Carboxylated-nanoncellulose as a template for the synthesis of silver nanoprism

Soon Wei Chook, Shun Xiang Yau, Chin Hua Chia, Siew Xian Chin, Sarani Zakaria

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The features of templates, such as physical dimensions or functional groups, often affect the in situ growth process of nanoparticles. In this study, a rapid thermal synthesis method was adopted for the synthesis of Ag nanoprisms (AgNPRs) on cellulose nanofibrils (CNF), which were obtained via defibrillations of holocellulose. In comparison, holocellulose and pure cellulose also were used for the attempted synthesis of AgNPRs. The produced nanocomposites were examined for their optical and physical properties using ultraviolet-visible spectroscopy, transmission electron microscopy and X-ray diffraction. The results demonstrate that the reduced of the fibres into nanosize and carboxylate functional groups present on the cellulosic template affects the formation of AgNPRs, with which CNF is able to form AgNPRs. The surface-enhanced Raman scattering (SERS) activity of the CNF-AgNPRs composite was studied and exhibited a higher enhancement, compared to the spherical AgNPs-anchored CNF. The CNF prepared from carboxylated holocellulose not only served as nanoparticles support for the SERS application, it also facilitated the formation of AgNPRs that resulted in a better enhancement SERS signal.

Original languageEnglish
Pages (from-to)32-38
Number of pages7
JournalApplied Surface Science
Volume422
DOIs
Publication statusPublished - 15 Nov 2017

Fingerprint

Silver
Cellulose
Raman scattering
Functional groups
Nanoparticles
Ultraviolet visible spectroscopy
Nanocomposites
Optical properties
Physical properties
Transmission electron microscopy
X ray diffraction
Fibers
Composite materials

Keywords

  • Cellulose nanofibrils
  • In situ template synthesis
  • SERS
  • Silver nanoparticles

ASJC Scopus subject areas

  • Surfaces, Coatings and Films

Cite this

Carboxylated-nanoncellulose as a template for the synthesis of silver nanoprism. / Chook, Soon Wei; Yau, Shun Xiang; Chia, Chin Hua; Chin, Siew Xian; Zakaria, Sarani.

In: Applied Surface Science, Vol. 422, 15.11.2017, p. 32-38.

Research output: Contribution to journalArticle

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