نتایج جستجو برای: dubinin radushkevich
تعداد نتایج: 436 فیلتر نتایج به سال:
The purpose of this study was to prepare nano-titanium tannate complex (TTC) and to investigate its adsorption capacity for removal of cationic dyes such as crystal violet (CV) dye. The morphology and the main elements of TTC adsorbent were characterized by scanning electron microscopy (SEM-EDS), while its crystal structure was characterized by X-ray diffraction (XRD). Also, FT-IR spectroscopy ...
Rosaniline-grafted polyurethane foam (Ros-PUF) has been synthesized, by coupling polyether polyol, rosaniline, and toluene diisocyanate, and characterized, by use of UV–visible and IR spectroscopy and thermogravimetric analysis. The Ros-PUF was used as a new sorbent for extraction of trace amounts of Cd(II) and Hg(II) from water by batch and column techniques. Cd(II) and Hg(II) were completely ...
Comparative study of the adsorption of acetaminophen on activated carbons in simulated gastric fluid
Samples of commercial activated carbons (AC) obtained from different sources: Norit E Supra USP, Norit B Test EUR, and ML (Baracoa, Cuba) were investigated. The adsorption of acetaminophen, Co = 2500 mg/L, occured in simulated gastric fluid (SGF) at pH 1.2 in contact with activated carbon for 4 h at 310 K in water bath with stirring. Residual acetaminophen was monitored by UV visible. The resul...
This study aims to determine the textural (specific surface, pore volume and size) mineralogical characteristics of Tanout red clay Zinder region (Niger) in order have data allowing its use as an adsorbent. The methodology is based on analyzes (adsorption N2 at 77 K by Brunauer-Emmett-Teller method), (X-ray fluorescence, X-ray diffraction, thermo-gravimetric analysis, scanning electron microsco...
Abstract Alginate–zinc oxide (Alg–ZnO) biocomposite was synthesized and tested as a chromium ions Cr(VI) adsorbent for environmental applications. Alg–ZnO prepared by the interaction between sodium alginate biopolymer zinc nanoparticles (ZnO–NPs), modified wet chemical method. The solid adsorption characteristics of were characterized Fourier transform infrared spectroscopy (FTIR), X-ray diffra...
ABSTRACT In this study, the ability of chemically activated sugarcane bagasse (CASB) as a biosorbent for removing ibuprofen (IBP) from aqueous solution was evaluated. Sugarcane using hexane and methanol. The effects pH, contact time, IBP concentration, temperature were evaluated in batch studies. Higher removal rates found at pH 2.0. Kinetic studies indicated that biosorption follows pseudo-sec...
The objective of this study was to assess the adsorption potential of activated carbon (AC) asan adsorbent for the removal of Murexide (Mu) from aqueous solutions. The influence of variablesparameters including pH, amount of adsorbent, sieve size of adsorbent, temperature and contact timeon Mu removal was studied. Following optimization of variables, the relation between concentrations ofdye re...
Abstract The present study aimed to evaluate the removal efficiency of two types cationic dyes different classes – methylene blue (MB) and malachite green (MG) from a synthetic effluent using calcium surfactant (CaSF) originated used frying soybean oil. Fourier Transform Infrared Spectroscopy (FTIR) spectra showed that functional groups on surface CaSF can form complexes or bonds with dye molec...
Linde type J zeolite was synthesized out of kaolinite raw material through hydrothermal reactions, once potassium hydroxide used as an activator. The physicochemical characteristics the were surveyed by using XRD, SEM/EDX, and FT-IR analytical methods. Moreover, capability Type for ammonium ion removal from aqueous solutions evaluated in present study batch adsorption experiments. Further, conc...
Adsorption is considered to be one of the most effective technologies widely used in global environmental protection areas. Modeling of experimental adsorption isotherm data is an essential way for predicting the mechanisms of adsorption, which will lead to an improvement in the area of adsorption science. In this paper, we employed three isotherm models, namely: Langmuir, Freundlich, and Dubin...
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