Fundamental reactions in illuminated titanium dioxide nanocrystallite layers studied by pulsed laser

Article Abstract:

The reactions in illuminated TiO2 nanocrystallite layers was studied by exposing them to pulsed laser photolysis in the presence and absence of added reactants. Results showed that the decay of absorption in the nanosecond time range is mainly due to gradual electron trapping, but the absorbance changes are not affected by scavengers. The trapping of electron was found to successfully compete with recombination even in the absence of scavengers.

Photoabsorption

---

Laser photolysis of TiO2 layers in the presence of aqueous iodide

Article Abstract:

Mechanistic studies on the TiO2-iodide system in the form of nanocrystallite layers using laser photolysis, extending the kinetic studies up to the range of several seconds is presented. The study revealed that the separation between I3(super -) and the TiO2 electrons in the reaction is because of the dense coverage of the TiO2 surface by the photosensitizer.

Observations, Mechanical properties, Laser photochemistry

---

Kinetics of hydrogen production upon reduction of aqueous TiO2 nanoparticles catalyzed by Pd(super 0), Pt(super 0), or Au(super 0) coatings and an unusual hydrogen abstraction; steady state and pulse radiolysis study

Article Abstract:

TiO2 electrons are produced by electron injection of e(sub aq)(super -) and 2-propanol radicals through radiolysis of acid aqueous TiO2 colloidal solutions. The e(sub TiO2)(super -) decays within several hours when the TiO2 nanoparticles are coated with Pd(super 0), Pt(super 0), or Au(super 0).

Science & research, All Other Basic Organic Chemical Manufacturing, Industrial Organic Chemicals, Propanols, Atomic properties, Colloid chemistry

Similar abstracts:

• Abstracts: Electrical properties of niobium-doped titanium dioxide: 1: Defect disorder. Defect disorder of titanium dioxide
• Abstracts: Disintegration mechanisms of charged aqueous nanodroplets studied by simulations and analytical models. Quantitative characterization of ion pairing and cluster formation in strong 1:1 electrolytes
• Abstracts: Interaction between poly(ethylene oxide) and sodium dodecyl sulfate studied by neutron reflection. Investigation of mixing in binary surfactant solutions by surface tension and neutron reflection: strongly interacting anionic/zwitterionic mixtures
• Abstracts: Electrodeposition of flattened Cu nanoclusters on a p-GaAs(001) electrode monitored by in situ optical second harmonic generation
• Abstracts: Covalent guest-framework interactions in heavy metal sodalites: structure and properties of thallium and silver sodalite

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.