Next Article in Journal
Uncertainty Impact on Water Management Analysis of Open Water Reservoir
Next Article in Special Issue
Negative Reagent Ions for Real Time Detection Using SIFT-MS
Previous Article in Journal
Response of Red-Backed Salamanders (Plethodon Cinereus) to Changes in Hemlock Forest Soil Driven by Invasive Hemlock Woolly Adelgid (Adelges Tsugae)
Previous Article in Special Issue
Investigation of Air Quality beside a Municipal Landfill: The Fate of Malodour Compounds as a Model VOC
Article Menu
Issue 1 (March) cover image

Export Article

Open AccessArticle
Environments 2017, 4(1), 9;

Photocatalytic Degradation of Toluene, Butyl Acetate and Limonene under UV and Visible Light with Titanium Dioxide-Graphene Oxide as Photocatalyst

Bundesanstalt für Materialforschung und-prüfung (BAM), Berlin 12205, Germany
Author to whom correspondence should be addressed.
Academic Editors: Ki-Hyun Kim and Abderrahim Lakhouit
Received: 21 November 2016 / Revised: 21 December 2016 / Accepted: 13 January 2017 / Published: 25 January 2017
(This article belongs to the Special Issue Volatile Organic Compounds in Environment)
Full-Text   |   PDF [634 KB, uploaded 25 January 2017]   |  


Photocatalysis is a promising technique to reduce volatile organic compounds indoors. Titanium dioxide (TiO2) is a frequently-used UV active photocatalyst. Because of the lack of UV light indoors, TiO2 has to be modified to get its working range shifted into the visible light spectrum. In this study, the photocatalytic degradation of toluene, butyl acetate and limonene was investigated under UV LED light and blue LED light in emission test chambers with catalysts either made of pure TiO2 or TiO2 modified with graphene oxide (GO). TiO2 coated with different GO amounts (0.75%–14%) were investigated to find an optimum ratio for the photocatalytic degradation of VOC in real indoor air concentrations. Most experiments were performed at a relative humidity of 0% in 20 L emission test chambers. Experiments at 40% relative humidity were done in a 1 m³ emission test chamber to determine potential byproducts. Degradation under UV LED light could be achieved for all three compounds with almost all tested catalyst samples up to more than 95%. Limonene had the highest degradation of the three selected volatile organic compounds under blue LED light with all investigated catalyst samples. View Full-Text
Keywords: photocatalysis; emission test chamber; volatile organic compounds photocatalysis; emission test chamber; volatile organic compounds

Figure 1

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).
Printed Edition Available!
A printed edition of this Special Issue is available here.

Share & Cite This Article

MDPI and ACS Style

Mull, B.; Möhlmann, L.; Wilke, O. Photocatalytic Degradation of Toluene, Butyl Acetate and Limonene under UV and Visible Light with Titanium Dioxide-Graphene Oxide as Photocatalyst. Environments 2017, 4, 9.

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



[Return to top]
Environments EISSN 2076-3298 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top