Tai, Xin Hong and Lai, Chin Wei and Yang, Thomas Chung Kuang and Chen, Chia-Yun and Abdullah, Abdul Halim and Lee, Kian Mun and Juan, Joon Ching (2022) Effective oxygenated boron groups of boron-doped photoreduced graphene oxide for photocatalytic removal of volatile organic compounds. Journal of Environmental Chemical Engineering, 10 (4). ISSN 2213-2929, DOI https://doi.org/10.1016/j.jece.2022.108047.
Full text not available from this repository.Abstract
The adverse health effects from indoor air pollutants such as volatile organic compounds (VOCs) has intrigued much attention. Photocatalytic oxidation (PCO) is a promising technique to degrade VOCs under ambient conditions. A metal-free photocatalyst, namely boron-doped photoreduced graphene oxide (BPRGO) was synthesized via a facile, scalable, and cost-effective UV irradiation method. The BPRGO photocatalyst managed to remove 80% of the VOCs (100 mg/m3 of methanol) within 6 h (0.283 h-1) under UV-A irradiation. Moreover, up to 91% of the VOCs were successfully mineralised into harmless CO2. The high photoactivity of BPRGO-1.0 was due to the high amount of oxygenated boron groups (OBGs) namely BC2O and BCO2 groups. The suitable amount of B dopants led to a higher hole carrier density and p-type conductivity. This had retarded the charge carrier recombination which improved the photocatalytic removal of VOCs. This work provides new insights of metalfree BPRGO photocatalyst for VOCs removal.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education (Grant No: FRGS/1/2021/STG05/UM/02/3), Universiti Malaya (Grant No: PPSI-2020-CLUSTER-IDIG03 & ST080-2021) |
| Uncontrolled Keywords: | Photocatalysis; B doping; Graphene oxide; Air remediation; Photoreduction |
| Subjects: | Q Science > QD Chemistry |
| Divisions: | Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Oct 2023 08:00 |
| Last Modified: | 19 Oct 2023 08:00 |
| URI: | http://eprints.um.edu.my/id/eprint/41904 |
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