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Sunlight-driven synthesis of anisotropic silver nanoparticles
journal contribution
posted on 2014-08-21, 00:00 authored by Bin TangBin Tang, Lu Sun, Jingliang LiJingliang Li, Mingwen Zhang, Xungai WangPhotoinduced shape conversion of silver nanoparticles was realized using sunlight. The silver seeds were transformed to silver nanoprisms under sunlight when the concentration of citrate was low (≤5.0×10-4M). Nevertheless, sunlight converted the obtained silver nanoprisms to silver nanodecahedrons when the concentration of citrate in reaction system was increased. It was found that the ultraviolet light from sunlight played a vital role in the shape conversion from nanoprism to nanodecahedron. Lighting power density did not influence the shape conversion except for reaction rate. Besides, the silver nanodecahedrons were synthesized in the mixed solution of AgNO3 and citrate in absence of silver seeds through irradiation by simulated sunlight. The mechanism on the sunlight induced synthesis of silver nanoparticles was discussed. Anisotropic silver nanoparticles including nanoprisms and nanodecahedrons were obtained through controlling the citrate concentration and irradiation time by sunlight from green light source.
History
Journal
Chemical engineering journalVolume
260Pagination
99 - 106Publisher
Elsevier BVLocation
Amsterdam, NetherlandsPublisher DOI
ISSN
1385-8947eISSN
1873-3212Language
engPublication classification
C Journal article; C1 Refereed article in a scholarly journalCopyright notice
2014, Elsevier BVUsage metrics
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