| 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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Faria, Jl
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2021Light-driven oxygen evolution from water oxidation with immobilised TiO2 engineered for high performancecitations
- 2020Carbon-nanotube/TiO2 materials synthesized by a one-pot oxidation/hydrothermal route for the photocatalytic production of hydrogen from biomass derivativescitations
- 2017Synthesis of TiO2-Carbon Nanotubes through ball-milling method for mineralization of oxamic acid (OMA) by photocatalytic ozonationcitations
- 2015Synergistic effect between carbon nanomaterials and ZnO for photocatalytic water decontaminationcitations
- 2014Pore structure, interface properties and photocatalytic efficiency of hydration/dehydration derived TiO2/CNT compositescitations
- 2014Controlled surface functionalization of multiwall carbon nanotubes by HNO3 hydrothermal oxidationcitations
- 2013Photocatalytic degradation of Reactive Black 5 with TiO2-coated magnetic nanoparticlescitations
- 2013CERAMIC MEMBRANES IN HYBRID PHOTOCATALYSIS/ULTRAFILTRATION PROCESSES
- 2012Insights into UV-TiO2 photocatalytic degradation of PCE for air decontamination systemscitations
- 2012Preparation of carbon aerogel supported platinum catalysts for the selective hydrogenation of cinnamaldehydecitations
- 2012Advanced nanostructured photocatalysts based on reduced graphene oxide-TiO2 composites for degradation of diphenhydramine pharmaceutical and methyl orange dyecitations
- 2011Carbon nanotube-TiO2 thin films for photocatalytic applicationscitations
Places of action
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article
Synthesis of TiO2-Carbon Nanotubes through ball-milling method for mineralization of oxamic acid (OMA) by photocatalytic ozonation
Abstract
Several TiO2-carbon nanotube composites were prepared by ball milling procedure. Prepared materials were characterized by several techniques, including N-2 equilibrium adsorption isotherms, thermogravimetric analysis, elemental analysis, X-ray diffraction spectra and transmission emission microscopy, and tested in the mineralization of oxamic acid (OMA) by photocatalytic ozonation. The influence of milling conditions was evaluated and the performance was compared with samples synthesized by conventional procedures. Independently of the milling time, a high amount of OMA, approximately 70%, is removed in the first 10 min of reaction by composites of commercial TiO2 (P25) and carbon nanotubes (MWCNT). In the best conditions, the milled sample presents a reaction rate constant of 0.099 min(-1), in contrast to 0.082 min(-1) obtained with conventional composite. The presence of N-groups produces a negative effect, especially when N-precursor was added during P25 composite preparation, removing 30% of OMA after 10 min of reaction and decreasing the removal rate to approximate to 0.050 min(-1). The OMA degradation is significantly more efficient in the presence of the milled composites containing synthesized TiO2 (SG) when compared to the composite prepared by the conventional procedure increased OMA removal from 40% to 70% after 30 min of reaction. The reaction rate constant of milled sample with original MWCNT (0.032 min(-1)) is considerably higher than observed with unmilled (0.012 min(-1)). A remarkable conversion is observed for all SG milled composites during the first 30 min of reaction and the presence of Fe is advantageous, since Fe can promote the O-3 decomposition into HO center dot radicals and surface reactions.