Room Temperature Synthesis of Gold Nanokites in Polyvinyl Alcohol-Sodium Dodecyl Sulfate Aggregations Aqueous Solution
Room Temperature Synthesis of Gold Nanokites in Polyvinyl Alcohol-Sodium Dodecyl Sulfate Aggregations Aqueous Solution作者机构:School of Chemical & Material Engineering Jiangnan University Wuxi Jiangsu 214122 China
出 版 物:《Chinese Journal of Chemistry》 (中国化学(英文版))
年 卷 期:2011年第29卷第9期
页 面:1955-1960页
核心收录:
学科分类:081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 070301[理学-无机化学]
主 题:gold nanostructures nanokites polyvinyl alcohol sodium dodecyl sulfate
摘 要:Controlled synthesis of asymmetrical gold nanokites was realized by reducing HAuCl4 with polyvinyl alcohol (PVA) in PVA-sodium dodecyl sulfate (SDS) aggregations aqueous solution at room temperature without any addi- tional reducing agents. The crystal structures, optical property and growth process of the gold nanokites were inves- tigated by X-ray diffraction (XRD), Vis-NIR spectrum and transmission electron microscope (TEM). HAuCl4 con- centration dramatically influenced the morphologies of the products. When HAuCl4 concentration was increased from 0.5 mmol·L^-1 to 2.2 mmol·L^-1, the products changed from network-like nanostructures to nanokites, nanoleaves and microplates. SDS was indispensable for the formation of gold nanokites and without SDS su- per-branched structures became the dominant products.