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All Journal Bulletin of Chemical Reaction Engineering & Catalysis
Chi, Tran Kim
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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Investigating for Photocatalytic Activity of Hybrid TiO2/Reduced Graphene Oxide and Application in Reducing VOCs Thanh, Nguyen Thi Phuong; Danh, Nguyen Thanh; Nguyen, Tran Quang; Giang, Huynh Van; Chi, Tran Kim; Giang, Le Thuy Thanh; Trung, Tran Quang
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 1 Year 2024 (April 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20042

Abstract

In this study, rGO/TiO2 hybrid nanostructures (rGO : reduced Graphene Oxide)  have been successfully fabricated for the purpose of application in the treatment of volatile organic compound (VOCs) that harmful for the environment through the method of directly measuring the change in concentration of decomposed VOCs in real time under UV-excited conditions using a home-made measuring system. the results showed that hybrids TiO2 : rGONFs (reduced Graphene Oxide nano flake) samples with the weight ratio between two kind of material are 99%:1% and 98%:2% which reduced VOCs faster than 2 time intrinsic TiO2. The phenomenon of 2D materials involved in the hybrids lead to the fact that the photocatalytic activity of TiO2 had been significantly improved, this can be explained as follows: When heterogeneous hybrid was formed, because of the difference in energy levels of conduction band between two materials was negligible, heterojunction barrier is not too high this made the photogenerated electrons from TiO2 easily move through rGONFs under UV stimulation. This thing has significantly reduced the recombination of the generated carrier in TiO2 during irradiation, which lead to an increase in the lifetime of the carrier and make photocatalytic reaction of the assembly become more effective. Copyright © 2024 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Co-Authors Danh, Nguyen Thanh Giang, Huynh Van Giang, Le Thuy Thanh Nguyen, Tran Quang Thanh, Nguyen Thi Phuong Trung, Tran Quang