Next Article in Journal
Effect of the Impact of Chemical and Environmental Factors on the Durability of the High Density Polyethylene (HDPE) Geogrid in a Sanitary Landfill
Previous Article in Journal
Rheological Properties with Temperature Response Characteristics and a Mechanism of Solid-Free Polymer Drilling Fluid at Low Temperatures
Article Menu
Issue 1 (January) cover image

Export Article

Open AccessArticle
Appl. Sci. 2017, 7(1), 24; doi:10.3390/app7010024

The Preparation and Characterization of Immobilized TiO2/PEG by Using DSAT as a Support Binder

1
Faculty of Applied Sciences, Universiti Teknologi MARA, Perlis, 02600 Arau, Perlis, Malaysia
2
Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Selangor, Malaysia
*
Author to whom correspondence should be addressed.
Academic Editor: Giorgio Biasiol
Received: 30 September 2016 / Revised: 6 December 2016 / Accepted: 13 December 2016 / Published: 23 December 2016
(This article belongs to the Section Chemistry)
View Full-Text   |   Download PDF [4233 KB, uploaded 23 December 2016]   |  

Abstract

Immobilized TiO2 was prepared by adding a small composition of polyethylene glycol (PEG) as a binder, and this paper reported for the very first time the formation of C=O from oxidized PEG, which acted as an electron injector in enhancing photoactivity. Water-based TiO2 with PEG formulation was deposited by using a brush technique onto double-sided adhesive tape (DSAT) as a support binder to increase the adhesiveness of immobilized TiO2. The photocatalytic activity of immobilized TiO2-PEG was measured by photodegradation of 12 mg·L−1 methylene blue (MB) dye. The optimum condition of immobilized TiO2-PEG was observed at TiO2/PEG-2 (TP2) with 10:0.1 for the TiO2/PEG ratio, which resulted in a 1.8-times higher photodegradation rate as compared to the suspension mode of pristine TiO2. The high photodegradation rate was due to the formation of the active C=O bond from oxidized PEG binder in immobilized TiO2-PEG as observed by Fourier transform infrared and X-ray photoelectron spectroscopy analyses. The presence of C=O has escalated the photoactivity by forming an electron injector to a conduction band of TiO2 as proven by higher photoluminescence intensity obtained for TP2 as compared to pristine TiO2. The TP2 sample has also increased its adhesiveness when DSAT is applied as a support binder where it can be recycled up to eight times and comparable to recent photocatalysis cycle developments. View Full-Text
Keywords: immobilization; titanium dioxide; oxidized PEG; support binder; methylene blue immobilization; titanium dioxide; oxidized PEG; support binder; methylene blue
Figures

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Nawawi, W.I.; Zaharudin, R.; Ishak, M.A.M.; Ismail, K.; Zuliahani, A. The Preparation and Characterization of Immobilized TiO2/PEG by Using DSAT as a Support Binder. Appl. Sci. 2017, 7, 24.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Appl. Sci. EISSN 2076-3417 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top