Results 21 to 30 of about 427,895 (336)

Synthesis of ТіО2- based photocatalysts deposited on stainless steel

Доповiдi Нацiональної академiї наук України, 2019
The supported Ti-containing catalyst on the surface of a stainless steel foil is prepared by the low-temperature ion implantation method. It shows the high photocatalytic activity in the process of neutralizing benzene in aqueous solutions under the ...
O.V. Sanzhak, D.V. Brazhnyk, V.V. Goncharov, V.O. Zazhigalov, F.A. Azimov   +4 more
doaj   +1 more source

Study of the physical-chemical and sorption properties of SnO₂ prepared by mechanochemical and microwave routes

Хімія, фізика та технологія поверхні, 2018
There are many methods for synthesis of tin dioxide SnO2, namely sol-gel, precipitation. However, these methods do not allow to regulate the physical-chemical properties in wide limits in the synthesis stage.
M. M. Samsonenko, O. I. Zakutevskyy, S. V. Khalameida, J. Skubiszewska-Zięba, M. F. Kovtun   +4 more
doaj   +1 more source

Fertilisation with compost: effects on soil phosphorus sorption and on phosphorus availability in acid soils. [PDF]

, 2019
Phosphate mineral fertilisers are manufactured from non-renewable resources.Soil fertilisation with composts is considered a good source of reuse nutrients such as phosphorus (P).
Monteiro, M.C.H.
core   +1 more source

Spatial moment analysis of transport of nonlinearly absorbing pesticides using analytical approximations [PDF]

, 2008
Analytical approximations were derived for solute transport of pesticides subject to Freundlich sorption, and first-order degradation restricted to the liquid phase.
Beltman, W.H.J., Boesten, J.J.T.I., Zee, S.E.A.T.M., van der   +2 more
core   +2 more sources

Determination of molybdenum oxidation state on the mechanochemically treated MoO₃

Хімія, фізика та технологія поверхні, 2015
The molybdenum oxidation degree in the MoO3 samples after mechanochemical treatment in various media (air, water, ethanol) has been studied by titration, EPR and XANES methods.
N. S. Kopachevska, A. K. Melnyk, I. V. Bacherikova, V. A. Zazhigalov, K. Wieczorek-Ciurowa   +4 more
doaj   +1 more source

Catalytic Production of Levulinic and Formic Acids from Fructose over Superacid ZrO₂–SiO₂–SnO₂ Catalyst

Colloids and Interfaces, 2022
Catalytic conversion of fructose to levulinic and formic acids over tin-containing superacid (H0 = −14.52) mixed oxide was studied. Mesoporous ZrO2–SiO2–SnO2 (Zr:Si:Sn = 1:2:0.4) was synthesized by the sol–gel method.
Nataliia Hes, Artur Mylin, Svitlana Prudius   +2 more
doaj   +1 more source

One-pot synthesis of ?-valerolactone from tetrahydrofurfuryl alcohol and ?-valerolactone amidation over Сu/ZnO-Al₂O₃ catalyst

Хімія, фізика та технологія поверхні, 2016
It has been found that tetrahydrofurfuryl alcohol transforms into ?-valerolactone over Сu/ZnO-Al2O3 catalyst at 270–280°С. ?-Valerolactone can be used for obtaining biodegradable polyesters and copolymers.
V. V. Brei, A. M. Varvarin, S. V. Prudius   +2 more
doaj   +1 more source

On the Kinetic Mechanisms of the Reduction and Oxidation Reactions of Iron Oxide/Iron Pellets for a Hydrogen Storage Process

Energies, 2022
This work aims at investigating the kinetic mechanisms of the reduction/oxidation (redox) reactions of iron oxide/iron pellets under different operating conditions. The reaction principle is the basis of a thermochemical hydrogen storage system.
Bernd Gamisch, Lea Huber, Matthias Gaderer, Belal Dawoud   +3 more
doaj   +1 more source

Sorption of Perfluorochemicals to Granular Activated Carbon in the Presence of Ultrasound [PDF]

, 2011
Perfluorochemicals (PFCs) are emerging pollutants of increasing public health and environmental concern due to their worldwide distribution, environmental persistence, and bioaccumulation potential.
Cheng, Jie, Hoffmann, Michael R., Vecitis, Chad D., Zhao, Deming   +3 more
core   +2 more sources

The physico-chemical properties of ті-containing stainless steel composites and its photoactivity

Хімія, фізика та технологія поверхні, 2019
The present study aims to obtain the supported Ti-containing catalyst on a surface of stainless steel foil by low temperature ionic implantation method.
O. V. Sanzhak, D. V. Brazhnyk, V. V. Honcharov, V. A. Zazhigalov, F. A. Azimov   +4 more
doaj   +1 more source