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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...
Palygorskite Occurrence in Central Iranian Aridisols and Sediments
Palygorskite Aridisols Central Iran Tethys Sea Clay Minerals
2011/11/7
Palygorskite Occurrence in Central Iranian Aridisols and Sediments.
CHARACTERISTICS OF A Mg-PALYGORSKITE IN MIOCENE ROCKS,MADRID BASIN (SPAIN)
Esquivias FTIR Spectroscopy Mg-palygorskite Octahedral Occupancy Palygorskite
2011/11/7
Palygorskite in Miocene mudstones, palustrine limestones and calcretes from the Esquivias locality (Madrid Basin, Spain) has been analyzed by X-ray diffraction, infrared spectroscopy, scanning electro...
FTIR spectroscopic study of palygorskite: Influence of the composition of the octahedral sheet
Palygorskite FTIR spectroscopy Structural formulae Octahedral sheet
2011/11/4
The influence of chemical composition to position and intensity of the absorption bands observed in the FTIR spectra of palygorskite has been studied by a detailed comparative study of six samples. Pa...
THE OCCURRENCE OF PALYGORSKITE IN THE YUCATAN PENINSULA: E THNO-HISTORIC AND ARCHAEOLOGICAL CONTEXTS
PALYGORSKITE YUCATAN MAYA CULTIJRE MAYA BLUE
2011/11/4
Palygorskite is a rare clay mineral used by the ancient Mayas for fabricating the Maya blue pigment and for other purposes.]! seems to have been obtained from a restricted area in the Yucatan peninsul...
PALYGORSKITE, SEPIOLITE, AND OTHER CLAY MINERALS IN LEG 41 OCEANIC SEDIMENTS: MINERALOGY, FACIES, AND GENESIS
PALYGORSKITE SEPIOLITE OTHER CLAY MINERALS
2011/11/4
Leg 41 holes, drilled near the northwest margin of Africa, penetrated Mesozoic and Cenozoic sediments.The se sediments contains
montmorillonite, kaolinite, hydromica, chlorite, m...
Synchrotron powder X-ray diffraction study of the structure and dehydration behavior of sepiolite and palygorskite
X-ray diffraction sepiolite palygorskite
2011/11/4
Real-time, temperature-resolved synchrotron powder X-ray diffraction data and Rietveld refinements provide unprecedented insights into mineral behaviors and mechanisms of crystal structure transformat...
ON THE CHEMICAL COMPOSITION OF SEPIOLITE AND PALYGORSKITE
Chemical Composition Octahedral Sheet Octahedra cations Palygorskite Sepiolite
2011/11/4
Many studies of the chemical composition of sepiolite and palygorskite have been carried out using analytical electron microscopy (AEM). According to the literature, a compositional gap exists between...
Adsorption capacity and mineralogical and physico-chemical characteristics of Shuwaymiyah palygorskite (Oman)
Shuwaymiyah palygorskite adsorption capacity mineralogical
2011/11/4
In this paper, Shuwaymiyah palygorskite in the Sultanate of Oman has been characterized mineralogically by X-ray diffraction (XRD) and electron microscopy, chemically by oxide compositions, structural...
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...
Study on Competitive Sorption Capacity of Sr2+/Cs+ in Zeolite and Palygorskite
Adsorptive Capacity Cs+ Palygorskite Sr2+ Zeolite
2011/11/14
Competitive sorption capacity of equal concentration of Cs+ and Sr2+ in zeolite and palygorskite were studied by the intermittence method. zeolite and palygorskite of adsorbed Cs+ and Sr2+ were analys...
A Novel MnOx Supported Palygorskite SCR Catalyst for Lower Temperature NO Removal from Flue Gases
Ammonia TPD Low-Temperature SCR Manganese Oxides Palygorskite
2011/11/14
Palygorskite supported manganese oxide catalysts (MnOx/PG) were prepared for lower temperature selective catalytic reduction (SCR) of NOx by NH3. Catalyst’s SCR activity was estimated at varied temper...
The Effect of Thermal Treatment on the Structure of Palygorskite Used for Flue Gas SO2 Removal
Palygorskite SO2 Thermal Treatment
2011/11/14
Palygorskite is widely used as industrial adsorbent and also potential for flue gas desulfurization by adsorption of SO2. The effect of thermal treatment on Palygorskite’s structural properties and it...
Preparation, Characterization and Properties of Crosslinked Chitosan/Palygorskite Resin with Tannic Acid as Template Molecules
Chitosan (CS) Palygorskite Resin Tannic Acid Template
2011/11/14
The chitosan/palygorskite resins with tannic acid (TA) as template molecules (CPRT) were prepared by emulsion cross-linking technology. Palygorskite (PAL), a kind of natural one-dimensional clay, work...
Adsorptive Removal of 2,6-Dichlorophenol from Aqueous Solution by Surfactant-modified Palygorskite Sorbents: Equilibrium, Kinetics and Thermodynamics
Chemistry Tribology Adsorption and Surface Science Palygorskite Sorbents
2011/11/8
Raw palygorskite was modified by the addition of selected surfactants, viz. hexadecyltrimethylammonium bromide (CTAB), cetylpyridinium bromide (CPB) and octadecyldimethylbenzyl ammonium chloride (ODBA...