Journal ArticleDOI
Redox and acidic properties of the borate radical B(OH)˙4. A flash photolysis study
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TLDR
Flash photolysis of an aqueous solution of sodium metaborate and potassium peroxydisulphate at pH 115 gives rise to a new transient species with an absorption maxima at 590 nm and 650 nm, respectively.Abstract:
Flash photolysis of an aqueous solution of sodium metaborate and potassium peroxydisulphate at pH 115 gives rise to a new transient species with an absorption maxima at 590 nm (Iµ= 80 m2 mol–1) and 650 nm (Iµ= 90 m2 mol–1) The laser-Raman and 11B nmr spectra of metaborate solutions at pH 115 are consistent with the presence of the tetrahydroxyborate ion, B(OH)–4 The pKa and reduction potential of the radical B(OH)˙4, produced on flashing a mixture of B(OH)–4 and S2O2–8 are found to be 1075 ± 002 and + 14 V, respectively The rate constants for the oxidation of several amines and phenols by this one-electron oxidant have been determined Salt-effect studies are consistent with the reactive species being B(OH)3O˙–read more
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Effects of Anions and pH on the Stability of ZnO Nanorods for Photoelectrochemical Water Splitting
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Radiolytic Reactions of Monochloramine in Aqueous Solutions
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Borate-Mediated Hole Transfer from Irradiated Anatase TiO2 to Phenol in Aqueous Solution
TL;DR: In this paper, the authors reported that the addition of sodium borate to an aqueous suspension of anatase TiO2 at neutral pH can result in a significant enhancement in the rate of phenol degradation.
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Improved photocatalytic activity of rutile TiO2 for organic oxidation through Ag nanoparticles and borate anions
TL;DR: In this paper, the authors reported a mutual effect of Ag nanoparticles and borate anions greatly increasing the photocatalytic activity of Rutile TiO2 for phenol oxidation in neutral aqueous solution.
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Reactions of the borate radical with para-substituted benzoic acids (photo-kolbe reaction)
TL;DR: In this paper, the rate constants for the reactions of the borate radical B(OH) 3 O with various para-substituted benzoic acids were measured by flash kinetic spectrophotometry.