D. Dionysiou

Publications707
h-index116
Citations50,202
Highly Influential Citations862
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Radical generation by the interaction of transition metals with common oxidants.
TLDR
Nine transition metals were tested for the activation of three oxidants and the generation of inorganic radical species such as sulfate, peroxymonosulfate, and hydroxyl radicals to postulate the rate-determining step of the redox reactions taking place when a metal is coupled with an oxidant in aqueous solution.
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A review on the visible light active titanium dioxide photocatalysts for environmental applications
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Degradation of organic contaminants in water with sulfate radicals generated by the conjunction of peroxymonosulfate with cobalt.
TLDR
The advantage of Co/PMS compared to the traditional Fenton Reagent is attributed primarily to the oxidizing strength of the radicals formed, since sulfate radicals are stronger oxidants than hydroxyl and the thermodynamics of the transition-metal-oxidant coupling.
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Sulfate radical-based ferrous-peroxymonosulfate oxidative system for PCBs degradation in aqueous and sediment systems
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Cobalt-mediated activation of peroxymonosulfate and sulfate radical attack on phenolic compounds. implications of chloride ions.
TLDR
The sulfate radical pathway of the room-temperature degradation of two phenolic compounds in water is reported, and it provides strong evidence on the interaction of chloride ions with sulfate radicals leading to halogenation of organics in water.
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Transition metal/UV-based advanced oxidation technologies for water decontamination
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Trichloroethene hydrodechlorination in water by highly disordered monometallic nanoiron
The small size and high surface-to-volume ratio makes nanoiron attractive for in situ remediation of groundwater contaminants that are susceptible to reductive transformation, e.g. trichloroethylene…
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Sources and remediation for mercury contamination in aquatic systems--a literature review.
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Identifying pioneer bacterial species responsible for biofouling membrane bioreactors.
TLDR
The results suggest that the microbial communities on membrane surfaces could be very different from the ones in the suspended biomass and research on the mechanisms of cell attachment in such an engineering environment could be critical for future development of appropriate biofouling control strategies.
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Oxidation kinetics and effect of pH on the degradation of MTBE with Fenton reagent.
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