Sorption is a collective term encompassing both adsorption and absorption processes by which atoms, ions, or molecules from a fluid phase (gas or liquid) become associated with a solid or another condensed phase. In scientific contexts, it describes equilibrium and kinetic phenomena governing partitioning of species between phases, driven by intermolecular forces, electrostatic interactions, chemical bonding, or physical entrapment. Sorption is characterized by isotherms, rate laws, and capacity parameters, and plays a central role in topics such as chromatography, contaminant transport, catalysis, surface chemistry, and materials science, where it controls retention, mobility, and bioavailability of chemical species.
Membranes of vertically aligned carbon nanotubes (VaCNT) can be used to clean or desalinate water at high flow rate and low pressure. Recently, researchers of Karlsruhe Institute of Technology (KIT) and partners carried out ...
Nanophysics
Feb 21, 2024
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Global warming has been attributed to the sharp increase in heat-trapping greenhouse gas emissions, in particular CO2 emissions. Carbon capture technology, such as using adsorbents to capture and store CO2 from ambient air, ...
Nanomaterials
Jul 6, 2023
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194
Many people use hydrogels without knowing it. As superabsorbents in nappies, for example, hydrogels absorb a lot of liquid. In the process, the initially dry material becomes jelly-like, but it does not wet. Some people place ...
Nanomaterials
Apr 27, 2023
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108
Electrocatalysis is an interface-dominated process, in which the activity of the catalyst highly relates to the adsorption/desorption behaviors of the reactants/intermediates/products on the active sites. From the perspective ...
Nanomaterials
Feb 16, 2023
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99
NUST MISIS researchers have created a reusable and environment friendly sorbent for cleaning antibiotics from wastewater. The proposed sorbent has a number of advantages compared to already known analogs—low production costs, ...
Nanomaterials
Oct 26, 2022
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Efficient purification processes that separate impurities from air and water are necessary to sustain life on Earth. To this end, carbon materials have long been used for deodorizing, separating, and removing harmful anion ...
Nanomaterials
Oct 20, 2022
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64
Efficient adsorbents for industrial wastewater treatment are important to minimize potential environmental damage. In particular, organic dyes, as a significant group of industrial pollutants, are usually highly water soluble, ...
Nanomaterials
Aug 3, 2022
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116
Over the past few years, scientists have demonstrated how cage-like, porous structures made of silicon and oxygen and measuring only billionths of a meter in size can trap noble gasses like argon, krypton, and xenon. However, ...
Nanophysics
Sep 1, 2021
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Ligands are much like nanosized barnacles, binding to many kinds of surfaces. This form of adsorption is crucial for a range of chemical processes, from purification and catalysis to the design of nanomaterials.
Nanomaterials
Jul 14, 2021
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