boron and perfluorooctane-sulfonic-acid

boron has been researched along with perfluorooctane-sulfonic-acid* in 4 studies

Other Studies

4 other study(ies) available for boron and perfluorooctane-sulfonic-acid

ArticleYear
Impact of supporting electrolyte on electrochemical performance of borophene-functionalized graphene sponge anode and degradation of per- and polyfluoroalkyl substances (PFAS).
    Water research, 2023, Aug-15, Volume: 242

    Graphene sponge anode functionalized with two-dimensional (2D) boron, i.e., borophene, was applied for electrochemical oxidation of C4-C8 per- and polyfluoroalkyl substances (PFASs). Borophene-doped graphene sponge outperformed boron-doped graphene sponge anode in terms of PFASs removal efficiencies and their electrochemical degradation; whereas at the boron-doped graphene sponge anode up to 35% of the removed PFASs was recovered after the current was switched off, the switch to a 2D boron enabled further degradation of the electrosorbed PFASs. Borophene-doped graphene sponge anode achieved 32-77% removal of C4-C8 PFASs in one-pass flow-through mode from a 10 mM phosphate buffer at 230 A m

    Topics: Alkanesulfonic Acids; Boron; Fluorocarbons; Graphite; Water Pollutants, Chemical

2023
Effects of chloride on electrochemical degradation of perfluorooctanesulfonate by Magnéli phase Ti
    Water research, 2020, Mar-01, Volume: 170

    This study examined the degradation of perfluorooctanesulfonate (PFOS) in an electrochemical system using Magnéli phase titanium suboxide (Ti

    Topics: Alkanesulfonic Acids; Boron; Diamond; Electrodes; Fluorocarbons; Oxidation-Reduction; Titanium; Water Pollutants, Chemical

2020
Electrooxidation of short and long chain perfluorocarboxylic acids using boron doped diamond electrodes.
    Chemosphere, 2020, Volume: 243

    This study investigates electrooxidation of short (C3-C6) and long (C7-C-18) chain perfluorocarboxylic acids (PFCAs) including perfluorooctane sulfonate (PFOA) using Si/BDD electrode. The effect of operational parameters (supporting electrolyte type, applied current density, and initial pH) were explored for PFOA removal. At the optimized conditions, 74% TOC removal and 37% defluorination ratio were gained for 10 mg L

    Topics: Alkanesulfonic Acids; Boron; Diamond; Electrodes; Fluorocarbons; Hydroxyl Radical; Waste Disposal, Fluid; Wastewater; Water Pollutants, Chemical

2020
Oxidative destruction of perfluorooctane sulfonate using boron-doped diamond film electrodes.
    Environmental science & technology, 2008, Aug-15, Volume: 42, Issue:16

    This research investigated the oxidative destruction of perfluorooctane sulfonate at boron-doped diamond film electrodes. Experiments measuring oxidation rates of PFOS were performed over a range in current densities and temperatures using a rotating disk electrode (RDE) reactor and a parallel plate flow-through reactor. The oxidation of PFOS yielded sulfate, fluoride, carbon dioxide, and trace levels of trifluoroacetic acid. Reaction rates in the RDE reactor were zeroth order in PFOS concentration. Reaction rates in the flow-through reactor were mass-transfer-limited and were pseudo-first-order in PFOS concentration, with a half-life of 5.3 min at a current density of 20 mA/cm2. Eyring analysis of the zeroth order rate constants at a fixed electrode potential yielded an apparent activation energy of 4.2 kJ/mol for PFOS oxidation. Density functional theory (DFT) simulations were used to calculate activation barriers for different possible reaction mechanisms, including oxidation by hydroxyl radicals at different sites on the PFOS molecule, and direct electron transfer. A comparison of the experimentally measured apparent activation energy with those calculated using DFT indicated that the most likely rate-limiting step for PFOS oxidation was direct electron transfer.

    Topics: Alkanesulfonic Acids; Boron; Diamond; Electrodes; Electrolysis; Environmental Pollutants; Environmental Pollution; Fluorocarbons; Models, Molecular; Molecular Structure; Oxidation-Reduction; Waste Management

2008
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