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Search results for: ctivated carbon
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Atomic substitution and carbon isotope effect in superconducting MgCNi3
PublicationW pracy analizowany jest wpływ domieszkowania zarówno pozycji niklu, jak i węgla w nadprzewodzącym związku międzymetalicznym MgCNi3. Dodatkowo dyskutowany jest węglowy nadprzewodzący efekt izotopowy.
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Carbon dioxide fracturing technologies for shale gas recovery
PublicationThis paper presents literature survey on the theoretical and practical aspects of gas production from shale using carbon dioxide fracturing. Development of technical and environmental aspects of carbon dioxide fracturing technologies are also considered. Patents applicable to carbon dioxide fracturing are reviewed.
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Carbon dioxide sequestration during shale gas recovery
PublicationThis paper presents literature on theoretical and practical aspects of gas production from shale using carbon dioxide fracturing. Development of technical and environmental aspects of carbon dioxide fracturing technologies is also considered. Patents applicable to carbon dioxide fracturing are reviewed. There were also conducted researches to evaluate possibility of carbon dioxide sequestration in shale gas reservoirs.
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VOLTAMMETRIC DETERMINATION OF DEOXYRIBONUCLEIC ACID PRESENCE ON A CARBON ELECTRODE
PublicationThis paper presents a voltammetry as a useful method to analyse DNA from different species. This electrochemical method is well know and used in different analyses. The influence of an area of working electrode and the capacity component, is shown at equals and the measurement. In voltammetry DNA measurement the capacity component is very important and must be taken into consideration. All mathematical analyses were verify at laboratory.
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Formation of novel nanostructures using carbon nanotubes as a frame
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Aluminium Profile Reinforced with Carbon Fibre: Numerical Analysis
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Chlorination of Carbon Nanotubes Obtained on the Different Metal Catalysts
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Simultaneous purification and functionalization of carbon nanotubes using chlorination
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Corrosion resistance studies of carbon-encapsulated iron nanoparticles
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Carbon laminates with RE doped optical fibre sensors
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Carbon-coated anatase: adsorption and decomposition of phenol in water
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Hybridization of adsorptivity with photocatalytic activity—carbon-coated anatase
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Hybrid biobattery based on arylated carbon nanotubes and laccase
PublicationJednościenne nanorurki węglowe modyfikowano resztami antracenu i antrachinonu Otrzymany materiał posłużył do modyfikacji elektrody węglowej w celu jej zastosowania do redukcji tlenu w bioogniwie paliwowym. Nanorurki z aromatycznymi grupami zwiększyły powierzchnię elektrody oraz przyczyniły się do zwiększenia bezpośredniego przeniesienia elektronów. Grupy arylowe mogą wnikać do hydrofobowej kieszeni enzymu, w której znajduje się...
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Cobalt/Carbon Nanocomposite as Oxygen Evolution Reaction Electrocatalyst
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CVD generated mesoporous hollow carbon spheres as supercapacitors
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Synthesis of Multiwalled Carbon Nanotubes by Catalytic Combustion of Polypropylene
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Investigation of the microstructure on the nanoporous carbon based capacitive performance
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Grinding-induced functionalization of carbon-encapsulated iron nanoparticles
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Addition of azomethine ylides to carbon-encapsulated iron nanoparticles
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Carbon Based Electrode Materials and their Architectures for Capacitive Deionization
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Application of industrial waste as a carbon source for biosurfactants production
PublicationBiosurfactants are natural surfactants produced by variety of microorganisms. They are very prospective product due to good biodegradability, low toxicity, good physicochemical properties and high efficiency in many applications. Moreover, they are efficient in wide range of pH, temperatures and salinity. However, the production of biosurfactants is very expensive due to high purification cost. This cost can be minimized by application...
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WEAR OF Si OR B DOPED AMORPHOUS CARBON COATINGS
PublicationThe paper describes a complex wear research on DLC (amorphous carbon) moped with boron (B) and silicone (Si). The tests were carried out in two different sliping systems: flat–on–flat (ring contact, unidirectional sliding) and ball–on–flat (reciprocating sliding). Water and medical saline solutions were used as lubricants. A comparative analysis of the results revealed differences in the initiation and progress of wear and the...
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Hybrid battery based on arylated carbon nanotubes and laccase
PublicationSingle-walled carbon nanotubes (SWCNT) were covalently modified with anthracene and anthraquinone and used for the construction of cathodes for biocatalytic reduction of dioxygen. The nanotubes with aromatic groups casted onto the electrode increased the working surface of the electrode and enabled efficient direct electron transfer (DET) between the enzyme and the electrode. The aryl groups enter the hydrophobic pocket of the...
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Hybrid biobateryy based on arylated carbon nanotubes and laccase
PublicationSingle-walled carbon nanotubes (SWCNT) were covalently modified with antracene and antraquinone and used for the construction of cathodes for biocatalytic reduction od dioxygen. The nanotubes with aromatic groups casted onto the electrode increased the working surface of the electrode and enabled efficient direct electron tarnsfer (DET) between the enzyme and the electrode. the aryl groups enter the hydrophobic pocket of the T1...
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Basic physiology of Pseudomonas aeruginosa contacted with carbon nanocomposites
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Iron filled carbon nanostructures from different precursors
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Comparative study on purity evaluation of singlewall carbon nanotubes
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Single-walled carbon nanotubes fractionation via electrophoresis
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Selective oxidation of metallic single-walled carbon nanotubes
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MOF-5 derived carbon as material for CO2 absorption
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Boron doped carbon nanotubes via ceramic catalysts
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Oxidation and reduction of multiwalled carbon nanotubes — preparation and characterization
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In situ observations of fullerene fusion and ejection in carbon nanotubes
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Assessing pathways into a low carbon and climate responsible Gdansk
PublicationA basic question today is the sense of the use new ideas in shaping Polish cities- not as technologically advanced as others. The key is to understand good practices in designing and implementing new approaches. The comparative research Glasgow and Gdansk has been undertaken by Gdansk Development Agency in Jan 2014
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Vibrational Quenching of Optically Pumped Carbon Dimer Anions
PublicationCareful control of quantum states is a gateway to research in many areas of science such as quantum information, quantum-controlled chemistry, and astrophysical processes. Precise optical control of molecular ions remains a challenge due to the scarcity of suitable level schemes, and direct laser cooling has not yet been achieved for either positive or negative molecular ions. Using a cryogenic wire trap, we show how the internal...
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Structure and thermoelectric properties of bismuth telluride—Carbon composites
PublicationCarbon nanotubes and amorphous carbon have been introduced into a bismuth telluride matrix (0.15 and 0.30 wt.% ratio) to investigate the influence of the carbon on the composite’s thermoelectric properties. Composites with well-dispersed additives have been obtained by sonication and ball-milling methodology. Carbon nanotubes and an amorphous carbon addition led to a decrease in electric conductivity from 1120 S/cm to 77 S/cm....
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Synergistic effect of nanoscale carbon black and ammonium polyphosphate on improving thermal stability and flame retardancy of polypropylene: A reactive network for strengthening carbon layer
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Correction: Synergistic effect of carbon fibers and carbon nanotubes on improving thermal stability and flame retardancy of polypropylene: a combination of a physical network and chemical crosslinking
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Degradation of 1,4-dioxane by sono-activated persulfates for water and wastewater treatment applications
PublicationThis paper presents a hybrid advanced oxidation process (AOP) based on sonocavitational activation of persulfate (PS) for degradation of 1,4-dioxane during wastewater treatment. Application of sono-cavitation effectively convert PS to radical species demonstrating synergistic effect by increasing the reaction rate and reducing the required energy for activation. It is economically feasible and deployed alternative to the direct...
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Activated biochars reduce the exposure of polycyclic aromatic hydrocarbons in industrially contaminated soils
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The effect of slowly biodegradable substrate on the kinetics of biochemical processes in activated sludge bioreactors
PublicationCelem niniejszej rozprawy doktorskiej było określenie wpływu substratu wolnorozkładalnego (w postaci związków koloidalnych i zawiesinowych) na kinetykę wybranych procesów biochemicznych, zachodzących w komorach osadu czynnego (tj. denitryfikacja, uwalnianie i anoksyczny/tlenowy pobór fosforanów oraz pobór tlenu), opierając się na badaniach prowadzonych w dwóch dużych komunalnych oczyszczalniach ścieków "Wschód" w Gdańsku i "Dębogórze"...
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Influence of titanium dioxide activated under visible light on survival of mold fungi
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Long-term simulation of the activated sludge process at the Hanover-Gümmerwald pilot WWTP
PublicationCelem badań było uzyskanie zweryfikowanego modelu ASM3P, który mógłby być wykorzystany jako narzędzie decyzyjne do wyznaczania maksymalnych przepływów w oczyszczalniach ścieków. Symulacje przeprowadzono w oparciu o wyniki badań obciążeń hydraulicznych w pilotowej oczyszczalni ścieków Hanower-Gummerwald. Wyniki symulacji zostały porównane z wynikami pomiarów on-line w komorach osadu czynnego (N-NH4, N-NO3) oraz w odpływie z osadnika...
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The Response of Pseudomonas aeruginosa PAO1 to UV-activated Titanium Dioxide/Silica Nanotubes
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The potential of enhancing denitrification in the activated sludge process with by-products from the alcohol production
PublicationIn this study, by-products from the alcohol production were examined in terms of their potential application as external carbon sources for enhancing denitrification in biological nutrient removal systems. Three kinds of experimental assays were used to compare the effects of the by-products with other external carbon sources (ethanol and acetic acid) and the settled wastewater. Based on the results obtained, it appears that one...
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The role of particulate and colloidal substrate in biological nutrient removal activated sludge systems
PublicationThe authors investigated COD fractionation according to the physical state (soluble/colloidal/particulate) in four wastewater treatment plants (WWTPs) in northern Poland. It was found that particulate and colloidal organic compounds constituted up to 70% of total COD. On the other hand, according to literature data, municipal wastewater contains readily and slowly biodegradable substrates in the amount of approximately 10-30% and...
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The effect of slowly biodegradable substrate on the kinetics of biochemical processes in activated sludge bioreactors
PublicationCelem niniejszej rozprawy doktorskiej było określenie wpływu substratu wolnorozkładalnego (w postaci związków koloidalnych i zawiesinowych) na kinetykę wybranych procesów biochemicznych, zachodzących w komorach osadu czynnego (tj. denitryfikacja, uwalnianie i anoksyczny/tlenowy pobór fosforanów oraz pobór tlenu), opierając się na badaniach prowadzonych w dwóch dużych komunalnych oczyszczalniach ścieków "Wschód" w Gdańsku i "Dębogórze"...
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Molecular Design Using Selected Concentration Effects in Optically Activated Fluorescent Matrices
PublicationMolecular physics plays a pivotal role in various fields, including medicine, pharmaceuticals, and broader industrial applications. This study aims to enhance the methods for producing specific optically active materials with distinct spectroscopic properties at the molecular level, which are crucial for these sectors, while prioritizing human safety in both production and application. Forensic science, a significant socio-economic...
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Marek Krawczuk prof. dr hab. inż.
PeopleScientific background 1987 - graduated Gdansk Univeristy of Technology, Faculty of Machine Design 1991 - PhD - Institute of Fluid Flow Machinery Gdansk 1995 - DSc - Institute of Fluid Flow Machinery Gdansk 2003 - Prof. - Institute of Fluid Flow Machinery Gdansk Profesional bakground 1987-1989 Gdansk University of Technology 1989 -2007 Institute of Fluid Flow Machinery Gdansk 2001-2003 Univeristy of Warmia and Mazury Olsztyn 2003...
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XRD for MoS2-Carbon Based Materials
Open Research DataThe presented data showcases the results of XRD analysis conducted on molybdenum sulfide modified with carbon. The MoS2-carbon base materials were prepared via a facile hydrothermal method. Structural characterization confirmed the successful incorporation of carbon into the MoS2 support. XRD was recorded using an X-ray diffractometer (Philips X”Pert...