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XRF and nitrogen adsorption studies of acid-activated palygorskite
palygorskite, micropore, mesopore, macropore, acid activation, X-ray fluorescence, BET, HCl,
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2011/11/3
The effects of acid activation on the chemical composition, surface area and pore structure of palygorskite from Xuyi (Jiangsu, P.R. China) were investigated systematically using X-ray fluorescence (X...
XRF and nitrogen adsorption studies of acid-activated palygorskite
palygorskite micropore mesopore macropore acid activation X-ray fluorescence BET HCl H2SO4 H3PO4
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2011/12/14
The effects of acid activation on the chemical composition, surface area and pore structure of palygorskite from Xuyi (Jiangsu, P.R. China) were investigated systematically using X-ray fluorescence (X...
Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly(acrylic acid)/attapulgite composite
Ammonium nitrogen Composite adsorbent Kinetics Isotherms Adsorption mechanism
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2011/10/10
In thiswork, a novelcomposite adsorbent with three-dimensional cross-linked polymeric networks based on chitosan (CTS) and attapulgite (APT) was prepared via in situ copolymerization in aqueous soluti...
Fast removal of ammonium nitrogen from aqueous solution using chitosan-g-poly(acrylic acid)/attapulgite composite
Ammonium nitrogen Composite adsorbent Kinetics Isotherms Adsorption mechanism
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2011/12/14
In thiswork, a novelcomposite adsorbent with three-dimensional cross-linked polymeric networks based on chitosan (CTS) and attapulgite (APT) was prepared via in situ copolymerization in aqueous soluti...
Nitrogen-isotope record of fluid-rock interactions in the Skiddaw Aureole and granite, English Lake District
Nitrogen-isotope record fluid-rock interactions Skiddaw Aureole granite English Lake District
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2012/4/1
The Skiddaw Granite and its contact metamorphic aureole in the English Lake District provide an
excellent opportunity to test the capability of the N-isotope system to trace devolatilization and larg...
Characterization of Tubular Chrysotile by Thermoporometry, Nitrogen Sorption, Drifts, and TEM
Chrysotile asbestos Infrared spectroscopy N2 adsorption and desorption Thermoporometry Transmission electron microscopy X-ray diffraction
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2011/12/30
The maximum crystal radius Rn of ice in hollow wet chrysotile tubes is established by thermoporometry to be between 2.8 and 3.2 nm, and the internal pore volume Vn of the tubes to be between 0.008 and...
Vapor-Phase Sorption and Polymerization of Phenols by Smectite in Air and Nitrogen
Adsorption Mass spectrometry Nitrogen Phenols Pollution Polymerization Smectite
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2012/1/13
Reactions of smectite with phenols were investigated to understand the role of clay minerals in abating transport of these organic pollutants to ground water. Sorption of o-methylphenol, o-chloropheno...
Microporosity in Montmorillonite from Nitrogen and Carbon Dioxide Sorption
Microporosity Montmorillonite Carbon Dioxide Sorption
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2012/2/13
Nitrogen adsorption at 78亱K and carbon dioxide sorption at 195亱K on homoionic lithium, sodium, caesium, calcium, lanthanum and hexane diammonium saturated montmorillonites have been examined by means ...
Interlamellar and Multilayer Nitrogen Sorption by Homoionic Montmorillonites
Interlamellar Multilayer Nitrogen Sorption Homoionic Montmorillonites
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2011/11/18
Abstract: Nitrogen sorption by various homoionic montmorillonites was studied at 78°K. The adsorption isotherms in the relative pressure range P/P0 = 0·05–0·25 were found to be either Type I or Type I...
The Effect of Cation Exchange of Tris(Ethylenediamine)Cobalt(III) for Sodium on Nitrogen Sorption by Montmorillonite
Tris(Ethylenediamine)Cobalt(III) Sodium Nitrogen Sorption Montmorillonite
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2011/11/18
Abstract: The cation exchange process between tris(ethylenediamine)cobalt(III) and Na+ on montmorillonite was studied by atomic absorption spectrophotometry, X-ray diffraction, differential thermal an...
Surface Area of Homoionic Illite and Montmorillonite Clay Minerals as Measured by the Sorption of Nitrogen and Carbon Dioxide
Surface Area Homoionic Illite Montmorillonite Clay Minerals Nitrogen Carbon Dioxide Sorption
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2012/2/20
The surface areas obtained by application of the B.E.T. theory to adsorption isotherms of nitrogen and carbon dioxide gases at 77°K and 195°K respectively on homoionic samples of illite and montmorill...
Surface Area of Vermiculite with Nitrogen and Carbon Dioxide as Adsorbates
Surface Area Vermiculite Nitrogen Carbon Dioxide Adsorbates
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2012/2/20
Surface-area studies were made on several homoionic vermiculites with both nitrogen and carbon dioxide as adsorbates. These studies show that only very slight penetration occurs between individual ver...
Surface Area of Montmorillonite from the Dynamic Sorption of Nitrogen and Carbon Dioxide
Montmorillonite the Dynamic Sorption Nitrogen Carbon Dioxide
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2011/11/17
Abstract: Surface area determinations were made on a montmorillonite with various cations emplaced on the exchangeable sites, utilizing nitrogen and carbon dioxide as adsorbates at 77癒 and 195癒, respe...