Silver and gold nanoparticles as chemical probes of the presence of heavy metal ions

被引：22

作者：

Modrzejewska-Sikorska, Anna ^{[1
]}

Konowal, Emilia ^{[1
]}

机构：

[1] Poznan Univ Tech, Fac Chem Technol, Inst Chem & Tech Electrochem, Berdychowo 4, PL-60965 Poznan, Poland

来源：

JOURNAL OF MOLECULAR LIQUIDS | 2020年 / 302卷

关键词：

Lignosulfonate; Silver nanoparticles; Gold nanoparticles; Heavy metals detection; ORGANICALLY-MODIFIED SILICA; LIGNOSULFONATE; AU; AGGREGATION; BEHAVIOR; LIGNIN; ROUTE; PH;

D O I：

10.1016/j.molliq.2020.112559

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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. (C) 2020 Elsevier B.V. All rights reserved.

引用

页数：7

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