Silica xerogels modified with amine groups: Influence of synthesis parameters on porous structure and sorption properties

2019 ◽  
Vol 281 ◽  
pp. 32-43 ◽  
Author(s):  
Mariusz Barczak ◽  
Piotr Borowski
2019 ◽  
pp. 325-333
Author(s):  
Evgeniya Vladimirovna Veprikova ◽  
Ivan Petrovich Ivanov ◽  
Nikolay Vasil'yevich Chesnokov ◽  
Boris Nikolayevich Kuznetsov

The effect of temperature of aspen bark pre-carbonization on evolution of a porous structure and sorption properties of the carbon sorbents prepared in results of thermo alkaline activation of carbonizats with hydroxide potassium was studied.  The relationship of a sorption of methylene blue and vitamin B12 by the sorbents from aspen bark to a volume and size of pores was established. It was shown, that the carbon sorbents capacity at а methylene blue are defined by pores with width 0.86–2.95 nm, and at a vitamin B12 – 3.18–6.89 nm. Comparation of the porous structures parameters and sorption properties of the carbon sorbents from aspen bark and commercial activated carbon for medical purposes was maked. Kinetic of markers sorption onto sorbents with different porous structure was studied and the corresponding rate constants were calculated. The possibility preparation of a carbon sorbent have high rate of vitamin B12 sorption (rate constant is 3.953 min–1) was shown.  The determinations of a sorption capacity of sorbents in conditions assume at enterosorbents test were carry out. It was determined, that sorbents, prepped from aspen bark, exceeds the sample of industrial activated carbon for medical purposes at sorption capacity of methylene blue and vitamin B12 in 1.7 and 1.5 time, correspondingly.


1998 ◽  
Vol 145 (8) ◽  
pp. 2677-2683 ◽  
Author(s):  
J. Divisek ◽  
M. Eikerling ◽  
V. Mazin ◽  
H. Schmitz ◽  
U. Stimming ◽  
...  

2015 ◽  
Vol 88 (3) ◽  
pp. 430-435 ◽  
Author(s):  
S. D. Kolosentsev ◽  
V. N. Solovei ◽  
V. L. Kiseleva ◽  
E. A. Spiridonova ◽  
V. V. Samonin

Fuel ◽  
2010 ◽  
Vol 89 (9) ◽  
pp. 2623-2627 ◽  
Author(s):  
Aryuna D. Budaeva ◽  
Evgeniy V. Zoltoev

Polymer ◽  
2020 ◽  
Vol 190 ◽  
pp. 122191
Author(s):  
Iwona Jakubowska ◽  
Stanisław Popiel ◽  
Mateusz Szala ◽  
Michał Czerwiński ◽  
Maciej Chrunik ◽  
...  

2020 ◽  
Vol 236 ◽  
pp. 116000 ◽  
Author(s):  
Biljana M. Pejić ◽  
Ana D. Kramar ◽  
Bratislav M. Obradović ◽  
Milorad M. Kuraica ◽  
Andrijana A. Žekić ◽  
...  

2014 ◽  
Vol 21 (4) ◽  
Author(s):  
Alexander V. Pastukhov ◽  
Vadim A. Davankov ◽  
Vladimir V. Volkov ◽  
Sergei V. Amarantov ◽  
Kseniya I. Lubentsova

Nano Letters ◽  
2003 ◽  
Vol 3 (6) ◽  
pp. 713-718 ◽  
Author(s):  
Aleksey Vishnyakov ◽  
Peter I. Ravikovitch ◽  
Alexander V. Neimark ◽  
Martin Bülow ◽  
Qing Min Wang

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