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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Price, Gareth J.
University of Bath
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (15/15 displayed)
- 2023The effect of polymer end-group on the formation of styrene – maleic acid lipid particles (SMALPs)citations
- 2018Comparative study of the modification of multi-wall carbon nanotubes by gamma irradiation and sonochemically assisted acid etchingcitations
- 2018Ultrasound Promoted Synthesis and Properties of Chitosan Nanocomposites Containing Carbon Nanotubes and Silver Nanoparticlescitations
- 2018Sonochemical Modification of Carbon Nanotubes for Enhanced Nanocomposite Performancecitations
- 2017Preparation, morphology and sonication time dependence of silver nanoparticles in amphiphilic block copolymers of PEO with polystyrene or PMMAcitations
- 2016Eco-friendly synthesis and catalytic application of chitosan/gold/carbon nanotube nanocomposite filmscitations
- 2014Preparation of gold nanoparticles in polystyrene–PEO block copolymerscitations
- 2014Synergistic effects of combining ultrasound with the Fenton process in the degradation of Reactive Blue 19citations
- 2014Sonochemical characterisation of ultrasonic dental descalerscitations
- 2011Effects of Temperature and Polymer Composition upon the Aqueous Solution Properties of Comblike Linear Poly(ethylene imine)/Poly(2-ethyl-2-oxazoline)-Based Polymerscitations
- 2011Deposition of poly(ethyleneimine)/poly(2-ethyl-2-oxazoline) based comb-branched polymers onto polypropylene nonwoven fabric using the layer-by-layer technique. selected properties of the modified materialscitations
- 2004Surface modification of calcium carbonates studied by inverse gas chromatography and the effect on mechanical properties of filled polypropylenecitations
- 2004Investigation of radical intermediates in polymer sonochemistrycitations
- 2004Chromatographic estimation of filler surface energies and correlation with photodegradation of kaolin filled polyethylenecitations
- 2004Correlation of mechanical properties of clay filled polyamide mouldings with chromatographically measured surface energiescitations
Places of action
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article
Synergistic effects of combining ultrasound with the Fenton process in the degradation of Reactive Blue 19
Abstract
The decoloration of reactive dye C.I. Reactive Blue 19 (RB 19) using combined ultrasound with the Fenton process has been investigated. The effect of varying the concentrations of hydrogen peroxide and iron sulfate, initial pH, ultrasonic power, initial dye concentration and dissolved gas on the decoloration and degradation efficiencies was measured. Calibration of the ultrasound systems was performed using calorimetric measurements and oxidative species monitoring using the Fricke dosimeter and degradations were carried out with a 20 kHz probe type transducer at 2, 4, 6 and 8 W -2 cm of acoustic intensity at 15, 25, 50 and 75 mg L -1 initial dye concentrations. First order rate kinetics was observed. It was found that while the degradation rate due to ultrasound alone was slow, sonication significantly accelerated the Fenton reaction. While the results were similar to those reported for other dyes, the effects occurred at lower concentrations. The rate and extent of decoloration of RB 19 increased with rising hydrogen peroxide concentration, ultrasonic powers and iron sulfate concentration but decreased with increasing dye concentration. An optimum pH value of pH = 3.5 was found. The rate of decoloration was higher when dissolved oxygen was present as compared with nitrogen and argon confirming the solution phase mechanism of the degradation.