Results 11 to 20 of about 6,629 (204)

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

open access: yesGlob 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   +4 more
europepmc   +2 more sources

Effect of isomorphic replacement of palygorskite on its heavy metal adsorption performance

open access: yesAIP Advances, 2023
Isomorphism is a common phenomenon in clay minerals, which is one of the main reasons for the change of mineral chemical composition and physical and chemical properties.
Ritong Huang   +6 more
doaj   +1 more source

Incorporation of Different Metal Ion for Tuning Color and Enhancing Antioxidant Activity of Curcumin/Palygorskite Hybrid Materials

open access: yesFrontiers in Chemistry, 2021
Curcumin is one of the dietary dyes extracted from turmeric and used for prevention and treatment of various illnesses. However, the low bioavailability and poor stability of curcumin limits its relevant applications.
Shue Li   +6 more
doaj   +1 more source

Palygorskite in Leicestershire [PDF]

open access: yesNature, 1962
CURRENT geological investigations into the ancient rocks of Leicestershire have revealed three occurrences of the clay mineral palygorskite. These are in the lower quarry at Bardon Hill, the Cliffe Hill quarry and the Warren quarry at Enderby. At all three localities the palygorskite is present in joints in dioritic rocks.
A. M. EVANS, R. J. KING
openaire   +1 more source

Impact of Surface Roughness on Partition and Selectivity of Ionic Liquids Mixture in Porous Electrode

open access: yesNanomaterials, 2022
Understanding the influence of surface roughness on the adsorption of ions from an ionic liquids (ILs) mixture is essential for designing supercapacitors.
Gulou Shen   +6 more
doaj   +1 more source

Trioctahedral entities in palygorskite: Near-infrared evidence for sepiolite-palygorskite polysomatism [PDF]

open access: yesEuropean Journal of Mineralogy, 2011
The mixed dioctahedral-trioctahedral character of Mg-rich palygorskite has been previously described by the formula yMg5 Si8 O20(OH)2(OH2)4(1–y)[xMg2Fe2(1–x)Mg2 Al2] Si8 O20(OH)2(OH2)4, where y is the trioctahedral fraction of this two-chain ribbon mineral with an experimentally determined upper limit of y 0.5 and x is the FeIII content in ...
Stathopoulou, Elizabeth T.   +6 more
openaire   +3 more sources

Self-cleaning properties of TiO2/palygorskite and TiO2/halloysite nanocomposite coatings [PDF]

open access: yes, 2014
Tubular halloysite and microfibrous palygorskite clay mineral combined with nanocrystalline TiO 2 are involved in the preparation of nanocomposite films on glass substrates via sol-gel route at 450°C.
Kaplani, Eleni   +3 more
core   +1 more source

Diffusion Of Indigo Molecules Inside The Palygorskite Clay Channels [PDF]

open access: yes, 2011
The search for durable dyes led several past civilizations to develop artificial pigments. Maya Blue (MB), manufactured in pre-Columbian Mesoamerica, is one of the best known examples of an organic-inorganic hybrid material.
Anne, Michel   +8 more
core   +4 more sources

Controlled Rate Thermal Analysis and Differential Scanning Calorimetry of Sepiolites and Palygorskites [PDF]

open access: yes, 2003
A series of sepiolites, palygorskites and "Rocky Mountain Leather" clay minerals have been analysed by controlled rate thermal analysis and differential scanning calorimetry.
Ding, Zhe, Frost, Raymond
core   +2 more sources

Elucidating the crystal-chemistry of Jbel Rhassoul stevensite (Morocco) by advanced analytical techniques [PDF]

open access: yes, 2008
The composition of Rhassoul clay is controversial regarding the nature of the puremineral clay fraction which is claimed to be stevensite rather than saponite.
A. Maazouz   +28 more
core   +3 more sources

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