| People | Locations | Statistics |
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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
Sonochemical Modification of Carbon Nanotubes for Enhanced Nanocomposite Performance
Abstract
Multi-walled carbon nanotubes (CNTs) have been treated using 20 kHz ultrasound in combination with dilute nitric and sulfuric acids at much lower concentrations than previously reported. The measurements revealed an optimum set of sonication conditions (in this case 30 min at 12 W cm−2) exists to overcome aggregation of the nanotubes and to allow efficient dispersion in ethanol or in chitosan. Transmission electron microscopy and Raman spectroscopy suggested the removal of amorphous material and reduction of the CNT diameter as well as modifications to their defect structures. The surface oxidation was determined by FTIR spectroscopy. At longer times or higher ultrasound intensities, degradation such as nanotube shortening and additional defect generation in the graphitic network occurred and the benefits of using ultrasound decreased. The modified CNTs were used as fillers for chitosan films and gave a tenfold increase in tensile strength and integrity of the films. The methodology was combined with sonochemical generation of gold or iron oxide nanoparticles to produce a range of functional membranes for catalytic reductive hydrogenation or dye degradation under conditions that are more environmentally benign than those previously used. Our results further add to the usefulness of sonochemistry as a valuable tool in preparative materials chemistry but also illustrate the crucial importance of careful control over the experimental conditions if optimum results are to be obtained.