نتایج جستجو برای: diffractogram
تعداد نتایج: 104 فیلتر نتایج به سال:
Objective: Growing resistance of microorganisms to potent antibiotics has renewed a great interest towards investigating bactericidal properties of nanoparticles and their nanocomposites as an alternative. Therefore, the present study has been carried out to investigate and compare the antibacterial properties of copper (Cu) and zerovalent iron (Feo) nanoparticles. Methods: Nanoparticles were s...
Polymer-derived ceramic (PDC) process is an attractive technique that has high yield. This versatile method allows for fabrication of porous carbon nanotube (CNT)/ silicon carbide (SiC) hybrid materials important temperature structural applications. Although several forms CNT assemblies have been used with the PDC approach, fabricated CNT/ceramic nanocomposites were either one or two dimensiona...
Use of alkali-pretreated rice straw and untreated rice straw as substrates for enzyme production under solid-state cultivation was investigated. Cellulase produced from untreated rice straw showed higher activity of FPase, CMCase, β-glucosidase, and xylanase at 6.25 U/g substrate, 111.31 U/g substrate, 173.71 U/g substrate, and 433.75 U/g substrate respectively, as compared to 1.72 U/g substrat...
A novel, scalable, solution-based method suitable for the control of ZnO crystal morphology at moderate temperature from rods/stars to rose-shaped, flowerlike structures is presented here. The synthesized ZnO roselike crystals are composed by wide nanosheets folded several times on themselves. This study represents the first step toward the full understanding of the growth mechanism that led to...
In this study, cellulose nanofibrils (CNFs) were successfully isolated from coconut palm petiole residues falling off naturally with chemical pretreatments and mechanical treatments by a grinder and a homogenizor. FTIR spectra analysis showed that most of hemicellulose and lignin were removed from the fiber after chemical pretreatments. The compositions of CNFS indicated that high purity of nan...
The aim of this research was to evaluate solid state interaction between amoxicillin trihydrate and potassium clavulanate. The interaction was observed by Differential Scanning Calorimeter (DSC), X-Ray Powder Diffractometer (XRPD), Fourier Transforms Infra Red (FTIR) and Scanning Electron Microscope (SEM). Mixtures of amoxicillin trihydrate and potassium clavulanate were prepared in molar ratio...
Thin films of boron nitride in its sp 2 -hybridized form (sp -BN) have potential uses UV devices and dielectrics. Here, we explore chemical vapor deposition (CVD) -BN on various cuts sapphire: Al O 3 [Formula: see text], (0001) using two CVD processes with different precursors triethylborane trimethylborane. Fourier transform infrared spectroscopy shows that grows all the sapphire substrates; x...
The α-Fe2O3 was synthesized using the hydrolysis method to obtain nano coral-shaped morphology. adsorption isotherm and surface analysis upon CO2 were identified. capacity for measured at 8.66 cm3/g (17.00 mg/g). Experimental data from 25 ℃ best fits with Freundlich model which implies process is favorable multilayer on heterogeneous surface. A decrease in crystallite peaks X-ray diffractogram ...
Abstract Barium halides based was typical host for phosphor material applied as imaging plate computed radiography application. In this study, the materials on barium has been synthesized via hydrothermal technique. The aim of study is to determine feasibility technique synthesis materials. Three samples have prepared study. All had fix Ba and Br composition but differentiated by third i. e F, ...
Objective: The coordination and electrochemistry-related effects uses of piperidine dithiocarbamate (pipdtc) piperazine (pzdtc) are the main topics this article. Method: An environment friendly electroless bath was created using a very small amount biodegradable methanesulphonic bronsted acid, Glyoxylic acid as reducing agent, Xylitol non-toxic natural polyhydroxylic complexing agent potassium ...
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