An activated carbon (AC) with a high surface area of 4320.7 m2/g was synthesized via the chemical and thermal processing walnut residues. The resulting charcoal characterized by various techniques, including Brunauer–Emmett–Teller (BET) analysis, scanning electron microscopy (SEM), IR spectroscopy. prepared studied for its capacity to adsorb CO2 gas. When exposed 60 min in closed chamber at atm...

mcm-41 is one of the groups of mesoporous materials that have wide applications as adsorbents, ion exchangers and catalyst supports. in this work spherical and rod-like mcm-41s were synthesized in homogeneous and heterogeneous reaction media, respectively. for synthesis of these materials the cationic surfactant cetyltrimethylammonium bromide (ctmabr) was used as template and tetraethylorthosil...

in this paper we report synthesis of fe2tio5-5a zeolite (z5a) nanocomposites with 5%, 10% and 20% weight percent of fe2tio5 in 5a zeolite in stearic acid media after calcination of the gel samples obtained at 600-900°c for 2 hrs. the powder x-ray diffraction (xrd) patterns have been used for characterization of the prepared samples. the scanning electron microscopy (sem) images and x-ray energy...

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...

Nanoemulsion technique based on Ouzo effect was applied for the fast and simple synthesis of Ag3PO4 at room temperature. X-ray powder diffraction analysis Raman spectroscopy reviled that synthesized single-phase. Using scanning electron microscopy analysis, it found particles were near-spherical shape with an average diameter 100 nm. The high value specific surface area obtained measured by Bru...

Abstract The fabrication of crosslinked polyaniline/ Pterocladia capillacea -activated carbon composite (CrossPANI/P-AC) at different ratios (1:0, 1:0.2, 1:0.6, and 1:1) was studied. CrossPANI/P-AC composites were fabricated by the in situ polymerization aniline using hydrogen chloride as an acidic dopant, ammonium persulfate initiator, while synthesized chemical activation method incorporated ...

Abstract This study aims to make a catalyst from biomass waste in the form of coconut coir and apply it transesterification process cocodiesel. The raw material for cocodiesel this was coconut-based cooking oil that also could pollute environment. research method includes analysis, catalyst’s preparation, characterization with Brunauer-Emmet-Teller (BET), X-ray fluorescence (XRF), diffraction (...

In this work, low-cost and high permeation NaA zeolite membrane was successfully prepared on kaolinite support by in-situ crystallization using secondary growth method. The effect of synthesis conditions including temperature time crystallization, water ratio studied aiming to improve the quality performance membrane. thoroughly characterized many techniques such as X-ray diffraction, scanning ...

Composite elastomer microwave absorbers were developed based on two-phase hybrid filler. Nanosized magnetite was synthesized for the first time in porous texture of activated carbon. Combination fillers with high dielectric losses such as active carbon, and magnetic into filler is considered a new Hightech generation specific technical characteristics. The influence obtained shielding effective...

This study investigates the efficacy of a prepared Ni/θ-Al 2 O 3 catalyst during pyrolytic conversion Parachlorella kessleri HY-6 and compares results with non-catalytic conversion. The was characterized by techniques such as Brunauer–Emmett–Teller (BET) for surface area, acidity, X-ray powder diffraction (XRD). Isoconversional combined kinetic methods were used to kinetics process. at 10, 20, ...