Serwis Infona wykorzystuje pliki cookies (ciasteczka). Są to wartości tekstowe, zapamiętywane przez przeglądarkę na urządzeniu użytkownika. Nasz serwis ma dostęp do tych wartości oraz wykorzystuje je do zapamiętania danych dotyczących użytkownika, takich jak np. ustawienia (typu widok ekranu, wybór języka interfejsu), zapamiętanie zalogowania. Korzystanie z serwisu Infona oznacza zgodę na zapis informacji i ich wykorzystanie dla celów korzytania z serwisu. Więcej informacji można znaleźć w Polityce prywatności oraz Regulaminie serwisu. Zamknięcie tego okienka potwierdza zapoznanie się z informacją o plikach cookies, akceptację polityki prywatności i regulaminu oraz sposobu wykorzystywania plików cookies w serwisie. Możesz zmienić ustawienia obsługi cookies w swojej przeglądarce.
Carbon nanotubes (CNTs) have emerged as efficient adsorbents since their first discovery in 1991. However, due to their huge specific surface areas and strong van der Waals binding energies, CNTs are prone to aggregate. Therefore, controlled dispersion of CNTs in solution or composite matrix remains a challenge so far. Herein, novel pillared CNT composites—2c-G-MWCNTs, with increased specific surface...
Adsorption of uranium (VI) from aqueous solution by Fe 3 O 4 @TiO 2 composites was studied by batch experiments. The adsorbent was characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction and magnetic measurements. The adsorptions of uranium (VI) from aqueous solution on Fe 3 O 4 @TiO 2 were fitted to the Langmuir...
We present a study of uranium (VI) adsorption in aqueous solutions by magnetic oxine (ferroferric oxide/oxine composite). Batch experiments of uranium (VI) adsorption were conducted, investigating the significance of solution pH, contact time, ionic strength, and temperature on uranium sorption efficiency. The results suggest that maximum adsorption capacity is 125mgg−1 when the initial uranium (VI)...
The adsorption of Rhodamine-B (RhB) onto treated rice husk-based activated carbon was investigated in this paper. The influences of initial RhB concentration, temperature and pH on dye adsorption were analyzed. Initial RhB concentration and temperature played important roles in this adsorption process, and pH had a little effect on RhB adsorption. Adsorption kinetics, equilibrium and thermodynamics...
A chitosan sample was modified by phosphorylation reactions on the hydroxyl site. The chemical structure of the resulting grafted chitosan was studied by Fourier transform infrared (FTIR) and X-ray photoelectron spectroscopy (XPS) analyses. The adsorption behaviors of the phosphorylated chitosan on two oxide minerals, copper carbonate (malachite) and manganese carbonate (rhodochrosite) were studied...
XPS measurements showed that octyl hydroxamic acid (OHA) adsorbed on pyrochlore by both chemisorption (N 1s binding energy peak at around 399eV) and physisorption (N 1s binding energy peak at above 400eV). The ratio of the integrated areas of the physisorption peak and chemisorption peak increased from nearly zero to about 4, and remained at 4 with increasing OHA concentrations. However, adsorption...
Magnetic Mg–Al layered double hydroxide was modified with citrate acid using a ion-exchange technique. It showed higher adsorption capacity for the uranium(VI) ions compared with magnetic Mg–Al layered double hydroxide without intercalating with citrate. This increasing capacity was mainly attributable to the formation of the citrate–metal complexes in the interlayer of the magnetic citrate·Mg–Al...
Podaj zakres dat dla filtrowania wyświetlonych wyników. Możesz podać datę początkową, końcową lub obie daty. Daty możesz wpisać ręcznie lub wybrać za pomocą kalendarza.