The stabilizing effect of nanocellulose in the synthesis of silver nanoparticles

Name: Banthittaya Poka

Organization : Kasetsart University. Faculty of Science

Name: Sunisa Lohakarok

Organization : Kasetsart University. Faculty of Science

Name: Benjamart Kaewkong

Organization : Kasetsart University. Faculty of Science

Name: Peerada Yingyuad

Organization : Kasetsart University. Faculty of Science

Name: Junya Jettanasen

Organization : Kasetsart University. Faculty of Science

Email : fscijyk@ku.ac.th

keyword: Nanocellulose

LCSH: Nanoparticles -- Synthesis

LCSH: Extraction (Chemistry)

LCSH: Stabilizing agents

Abstract: In this work, nanocellulose was applied as a stabilizer in the synthesis of silver nanoparticles. The nanocellulose was extracted from dried corn cobs by using two common methods: acid hydrolysis and tempo-mediated oxidation, producing cellulose nanocrystals (CNC) and cellulose nanofibers (CNF), respectively. Sodium borohydride (NaBH4) was used as a reducing agent and the nanocellulose was added to the reaction mixture in the form of colloidal solutions. The properties of the resulting products were investigated by various techniques including UV-visible spectroscopy, x-ray diffraction spectroscopy (XRD), Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and zeta potential analysis. The results demonstrated that addition of nanocellulose could affect to the silver nanoparticles properties (stability, agglomeration, and size). Furthermore, the surface functional groups and the surface charges of nanocellulose (CNC and CNF) also had an important role during the synthesis. By adding the adequate quantity of the nanocellulose, the agglomeration of silver nanoparticles can be minimized, and their stability was enhanced. Herein, the optimum quantities of nanocellulose, for 30 mL of the reaction mixture containing 1 mM AgNO3 and 1 mM NaBH4 at 1:2 volume ratio, were 0.5 mL for 1 wt% CNC solution and 0.1 mL for 1 wt% CNF solution.

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2022

Modified: 2022-11-23

Issued: 2022-11-23

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BibliograpyCitation : In King Mongkut's Institute of Technology Ladkrabang. Pure and Applied Chemistry International Conference (PACCON 2022) (pp.610-614). Bangkok : King Mongkut's Institute of Technology Ladkrabang

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