Browsing by Author "Silvestri Daniele"
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- ItemA comparative study of the degradation efficiency of chlorinated organic compounds by bimetallic zero-valent iron nanoparticles(RSC, 2022-01-01) Venkateshaiah Abhilash; Silvestri Daniele; Waclawek Stanislaw Witold; Ramakrishnan Rohith Kunjiparambil; Krawczyk Kamil; Saravanan P.; Pawlyta Mirosława; Vellora Thekkae Padil Vinod; Černík Miroslav; Dionysiou Dionysios
- ItemA new method for assessment of the sludge disintegration degree with the use of differential centrifugal sedimentation.(TAYLOR & FRANCIS LTD, 2019-01-01) Silvestri Daniele; Waclawek Stanislaw Witold; Gončuková Zuzanna Renata; Vellora Thekkae Padil Vinod; Grübel Klaudiusz; Černík Miroslav
- ItemA poly(3-hydroxybutyrate)-chitosan polymer conjugate for the synthesis of safer gold nanoparticles and their applications(Royal Society of Chemistry, 2018-01-01) Silvestri Daniele; Waclawek Stanislaw Witold; Sobel Bartłomiej; Torres Mendieta Rafael Omar; Novotný Vít; Nguyen Nhung Anh Huynh; Ševců Alena; Vellora Thekkae Padil Vinod; Müllerová Jana; Stuchlík Martin; Petrangeli Papini Marco; Černík Miroslav; Varma RajendraA facile and eco-friendly approach is developed for the synthesis of a poly(3-hydroxybutyrate)–chitosan (PHB–chit) polymer conjugate, which is an ideal material for the synthesis of safer gold nanoparticles (nAu). The synthesized products are characterized by various electron-based, optical and spectroscopic techniques including the catalytic activity and the stability/toxicity of nAu. In contrast to the conventional synthesis approaches, the use of PHB–chit results in generation of a highly stable and size-controlled nAu material that exhibits important catalytic activity towards the reduction of 4-nitrophenol (4-NP) to 4-aminophenol, and at the same time shows no toxicity against living bacterial systems such as Escherichia coli or Staphylococcus aureus. The synthesis route reported herein would inspire future developments that circumvent toxicity issues of relevance to living systems while performing common catalytic experimentation.
- ItemA comparative study of gold nanoparticles synthesized with a &aposgreen&apos approach(Tanger Ltd., 2018-01-01) Silvestri Daniele; Gončuková Zuzanna Renata; Waclawek Stanislaw Witold; Adach Kinga Izabela; Fijalkowski Mateusz; Vellora Thekkae Padil Vinod; Černík Miroslav
- ItemGum Kondagoagu/Reduced Graphene Oxide Framed Platinum Nanoparticles and Their Catalytic Role(MDPI, 2019-01-01) Venkateshaiah Abhilash; Silvestri Daniele; Ramakrishnan Rohith Kunjiparambil; Waclawek Stanislaw Witold; Vellora Thekkae Padil Vinod; Černík Miroslav; Varma Rajendra
- ItemInfluence of catalyst zeta potential on the activation of persulfate(ROYAL SOC CHEMISTRY, 2021-01-01) Silvestri Daniele; Krawczyk Kamil; Pawlyta Mirosława; Krzywiecki Maciej; Vellora Thekkae Padil Vinod; Torres Mendieta Rafael Omar; Ghanbari Farshid; Černík Miroslav; Dinc Ozge; Dionysiou Dionysios; Waclawek Stanislaw Witold
- ItemLaser-synthesized Ag/TiO nanoparticles to integrate catalytic pollutant degradation and antifouling enhancement in nanofibrous membranes for oil-water separation(Elsevier, 2021-01-01) Ettel David; Havelka Ondřej; Isik Selingül; Silvestri Daniele; Waclawek Stanislaw Witold; Urbánek Michal; Vellora Thekkae Padil Vinod; Černík Miroslav; Yalcinkaya Fatma; Torres Mendieta Rafael Omar
- ItemModification of nZVI with a bio-conjugate containing amine and carbonyl functional groups for catalytic activation of persulfate(Elsevier, 2021-01-01) Silvestri Daniele; Waclawek Stanislaw Witold; Sobel Bartłomiej; Torres Mendieta Rafael Omar; Pawlyta Mirosława; Vellora Thekkae Padil Vinod; Filip Jan; Černík Miroslav
- ItemSelective spectrophotometric determination of peroxydisulfate based on a by-product formation(Elsevier, 2021-01-01) Waclawek Stanislaw Witold; Silvestri Daniele; Vellora Thekkae Padil Vinod; Černík Miroslav; Dionysiou Dionysios
- ItemSurface modification of zero-valent iron nanoparticles with &beta-cyclodextrin for 4-nitrophenol conversion(Elsevier, 2021-01-01) Krawczyk Kamil; Waclawek Stanislaw Witold; Silvestri Daniele; Vellora Thekkae Padil Vinod; Řezanka Michal; Černík Miroslav; Jaroniec Mietek
- ItemSYNERGISTIC EFFECT OF NANO ZERO-VALENT IRON AND CYCLODEXTRINS: A NANO-STRUCTURE FOR WATER PURIFICATION(2020-01-01) Krawczyk Kamil; Waclawek Stanislaw Witold; Silvestri Daniele; Torres Mendieta Rafael Omar; Vellora Thekkae Padil Vinod; Řezanka Michal; Černík Miroslav
- ItemThe Use of a Biopolymer Conjugate for an Eco-Friendly One-Pot Synthesis of Palladium-Platinum Alloys(MDPI, 2019-01-01) Silvestri Daniele; Waclawek Stanislaw Witold; Ramakrishnan Rohith Kunjiparambil; Venkateshaiah Abhilash; Krawczyk Kamil; Vellora Thekkae Padil Vinod; Sobel Bartłomiej; Černík Miroslav
- ItemTiO2 immobilised on biopolymer nanofibers for the removal of bisphenol A and diclofenac from water(2017-01-01) Kudlek Edyta; Silvestri Daniele; Waclawek Stanislaw; Vellora Thekkae Padil Vinod; Stuchlík Martin; Voleský Lukáš; Kejzlar Pavel; Černík MiroslavRecently electrospinning has gained significant attention due to unique possibilities to produce novel natural nanofibers and fabrics with controllable pore structure. The present study focuses on the fabrication of electrospun fibres based on gum karaya (GK), a natural tree gum, with polyvinyl alcohol (PVA), and functionalization of the membrane with TiO2 nanoparticles with further methane plasma treatment. The GK/PVA/TiO2 membrane was analyzed with several techniques including: fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM-EDX), and water contact angle, in order to characterize its morphological and physicochemical properties. The GK/PVA/TiO2 membrane was further successfully used for the degradation (under UV irradiation) of bisphenol A and diclofenac from aqueous solution. It was also observed that the degradation kinetics of these compounds are faster in comparison to the UV treatment alone.