Cobalt catalysts supported on γ-alumina, ceria and γ-alumina-ceria, with 10 or 20%wt of cobalt load, prepared by the wet impregnation method and characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), field emission transmission electron microscopy (FETEM), N2 adsorptiondesorption isotherms (BET/BJH methods), energy-dispersive X-ray spectroscopy (EDX), X-ray photoemission ...

Mesoporous silica SBA-15 was modified in a three-step process to obtain a material with poly-N-isopropylacrylamide (PNIPAAM) grafted onto the inner pore surface. Water sorption calorimetry was implemented to characterize the materials obtained after each step regarding the porosity and surface properties. The modification process was carried out by (i) increasing the number of surface silanol g...

Molecular Dynamics (MD) simulations were performed on a gramicidin A dimer model representing a transmembrane channel. Different from previous simulations the peptide was in contact with bulk water at both ends of the dimer to guarantee a realistic description of the hydration of the biomolecule. The flexible BJH model for water was employed in the simulations and the gramicidin-water, gramicid...

Silver ion imprinted polymer (IIP) was synthesized in the presence of Ag(I)-N,N’-bis(salicylidene) ethylenediamine (salen) complex using 4-vinylpyridine as the functional monomer, ethylene glycol dimethacrylate (EGDMA) as the crosslinker, and 2,2-azobis(isobutyronitrile) (AIBN) as the initiator. The Ag(I)-imprinted polymer (IIP) particles were characterized by SEM (scanning electron microscope)...

In this work, BSEA-SBA-15 was prepared for the first time, which was prepared by covalently anchoring Schiff-base compound (N,N´-bis(salicylidene)ethylenediamine (BSEA) on SBA-15 by hydrothermal method. The structure and physicochemical properties were determined by elemental analysis, XRD, nitrogen adsorption–desorption, thermogravimetric analysis and FTIR spectroscopy, SEM, BET surface area a...

A simple and green synthetic strategy to prepare BaO/TiO2-ZrO2 as a solid base catalyst was reported. These materials with various amounts of BaO were prepared by the adsorption method. The physical and chemical properties of BaO/TiO2-ZrO2 were investigated by X-ray diffraction, X-ray fluorescence, specific surface area and BJH pore size distribution, FT-IR spectroscopy, scanning electron micro...

Blast furnace slag (BFS) is usually regarded as a by-product of the steel industry, which can be utilized raw material for preparing BFS-based zeolite (BFSZ). In this study, BFSZ was successfully prepared from BFS using alkaline fusion-hydrothermal synthesis. Via analyses by XRD, SEM, EDX, XRF, FT-IR, elemental mapping and BET/BJH methods, crystallization almost complete at 6 h. With further in...

In this study, the analysis of study effect reagents upon receipt cargo was highlighted—nanocomposite bentonite sorbents using Sol–gel technology and results obtained were highlighted. The comparative surface calculated at 77 K a nitrogen adsorption isotherm. size pore catalysts determined from data on desorption isotherms, respectively, relative pressure R/ro=0.99 in accordance with BJH (Baret...

MCM-41 and Zn-MCM-41 were successfully synthesized using hydrothermal impregnation methods. The silica mesoporous was confirmed by characterizing the material XRD, SEM-EDS, BET-BJH analyses. XRD results showed three main peaks at angles of 2θ = 2.40° (100), 3.87° (200), 4.49° (210), which are characteristics materials with hexagonal structures. SEM analysis that surface morphology Zn-modified f...