Zobrazeno 1 - 10
of 177
pro vyhledávání: '"Urszula Narkiewicz"'
Autor:
Iwona Pełech, Piotr Staciwa, Daniel Sibera, Konrad Sebastian Sobczuk, Wiktoria Majewska, Ewelina Kusiak-Nejman, Antoni W. Morawski, Kaiying Wang, Urszula Narkiewicz
Publikováno v:
Molecules, Vol 29, Iss 18, p 4348 (2024)
Modification of titanium dioxide using ethylenediamine (EDA), diethylamine (DEA), and triethylamine (TEA) has been studied. As the reference material, titanium dioxide prepared by the sol–gel method using titanium(IV) isopropoxide as a precursor wa
Externí odkaz:
https://doaj.org/article/4d54fdbd612d456fbd2fc3fd86cfb23a
Autor:
Daniel Sibera, Iwona Pełech, Piotr Staciwa, Robert Pełech, Ewa Ekiert, Gulsen Yagmur Kayalar, Urszula Narkiewicz
Publikováno v:
Molecules, Vol 29, Iss 17, p 4090 (2024)
The adsorption properties of microporous carbon materials modified with iron citrate were investigated. The carbon materials were produced based on resorcinol-formaldehyde resin, treated in a microwave assisted solvothermal reactor, and next carboniz
Externí odkaz:
https://doaj.org/article/4e0a76b3d01e4e3c8692dde06d0673cf
Autor:
Iwona Pełech, Daniel Sibera, Piotr Staciwa, Konrad Sobczuk, Ewelina Kusiak-Nejman, Agnieszka Wanag, Antoni W. Morawski, Kenneth Schneider, Richard Blom, Urszula Narkiewicz
Publikováno v:
Molecules, Vol 29, Iss 15, p 3646 (2024)
Titanium dioxide was synthesized via hydrolysis of titanium (IV) isopropoxide using a sol–gel method, under neutral or basic conditions, and heated in the microwave-assisted solvothermal reactor and/or high-temperature furnace. The phase compositio
Externí odkaz:
https://doaj.org/article/6f8141c9481348d4991dd2a201640604
Autor:
Antoni W. Morawski, Katarzyna Ćmielewska, Ewelina Kusiak-Nejman, Piotr Staciwa, Joanna Kapica-Kozar, Ewa Ekiert, Iwona Pełech, Urszula Narkiewicz
Publikováno v:
Journal of CO2 Utilization, Vol 75, Iss , Pp 102553- (2023)
The development of an effective photocatalyst for CO2 reduction is currently being addressed by many scientists. This study concerns the influence of the addition of carbon spheres (CS) on photoactivity of TiO2 and ZnO. The photocatalysts were tested
Externí odkaz:
https://doaj.org/article/504bd571a92f44b9881b518c10f75ffc
Autor:
Izabela Kuryliszyn-Kudelska, Witold Dobrowolski, Monika Arciszewska, Branka Hadžić, Nebojsa Romčević, Maja Romčević, Daniel Sibera, Urszula Narkiewicz
Publikováno v:
Magnetochemistry, Vol 9, Iss 6, p 139 (2023)
The aim of this study was to investigate the magnetic properties of mixed nanocrystalline Zn/manganese oxide compounds synthesized by a hydrothermal method. These compounds are designed as (ZnO)1−n(MnO)n, where index n ranges from 0.05 to 0.60. The
Externí odkaz:
https://doaj.org/article/30294b8519e64a65b67c64e349f99c9a
Autor:
Antoni W. Morawski, Piotr Staciwa, Daniel Sibera, Dariusz Moszyński, Michał Zgrzebnicki, Urszula Narkiewicz
Publikováno v:
ACS Omega, Vol 5, Iss 4, Pp 1966-1973 (2020)
Externí odkaz:
https://doaj.org/article/02ea3b8d8597473aad1186f2e299b349
Autor:
Iwona Pełech, Ewelina Kusiak-Nejman, Piotr Staciwa, Daniel Sibera, Joanna Kapica-Kozar, Agnieszka Wanag, Filip Latzke, Karolina Pawłowska, Adrianna Michalska, Urszula Narkiewicz, Antoni W. Morawski
Publikováno v:
Molecules, Vol 27, Iss 20, p 6802 (2022)
This work aimed to obtain hybrid composites based on photoactive metal oxide and carbon having adsorption properties. The materials, composed of titanium dioxide or zinc oxide and spherical carbon, were obtained from resorcinol-formaldehyde resin, tr
Externí odkaz:
https://doaj.org/article/ff9e83cbdd6d46f3a4ab1016aa1b4347
Autor:
Iwona Pełech, Piotr Staciwa, Daniel Sibera, Robert Pełech, Konrad S. Sobczuk, Gulsen Yagmur Kayalar, Urszula Narkiewicz, Robert Cormia
Publikováno v:
Molecules, Vol 27, Iss 17, p 5379 (2022)
The adsorption properties of microporous spherical carbon materials obtained from the resorcinol-formaldehyde resin, treated in a solvothermal reactor heated with microwaves and then subjected to carbonization, are presented. The potassium-based acti
Externí odkaz:
https://doaj.org/article/b2af204d3208434bb452f81a58e4ea0b
The Effect of the Modification of Carbon Spheres with ZnCl2 on the Adsorption Properties towards CO2
Autor:
Iwona Pełech, Piotr Staciwa, Daniel Sibera, Ewelina Kusiak-Nejman, Antoni W. Morawski, Joanna Kapica-Kozar, Urszula Narkiewicz
Publikováno v:
Molecules, Vol 27, Iss 4, p 1387 (2022)
Zinc chloride and potassium oxalate are often applied as activating agents for carbon materials. In this work, we present the preparation of ZnO/carbon spheres composites using resorcinol-formaldehyde resin as a carbon source in a solvothermal reacto
Externí odkaz:
https://doaj.org/article/751aad57b04d47cb8fad014eaf44988a
Autor:
Andżelika Gęsikiewicz-Puchalska, Michal Zgrzebnicki, Beata Michalkiewicz, Agnieszka Kałamaga, Urszula Narkiewicz, Antoni W. Morawski, Rafal Wrobel
Publikováno v:
Molecules, Vol 26, Iss 24, p 7520 (2021)
Zeolite 13X (NaX) was modified through ion-exchange with alkali and alkaline earth metal cations. The degree of ion exchange was thoroughly characterized with ICP, EDS and XRF methods. The new method of EDS data evaluation for zeolites was presented.
Externí odkaz:
https://doaj.org/article/f7353f3ffb664883842972b2104a19d4