Regulation of the Charge and Hydrodynamic Diameter of Silica Nanoparticles in AOT Microemulsions

Electrophoretic mobility and stability of SiO2 nanoparticles in the solutions of AOT in n‐hexadecane‐chloroform mixtures

“…At the current stage, only hypothetical consideration may be presented. According to the published [6, 9, 10] and our measurement [18], the initial charge of silica nanoparticles in nonpolar solvents is negative. One of the major reasons of the formation of negative charge, in the opinion of Ref.…”

“…Previously, we established the fact of a substantial increase in the electrophoretic mobility of the nanoparticles of Ag, Au [17], and SiO 2 [18] in the solutions of AOT in saturated hydrocarbons in the presence of chloroform. In Ref.…”

A Facile Approach to the Hydrothermal Synthesis of Silica Nanoparticle/Carbon Nanostructure Luminescent Composites

“…Silica nanoparticles can be synthesized by the traditional Stober method [ 42 , 45 ], inverse microemulsion [ 45 , 48 , 49 , 50 , 51 , 52 , 53 ], or sol–gel [ 54 , 55 ]. In this work, we used the reverse microemulsion method to synthesize silica nanoparticles with the ability to control their size and shape.…”

“…The reverse microemulsion can be obtained by various combinations of nonpolar phases, water, and surfactants. The most popular surfactants according to the authors [ 49 ] are ionic bis (2-ethylhexyl) sulfosuccinate sodium salt [ 50 ] and cetriltrimethylammonium bromide [ 51 ] and nonionic: Triton X-100 [ 48 ], Igepal CO-520 [ 52 ] and Brij L30/Brij L4 [ 49 , 53 ] with cyclohexane, n-hexane, and n-heptane as the corresponding nonpolar phase. In this work, to form a reverse microemulsion, we used the nonpolar solvent hexane as an organic phase and the nonionic surfactant Brij L4.…”