Cellulose nanofibrils

A rapid adsorbent for the removal of methylene blue

Chi Hoong Chan, Chin Hua Chia, Sarani Zakaria, Sajab Mohd Shaiful, Siew Xian Chin

Research output: Contribution to journalArticle

38 Citations (Scopus)

Abstract

Cellulose nanofibrils (CNF) were prepared from kenaf core (KC) using acidified-chlorite bleaching method and followed by disintegration using a high speed blender. The effects of disintegration time and acid treatment on the defibrillation of holocellulose were studied. Hemicellulose was found to facilitate defibrillation, as CNF without any acid treatment was fully defibrillated after 30 min. The adsorption kinetics of CNF toward cationic dye cannot be accurately determined due to its quick adsorption performance, in which the equilibrium is achieved immediately after 1 min of contact time. The effects of acid treatment on holocellulose, pH, adsorbent dosage, temperature and dye concentration were studied and optimized. Adsorption data were fitted to both Langmuir and Freundlich models where the Langmuir model was found to be the better model to describe the adsorption process. The maximum adsorption capacity was found to be 122.2 mg g-1 at pH 9, 20 °C for the non-acid treated CNF. The CNF can be regenerated by desorption at low pH where as much as 70% of the dye adsorbed can be desorbed after 6 cycles of adsorption-desorption.

Original languageEnglish
Pages (from-to)18204-18212
Number of pages9
JournalRSC Advances
Volume5
Issue number24
DOIs
Publication statusPublished - 2015

Fingerprint

Methylene Blue
Cellulose
Adsorbents
Adsorption
Coloring Agents
Dyes
Disintegration
Acids
Desorption
Bleaching
Kinetics

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Cellulose nanofibrils : A rapid adsorbent for the removal of methylene blue. / Chan, Chi Hoong; Chia, Chin Hua; Zakaria, Sarani; Mohd Shaiful, Sajab; Chin, Siew Xian.

In: RSC Advances, Vol. 5, No. 24, 2015, p. 18204-18212.

Research output: Contribution to journalArticle

@article{6b021e7ef9a64150a8a8cf6481eab595,
title = "Cellulose nanofibrils: A rapid adsorbent for the removal of methylene blue",
abstract = "Cellulose nanofibrils (CNF) were prepared from kenaf core (KC) using acidified-chlorite bleaching method and followed by disintegration using a high speed blender. The effects of disintegration time and acid treatment on the defibrillation of holocellulose were studied. Hemicellulose was found to facilitate defibrillation, as CNF without any acid treatment was fully defibrillated after 30 min. The adsorption kinetics of CNF toward cationic dye cannot be accurately determined due to its quick adsorption performance, in which the equilibrium is achieved immediately after 1 min of contact time. The effects of acid treatment on holocellulose, pH, adsorbent dosage, temperature and dye concentration were studied and optimized. Adsorption data were fitted to both Langmuir and Freundlich models where the Langmuir model was found to be the better model to describe the adsorption process. The maximum adsorption capacity was found to be 122.2 mg g-1 at pH 9, 20 °C for the non-acid treated CNF. The CNF can be regenerated by desorption at low pH where as much as 70{\%} of the dye adsorbed can be desorbed after 6 cycles of adsorption-desorption.",
author = "Chan, {Chi Hoong} and Chia, {Chin Hua} and Sarani Zakaria and {Mohd Shaiful}, Sajab and Chin, {Siew Xian}",
year = "2015",
doi = "10.1039/c4ra15754k",
language = "English",
volume = "5",
pages = "18204--18212",
journal = "RSC Advances",
issn = "2046-2069",
publisher = "Royal Society of Chemistry",
number = "24",

}

TY - JOUR

T1 - Cellulose nanofibrils

T2 - A rapid adsorbent for the removal of methylene blue

AU - Chan, Chi Hoong

AU - Chia, Chin Hua

AU - Zakaria, Sarani

AU - Mohd Shaiful, Sajab

AU - Chin, Siew Xian

PY - 2015

Y1 - 2015

N2 - Cellulose nanofibrils (CNF) were prepared from kenaf core (KC) using acidified-chlorite bleaching method and followed by disintegration using a high speed blender. The effects of disintegration time and acid treatment on the defibrillation of holocellulose were studied. Hemicellulose was found to facilitate defibrillation, as CNF without any acid treatment was fully defibrillated after 30 min. The adsorption kinetics of CNF toward cationic dye cannot be accurately determined due to its quick adsorption performance, in which the equilibrium is achieved immediately after 1 min of contact time. The effects of acid treatment on holocellulose, pH, adsorbent dosage, temperature and dye concentration were studied and optimized. Adsorption data were fitted to both Langmuir and Freundlich models where the Langmuir model was found to be the better model to describe the adsorption process. The maximum adsorption capacity was found to be 122.2 mg g-1 at pH 9, 20 °C for the non-acid treated CNF. The CNF can be regenerated by desorption at low pH where as much as 70% of the dye adsorbed can be desorbed after 6 cycles of adsorption-desorption.

AB - Cellulose nanofibrils (CNF) were prepared from kenaf core (KC) using acidified-chlorite bleaching method and followed by disintegration using a high speed blender. The effects of disintegration time and acid treatment on the defibrillation of holocellulose were studied. Hemicellulose was found to facilitate defibrillation, as CNF without any acid treatment was fully defibrillated after 30 min. The adsorption kinetics of CNF toward cationic dye cannot be accurately determined due to its quick adsorption performance, in which the equilibrium is achieved immediately after 1 min of contact time. The effects of acid treatment on holocellulose, pH, adsorbent dosage, temperature and dye concentration were studied and optimized. Adsorption data were fitted to both Langmuir and Freundlich models where the Langmuir model was found to be the better model to describe the adsorption process. The maximum adsorption capacity was found to be 122.2 mg g-1 at pH 9, 20 °C for the non-acid treated CNF. The CNF can be regenerated by desorption at low pH where as much as 70% of the dye adsorbed can be desorbed after 6 cycles of adsorption-desorption.

UR - http://www.scopus.com/inward/record.url?scp=84923249649&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84923249649&partnerID=8YFLogxK

U2 - 10.1039/c4ra15754k

DO - 10.1039/c4ra15754k

M3 - Article

VL - 5

SP - 18204

EP - 18212

JO - RSC Advances

JF - RSC Advances

SN - 2046-2069

IS - 24

ER -