Results 331 to 340 of about 379,189 (377)

Surface and colloid properties of biochar and implications for transport in porous media

, 2020
Biochar contains a large amount of colloidal particles. Biochar colloids are generated (1) during pyrolysis of the feedstock, where some of the biochar formed is in the colloidal size fraction, and (2) by the breakdown of larger biochar particles.
Wen Yang, J. Shang, Baoguo Li, M. Flury
semanticscholar   +1 more source

Colloidal suspensions

Journal of Physics: Condensed Matter, 2011
Professor Henk N W Lekkerkerker is a world-leading authority in the field of experimental and theoretical soft condensed matter. On the occasion of his 65th birthday in the summer of 2011, this special issue celebrates his many contributions to science. Henk Lekkerkerker obtained his undergraduate degree in chemistry at the University of Utrecht (1968)
Petukhov, Andrei   +2 more
openaire   +5 more sources

Light-Activated Active Colloid Ribbons.

Angewandte Chemie, 2017
We report a dynamic self-organization of self-propelled peanut-shaped hematite motors from non-equilibrium driving forces where the propulsion can be triggered by blue light.
Zhihua Lin   +5 more
semanticscholar   +1 more source

Stratification in Drying Polymer-Polymer and Colloid-Polymer Mixtures.

Langmuir, 2017
Drying polymer-polymer and colloid-polymer mixtures were studied using Langevin dynamics computer simulations. Polymer-polymer mixtures vertically stratified into layers, with the shorter polymers enriched near the drying interface and the longer ...
Michael P. Howard   +2 more
semanticscholar   +1 more source

Determining Parameters and Mechanisms of Colloid Retention and Release in Porous Media.

Langmuir, 2015
A modeling framework is presented to determine fundamental parameters and controlling mechanisms of colloid (microbes, clays, and nanoparticles) retention and release on surfaces of porous media that exhibit wide distributions of nanoscale chemical ...
S. Bradford, S. Torkzaban
semanticscholar   +1 more source

Colloid Mobilization in a Fractured Soil during Dry-Wet Cycles: Role of Drying Duration and Flow Path Permeability.

Environmental Science and Technology, 2015
In subsurface soils, colloids are mobilized by infiltrating rainwater, but the source of colloids and the process by which colloids are generated between rainfalls are not clear. We examined the effect of drying duration and the spatial variation of soil
S. Mohanty, J. Saiers, J. Ryan
semanticscholar   +1 more source

Ion - Colloid - Colloid Interactions

2007
Natural organic matter (NOM) and metal (hydr)oxides are recognized to be very important geo-colloids due to their omnipresence in nature and due to their high affinity for nutrients and pollutants. These colloids are not only important in soils but are also in sediments, ground water and fresh and marine surface waters (McCarthy and Zachara 1989 ...
Liping Weng   +2 more
openaire   +2 more sources

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