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Graphene and g-C3N4Nanosheets Cowrapped Elemental α-Sulfur As a Novel Metal-Free Heterojunction Photocatalyst for Bacterial Inactivation under Visible-Light
Abstract
A new class of metal-free heterojunction photocatalysts was prepared by wrapping reduced graphene oxide (RGO) and g-C3N4 (CN) sheets on crystals of cyclooctasulfur (α-S8). Two distinctive structures were fabricated by wrapping RGO and CN sheets in different orders. The first was RGO sheets sandwiched in heterojunction of CN sheets and α-S8 (i.e., CNRGOS8), while the second structure was the other way around (i.e., RGOCNS8). Both structures exhibited antibacterial activity under visible-light irradiation. CNRGOS8 showed stronger bacterial inactivation than RGOCNS8 in aerobic conditions. However, RGOCNS8 was more active than CNRGOS8 under anaerobic condition. A possible mechanism was proposed to explain the differences between photocatalytic oxidative inactivation and reductive inactivation. As a proof-of-concept, this work could offer new inroads into exploration and utilization of graphene sheets and g-C3N4 sheets cowrapped nanocomposites for environmental applications.
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Cited by
Ong, W.-J., Tan, L.-L., Ng, Y. H., Yong, S.-T., & Chai, S.-P. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.6b00075 · Cited by 7,147
Dong, G., Zhang, Y., Pan, Q., & Qiu, J. (2014) · Journal of Photochemistry and Photobiology C: Photochemistry Reviews · doi:10.1016/j.jphotochemrev.2014.04.002 · Cited by 1,085
Basavarajappa, P. S., Patil, S. B., Ganganagappa, N., Reddy, K. R., Raghu, A. V., & Reddy, C. V. (2020) · International Journal of Hydrogen Energy · doi:10.1016/j.ijhydene.2019.07.241 · Cited by 893
Zhao, H., Yu, H., Quan, X., Chen, S., Zhang, Y., Zhao, H., & Wang, H. (2014) · Applied Catalysis B: Environmental · doi:10.1016/j.apcatb.2014.01.023 · Cited by 455
Kumar, A., Raizada, P., Singh, P., Saini, R. V., Saini, A. K., & Hosseini-Bandegharaei, A. (2020) · Chemical Engineering Journal · doi:10.1016/j.cej.2019.123496 · Cited by 435
Metadata
- Authors
- Wang, W., Yu, J. C., Xia, D., Wong, P. K., & Li, Y.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2013-07-29
- Volume
- 47
- Issue
- 15
- Pages
- 8724-8732
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2330845752
- Cited by
- 418
- References
- 0
- FWCI
- 11.90
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: Graphene and g-C3N4Nanosheets Cowrapped Elemental α-Sulfur As a Novel Metal-Free Heterojunction Photocatalyst for Bacterial Inactivation under Visible-Light. https://app.cochat.ai/papers/10.1021/es4013504
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- Wang, W., Yu, J. C., Xia, D., Wong, P. K., & Li, Y. (2013). Graphene and g-C3N4Nanosheets Cowrapped Elemental α-Sulfur As a Novel Metal-Free Heterojunction Photocatalyst for Bacterial Inactivation under Visible-Light. Environmental Science & Technology. https://doi.org/10.1021/es4013504
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