silicon alloy . After analyzing the conductivity and optical gap variation with the doping ratio , the best were used to fabricate 5x5 cm solar cells . Those cells are connected to form 75 x 75 cm panels. Photo-oxidation were carried out using different sources as an accelerated method to study the met...

We investigate the oxidation of methacryloylperoxy nitrate (MPAN) and methacrylicperoxy acid (MPAA) by the hydroxyl radical (OH) theoretically, using both density functional theory [B3LYP] and explicitly correlated coupled cluster theory [CCSD(T)-F12]. These two compounds are produced following the abstraction of a hydrogen atom from methacrolein (MACR) by the OH radical. We use a RRKM master e...

The photosensitized chemistry of three aromatic ketones (xanthone, flavone, and acetophenone) also secondary organic aerosols (SOAs) arising from the photo-oxidation naphthalene was investigated by means transient absorption spectroscopy.

Metal oxidation is one of the spontaneous chemical reaction, which is hard to control. Most metals inevitably have at least a few layers of oxides on the surface in natural environment. Because of the large impact of metal oxidation on infrastructure and transportation, surface oxidation and its role on structure and property have attracted significant attentions on the fundamental aspects of o...

ABSTRACT. In this study, the effect of Fenton and photo-Fenton processes, which are advanced oxidation processes that use hydroxyl radical for decolorization Novacron Black from aqueous solutions, on was investigated. Optimum levels initial pH, temperature, hydrogen peroxide concentration, dyestuff iron concentration were determined. Initial Fe2+ most effective experimental parameters in with p...