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Chemists find path to 'new blue' in meteorite minerals（图）
Chemists path new blue meteorite minerals
2020/1/4
Scientist Mas Subramanian of Oregon State University, who made history a decade ago with the accidental discovery of the first new blue inorganic pigment in more than two centuries, is again pushing f...
A combined synchrotron powder diffraction and vibrational study of the thermal treatment of palygorskite-indigo to produce Maya blue
synchrotron powder diffraction palygorskite-indigo Maya blue
2011/11/11
The heating process (30-200 QC) of a palygorskite-indigo mixture has been monitored in situ and simultaneously by synchrotron powder diffraction and Raman spectroscopy. During this process, the dye an...
The Fundamental Guest-Host Interaction in Maya Blue Pigments:DFT-CPMD Calculations
Fundamental Guest-Host Interaction Maya Blue DFT-CPMD Calculations
2011/11/7
The color shift of the Maya Blue(MB) inorganic-organic pigment,obserbed upon moderate heating,reflects fundamental guest-host interactions leading to the unusual stability of Maya Blue.
In-Situ Identification of Palygorskite in Maya Blue Samples Using X-Ray Powder Diffraction
Palygorskite X-Ray Powder Diffraction Maya Blue Samples
2011/11/4
In spite of the abundance of colors found in the murals and other objects that correspond to the Classic Mayan period (600-900 A.D.), a peculiar hue captured the interest of researchers. The most well...
Crystal structure refinement of a sepiolite/indigo Maya Blue pigment using molecular modelling and synchrotron diffraction
sepiolite indigo Maya Blue pigment molecular mechanics Rietveld method
2011/11/7
Maya Blue is an artificial pigment used in Pre-Columbian America, renowned for its chemical stability. The pigment can be considered a precursor of modern inclusion compounds as a hosting microporous ...
Effect of biotite content of hydrogels on enhanced removal of methylene blue from aqueous solution
Hydrogel Biotite Methylene blue Adsorption equilibrium Kinetics
2011/12/14
A series of chitosan-g-poly(acrylic acid)/biotite (CTS-g-PAA/BT) hydrogels with unique clay biotite (BT) were prepared and used to remove cationic dye methylene blue (MB) from aqueous solution by batc...
Adsorption behavior of methylene blue from aqueous solution on the hydrogel composites based on carboxymethyl cellulose and attapulgite
adsorption attapulgite carboxymethyl cellulose composite methylene blue
2011/10/10
A series of carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites were synthesized for the removal of cationic dye methylene blue. Various factors affecting the uptake behavior...
Absorption of Eriochrome Blue Black on Polyaniline/Attapulgite Nanocomposites
Adsorption Attapulgite (ATP) Eriochrome Blue Black Nanocomposity Polyaniline (PANI)
2011/11/15
Polyaniline/attapulgite (PANI/ATP) nanocomposites doped by hydrochloric acid (HCl) were prepared by in-situ polymerization method. The structure and absorption mechanism for eriochrome blue black of n...
Response surface methodology was employed to optimize the adsorption parameters of Methylene Blue onto a chitosan-g-poly(acrylic acid)/halloysite hydrogel composite with 50% halloysite content. Such o...
Spectroscopic characterization of a sepiolite-based Maya Blue pigment
Maya Blue sepiolite indigo spectroscopy host/guest interaction
2011/11/7
Maya blue, an ancient pigment used by Mayas in Mesoamerica, can be considered an ancestor of modern nano-composites as it forms by grinding and heating the guest indigo molecule with a hosting clay fr...
Adsorption Behavior of Methylene Blue from Aqueous Solution by the Hydrogel Composites Based on Attapulgite
adsorption attapulgite carboxymethyl cellulose composite methylene blue
2011/12/13
A series of carboxymethyl cellulose-g-poly (acrylic acid)/attapulgite hydrogel composites were synthesized for the removal of cationic dye methylene blue. Various factors affecting the uptake behavior...
Fast removal of methylene blue from aqueous solution by adsorption onto chitosan-g-poly (acrylic acid)/attapulgite composite
Composites Attapulgite Chitosan Adsorption Methylene blue
2011/12/13
Batch adsorption experiments were carried out for the removal of methylene blue (MB) cationic dye from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composites (CTS-g-PAA/APT) as a...
Fast removal of methylene blue from aqueous solution by adsorption onto chitosan-g-poly (acrylic acid)/attapulgite composite
Composites Attapulgite Chitosan Adsorption Methylene blue
2011/10/10
Batch adsorption experiments were carried out for the removal of methylene blue (MB) cationic dye from aqueous solution using chitosan-g-poly (acrylic acid)/attapulgite composites (CTS-g-PAA/APT) as a...
Methylene Blue Dimerization does not Interfere in Surface-Area Measurements of Kaolinite and Soils
Dye Adsorption Ethylene Glycol Adsorption Kaolinite Surface Methylene Blue Dimerization Specific Surface Area
2011/12/5
Abstract: Methylene blue (MB) was adsorbed from aqueous solutions onto a kaolinite and four soil samples to determine the effects of MB dimerization on the measured surface area. Adsorption isotherms ...
Molecular Dynamics Simulations of the Adsorption of Methylene Blue at Clay Mineral Surfaces
Adsorption of Methylene Blue • Clay Cation-Exchange Capacity Determination • Clay Surface-Area Determination • Molecular Dynamics Simulations
2011/12/6
Abstract: Molecular dynamics simulations were performed of the adsorption of methylene blue (MB) on model beidellite, montmorillonite, and muscovite mica surfaces, using a previously determined empiri...