Titanium oxide improves boron nitride photocatalytic degradation of perfluorooctanoic acid
| dc.citation.articleNumber | 137735 | en_US |
| dc.citation.journalTitle | Chemical Engineering Journal | en_US |
| dc.citation.volumeNumber | 448 | en_US |
| dc.contributor.author | Duan, Lijie | en_US |
| dc.contributor.author | Wang, Bo | en_US |
| dc.contributor.author | Heck, Kimberly N. | en_US |
| dc.contributor.author | Clark, Chelsea A. | en_US |
| dc.contributor.author | Wei, Jinshan | en_US |
| dc.contributor.author | Wang, Minghao | en_US |
| dc.contributor.author | Metz, Jordin | en_US |
| dc.contributor.author | Wu, Gang | en_US |
| dc.contributor.author | Tsai, Ah-Lim | en_US |
| dc.contributor.author | Guo, Sujin | en_US |
| dc.contributor.author | Arredondo, Jacob | en_US |
| dc.contributor.author | Mohite, Aditya D. | en_US |
| dc.contributor.author | Senftle, Thomas P. | en_US |
| dc.contributor.author | Westerhoff, Paul | en_US |
| dc.contributor.author | Alvarez, Pedro | en_US |
| dc.contributor.author | Wen, Xianghua | en_US |
| dc.contributor.author | Song, Yonghui | en_US |
| dc.contributor.author | Wong, Michael S. | en_US |
| dc.contributor.org | Center for Nanotechnology Enabled Water Treatment | en_US |
| dc.date.accessioned | 2022-08-08T15:08:41Z | en_US |
| dc.date.available | 2022-08-08T15:08:41Z | en_US |
| dc.date.issued | 2022 | en_US |
| dc.description.abstract | Boron nitride (BN) has the newly-found property of degrading recalcitrant polyfluoroalkyl substances (PFAS) under ultraviolet C (UV-C, 254 nm) irradiation. It is ineffective at longer wavelengths, though. In this study, we report the simple calcination of BN and UV-A active titanium oxide (TiO2) creates a BN/TiO2 composite that is more photocatalytically active than BN or TiO2 under UV-A for perfluorooctanoic acid (PFOA). Under UV-A, BN/TiO2 degraded PFOA ∼ 15 × faster than TiO2, while BN was inactive. Band diagram analysis and photocurrent response measurements indicated that BN/TiO2 is a type-II heterojunction semiconductor, facilitating charge carrier separation. Additional experiments confirmed the importance of photogenerated holes for degrading PFOA. Outdoor experimentation under natural sunlight found BN/TiO2 to degrade PFOA in deionized water and salt-containing water with a half-life of 1.7 h and 4.5 h, respectively. These identified photocatalytic properties of BN/TiO2 highlight the potential for the light-driven destruction of other PFAS. | en_US |
| dc.identifier.citation | Duan, Lijie, Wang, Bo, Heck, Kimberly N., et al.. "Titanium oxide improves boron nitride photocatalytic degradation of perfluorooctanoic acid." <i>Chemical Engineering Journal,</i> 448, (2022) Elsevier: https://doi.org/10.1016/j.cej.2022.137735. | en_US |
| dc.identifier.doi | https://doi.org/10.1016/j.cej.2022.137735 | en_US |
| dc.identifier.uri | https://hdl.handle.net/1911/113051 | en_US |
| dc.language.iso | eng | en_US |
| dc.publisher | Elsevier | en_US |
| dc.rights | This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier. | en_US |
| dc.title | Titanium oxide improves boron nitride photocatalytic degradation of perfluorooctanoic acid | en_US |
| dc.type | Journal article | en_US |
| dc.type.dcmi | Text | en_US |
| dc.type.publication | post-print | en_US |