Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan, Poland.
Colloids Surf B Biointerfaces. 2013 May 1;105:335-41. doi: 10.1016/j.colsurfb.2013.01.010. Epub 2013 Jan 10.
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.
木质素磺酸钠（SLS）在水溶液中于室温下被用作一步法合成银纳米粒子（SLS-AgNPs）的还原剂。在该反应中，SLS 还充当稳定剂，因此，在反应过程中形成了稳定的银纳米粒子胶体，其平均粒径为 41nm。通过在云母上浇铸后用 UV-vis 分光光度法、粒径分布和 AFM 成像对所得到的 SLS-AgNPs 进行了表征。由于木质素磺酸盐具有金属离子络合能力，因此 SLS-AgNPs 似乎能够对金属离子（特别是镍）进行比色检测。此外，SLS-AgNPs 可以通过电泳沉积组装到导电基底（ITO 玻璃）上形成薄膜。XPS 光谱用于对这些薄膜进行表征，并揭示了银原子与 SLS 的某些碳原子之间的强烈相互作用。
