A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B

Soon Wei Chook, Chin Hua Chia, Chi Hoong Chan, Siew Xian Chin, Sarani Zakaria, Sajab Mohd Shaiful, Nay Ming Huang

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The presence of active functional groups on the CNFs favours the direct synthesis and growth of AgNPs on the nanofibrils without the use of an external reducing agent. The freeze-dried CNF-AgNPs aerogel nanocomposite exhibited a highly porous structure, as revealed by FESEM. An organic dye, rhodamine B (RhB), was chosen to investigate the characteristics of the produced nanocomposite. Detection of the dye via Raman spectroscopy and analysis of catalytic capabilities by degradation of the dye were used to define the nanocomposite's properties. The nanocomposite showed significant enhancement in detection of signal for RhB in aqueous solution, as compared to the neat CNF, which is attributed to the surface-enhanced Raman scattering effect (SERS) of the immobilized AgNPs. Moreover, the CNF-AgNPs nanocomposite also showed sensitivity for detecting RhB at different concentrations, ranging from 5 × 10-3 M to 5 × 10-7 M. In addition, the nanocomposite exhibited a notable catalytic effect on the degradation of RhB in the presence of sodium borohydride.

Original languageEnglish
Pages (from-to)88915-88920
Number of pages6
JournalRSC Advances
Volume5
Issue number108
DOIs
Publication statusPublished - 2015

Fingerprint

rhodamine B
Aerogels
Silver
Cellulose
Raman scattering
Nanocomposites
Nanoparticles
Degradation
Coloring Agents
Dyes
Hydrothermal synthesis
Reducing Agents
Reducing agents
Functional groups
Raman spectroscopy
Sodium

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B. / Chook, Soon Wei; Chia, Chin Hua; Chan, Chi Hoong; Chin, Siew Xian; Zakaria, Sarani; Mohd Shaiful, Sajab; Huang, Nay Ming.

In: RSC Advances, Vol. 5, No. 108, 2015, p. 88915-88920.

Research output: Contribution to journalArticle

@article{f27876ed8c654d859d52b9e6262339da,
title = "A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B",
abstract = "Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The presence of active functional groups on the CNFs favours the direct synthesis and growth of AgNPs on the nanofibrils without the use of an external reducing agent. The freeze-dried CNF-AgNPs aerogel nanocomposite exhibited a highly porous structure, as revealed by FESEM. An organic dye, rhodamine B (RhB), was chosen to investigate the characteristics of the produced nanocomposite. Detection of the dye via Raman spectroscopy and analysis of catalytic capabilities by degradation of the dye were used to define the nanocomposite's properties. The nanocomposite showed significant enhancement in detection of signal for RhB in aqueous solution, as compared to the neat CNF, which is attributed to the surface-enhanced Raman scattering effect (SERS) of the immobilized AgNPs. Moreover, the CNF-AgNPs nanocomposite also showed sensitivity for detecting RhB at different concentrations, ranging from 5 × 10-3 M to 5 × 10-7 M. In addition, the nanocomposite exhibited a notable catalytic effect on the degradation of RhB in the presence of sodium borohydride.",
author = "Chook, {Soon Wei} and Chia, {Chin Hua} and Chan, {Chi Hoong} and Chin, {Siew Xian} and Sarani Zakaria and {Mohd Shaiful}, Sajab and Huang, {Nay Ming}",
year = "2015",
doi = "10.1039/c5ra18806g",
language = "English",
volume = "5",
pages = "88915--88920",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "108",

}

TY - JOUR

T1 - A porous aerogel nanocomposite of silver nanoparticles-functionalized cellulose nanofibrils for SERS detection and catalytic degradation of rhodamine B

AU - Chook, Soon Wei

AU - Chia, Chin Hua

AU - Chan, Chi Hoong

AU - Chin, Siew Xian

AU - Zakaria, Sarani

AU - Mohd Shaiful, Sajab

AU - Huang, Nay Ming

PY - 2015

Y1 - 2015

N2 - Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The presence of active functional groups on the CNFs favours the direct synthesis and growth of AgNPs on the nanofibrils without the use of an external reducing agent. The freeze-dried CNF-AgNPs aerogel nanocomposite exhibited a highly porous structure, as revealed by FESEM. An organic dye, rhodamine B (RhB), was chosen to investigate the characteristics of the produced nanocomposite. Detection of the dye via Raman spectroscopy and analysis of catalytic capabilities by degradation of the dye were used to define the nanocomposite's properties. The nanocomposite showed significant enhancement in detection of signal for RhB in aqueous solution, as compared to the neat CNF, which is attributed to the surface-enhanced Raman scattering effect (SERS) of the immobilized AgNPs. Moreover, the CNF-AgNPs nanocomposite also showed sensitivity for detecting RhB at different concentrations, ranging from 5 × 10-3 M to 5 × 10-7 M. In addition, the nanocomposite exhibited a notable catalytic effect on the degradation of RhB in the presence of sodium borohydride.

AB - Herein, cellulose nanofibrils (CNFs) were functionalised with silver nanoparticles (AgNPs) via a green in situ hydrothermal synthesis approach. The presence of active functional groups on the CNFs favours the direct synthesis and growth of AgNPs on the nanofibrils without the use of an external reducing agent. The freeze-dried CNF-AgNPs aerogel nanocomposite exhibited a highly porous structure, as revealed by FESEM. An organic dye, rhodamine B (RhB), was chosen to investigate the characteristics of the produced nanocomposite. Detection of the dye via Raman spectroscopy and analysis of catalytic capabilities by degradation of the dye were used to define the nanocomposite's properties. The nanocomposite showed significant enhancement in detection of signal for RhB in aqueous solution, as compared to the neat CNF, which is attributed to the surface-enhanced Raman scattering effect (SERS) of the immobilized AgNPs. Moreover, the CNF-AgNPs nanocomposite also showed sensitivity for detecting RhB at different concentrations, ranging from 5 × 10-3 M to 5 × 10-7 M. In addition, the nanocomposite exhibited a notable catalytic effect on the degradation of RhB in the presence of sodium borohydride.

UR - http://www.scopus.com/inward/record.url?scp=84945257846&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84945257846&partnerID=8YFLogxK

U2 - 10.1039/c5ra18806g

DO - 10.1039/c5ra18806g

M3 - Article

VL - 5

SP - 88915

EP - 88920

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 108

ER -