Results 11 to 20 of about 2,594 (147)

Clays for Low-Carbon Cements: Overview, Progress, and Challenges. [PDF]

Glob Chall
This review provides a critical overview of recent developments of activated clays to function as artificial pozzolans. After a thorough description of the clays that yield good pozzolanic performances, selected examples are given on thermal and mechanical activations. Chiefly, general correlations are extracted from reported data despite its scattered
Koufany I, Santacruz I, De la Torre AG, Rodríguez-Ruiz MD, Aranda MAG.   +4 more
europepmc   +2 more sources

Nanostructured Clays Used as Carriers for Controlled Delivery of Antibacterial Compounds From Direct Restorative Dental Materials: A Scoping Review. [PDF]

Clin Exp Dent Res
ABSTRACT Objective Through a scoping review, this study meticulously mapped and characterized these nanostructured clays used to release antibacterial active compounds from direct restorative dental materials. Material and Methods The systematic approach involved searches in the PubMed/MEDLINE, Lilacs, Web of Science, Scopus, ScienceDirect, and Embase ...
de Barbosa BFS, Ferreira Neto JL, de Oliveira FJD, Leitão JSO, Costa MJF, Sette-de-Souza PH, Fechine PBA, Feitosa VP, Borges BCD.   +8 more
europepmc   +2 more sources

Nanocomposites for Water Treatment, Photocatalysis, and Challenges: A Systematic Review. [PDF]

Glob Chall
A nanocomposite synthesized via sol‐gel, chemical vapor deposition, or in‐situ polymerization effectively removes dyes and heavy metals from water, yielding purified water. Additionally, it exhibits high photocatalytic degradation efficiency under visible or UV light.
Sharshir SW, Ataya S, El-Attar HG, Lotfy LA, El-Naggar AA, El-Harairy A, Kedra MM, Alaraj AM, Sowayan A, Khan R, Abdelfatah M, El-Shaer A.   +11 more
europepmc   +2 more sources

Influence of temperature and time on the Eu3+ reaction with synthetic Na-Mica-n (n = 2 and 4) [PDF]

, 2016
Bentonite is accepted as the best clay material for the engineered barrier of Deep Geological Repositories (DGRs). The performance of clay as the main component of the engineered barrier in the DGR has been intensively studied and the structure of the ...
Alba Carranza, María Dolores, Cota, Agustín, García Jiménez, María José, Osuna, Francisco J., Pavón González, Esperanza   +4 more
core   +1 more source

Phase-structural irregularity of the mechanically activated saponite-containing material surface

Journal of Physics: Conference Series, 2018
The purpose of the studies was to evaluate the possibility of using mechanically activated saponite-containing material (SCM) as an additional binder in cementitious binders of hydration type of hardening. According to the working hypothesis, the activated SCM is able to show the binding properties.
M V Morozova, M A Frolova, T A Makhova, V S Lesovik   +3 more
openaire   +1 more source

Comparative Analysis of Properties of PVA Composites with Various Nanofillers: Pristine Clay, Organoclay, and Functionalized Graphene

Nanomaterials, 2019
Poly(vinyl alcohol) (PVA) nanocomposites containing three different nanofillers are prepared and compared in terms of their thermal properties, morphologies, and oxygen permeabilities.
Jin-Hae Chang
doaj   +1 more source

Spitzer IRS Spectroscopy of the 10 Myr-old EF Cha Debris Disk: Evidence for Phyllosilicate-Rich Dust in the Terrestrial Zone [PDF]

, 2011
We describe Spitzer IRS spectroscopic observations of the 10 Myr-old star, EF Cha. Compositional modeling of the spectra from 5 {\mu}m to 35 {\mu}m confirms that it is surrounded by a luminous debris disk with LD/L\star ~ 10-3, containing dust with ...
Currie, Thayne, Lisse, Carey M., Rieke, George H., Sicilia-Aguilar, Aurora, Su, Kate   +4 more
core   +4 more sources

Structure formation in the «clay soil – carbide sludge» dispersed system [PDF]

Нанотехнологии в строительстве
Introduction. Clay soil is a multiphase, multicomponent aluminosilicate dispersed system with specific properties determined not only by its composition but also by the formation of coagulative and transition contacts (binds) between the soil particles ...
Yulia V. Sokolova, Maria A. Frolova, Arkady M. Ayzenshtadt, Evgeny V. Korolev   +3 more
doaj   +1 more source

Evaluation of rare earth on layered silicates under subcritical conditions: Effect of the framework and interlayer space composition [PDF]

, 2013
Clay-based minerals are considered to be an important component in backfill barriers due to both their ability to seal and adsorb radioactive waste and to interact chemically with it under subcritical conditions. Herein, we describe a systematic study of
Alba Carranza, María Dolores, Chain Villar, Pablo, Cota Reguero, Agustín, Pavón González, Esperanza, Pazos Zarama, Mery Carolina   +4 more
core   +1 more source

Sedimentary talc in Neoproterozoic carbonate successions [PDF]

, 2014
Mineralogical, petrographic and sedimentological observations document early diagenetic talc in carbonate-dominated successions deposited on two early Neoproterozoic (~ 800–700 million years old) platform margins.
Johnston, David T, Knoll, Andrew Herbert, Macdonald, Francis Alexander, Strauss, Justin Vincent, Tosca, Nicholas   +4 more
core   +1 more source