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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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Szafran, Mikołaj
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (40/40 displayed)
- 2020Polyvinylidene difluoride-based composite: glassy dynamics and pretransitional behaviourcitations
- 2020Sweet ceramics: how saccharide-based compounds have changed colloidal processing of ceramic materialscitations
- 2020Influence of core‐shell structure on the cure depth in photopolymerizable alumina dispersioncitations
- 2019Gelcasting of Al2O3–W composites: Broadband dielectric spectroscopy and rheological studies of tungsten influence on polymerisation kineticscitations
- 2019Application of highly sensitive spectrophotometric analysis in detection of metal content in molybdenum reinforced alumina obtained by precursor infiltration of ceramic preformscitations
- 2018Dense alumina ceramics obtained by gelcasting and cold isostatic pressing with the use of 2-carboxyethyl acrylatecitations
- 2018Surface modification of alumina powder to prevent exfoliation of samples fabricated by gelcasting
- 2018Combined centrifugal-slip casting method used for preparation the Al2O3-Ni functionally graded compositescitations
- 2018Sintering behavior and thermal expansion of zirconia–titanium compositescitations
- 2018Enhancement of thermo-rheological properties of smart materials based on SiO2 and PPG modificated with expanded graphitecitations
- 2018Thermoanalytical studies of the ceramic-metal composites obtained by gel-centrifugal castingcitations
- 2018Copolymers dispersions designed to shaping of ceramic materials - Investigations of glass transition temperature, thermal stability and decomposition of water-thinnable binderscitations
- 2017Colloidal processing of Al2O3 and BST materials - investigations of thermal stability and decomposition of green bodiescitations
- 2017New dynamics in poly(propylene glycol) based glass-forming nanocompositescitations
- 2016Magnetic field alignment in highly concentrated suspensions for gelcasting processcitations
- 20162-carboxyethyl acrylate as a new monomer preventing negative effect of oxygen inhibition in gelcasting of aluminacitations
- 2016Stabilization of heavy metal particles in Al2O3-W suspensionscitations
- 2016Fabrication of ZrO2-Ti composites by slip casting methodcitations
- 2015Tunable ceramic-polymer composites for electronic applications
- 2015Deflocculation and stabilization of Ti3SiC2 ceramic powder in gelcasting processcitations
- 2015Forming graded microstructure of Al2O3-Ni composite by centrifugal slip casting
- 2014Monoacryloyl esters of carbohydrates: Synthesis, polymerization and application in ceramic technologycitations
- 2014Acryloyl derivative of glycerol in fabrication of zirconia ceramics by polymerization in situcitations
- 2014Fabrication of textured alumina by magnetic alignment via gelcasting based on low-toxic systemcitations
- 2014Preparation of Al2O3-Ni Cermet Composites by Aqueous Gelcastingcitations
- 2014Application of gelcasting method on ceramic-metal composite fabrication
- 2013The influence of nano-SiO2 particle size on dilatant effect of shear thickening fluids
- 2013Fabrication of textured [alpha]-alumina in high magnetic field via gelcasting with the use of glucose derivativecitations
- 2013Ceramic porous materials made of ZnO intended for eliminating particles imitating viruses from water
- 2013The effect of nano SiO2 particle size distribution on rheological behaviour of shear thickening fluidscitations
- 2013Tunable Ferroelectric Ceramic-Polymer Composites for Sub-THz Applications
- 2013New anhydrous aluminum nitride dispersions as potential heat-transferring mediacitations
- 2013New multifunctional compounds in gelcasting process - introduction to their synthesis and application
- 2011Properties of Water-Based Slurries for Fabrication of Ceramic-Metal Composites by Slip Casting Methodcitations
- 2009Ceramic-in-polymer versus polymer-in-ceramic polymeric electrolytes—A novel approachcitations
- 2004Microstructure and properties of novel ceramic–polymer compositescitations
- 2004Water Thinnable Polymeric Binders in Die Pressing of Aluminacitations
- 2004Effect of glass transition temperature of polymeric binders on properties ceramic materialscitations
- 2003Ceramic-polymer ferroelectric materials for antenna applicationscitations
- 2001Vinyl Acetate Copolymers in Die Pressing of Aluminacitations
Places of action
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article
Ceramic porous materials made of ZnO intended for eliminating particles imitating viruses from water
Abstract
In water there are several pollutants having a significant impact on human health. The greatest difficulties are associated with the removal of viruses due to their small size (generally in the range of 20 to 400 nm). Currently, the most effective ways of removing of viruses from water are filters based on electrostatic adsorption. In this method, negatively charged viruses (in the pH of drinking water, pH 5÷9) are retained on an oppositely charged filter surface. These filters are characterized by large pores allowing a much more efficient flow of liquid through the filters and also eliminating the blockage of pores. In order to provide ceramic filters with a positive charge, their inner surface is modified. The purpose of this study was to obtain ceramic composite materials on the basis of zinc oxide with active layers from zinc oxide and simulate the filtration process using a polymer dispersion characterized by a similar size of particles to that of viruses and a negative charge in the pH of drinking water, as is in the case of viruses, was carried out. In order to obtain ceramic composite materials, two types of zinc oxide were used. The average grain sizes of the powders were different ( an average particle size of about 200 nm for the powders which were purchased from NanoTek and about 7 μm for those which were purchased from POCH. Porous ceramic composite materials were formed by unilateral pressing. A 10 wt.% aqueous solution of poly(vinyl alcohol) with a molecular weight of 67 000 and degree of hydrolysis of 88% was used as the binder in the ceramic materials. Zinc acetate ((CH3COO)2Zn) was used to obtain the active layer of the ceramic composite materials while 0.01 wt.% solutions of polymer dispersion with a negative electrokinetic potential - Rokryl SW 4025 (Rokita S.A.) ( was used to simulate the process of filtration. During the study, measurements characterizing the ceramic powders, measurements of the physical and mechanical properties of the samples were performed. The influence of the pressure (10 and 30 MPa) and additive of nano-ZnO (0 to 10 vol.%) on the tensile strength, open porosity and distribution of the pore size in the samples after sintering at 900°C were determined. Moreover, the effectiveness of the filtration process using the porous ceramic materials with an active layer of ZnO, which was formed by the impregnation of ceramic samples by zinc acetate and sintered at 430°C, were evaluated.