Abstract
Technical sodium lignosulfonate, a natural polymer, was used as reducing and stabilizing agent for a simple and inexpensive synthesis of silver and gold nanoparticles (AgNPs and AuNPs) in aqueous solution at room temperature. Further, AgNPs and AuNPs were used for spectrophotometric detection of selected heavy metals ions (Cd2+, Cu2+, Co2+, Pb2+ and Ni2+) in model aqueous solutions. The obtained AgNPs and AuNPs were characterized by UV–vis spectrophotometry, size distribution (DLS) and transmission electron microscopy (TEM). The results clearly indicate that received silver and gold colloids can be used as chemical probes of the presence of heavy metal ions if the interference of other species is excluded.
Published Version
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