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Nanolayered Ti3C2 and SrTiO3 Composites for Photocatalytic Reduction and Removal of Uranium(VI)
Abstract
Given its promising electron transportation ability, excellent electrical conductivity, and larger work function (6.2 eV) disclosed by density functional theory calculations, MXene material, O-terminated Ti 3 C 2 has the potential to serve as a perfect cocatalyst. Herein, a novel Ti 3 C 2 /SrTiO 3 heterostructure based on partly superficial oxidation from precursor multilayered Ti 3 C 2 is developed as a photocatalyst for efficiently photocatalytic reduction and removal of U(VI). Specifically, the composite of 2 wt % Ti 3 C 2 /SrTiO 3 (0.02 Ti 3 C 2 /SrTiO 3 ) exhibits an excellent photocatalytic UO 2 2+ removal rate of 77%, which is nearly 38 times higher than that of the pristine SrTiO 3 . The enhanced photocatalytic performance of 0.02 Ti 3 C 2 /SrTiO 3 is systematically identified by photoluminescence spectroscopy, UV–vis diffuse reflectance spectroscopy, Raman spectroscopy, and electrochemical characterizations. The multilayered Ti 3 C 2 as a cocatalyst can facilitate the charge transportation and inhibit the recombination of electrons in the conduction band. This work establishes the enticing potential for developing doped perovskite oxide crystals based on the MXene Ti 3 C 2 with sun-light responsivity for improving solar energy utilization.
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Citations
Cites
Roles of Cocatalysts in Photocatalysis and Photoelectrocatalysis
Yang, J., Wang, D., Han, H., & Li, C. (2013) · Accounts of Chemical Research · doi:10.1021/ar300227e · Cited by 2,848
Xiang, Q., Yu, J., & Jaroniec, M. (2012) · Journal of the American Chemical Society · doi:10.1021/ja302846n · Cited by 2,360
Cited by
A Review on MXene Synthesis, Stability, and Photocatalytic Applications
Murali, G., Reddy Modigunta, J. K., Park, Y. H., Lee, J.-H., Rawal, J., Lee, S.-Y., In, I., & Park, S.-J. (2022) · ACS Nano · doi:10.1021/acsnano.2c04750 · Cited by 668
MXenes as emerging nanomaterials in water purification and environmental remediation
Yu, S., Tang, H., Zhang, D., Wang, S., Qiu, M., Song, G., Fu, D., Hu, B., & Wang, X. (2022) · Science of The Total Environment · doi:10.1016/j.scitotenv.2021.152280 · Cited by 445
Ti3C2 2D MXene: Recent Progress and Perspectives in Photocatalysis
Tang, R., Xiong, S., Gong, D., Deng, Y., Wang, Y., Su, L., Ding, C., Yang, L., & Liao, C. (2020) · ACS Applied Materials & Interfaces · doi:10.1021/acsami.0c12905 · Cited by 259
Highly efficient uranium extraction by a piezo catalytic reduction-oxidation process
Cai, Y., Zhang, Y., Lv, Z., Zhang, S., Gao, F., Fang, M., Kong, M., Liu, P., Tan, X., Hu, B., et al. (2022) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2022.121343 · Cited by 177
Metadata
- Authors
- Deng, H., Li, Z.-J., Wang, L., Yuan, L.-Y., Lan, J.-H., Chang, Z.-Y., Chai, Z.-F., & Shi, W.-Q.
- Venue
- ACS Applied Nano Materials
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-03-27
- Volume
- 2
- Issue
- 4
- Pages
- 2283-2294
- ISSN
- 2574-0970 (ISSN-L)
- OpenAlex
- W2927327533
- Cited by
- 172
- References
- 2
- FWCI
- 4.33
- Type
- journal article
- Language
- en
- Open access
- closed
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- Deng, H., Li, Z.-J., Wang, L., Yuan, L.-Y., Lan, J.-H., Chang, Z.-Y., Chai, Z.-F., & Shi, W.-Q. (2019). Nanolayered Ti3C2 and SrTiO3 Composites for Photocatalytic Reduction and Removal of Uranium(VI). ACS Applied Nano Materials. https://doi.org/10.1021/acsanm.9b00205
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