title: One-step synthesis of lignosulfonate-stabilized silver nanoparticles.
abstract: Softwood lignosulfonate (SLS) was used as a reducing agent for one-step synthesis of silver nanoparticles (SLS-AgNPs) in an aqueous solution at room temperature. In this reaction SLS acts also as a stabilizing agent and as a result, stable colloids of silver nanoparticles are formed during the reaction with the average particle size of 41 nm. The obtained SLS-AgNPs were characterized by UV-vis spectrophotometry, size distribution and AFM imaging after casting on mica. Due to metal ion complexing capability of lignosulfonates, the SLS-AgNPs appeared to be capable of colorimetric detection of metal ions (especially nickel). Additionally, the SLS-AgNPs could be assembled into thin films on conducting substrates (ITO glass) using electrophoretic deposition. XPS spectroscopy was used to characterize such films and revealed a strong interaction of silver atoms with some carbon atoms of the SLS.
authors: Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, Poland. grzegorz.milczarek@put.poznan.pl
authors: Grzegorz
authors: G
authors: Milczarek
authors: Tomasz
authors: T
authors: Rebis
authors: Justyna
authors: J
authors: Fabianska
mesh_terms: D003102:Colloids; D008031:Lignin / Q000031:analogs & derivatives* / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D018625:Microscopy, Atomic Force; D010316:Particle Size; D019163:Reducing Agents / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D003102:Colloids; D019163:Reducing Agents; D012834:Silver; C001545:lignosulfuric acid; D008031:Lignin