title: Effects of sodium laurylsulfate on crystal structure of calcite formed from mixed solutions.
abstract: Sodium laurylsulfate (SLS), an anionic surfactant, was used for tailoring calcite via a solution route. SLS was dissolved in calcium and carbonate source solutions at various concentrations and critical micelle concentrations (CMCs). The crystallized particles were characterized using X-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM), laser-scattering particle size measurements, and thermogravimetric analysis (TGA). Energy dispersive spectroscopy (EDS) analysis was carried out to measure sulfur profiles on the surface of the particles. SLS tended to produce small calcite particles in the carbonate source solution, whereas this effect was not obvious in the calcium source solution. It is believed that the electrostatic repulsion force in the carbonate source solution contributes to the different particle refining effects of SLS seen in the two solutions.
authors.affiliation: Geologic Environmental Division, Korea Institute of Geoscience and Mineral Resources (KIGAM), Yuseong-gu, Daejeon, Republic of Korea.
authors.forename: Jun-Hwan
authors.initials: JH
authors.lastname: Bang
authors.forename: Young Nam
authors.initials: YN
authors.lastname: Jang
authors.forename: Kyung Sun
authors.initials: KS
authors.lastname: Song
authors.forename: Chi Wan
authors.initials: CW
authors.lastname: Jeon
authors.forename: Wonbaek
authors.initials: W
authors.lastname: Kim
authors.forename: Myung Gyu
authors.initials: MG
authors.lastname: Lee
authors.forename: So-Jin
authors.initials: SJ
authors.lastname: Park
mesh_terms: D002118:Calcium / Q000737:chemistry; D002119:Calcium Carbonate / Q000737:chemistry*; D002254:Carbonates / Q000737:chemistry; D003460:Crystallization; D006863:Hydrogen-Ion Concentration; D008823:Micelles; D008855:Microscopy, Electron, Scanning; D010316:Particle Size; D012967:Sodium Dodecyl Sulfate / Q000737:chemistry*; D012996:Solutions / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D013455:Sulfur / Q000737:chemistry; D013501:Surface-Active Agents; D013818:Thermogravimetry; D014961:X-Ray Diffraction
chemical_list: D002254:Carbonates; D008823:Micelles; D012996:Solutions; D013501:Surface-Active Agents; D012967:Sodium Dodecyl Sulfate; D013455:Sulfur; D002119:Calcium Carbonate; D002118:Calcium