Tai, Xin Hong and Lai, Chin Wei and Yang, Thomas Chung Kuang and Lee, Kian Mun and Boonyuen, Supakorn and Jiwanti, Prastika Krisma and Juan, Joon Ching (2024) Enrichment of graphitic-N in nitrogen-doped photoreduced graphene oxide as highly efficient photocatalyst for mineralization of volatile organic compounds. Materials Today Chemistry, 42. p. 102372. ISSN 2468-5194, DOI https://doi.org/10.1016/j.mtchem.2024.102372.
Full text not available from this repository.Abstract
Exposures to air pollutants such as volatile organic compounds cause severe health effects. Photocatalysis is a technology that uses light energy and a photocatalyst to perform chemical reactions, such as the oxidation of indoor VOCs. Herein, a nitrogen-doped photoreduced graphene oxide (NPRGO) photocatalyst was synthesized via a facile solution-based photoirradiation method. The photoirradiation method allowed us to tailor the nitrogen (N) dopant concentration and configuration. The NPRGO photocatalyst demonstrated remarkable photocatalytic properties, such that 100 mg/m3 of gaseous methanol under UV-A irradiation was completely mineralised into harmless CO2 and water at a rate of 0.376 h- 1. This is attributed to the substantial content of graphitic- N groups on the NPRGO, which induced a high free-electron carrier density and a strong n-type conductivity. These advantageous properties of the NPRGO consequently improved the separation of photoinduced charge carriers, therefore enhancing the photodegradation of VOCs. This work demonstrates a new approach for the development of metal-free NPRGO photocatalyst in air pollution remediation.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia (FRGS/1/2021/STG05/UM/02/3), Universiti Malaya, Malaysia (ST022-2023-2021), Thailand Science Research and Innovation Fundamental Fund |
| Uncontrolled Keywords: | N -doping; Donor level; Photodoping; Photoreduction; Air pollution |
| Subjects: | Q Science > QD Chemistry T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Feb 2025 02:25 |
| Last Modified: | 18 Feb 2025 02:25 |
| URI: | http://eprints.um.edu.my/id/eprint/47392 |
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