Extraction of nanocellulose and in-situ casting of ZnO/cellulose nanocomposite with enhanced photocatalytic and antibacterial activity

Kebadiretse Lefatshe, Cosmas M. Muiva, Lemme P. Kebaabetswe

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

Polymer hosted metallic nanostructures with diverse applications have become a prominent area of materials science, engineering and technology. In this study nanocellulose (NC) was synthesized from oil palm empty fruit bunches biomass via alkaline treatment and acid hydrolysis and characterized. The obtained NC was used as a host polymer for the synthesis of zinc oxide (ZnO) nanostructures through in-situ solution casting method. Alkaline treatment and acid hydrolysis increased the percentage crystalline index from 35.7% to 43.3% and 53.3% respectively. X-ray diffraction studies pointed to cellulose I, with a monoclinic structure. Zinc oxide/cellulose nanocomposite displayed more photocatalytic activity than pure ZnO nanostructures upon degradation of methylene blue, and also improved antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli.

Original languageEnglish
Pages (from-to)301-308
Number of pages8
JournalCarbohydrate Polymers
Volume164
DOIs
Publication statusPublished - May 15 2017

Fingerprint

Zinc Oxide
Zinc oxide
Cellulose
Nanostructures
Nanocomposites
Casting
Hydrolysis
Polymers
Acids
Palm oil
Methylene Blue
Materials science
Fruits
Escherichia coli
Biomass
Crystalline materials
X ray diffraction
Degradation

All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Organic Chemistry
  • Materials Chemistry

Cite this

@article{496aeef2330b40daa95896b3372f6ffa,
title = "Extraction of nanocellulose and in-situ casting of ZnO/cellulose nanocomposite with enhanced photocatalytic and antibacterial activity",
abstract = "Polymer hosted metallic nanostructures with diverse applications have become a prominent area of materials science, engineering and technology. In this study nanocellulose (NC) was synthesized from oil palm empty fruit bunches biomass via alkaline treatment and acid hydrolysis and characterized. The obtained NC was used as a host polymer for the synthesis of zinc oxide (ZnO) nanostructures through in-situ solution casting method. Alkaline treatment and acid hydrolysis increased the percentage crystalline index from 35.7{\%} to 43.3{\%} and 53.3{\%} respectively. X-ray diffraction studies pointed to cellulose I, with a monoclinic structure. Zinc oxide/cellulose nanocomposite displayed more photocatalytic activity than pure ZnO nanostructures upon degradation of methylene blue, and also improved antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli.",
author = "Kebadiretse Lefatshe and Muiva, {Cosmas M.} and Kebaabetswe, {Lemme P.}",
year = "2017",
month = "5",
day = "15",
doi = "10.1016/j.carbpol.2017.02.020",
language = "English",
volume = "164",
pages = "301--308",
journal = "Carbohydrate Polymers",
issn = "0144-8617",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Extraction of nanocellulose and in-situ casting of ZnO/cellulose nanocomposite with enhanced photocatalytic and antibacterial activity

AU - Lefatshe, Kebadiretse

AU - Muiva, Cosmas M.

AU - Kebaabetswe, Lemme P.

PY - 2017/5/15

Y1 - 2017/5/15

N2 - Polymer hosted metallic nanostructures with diverse applications have become a prominent area of materials science, engineering and technology. In this study nanocellulose (NC) was synthesized from oil palm empty fruit bunches biomass via alkaline treatment and acid hydrolysis and characterized. The obtained NC was used as a host polymer for the synthesis of zinc oxide (ZnO) nanostructures through in-situ solution casting method. Alkaline treatment and acid hydrolysis increased the percentage crystalline index from 35.7% to 43.3% and 53.3% respectively. X-ray diffraction studies pointed to cellulose I, with a monoclinic structure. Zinc oxide/cellulose nanocomposite displayed more photocatalytic activity than pure ZnO nanostructures upon degradation of methylene blue, and also improved antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli.

AB - Polymer hosted metallic nanostructures with diverse applications have become a prominent area of materials science, engineering and technology. In this study nanocellulose (NC) was synthesized from oil palm empty fruit bunches biomass via alkaline treatment and acid hydrolysis and characterized. The obtained NC was used as a host polymer for the synthesis of zinc oxide (ZnO) nanostructures through in-situ solution casting method. Alkaline treatment and acid hydrolysis increased the percentage crystalline index from 35.7% to 43.3% and 53.3% respectively. X-ray diffraction studies pointed to cellulose I, with a monoclinic structure. Zinc oxide/cellulose nanocomposite displayed more photocatalytic activity than pure ZnO nanostructures upon degradation of methylene blue, and also improved antibacterial activity against Gram-positive Staphylococcus aureus and Gram-negative Escherichia coli.

UR - http://www.scopus.com/inward/record.url?scp=85012012636&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85012012636&partnerID=8YFLogxK

U2 - 10.1016/j.carbpol.2017.02.020

DO - 10.1016/j.carbpol.2017.02.020

M3 - Article

AN - SCOPUS:85012012636

VL - 164

SP - 301

EP - 308

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

SN - 0144-8617

ER -