Role of the anions in the hydrothermally formed silver nanowires and their antibacterial property

• Published in: Journal of colloid and interface science Vol. 416; no. 416; pp. 86 - 94
• Main Authors: Tang, Chengli, Sun, Wei, Lu, Jiaming, Yan, Wei
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 15.02.2014; Elsevier
• Subjects: Anions; Anti-Bacterial Agents - chemical synthesis; Anti-Bacterial Agents - pharmacology; Antibacterial properties; Antibacterial property; Bromides - chemistry; Carbonates - chemistry; Chemistry; Colloidal state and disperse state; Colloids; Escherichia coli - drug effects; Escherichia coli - growth & development; Exact sciences and technology; General and physical chemistry; Green Chemistry Technology; Hot Temperature; Hydrothermal; Miscellaneous; Nanowires; Nanowires - chemistry; Nanowires - toxicity; Oxalates - chemistry; Oxidants; Oxidizing agents; Particle Size; Precursors; Silver; Silver - chemistry; Silver nanowires; Staphylococcus aureus - drug effects; Staphylococcus aureus - growth & development; Sulfates - chemistry; Sulfides - chemistry; Surface Properties; Anions; Silver nanowires; Antibacterial property; Hydrothermal; Silver; Transition metal; Green chemistry; Nanowires; Antibacterial agent; Hydrothermal condition
• ISSN: 0021-9797; 1095-7103
• DOI: 10.1016/j.jcis.2013.10.036

[Display omitted] •The additive anions were found to be of significant importance in determining the final products.•A new pathway was proposed for the formation of Ag0 that AgxAy act as the oxidant.•The formation mechanism was analyzed from the viewpoint of standard reduction potential.•The obtained AgNWs showed excellent and long-lasting bactericidal efficiency for both Staphylococcus aureus and Escherichia coli. Uniform silver nanowires were synthesized via a green and simple hydrothermal method through fine tailoring the anions in the precursors. The results indicate that the anions added to the reaction precursors played a key role in determining the morphology and composition of the final products. A new possible mechanism is proposed that in the hydrothermal process AgxAy act as another oxidant except for Ag+ ions. The obtained silver nanowires showed excellent and long-lasting antibacterial property.