Results 171 to 180 of about 3,253 (216)
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Dehydration Transformation in Palygorskite
Transactions of the Indian Ceramic Society, 1984Structural changes accompanying dehydration and thermal transformations in palygorskite have been critically reviewed. Salient features of the dehydration mechanisms proposed by various authors have been discussed. Results of some X-ray and electron microscopic studies made by the authors on this problem, clarifying some points in greater detail, have ...
S. Bhattacherjee, S. Lokanatha
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Sepiolite–Palygorskite Occurrences in Turkey
2011Abstract Sepiolite–palygorskite occurrences and deposits in Turkey can be classified as sedimentary (marine and lacustrine), hydrothermal and pedogenic types based on their geological settings and mineralogical features. Marine types are formed within the evaporative clayey–sandy-carbonate rocks of Upper Cretaceous–Lower Miocene in the shallow ...
Yalcin, Huseyin, Bozkaya, Omer
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Sepiolite and Palygorskite in Japan
1984Abstract Recent investigations on palygorskite and sepiolite from Japan are summarized in relation to their mode of occurrence and mineral genesis. Description of the Japanese palygorskites has been confined to only two specimens from the Kuzuu district, represented by “karst region” where a thick sequence of carbonate rocks crops out extensively ...
N. Imai, R. Otsuka
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Applied Clay Science, 2018
Abstract Palygorskite (PAL) is a promising natural clay mineral for the preparation of bionic super anti-wetting coatings, a new application field of PAL. Here, the effects of modification of PAL on superamphiphobicity and microstructure of the PAL@fluorinated polysiloxane (PAL@fluoroPOS) superamphiphobic coatings were systematically studied.
Penglin Zhang +3 more
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Abstract Palygorskite (PAL) is a promising natural clay mineral for the preparation of bionic super anti-wetting coatings, a new application field of PAL. Here, the effects of modification of PAL on superamphiphobicity and microstructure of the PAL@fluorinated polysiloxane (PAL@fluoroPOS) superamphiphobic coatings were systematically studied.
Penglin Zhang +3 more
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Amitriptyline removal using palygorskite clay
Chemosphere, 2016With the increased detections of commonly used pharmaceuticals in surface water and wastewater, extensive attentions were paid recently to the fate and transport of these pharmaceuticals in the environment. Amitriptyline (AMI) is a tricyclic antidepressant widely applied to treat patients with anxiety and depression.
Yo-Lin Tsai +11 more
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Sonochemical preparation of palygorskite nanoparticles
Applied Clay Science, 2011Palygorskite nanoparticles were prepared by sonochemical reaction. The products were characterized by X-ray fluorescence analysis (XRF), X-ray powder diffraction (XRD), thermal gravimetry analysis (TGA), differential thermal analysis (DTA) and infrared spectroscopy.
Zahra Darvishi, Ali Morsali
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Methylation of Sepiolite and Palygorskite with Diazomethane
Clays and Clay Minerals, 1986AbstractThe methylation of the fibrous clays, sepiolite and palygorskite, should be facilitated by their large content of surface silanol groups and the low acidity and inaccessibility of coordinated water molecules. Infrared spectroscopy showed that the reaction of diazomethane with these clays resulted in the methylation of their silanol surface ...
María C. Hermosín, Juan Cornejo
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Silanized palygorskite for lipase immobilization
Journal of Molecular Catalysis B: Enzymatic, 2009Abstract Lipase from Candida lipolytica has been immobilized on 3-aminopropyltriethoxysilane-modified palygorskite support. Scanning electron micrographs proved the covalently immobilization of C. lipolytica lipase on the palygorskite support through glutaraldehyde.
Jianhua Huang, Yuanfa Liu, Xingguo Wang
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Synthesis and characterization of ZnO/palygorskite
Applied Clay Science, 2010Abstract This paper reports the synthesis of ZnO/palygorskite (ZnO/PGS) composites prepared by coating palygorskite (PGS) fibres with ZnO nanoparticles. The samples were characterized by thermogravimetric-differential scanning calorimetry (TG-DSC), X-ray diffraction (XRD), Brunauer–Emmet–Teller (BET), Fourier transform infrared spectroscopy (FTIR ...
Chengli Huo, Huaming Yang
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Construction and Building Materials, 2008
Abstract Microwave irradiation synthesize organic palygorskite has been successfully prepared. FTIR, XDR and morphology analysis indicate that 5 min microwave irradiation of palygorskite (PA) is an appropriate time to improve the structure of PA.
Ji Zhang +4 more
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Abstract Microwave irradiation synthesize organic palygorskite has been successfully prepared. FTIR, XDR and morphology analysis indicate that 5 min microwave irradiation of palygorskite (PA) is an appropriate time to improve the structure of PA.
Ji Zhang +4 more
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