Bifunctional regenerated cellulose membrane containing TiO2 nanoparticles for absorption and photocatalytic decomposition

Evyan Yang Chia Yan, Sarani Zakaria, Chin Hua Chia, Thomas Rosenau Boku

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A simple and green method was presented to embed TiO2 on regenerated cellulose membranes via cellulose dissolution-regeneration process. The physical, chemical and mechanical properties of the composite membranes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier- Transform Infrared (FTIR), ultraviolet (UV) - visible spectroscopy and tensile test. The results indicated that cotton linter has been converted from cellulose I to cellulose II after the regeneration process, while the TiO2 nanoparticles embedded inside the membrane maintaining its original crystal structures. The TiO2 composite membranes possessed high ability of water absorption with total pore volume ranged from 0.45±0.01 to 0.53±0.02 cm3/g. The elongation at break of the prepared membranes increased 29% averagely from dry state to wet state. The tensile strength of the membranes remained at a minimum value of 0.50±0.03 MPa in wet state thus enabled the films to withstand in wet for long period of time under weak UV irradiation. The regenerated cellulose membranes with TiO2 performed well in photocatalytic activity while exhibiting distinct absorption abilities. This study provides a potential application in energy-saving decomposition system in which the dye compound can be easily removed via two simultaneous pathways: Absorption and photocatalytic decomposition.

Original languageEnglish
Pages (from-to)637-644
Number of pages8
JournalSains Malaysiana
Volume46
Issue number4
DOIs
Publication statusPublished - 1 Apr 2017

Fingerprint

Cellulose
Nanoparticles
Decomposition
Membranes
Composite membranes
Ultraviolet visible spectroscopy
Water absorption
Chemical properties
Cotton
Elongation
Energy conservation
Fourier transforms
Dissolution
Tensile strength
Coloring Agents
Physical properties
Crystal structure
Irradiation
Infrared radiation
X ray diffraction

Keywords

  • Absorption
  • Mechanical properties
  • Photocatalysis
  • Regenerated celloluse

ASJC Scopus subject areas

  • General

Cite this

Bifunctional regenerated cellulose membrane containing TiO2 nanoparticles for absorption and photocatalytic decomposition. / Yan, Evyan Yang Chia; Zakaria, Sarani; Chia, Chin Hua; Boku, Thomas Rosenau.

In: Sains Malaysiana, Vol. 46, No. 4, 01.04.2017, p. 637-644.

Research output: Contribution to journalArticle

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