Journal
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
Volume 30, Issue -, Pages 10-13Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jiec.2015.05.010
Keywords
Direct Red 80; Pickering emulsion; Photocatalytic degradation; TiO2; Toluene
Funding
- Human Resource Training Program for Regional Innovation and Creativity through the Ministry of Education and National Research Foundation (NRF) of Korea [NRF-2014H1C1A1066929]
- ME
- NRF of Korea [NRF-2009-0093819, NRF-2013R1A1A4A01008000]
- NRF grant by the Korea government (MSIP) [NRF-2015M2A7A1000194]
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An adverse effect of a water-immiscible pollutant, toluene, on the photocatalytic degradation of Direct Red 80 (DR80) with TiO2 in an aqueous solution was observed when toluene was added as a continuous free layer. However, a more efficient photocatalytic system was obtained when toluene was added in the Pickering emulsion (PE) form with TiO2. With only UV and two different types of TiO2 (more hydrophilic and large-sized type A TiO2 and less hydrophilic and small-sized type B TiO2), 44% and 59% color removal was observed, respectively. Almost 20% decrease in color removal with toluene in the continuous free layer form was observed, however, the higher color removal was obtained when toluene was added as PE stabilized with type B TiO2 than with type A TiO2. The higher color removal was owing to the good stability of PE stabilized with type B TiO2. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
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