One-pot photochemical synthesis of solution-stable TiO2-polypyrrole nanocomposite for the photodegradation of methyl orange Buenviaje, Salvador C, Usman, Ken Aldren S, Edañol, Yasmin De Guzman, Maylem, Genes P and Payawan, Leon M 2020, One-pot photochemical synthesis of solution-stable TiO2-polypyrrole nanocomposite for the photodegradation of methyl orange, in ICAMR 2020 : Proceedings of the 10th International Conference on Advanced Materials Research 2020, Trans Tech Publications, Zurich, Switzerland, pp. 217-222, doi: 10.4028/www.scientific.net/KEM.853.217. Title One-pot photochemical synthesis of solution-stable TiO2-polypyrrole nanocomposite for the photodegradation of methyl orange Author(s) Buenviaje, Salvador C Usman, Ken Aldren S orcid.org/0000-0001-7102-6847 Edañol, Yasmin De Guzman Maylem, Genes P Payawan, Leon M Conference name Advanced Materials Research. Conference (10th : 2020 : Okinawa, Japan) Conference location Okinawa, Japan Conference dates 2020/01/17 - 2020/01/20 Title of proceedings ICAMR 2020 : Proceedings of the 10th International Conference on Advanced Materials Research 2020 Editor(s) Wu, AF Tak Lau, AK Publication date 2020 Series Advanced Materials Research Conference Start page 217 End page 222 Total pages 6 Publisher Trans Tech Publications Place of publication Zurich, Switzerland Keyword(s) kinetics nanomaterials photocatalysis TiO2 Summary Photocatalysis is a promising technology used in wastewater treatment. However, the practical application of this approach has been hindered by several factors. One issue is the aggregation of the photocatalyst in solution which leads to significant decrease in catalytic efficiency. Recent innovations in photochemical research have geared towards improving the colloidal stability of well-known photocatalysts such as titanium dioxide (TiO2). In this study, a simple method of imparting colloidal stability to TiO2, through one-pot photo-polymerized polypyrrole (PPy) nanoparticle coatings were demonstrated. The resulting TiO2-PPy (TP) dispersions exhibited excellent resistance to aggregation as evident in their uniform particle size distribution (diameter = 81.40 ± 6.58 nm, polydispersity index = 0.412 ± 0.037) and stable zeta-potential values (ζ = 33.15 ± 4.35). The optimum TiO2 to polymer ratio also resulted to significant lowering in band-gap energy (from 3.54 eV to 3.15 eV) which is an indicator of improved photocatalytic properties. Photodegradation of a model pollutant, methyl orange (MO) performed at optimal lightning condition and 4TP dosage showed 35% /hour photocatalytic efficiency. Lastly, kinetic studies suggest that the catalytic performance is dependent on the pollutant concentration as shown by a second-order MO degradation with rate constant of 306.856 x 10-7 M-1 s-1 and proposed rate law of R = k [MO]2. The study had also indicated the chemical conversion of MO to CO2by measuring about 43% decrease in total organic carbon in an hour. ISBN 9783035716481 ISSN 1013-9826 1662-9795 Language eng DOI 10.4028/www.scientific.net/KEM.853.217 Indigenous content off Field of Research 09 Engineering HERDC Research category E1 Full written paper - refereed ERA Research output type E Conference publication Persistent URL http://hdl.handle.net/10536/DRO/DU:30142541 Document type: Conference Paper Collections: Institute for Frontier Materials GTP Research Related Links Link Description   Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved. Versions Version Filter Type Mon, 21 Sep 2020, 16:07:15 EST Tue, 22 Sep 2020, 05:04:16 EST Thu, 04 Mar 2021, 05:03:04 EST Tue, 16 Mar 2021, 11:45:45 EST Tue, 16 Mar 2021, 11:47:05 EST Filtered Full Citation counts:   Cited 0 times in TR Web of Science Cited 0 times in Scopus Search Google Scholar Access Statistics: 6 Abstract Views  -  Detailed Statistics Created: Mon, 21 Sep 2020, 16:07:15 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.