نتایج جستجو برای: sodium adsorption

تعداد نتایج: 239693  

2016
Ningli Wu Zhimin Luo Yanhui Ge Pengqi Guo Kangli Du Weili Tang Wei Du Aiguo Zeng Chun Chang Qiang Fu

Surface molecularly imprinted polymers (SMIPs) for selective adsorption of ampicillin sodium were synthesized using surface molecular imprinting technique with silica gel as a support. The physical and morphological characteristics of the polymers were investigated by scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), elemental...

2004
Santanu Paria C. Manohar Kartic C. Khilar

Adsorption kinetics and equilibrium studies of sodium dodecylbenzenesulfonate (NaDBS) on cellulosic surface are investigated. Modifications in adsorption induced by cationic surfactant cetyltrimethylammonium bromide (CTAB) are studied. It is concluded that the rate of adsorption and the amount of adsorption are increased. Importance of these observations in detergency is indicated.

Journal: Journal of Nanoanalysis 2017
Mohammad Mahjoub Nina Alizadeh

The removal of crystal violet from aqueous solution by NiFe2O4 magnetic nanoparticles treated with sodium dodecyl sulfate was investigated. The modified magnetic nanoparticles were prepared by chemical reaction of a mixture of Ni+2 and Fe+3 ions mixture in aqueous solution at the presence of ammonia and then sodium dodecyl sulfate was utilized as an ionic surfactant to modified the obtained mag...

Journal: :Journal of hazardous materials 2012
Ling Sun Hongwen Yu Bunshi Fugetsu

Graphene oxide (GO) is a highly effective adsorbent, and its absorbing capability is further enhanced through its in situ reduction with sodium hydrosulfite as the reductant. Acridine orange is the selected target to eliminate with GO as the adsorbent. Under identical conditions, GO without the in situ reduction showed a maximum adsorption capacity of 1.4 g g(-1), and GO with the in situ reduct...

Journal: :Acta poloniae pharmaceutica 2006
Bozena Grimling Janusz Pluta

Adsorption of sodium diclofenac was investigated in the presence of sucralfate--a cytoprotective agent preventing gastropathy, adverse effect of diclofenac. Evaluation of adsorption was performed by means of a static method in vitro taking into account pH of the environment, temperature, concentration of the investigated agents and the form of sucralfate. Findings obtained prove that sodium dic...

Journal: :Journal of the American Chemical Society 2004
Sofía Calero David Dubbeldam Rajamani Krishna Berend Smit Thijs J H Vlugt Joeri F M Denayer Johan A Martens Theo L M Maesen

We have developed a united atom force field able to accurately describe the adsorption properties of linear alkanes in the sodium form of FAU-type zeolites. This force field successfully reproduces experimental adsorption properties of n-alkanes over a wide range of sodium cation densities, temperatures, and pressures. The force field reproduces the sodium positions in dehydrated FAU-type zeoli...

Journal: :پژوهش های خاک 0
مجتبی مقبلی دانشجوی کارشناسی ارشد علوم خاک دانشگاه تهران محسن فرحبخش استادیار گروه علوم خاک دانشگاه تهران ناصر برومند استادیار گروه خاکشناسی دانشگاه جیرفت

boron (b) is an important plant essential micronutrient whose availability is influenced by many soil factors. adsorption–desorption processes play a major role in governing the solubility of boron in soil solution and, consequently, its availability to growing plants. to assess the effect of sodium adsorption ratio (sar) on availability of b, adsorption of b was investigated in a sampled calca...

2013
M. Shaaban M. Abid R.A.I. Abou-Shanab

Combined application of organic and inorganic amendments was known to play a significant role in improvement of soil properties. A field experiment was conducted to explore the effects of gypsum, farmyard manure and commercial humic acid application on the amelioration of salt affected (saline sodic) soil. During this study, soil pH, electrical conductivity, sodium adsorption ratio, responses o...

2010
Gang Hu John A. Heitmann Orlando J. Rojas Joel J. Pawlak Dimitris S. Argyropoulos

Sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) was employed to study the sorption behaviors of cellulases on microcrystalline celluloses and hardwood pulp. The adsorption and recovery of cellulases from Aspergillus niger and Trichoderma reesei were investigated at 25 °C. Cellulase recovery was conducted by rinsing adsorbed enzymes with sodium acetate buffer, Milli-Q water,...

Journal: :Applied and environmental microbiology 1982
M Schiffenbauer G Stotzky

Coliphages T1 and T7 of Escherichia coli were absorbed by kaolinite (K) and montmorillonite (M). Maximum adsorption of T7 (96%) to M was greater than that of T1 (84%), but the adsorption of both coliphages to K was the same (99%). Positively charged sites (i.e., anion exchange sites) on the clays appeared to be primarily responsible for the adsorption of T1 to K but only partially responsible f...

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