2019
DOI: 10.1186/s11671-019-2898-x
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The Influence of CTAB-Capped Seeds and Their Aging Time on the Morphologies of Silver Nanoparticles

Abstract: Contrast to the polydisperse nanorods formed by common seed-mediated growth method without the presence of cetyltrimethylammonium bromide (CTAB) in seed solution, we successfully obtained silver nanoparticles with different morphologies in the same reaction system by addition of CTAB in the seed solution. In this work, an appropriate amount of CTAB was added into the solution to prepare silver seed crystals. The results show that the aging time of silver seeds have a great influence on the sizes and morphologi… Show more

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Cited by 17 publications
(7 citation statements)
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“…In many papers producing AgNPs with red-shifted absorbance, surfactants and polymers such as CTAB, 29 PVP, 30 or PEG 31 are typically employed; however, in our method, triangles are generated using trisodium citrate as the only surface stabilization agent.…”
Section: Resultsmentioning
confidence: 99%
“…In many papers producing AgNPs with red-shifted absorbance, surfactants and polymers such as CTAB, 29 PVP, 30 or PEG 31 are typically employed; however, in our method, triangles are generated using trisodium citrate as the only surface stabilization agent.…”
Section: Resultsmentioning
confidence: 99%
“…Given the small sizes of Ag nanoparticles (2.2 nm and 1.9 nm for PVP and SDS, respectively), a significant amount of Ag 2 O can be formed on the surface. However, CTAB can only react with Ag via the brome ion to form AgBr [40]. As AgBr will be quickly reduced to Ag [41], the metallic Ag nanoparticles will react with other oxidising agents to form a thin Ag 2 O layer.…”
Section: Resultsmentioning
confidence: 99%
“…Narrower bandwidths have been found to be resulted from a more ordered structure of the alkyl chains for bound CTAB molecules, which implies that CTAB molecules are arranged in some order on NPs surface. [28] Scanning electron microscope images shown the AgNPs(RG) on the presence of CTAB in microscale diameter [29] The CTAB was stabilized the AgNPs via formation of micelles to protect it from agglomeration. The silver nanoparticles grown over the large particle size of CTAB (see Figure 4(b))…”
Section: 2the Stabilization Of the Prepared Agnps (Rg)with Ctabmentioning
confidence: 99%