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Removal of Cu(II) Ions from Aqueous Solution by KH-570 Modified Attapulgite Clay
Adsorption Copper Ion Modified Attapulgite Clay (ATP) by KH-570
2011/11/15
Attapulgite clay (ATP) was modified by Silane coupling agent (KH-570) to creat more efficient sites for Cu(II) adsorption. The natural and KH-570 modified attapulgite clay were characterized by Fourie...
A pH-Sensitive Composite Hydrogel Based on Sodium Alginate and Medical Stone:Synthesis, Swelling, and Heavy Metal Ions Adsorption Properties
composite hydrogel sodium alginate medical stone swelling adsorption pH-sensitivity
2011/12/14
New pH-sensitive composite hydrogels were synthesized by free-radical graft copolymerization among sodium alginate (NaAlg), sodium acrylate (NaA), and medical stone (MS). Fourier transform infrared sp...
The sorption of Eu(III) on calcareous soil: effects of pH, ionic strength, temperature, foreign ions and humic acid
Sorption Europium HA Temperature Ionic strength Foreign ions
2011/11/10
The sorption of Eu(III) on calcareous soil as a function of pH, humic acid (HA), temperature and foreign ions was investigated under ambient conditions. Eu(III) sorption on soil was strongly pH depend...
Application of the FT-IR/PAS and DRS Methods for Studying Heavy Metal Ions Sorption on the Inorganic Sorbents
Metal Ions Sorption Inorganic Sorbents
2011/11/7
The scope of this study was the removal of heavy metal ions, ammonium and organic substances by ion exchange from municipal wastewaters. Clinoptilolite, bentonite, and palygorskite are especially inte...
THE FT-IR/PAS AND DRS METHODS FOR STUDYING HEVY METAL IONS SORPTION ON THE INORGANIC SORBENTS
sorption kinetics heavy metals detection spectroscopic metods
2011/11/7
The scope of this study was the removal of heavy metal ions, ammonium and organic substances by ion exchange from municipal wastewaters. Clinoptilolite,
bentonite, and palygorskite are especially int...
Ion Exchange of Zeolite Na-Pc with Pb2+, Zn2+, and Ni2+ Ions
Heavy Metals Ion Exchange Perlite Selectivity Selectivity Coefficient Zeolite Pc Zeolitization
2011/12/6
Abstract: This paper examines the ion-exchange properties of synthetic zeolite Na-Pc, which was produced from perlite-waste fines and has a SiO2:Al2O3 ratio of 4.45:1 and a cation-exchange capacity (C...
Reactions of copper and cadmium ions in aqueous solution with goethite, lepidocrocite, mackinawite, and pyrite
copper and cadmium irons goethite lepidocrocite mackinawite andpyrite
2012/3/31
TheuptakeofCuandCdinaqueoussolutionbyinteractionwiththesurfacesofcare-
fullysynthesized?nelysizedparticlesofgoethite,lepidocrocite,mackinawite,andpyrite
wasmeasuredasafunctionofinitialmetalconcentra...
Effect of Interaction Between Clay Particles and Fe3+ Ions on Colloidal Properties of Kaolinite Suspensions
Colloid Electron Microscopy Flocculation Iron Kaolinite Sedimentation Zeta Potential
2011/12/22
Abstract: Fine kaolinite suspensions were mixed with unaged or aged FeCl3 in this experiment. The interaction between clay particles and Fe3+ hydrolysis products was studied by transmission electron m...
Migration of Cu Ions in Cu Montmorillonite Heated With and Without Alkali Halides
Cu-montmorillonite K-halide IR and ESR spectra
2011/12/28
Cu montmorillonite heated with or without potassium halide was studied by IR and ESR spectroscopy, supplemented by XRD measurements, microprobe and chemical analyses. It appears that on heating Cu mon...
Instability of SiO2 Colloids and Sorption of Ca2+ Ions
Ca2+ induced instability Ca2+ sorption Flocculation Gelation Precipitation Silica colloids Two distinct flocculates
2011/12/28
SiO2 sols were made unstable by addition of Ca2+ ions. The resulting states of instability were classified as gelation, flocculation, and precipitation by means of observation, by checking the Tyndall...
Effect of the Presence of Aluminum ions in Iron Solutions on the Formation of Iron Oxyhydroxides (FeOOH) at Room Temperature Under Acidic Environment
Akaganeite Aluminum Hydroxy-aluminum ions Iron hydrolysis Transmission electron microscopy X-ray diffraction
2011/12/29
The hydrolytic behavior of Fe solutions at room temperature under acidic conditions was investigated. In the presence of Al ions, with Cl and NO3 as associated anions, the Fe hydrolysis began almost i...
Size of Mica Domains and Distribution of the Adsorbed Na-Ca Ions
Electrophoretic mobility Mica domains Photon correlation spectroscopy
2011/12/29
Mica domains have received less attention in the literature than smectite quasi-crystals. This study was conducted to determine whether mica crystals form domains in suspension, the conditions in whic...
Charge Reversal of Kaolinite by Hydrolyzable Metal Ions: An Electroacoustic Study
Adsorption Cadmium Charge reversal Cobalt Copper Electroacoustics Electrokinetics Kaolin Metal ions (hydrolyzable)
2011/12/31
Electroacoustic measurements at 1 MHz, using the Electro-Sonic Amplitude (ESA), on a kaolinite suspension provide a ready method for following the adsorption of hydrolyzable metal ions onto the clay s...
THE COORDINATION OF ALUMINUM IONS IN THE PALYGORSKITE STRUCTURE
Al-coordination MAS-NMR Palygorskite
2011/11/4
Abstract--NMR spectra ofPF1 - 1 Floridan palygorskite strongly suggest that AI 3§ occurs only in octahedral coordination. X-ray microanalysis of the palygorskite fibers indicate a chemical composition...
The Coordination of Aluminum Ions in the Palygorskite Structure
Al-coordination MAS-NMR Palygorskite
2011/12/31
NMR spectra of PF1-1 Floridan palygorskite strongly suggest that Al3+ occurs only in octahedral coordination. X-ray microanalysis of the palygorskite fibers indicate a chemical composition defined by ...