Low silica zeolites are synthesized generally by sol-gel method in water. In this study, efforts were made to prepare low silica zeolites from sodium aluminate and sodium silicate, in the presence of alcohols, at 373 K under an atmospheric pressure. It was of our special interest to investigate how the addition of various alcohols into water affects the type of zeolites synthesized during cryst...

The adhesion of granulocytes to a glass surface is both theoretically and experimentally investigated. The basic results are: (i) The adherence process of cells to a surface can be described by the Langmuir adsorption isotherm which also holds for the adsorption of molecules to a substrate. (ii) The granulocytes do not interact with each other during the adsorption/desorption process. (iii) The...

<p>Batch adsorption studies of heavy metals were carried out using activated charcoal groundnut shell powder as an adsorbent material. The was collected and synthesized by chemical synthesis to convert it into form. prepared adsorbent’s pore size & surface area analyzed BET analysis N2 – desorption process. XRD techniques the crystalline structure adsorbent, functional groups beha...

In this study, mesoporous MCM-41 has been modified by incorporation of aluminum ion asa rapid, simple and inexpensive method for modification. The adsorbent is characterized usingpowder X-ray diffraction and nitrogen adsorption-desorption isotherm data. The distributioncoefficient of cadmium ion on the mesoporous aluminosilicates has been enhanced with theincrease of the aluminum in the framewo...

A series of batch and column laboratory experiments were conducted to determine adsorption coefficients of mercury (II) for Oak Ridge Reservation (ORR) soil. The experimental setup used soil collected from an area offsite of the ORR, in a location upstream of East Fork Poplar Creek (EFPC). The batch equilibrium experiments were conducted in the range of 600 to 5,000 μg/L of initial Hg(II) conce...

a series of fe3o4 supported on mesoporous fdu-12 silica systems were prepared by the hydrothermal conditions. the surface properties of the functionalized catalyst were analyzed by a series of characterization techniques like ftir, xrd, n2 adsorption–desorption and tem. xrd and adsorption–desorption analysis shows that the mesostructure of fdu silica remains intact after fe3o4 modifications, wh...

ZnAlCO3 hydrotalcite materials modified by Cu2+ ions were synthesized the co-precipitation method according to molar ratios of (Cu2+ + Zn2+):Al3+ as 7:3. Thus, contain various from 0–3.5 in samples. The characterized X-ray diffraction pattern (XRD), FT–IR, EDS, SEM, N2 adsorption/desorption isotherm (BET), and UV–Vis DRS spectrum. a layered double hydroxide structure—such hydrotalcite. specific...

in the present investigation, a novel adsorbent, ionic liquid modified magnetic nanoparticles (il-fe3o4), was successfully synthesized and characterized by ft-ir spectroscopy, thermogravimetric analysis (tga), xrd analysis, scanning electron microscopy (sem) and theory of brunauer, emmett, and teller (bet) for removal of reactive orange 122 (ro-122) from aqueous solutions. the effects of variou...

The degradation and adsorption behavior of dibutyl phthalate (DBP) in methanogenic phase refuse was investigated through laboratory microcosm experiments. The results showed that the half-life of DBP in the sterilized refuse was 5.9 times higher than in unsterilized samples, but that it decreased by 35.8% when dominant bacterial strains were added. Different concentrations of DBP did not have o...

In the present study, activated carbons of Eichornea crasssipes(EC), Sugarcane bagassae(SB), Tea waste(TW) and Guava leaf(GL) were prepared from agricultural wastes and used as an adsorbents for the removal of Acid Blue 92 (AB92) dye from aqueous solution. The effects of pH, adsorbent dosage, initial dye concentration and contact time on the extent removal of AB92 has been studied by Batch adso...