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Graphene oxide enwrapped Ag3PO4 composite: towards a highly efficient and stable visible-light-induced photocatalyst for water purification
Abstract
A novel graphene oxide (GO) enwrapped Ag3PO4 (GO–Ag3PO4) composite as a visible-light-induced photocatalyst has been fabricated through an ion-exchange method of CH3COOAg and Na2HPO4 in the presence of GO sheets. Scanning electron microscope and X-ray diffraction analysis confirmed that Ag3PO4 particles have been enwrapped by GO sheets. The UV-vis spectra curve of the GO–Ag3PO4 composite showed strong absorbance in the visible light regions. The photocatalytic activity of the composite was evaluated by the degradation of organic dye (AO7) and phenol under visible-light irradiation. The results indicated that this novel GO–Ag3PO4 composite exhibited significantly higher photocatalytic activities and improved stability under visible-light irradiation, compared with bare Ag3PO4. Moreover, the GO–Ag3PO4 composite showed both excellent intrinsic antibacterial and visible-light-induced photocatalytic disinfection activities toward E. coli cells. The possible mechanism for the enhanced photocatalytic properties and antibacterial activity of the GO–Ag3PO4 composite was also discussed. Our finding paves a way to design highly efficient and stable visible-light-induced photocatalysts for the removal of organic pollutants and pathogenic bacteria for water purification.
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Cites
The chemistry of graphene oxide
Dreyer, D. R., Park, S., Bielawski, C. W., & Ruoff, R. S. (2010) · Chem. Soc. Rev. · doi:10.1039/b917103g · Cited by 11,653
Liu, J., Bai, H., Wang, Y., Liu, Z., Zhang, X., & Sun, D. D. (2010) · Advanced Functional Materials · doi:10.1002/adfm.201001391 · Cited by 776
Self-citation
Cited by
Nanocatalysts and other nanomaterials for water remediation from organic pollutants
Lu, F., & Astruc, D. (2020) · Coordination Chemistry Reviews · doi:10.1016/j.ccr.2020.213180 · Cited by 682
Graphene oxide: A promising nanomaterial for energy and environmental applications
Li, F., Jiang, X., Zhao, J., & Zhang, S. (2015) · Nano Energy · doi:10.1016/j.nanoen.2015.07.014 · Cited by 674
Graphene-based heterojunction photocatalysts
Li, X., Shen, R., Ma, S., Chen, X., & Xie, J. (2018) · Applied Surface Science · doi:10.1016/j.apsusc.2017.08.194 · Cited by 494
Graphene and Graphene Oxide-Based Composites for Removal of Organic Pollutants: A Review
Thakur, K., & Kandasubramanian, B. (2019) · Journal of Chemical & Engineering Data · doi:10.1021/acs.jced.8b01057 · Cited by 469
Tu, W., Zhou, Y., & Zou, Z. (2013) · Advanced Functional Materials · doi:10.1002/adfm.201203547 · Cited by 377
Metadata
- Authors
- Liu, L., Liu, J., & Sun, D. D.
- Venue
- Catalysis Science & Technology
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2012
- Volume
- 2
- Issue
- 12
- Pages
- 2525
- ISSN
- 2044-4753 (ISSN-L)
- 2044-4761
- OpenAlex
- W2048408186
- Cited by
- 229
- References
- 2
- FWCI
- 9.23
- Type
- journal article
- Language
- en
- Open access
- closed
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- Liu, L., Liu, J., & Sun, D. D. (2012). Graphene oxide enwrapped Ag3PO4 composite: towards a highly efficient and stable visible-light-induced photocatalyst for water purification. Catalysis Science & Technology. https://doi.org/10.1039/c2cy20483e
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