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Evaluation of Relative Photonic Efficiency in Heterogeneous Photocatalytic Reactors
The evaluation of photonic efficiency in heterogeneous photocatalysis remains elusive because the number of absorbed photons is difficult to assess experimentally. The photonic efficiency of heterogeneous photocatalytic reactors depends on the reactor geometry, irradiation source, and photocatalyst properties. In this work, the relative photonic efficiency of heterogeneous photocatalytic reactors to degrade an azo dye was evaluated using phenol as the standard system. The experimental tests were carried out in a batch reactor under different conditions of pH, catalyst dosage, initial concentration, and ultraviolet (UV) lamps. The kinetics of disappearance of both phenol and azo dye were studied using the initial rate method and were described according to the Langmuir-Hinshelwood (L-H) kinetic model. It was observed that the relative photonic efficiency depends on the adsorption/desorp-tion properties of the photocatalyst.
Evaluation of Relative Photonic Efficiency in Heterogeneous Photocatalytic Reactors
The evaluation of photonic efficiency in heterogeneous photocatalysis remains elusive because the number of absorbed photons is difficult to assess experimentally. The photonic efficiency of heterogeneous photocatalytic reactors depends on the reactor geometry, irradiation source, and photocatalyst properties. In this work, the relative photonic efficiency of heterogeneous photocatalytic reactors to degrade an azo dye was evaluated using phenol as the standard system. The experimental tests were carried out in a batch reactor under different conditions of pH, catalyst dosage, initial concentration, and ultraviolet (UV) lamps. The kinetics of disappearance of both phenol and azo dye were studied using the initial rate method and were described according to the Langmuir-Hinshelwood (L-H) kinetic model. It was observed that the relative photonic efficiency depends on the adsorption/desorp-tion properties of the photocatalyst.
Evaluation of Relative Photonic Efficiency in Heterogeneous Photocatalytic Reactors
Netto, Gercino Cesconetto (author) / Sauer, Ticiane (author) / José, Humberto Jorge (author) / Moreira, Regina de Fatima Peralta Muniz (author) / Humeres, Eduardo (author)
Journal of the Air & Waste Management Association ; 54 ; 77-82
2004-01-01
6 pages
Article (Journal)
Electronic Resource
Unknown
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