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- Title
Visible-light-driven enhanced antibacterial and biofilm elimination activity of graphitic carbon nitride by embedded Ag nanoparticles.
- Authors
Bing, Wei; Chen, Zhaowei; Sun, Hanjun; Shi, Peng; Gao, Nao; Ren, Jinsong; Qu, Xiaogang
- Abstract
Semiconductor nanomaterials with photocatalytic activity have potential for many applications. An effective way of promoting photocatalytic activity is depositing noble metal nanoparticles (NPs) on a semiconductor, since the noble metal NPs act as excellent electron acceptors which inhibit the quick recombination of the photoexcited electron-hole pairs and thereby enhance the generation of reactive oxygen species (ROS). Herein, a highly effective platform, graphitic carbon nitride (g-CN) nanosheets with embedded Ag nanoparticles (Ag/g-CN), was synthesized by a facile route. Under visible light irradiation, the ROS production of Ag/g-CN nanohybrids was greatly improved compared with pristine g-CN nanosheets, and moreover, the nanohybrids showed enhanced antibacterial efficacy and ability to disperse bacterial biofilms. We demonstrate for the first time that the Ag/g-CN nanohybrids are efficient bactericidal agents under visible light irradiation, and can also provide a new way for biofilm elimination. The enhanced antibacterial properties and biofilm-disrupting ability of Ag/g-CN nanohybrids may offer many biomedical applications. [Figure not available: see fulltext.]
- Publication
Nano Research, 2015, Vol 8, Issue 5, p1648
- ISSN
1998-0124
- Publication type
Article
- DOI
10.1007/s12274-014-0654-1