A series of homologous activated carbons obtained from KOH-activated pitch-based carbon molecular sieve modified by air oxidation/pyrolysis cycles is studied by (super 129)Xe nuclear magnetic resonance (NMR). A clear correlation between the pore size of microporous carbons and (super 129)Xe NMR of adsorbed xenon is shown; the correlation indicates that the xenon collision frequency increases with increasing micropore size

Article Abstract:

The electron spin resonance (ESR) spin-trapping technique uses 5,5-dimethyl-1-pyrroline-N-oxide as the spin-trap reagent and is applied to detect radical intermediates generated during UV or visible irradiation of aqueous 4-chlorophenol (4-CP)/N-doped TiO(sub 2) suspensions. ESR reveals that the active species are responsible for the photodecomposition of 4-CP over N-doped TiO(sub 2) under visible irradiation.

Carbon, Electron paramagnetic resonance

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Shrinking nanowires by kinetically controlled electrooxidation

Article Abstract:

Nanowires composed of atimony, gold and bismuth telluride (Bi2Te3) were shrinked in diameter by kinetically controlled electrooxidation in aqueous solutions. Kinetically controlled electrooxidation provides a means for reducing the diameter of nanowires without degrading the wire diameter uniformity.

Tellurium, Oxidation-reduction reaction, Oxidation-reduction reactions

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Visible-light induced degradation of rhodamine B by nanosized Bi(sub 2)WO(sub 6)

Article Abstract:

A study on a visible-light-induced photogradation of rhodamine B over nanosized Bi(sub 2)WO(sub 6) was conducted. The results revealed that the Bi(sub 2)WO(sub 6) exhibited a high photoactivity to photodegrade rhodamine B in the central pH solution under visible irradiation.

Optical properties

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