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Room Temperature Synthesis of Gold Nanokites in Polyvinyl Alcohol‐Sodium Dodecyl Sulfate Aggregations Aqueous Solution
Author(s) -
Ren Yueping,
Liu Jia,
Feng Feng,
Chen Tingzhong,
Fang Yun
Publication year - 2011
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.201180340
Subject(s) - polyvinyl alcohol , chemistry , sodium dodecyl sulfate , aqueous solution , transmission electron microscopy , reducing agent , nuclear chemistry , inorganic chemistry , alcohol , chemical engineering , organic chemistry , engineering
Controlled synthesis of asymmetrical gold nanokites was realized by reducing HAuCl 4 with polyvinyl alcohol (PVA) in PVA‐sodium dodecyl sulfate (SDS) aggregations aqueous solution at room temperature without any additional reducing agents. The crystal structures, optical property and growth process of the gold nanokites were investigated by X‐ray diffraction (XRD), Vis‐NIR spectrum and transmission electron microscope (TEM). HAuCl 4 concentration dramatically influenced the morphologies of the products. When HAuCl 4 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 super‐branched structures became the dominant products.