The thermal conductivity and stability of any nanofluid are essential thermophysical properties. These properties affected by many parameters, such as the nanoparticles, base fluid, surfactant, sonication time used for mixing. In this study, multi-walled carbon nanotubes (MWCNTs) were selected additive particles, remaining variables tested to reach most suitable that can be cool photovoltaic/th...

Abstract This study aimed to create CTAB-modified bentonite organoclay (Bt@CTAB) by mixing the naturally occurring mineral (Bt) with cationic surfactant cetyltrimethylammonium bromide (CTAB). Elemental analysis, N 2 adsorption–desorption isotherm, scanning electron microscopy (SEM), FTIR spectroscopy, XRD, and thermogravimetric (TGA) analysis have been employed analyze both unmodified Bt Bt@CTA...

MnZn ferrite precursor powders were prepared by the nano in situ composite method. Three surfactants, which include polyethylene glycol 400 (PEG-400), cetyltrimethyl ammonium bromide (CTAB), and sodium dodecyl sulfate (SDS), usedM impact of surfactants on sol solutions was studied. X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, Raman a field emission scanning electron ...

Hematite (α-Fe2O3) nanorods were synthesized by hydrothermal method using Cetyltrimethylammonium bromide (CTAB) as a surfactant agent. To study optical, nanostructural properties, and to control the morphology and shape of nanorods, 0.025 mol L-1, 0.05 mol L-1 and 0.1 mol L-1 concentration of CTAB were used. Moreover, the effect of interaction between bovine serum albumin (BSA) A9418-5G protein...

In the synthesis of nanoparticles, phenomenon agglomeration is an undesirable condition because particles formed can be larger. The use surfactants prevent occurrence this phenomenon. study, was studied in nanosilica from geothermal sludge. method applied sol-gel method. A 1 M sodium hydroxide (NaOH) solution used to prepare sol phase, while gel phase prepared at pH 5 using a 1.5 hydrochloric a...

Clouding phenomenon generally occurs with nonionic surfactants when the temperature of the system is raised to a certain value. This critical temperature is termed the cloud point (CP). The aqueous solutions of nonionic surfactants show complex phase behaviour including liquid-liquid phase separation at this temperature. The cloud point of aqueous surfactant solutions is influenced by the prese...

in this work, we report on the synthesis of superparamagnetic iron oxide nanoparticles at room temperature using microemulsion template phase consisting of cyclohexane, water, ctab as cationic surfactant and butanol as a cosurfactant. surface modification have been carried out by using poly(ethyleneglycol) (peg). the structure,morphology, and magnetic properties of the products were characteriz...

Abstract TiO 2 preparation has been carried out with the addition of cetyl trimethyl ammonium bromide (CTAB) surfactant. The sol-gel method is used in , where TiCl 4 as a precursor. resulting was characterized using XRD, FTIR, XRF and SEM. XRD results show crystal size 17.75 nm rutile phase. FTIR broad absorption band between 800 400 cm ?1 by Ti–O vibrations lattice. showed that content 80.80%....