Abstract:

This dataset contains optical microscopy images of emulsions formed at various pH values as well as dynamic light scattering data quantifying the hydrodynamic diameters of the various nanoparticles synthesized/used. Thermogravimetric data for the emulsifier/ligand i.e. sodium stearoyl lactylate is also provided. This study successfully demonstrated the ability to synthesize iron oxide nanoparticles coated with a surfactant (i.e. sodium stearoyl lactylate) in order to generate stable Pickering emulsions. These emulsions were pH-responsive and resistant to significant destabilization in a saline environment, thereby lending themselves to applications in advanced oil spill recovery and remediation. Dataset supporting the publication: P.S. Vengsarkar, C.B. Roberts, Solid-stabilized emulsion formation using stearoyl lactylate coated iron oxide nanoparticles, J. Nanoparticle Res. 16 (2014) 2627. doi:10.1007/s11051-014-2627-4.

Suggested Citation:

Roberts, Christopher, and Vengsarkar, Pranav. 2015. Dataset for: Solid-stabilized emulsion formation using stearoyl lactylate coated iron oxide nanoparticles. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N79021R7

Publications:

Vengsarkar, P. S., & Roberts, C. B. (2014). Solid-stabilized emulsion formation using stearoyl lactylate coated iron oxide nanoparticles. J Nanopart Res, 16(10). doi:10.1007/s11051-014-2627-4

Purpose:

In this study, by carefully varying the amount of SSL added to the reaction system, it was aimed to controllably synthesize monolayer/bilayer coated iron oxide nanoparticles. After analyzing these particles using various particle characterization methods to determine the surface functionalization of the iron oxide core, these surface modified particles were then investigated for their capacity to stabilize oil-in-water emulsions. The generated Pickering emulsions were also tested for their pH and salinity responsiveness so as to assess the stability and practical applicability of the emulsions.

Data Parameters and Units:

File: DLS data- nanoparticle systenthsis o 25 mg (hex) = iron oxide nanoparticles synthesized in solution containing 25 milligrams of sodium stearoyl lactylate (SSL) and soluble in hexane o 50 mg (hex) = iron oxide nanoparticles synthesized in solution containing 50 milligrams of sodium stearoyl lactylate (SSL) and soluble in hexane o 400 mg (wat) = iron oxide nanoparticles synthesized in solution containing 400 milligrams of sodium stearoyl lactylate (SSL) and soluble in water o 600 mg (wat) = iron oxide nanoparticles synthesized in solution containing 600 milligrams of sodium stearoyl lactylate (SSL) and soluble in water o 800 mg (wat) = iron oxide nanoparticles synthesized in solution containing 800 milligrams of sodium stearoyl lactylate (SSL) and soluble in water o Diam. (nm) = nanoparticle hydrodynamic diameter (nanometers) o Int wt% = intensity weight (percent) File: TGA data for SSL o Time - elapsed time (minutes) o Temperature (degrees Celsius) o Weight (percent) o Deriv. Weight = Derivative weight (percent per degree Celsius)

Individual Files: