Results 61 to 70 of about 374,588 (287)

Selection of elastomeric membranes for the removal of volatile organics from water [PDF]

open access: yes, 1993
A wide range of homogeneous elastomeric membranes has been prepared using dicumylperoxide as a general cross-linking agent. The membranes have been used for both equilibrium sorption measurements and steady-state pervaporation experiments to study ...
Mulder, M.H.V.   +4 more
core   +2 more sources

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Performance of Thermal-, Acid-, and Mechanochemical-Activated Montmorillonite for Environmental Protection from Radionuclides U(VI) and Sr(II)

open access: yesEng, 2023
Low-cost sorption materials based on the clay mineral of the smectite group—montmorillonite—were used for the removal of radionuclides uranium (VI) and strontium (II) from contaminated water.
Iryna Kovalchuk
doaj   +1 more source

Sorption vacuum trap [PDF]

open access: yes, 1970
Modified sorption trap for use in high vacuum systems contains provisions for online regeneration of sorbent material. Trap is so constructed that it has a number of encapsulated resistance heaters and a valving and pumping device for removing gases from
Barrington, A. E., Caruso, A. J.
core   +1 more source

Fast‐Responding O2 Gas Sensor Based on Luminescent Europium Metal‐Organic Frameworks (MOF‐76)

open access: yesAdvanced Functional Materials, EarlyView.
Luminescent MOF‐76 materials based on Eu(III) and mixed Eu(III)/Y(III) show rapid and reversible changes in emission intensity in response to O2 with very short response times. The effect is based on triplet quenching of the linker ligands that act as photosensitizers. Average emission lifetimes of a few milliseconds turn out to be mostly unaffected by
Zhenyu Zhao   +5 more
wiley   +1 more source

Zeolite-filled silicone rubber membranes. Experimental determination of concentration profiles [PDF]

open access: yes, 1994
Permeant concentrations in silicalite-filled silicone rubber membranes during pervaporation of propanol/water mixtures were measured using multi-layered membranes.
Bargeman, D.   +6 more
core   +2 more sources

Decoupling Size and Electronic Effects in Doped SrTiO3 Photocatalysts Through Surface Area–Normalized CO2 Hydrogenation Rates

open access: yesAdvanced Functional Materials, EarlyView.
Exploring the photocatalytic reverse water–gas shift (RWGS) reaction on doped SrTiO3 nanoparticle films, reveals that normalizing catalytic rates by the catalyst's specific surface area (SSA) disentangled surface area effects from the catalyst's intrinsic material properties.
Dikshita Bhattacharyya   +6 more
wiley   +1 more source

Sorbents based on the manganese oxides designed for selective removal of lithium ions

open access: yesХімія, фізика та технологія поверхні
Two manganese oxide-based adsorbents were synthesized using a precipitation method followed by hydrothermal treatment of reagents. The templating method was employed to create the sorbents’ selectivity, ensuring efficient extraction of lithium ions from
L. Y. Kotynska   +4 more
doaj   +1 more source

Conversion of D-Fructose into Ethyl Lactate Over a Supported SnO2–ZnO/Al2O3 Catalyst

open access: yesColloids and Interfaces, 2019
The study is directed to the search of a simple effective catalyst for ethyl lactate obtained from fructose as renewable raw material. A series of SnO2-containing oxides prepared by impregnation of alumina were characterized by several techniques in ...
Svitlana V. Prudius   +2 more
doaj   +1 more source

IMOBILISASI ZEOLIT BEKAS PENYERAP LIMBAH RAFINAT DARI PRODUKSI RADIOISOTOP MOLIBDENUM-99 DENGAN POLIMER [PDF]

open access: yes, 2009
Rafinat waste that produced by Instalation of Radioisotop Production is contained uranium. The research of uranium sorption by zeolite Alumino Silico Phosphate (ASP) and selected of best waste loading for immobilisation of saturated zeolite uranium ...
Firda, Rayyen
core  

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