| 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
Comparative study of the modification of multi-wall carbon nanotubes by gamma irradiation and sonochemically assisted acid etching
Abstract
Multi-walled carbon nanotubes (CNTs) have been treated with gamma irradiation in air or by using dilute acids (H 2 SO 4 /HNO 3 ) combined with 20 kHz ultrasound to compare their effects. The CNT microstructure has been investigated using transmission electron microscopy which revealed that both methods effectively modified the CNTs to overcome aggregation of the nanotubes, resulting in efficient dispersion in ethanol. The nature of the surface modifications was investigated using Raman and FTIR spectroscopies. The introduction of oxygenated species at the CNT surface was detected. At longer treatment times or high ultrasound intensities, the sonochemically assisted acid treatment showed the highest degree of reaction and functionalisation. Modification of the structure with γ-radiation with doses of 100 kGy or 200 kGy also resulted in a reduction of defects, attributed to an annealing and reorganisation process. The observed effects could be correlated with the time and intensity of the ultrasound used or the dose and dose rate of the γ-radiation. Both methods offer the possibility for processes with lower environmental inpact than those that currently exist. Our results also illustrate the importance of careful control over these experimental parameters if optimum results are to be obtained.