Results 31 to 40 of about 225,905 (303)

Ceramic Nanofiltration Membranes: Creating Nanopores by Calcination of Atmospheric-Pressure Molecular Layer Deposition Grown Titanicone Layers

open access: yesMembranes
Ceramic membrane technology, whether applied as a stand-alone separation technology or in combination with energy-intensive approaches like distillation, is a promising solution for lower energy alternatives with minimal carbon footprints. To improve the
Harpreet Sondhi   +7 more
doaj   +1 more source

Tailor-Made Modification of Commercial Ceramic Membranes for Environmental and Energy-Oriented Gas Separation Applications

open access: yesMembranes, 2022
Ceramic membranes have been considered as potential candidates for several gas separation processes of industrial interest, due to their increased thermal and chemical stability compared to polymeric ones.
Triantafyllia K. Grekou   +3 more
doaj   +1 more source

Wetting criteria for the applicability of membrane distillation [PDF]

open access: yes, 1987
Membrane distillation can only be applied on liquid mixtures which do not wet a microporous hydrophobic membrane. Solutions of inorganic material in water have such high values of surface tension (γLgreater-or-equal, slanted72x10−3 N/m) that the non ...
Bargeman, D.   +4 more
core   +3 more sources

Performance of PVDF-TiO2 Membranes during Photo-Filtration in the Presence of Inorganic and Organic Components

open access: yesMembranes, 2022
In this study, the anti-fouling performance of PVDF-TiO2 composite membranes, indicated by their permeate flux, was studied with different types of synthetic feed solutions.
Duc-Trung Tran   +4 more
doaj   +1 more source

Nanoporous silica-based protocells at multiple scales for designs of life and nanomedicine. [PDF]

open access: yes, 2015
Various protocell models have been constructed de novo with the bottom-up approach. Here we describe a silica-based protocell composed of a nanoporous amorphous silica core encapsulated within a lipid bilayer built by self-assembly that provides for ...
Brinker, C Jeffrey   +3 more
core   +2 more sources

A Brief Overview of the Microstructural Engineering of Inorganic–Organic Composite Membranes Derived from Organic Chelating Ligands

open access: yesMembranes, 2023
This review presents a concise conceptual overview of membranes derived from organic chelating ligands as studied in several works. The authors’ approach is from the viewpoint of the classification of membranes by matrix composition.
Sulaiman Oladipo Lawal   +1 more
doaj   +1 more source

Strategies for studying permeation at voltage-gated ion channels [PDF]

open access: yes, 1991
Voltage-dependent ion channels are presently thought to consist of several distinct functional regions: (a) activation gates, (b) inactivation gates, and permeation pathways.
Lester, Henry A.
core   +1 more source

Molecular layer deposited metalcone hybrid layers for solvent-resistant nanofiltration membranes: surface wetting and permeation

open access: yesApplied Surface Science Advances
Solvent-resistant nanofiltration (SRNF) has emerged as a promising alternative to conventional distillation for removing impurities, recovering solutes, and regenerating solvents from diluted process streams.
Harpreet Sondhi   +7 more
doaj   +1 more source

Techno-Economic Assessment in a Fluidized Bed Membrane Reactor for Small-Scale H2 Production: Effect of Membrane Support Thickness

open access: yesMembranes, 2019
This paper investigates the influence of the support material and its thickness on the hydrogen flux in Palladium membranes in the presence of sweep gas in fluidized bed membrane reactors.
Gioele Di Marcoberardino   +4 more
doaj   +1 more source

Reversibility of fouling on ultrafiltration membrane by backwashing and chemical cleaning: differences in organic fractions behaviour [PDF]

open access: yes, 2016
Membrane fouling is an inherent phenomenon in ultrafiltration (UF) membrane processes, making it necessary to periodically perform backwashes (BW) and chemical cleanings in place (CIP) to restore the initial permeability of the membrane. The objective of
Bernat Camí, Xavier   +5 more
core   +2 more sources

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