| 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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Su, Bao-Lian
University of Namur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (27/27 displayed)
- 2022Low-pressure plasma process for the dry synthesis of cactus-like Au-TiO2 nanocatalysts for toluene degradationcitations
- 2021BN‐doped metal–organic frameworks: tailoring 2D and 3D porous architectures through molecular editing of borazinescitations
- 2020UV scattering by pores in avian eggshellscitations
- 2020Scattering of ultraviolet light by avian eggshellscitations
- 2020Immobilization of a Molecular Re Complex on MOF-derived Hierarchical Porous Carbon for CO2 Electroreduction in Water/Ionic Liquid Electrolytecitations
- 2019Radiative and non radiative recombinations study in the novel nanocomposites BiVO 4 /3DOM-TiO 2 , ZnO/3DOM-TiO 2 and BiVO 4 /3DOM-ZnOcitations
- 2016ZnO quantum dots decorated 3DOM TiO2 nanocompositescitations
- 2015Single-walled metal-organic nanotube built from a simple synthoncitations
- 2015Novel 3DOM BiVO4/TiO2 nanocomposites for highly enhanced photocatalytic activitycitations
- 2015Generalized approach to the microstructure direction in metal oxide ceramics via polymerization-induced phase separationcitations
- 2015Experimental and theoretical study of optical properties and quantum size phenomena in the BiVO4/TiO2 nanostructurescitations
- 2014Synthesis of novel mesoporous ZnO/SiO2 composites for the photodegradation of organic dyescitations
- 2013A comprehensive study of the reaction parameters involved in the synthesis of Silica thin films with well-ordered uni-directional mesoporescitations
- 2012Catalytic performance of core-shell and alloy Pd-Au nanoparticles for total oxidation of VOCcitations
- 2011Whole-cell based hybrid materials for green energy production, environmental remediation and smart cell-therapycitations
- 2011Structure and surface chemistry in crystalline mesoporous (CeO -δ)-YSZcitations
- 2011(Di)-aminoguanidine functionalization through transaminationcitations
- 2011Superlative scaffold of 1,2,4-triazole derivative of glycine steering linear chain to a chiral helicatecitations
- 2011(Di)-aminoguanidine Functionalization through Transamination: An Avenue to an Auspicious Class of Supramolecular Synthonscitations
- 2011Influence of the meso-macroporous ZrO -TiO calcination temperature on the pre-reduced Pd/ZrO -TiO (1/1) performances in chlorobenzene total oxidationcitations
- 2010Engineering three-dimensional chains of porous nanoballs from a 1,2,4-triazole-carboxylate supramolecular synthoncitations
- 2010Effect of nonionic surfactants on structure, texture, and morphology of titania-doped YSZcitations
- 2009Quantum Size Effect and very localized random laser in ZnO@mesoporous silica nanocomposite following a two-photon absorption processcitations
- 2008Removal of evans blue by using nickel-iron layered double hydroxide (LDH) nanoparticlescitations
- 2007Nanosized ZnO confined inside a Faujasite X zeolite matrixcitations
- 2007Nanosized ZnO confined inside a Faujasite X zeolite matrix:Characterization and optical propertiescitations
- 2007New phenomenon in the channels of mesoporous silicate CMI-1: quantum size effect and two-photon absorption of ZnO nanoparticlescitations
Places of action
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article
Novel 3DOM BiVO4/TiO2 nanocomposites for highly enhanced photocatalytic activity
Abstract
<p>Novel 3DOM BiVO<sub>4</sub>/TiO<sub>2</sub> nanocomposites with intimate contact were for the first time synthesized by a hydrothermal method in order to elucidate their visible-light-driven photocatalytic performances. BiVO<sub>4</sub> nanoparticles and 3DOM TiO<sub>2</sub> inverse opal were fabricated respectively. These materials were characterized by XRD, XPS, SEM, TEM, N<sub>2</sub> adsorption-desorption and UV-vis diffuse (UV-vis) and photoluminescence spectroscopies. A references for comparison, a physical mixture of BiVO<sub>4</sub> nanoparticles and 3DOM TiO<sub>2</sub> inverse opal powder (0.08:1), and a BiVO<sub>4</sub>/P25 TiO<sub>2</sub> (0.08:1) nanocomposite made also by the hydrothermal method were prepared. The photocatalytic performance of all the prepared materials was evaluated by the degradation of rhodamine B (RhB) as a model pollutant molecule under visible light irradiation. The highly ordered 3D macroporous inverse opal structure can provide more active surface areas and increased mass transfer because of its highly accessible 3D porosity. The results show that 3DOM BiVO<sub>4</sub>/TiO<sub>2</sub> nanocomposites possess a highly prolonged lifetime and increased separation of visible light generated charges and extraordinarily high photocatalytic activity. Owing to the intimate contact between BiVO<sub>4</sub> and large surface area 3DOM TiO<sub>2</sub>, the photogenerated high energy charges can be easily transferred from BiVO<sub>4</sub> to the 3DOM TiO<sub>2</sub> support. BiVO<sub>4</sub> nanoparticles in the 3DOM TiO<sub>2</sub> inverse opal structure act thus as a sensitizer to absorb visible light and to transfer efficiently high energy electrons to TiO<sub>2</sub> to ensure long lifetime of the photogenerated charges and keep them well separated, owing to the direct bandgap of BiVO<sub>4</sub> of 2.4 eV, favourably positioned band edges, very low recombination rate of electron-hole pairs and stability when coupled with photocatalysts, explaining the extraordinarily high photocatalytic performance of 3DOM BiVO<sub>4</sub>/TiO<sub>2</sub> nanocomposites. It is found that larger the amount of BiVO<sub>4</sub> in the nanocomposite, longer the duration of photogenerated charge separation and higher the photocatalytic activity. This work can shed light on the development of novel visible light responsive nanomaterials for efficient solar energy utilisation by the intimate combination of an inorganic light sensitizing nanoparticle with an inverse opal structure with high diffusion efficiency and high accessible surface area.</p>