期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 265, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118572
关键词
Graphene oxide; Sodium anthraquinone-2-sulfonate; Photo-induced; Antibacterial; Visible light
资金
- National Natural Science Foundation of China [51602001]
- Anhui Provincial Natural Science Foundation [1608085QE106]
- Scientific Research Fund of Anhui Provincial Education Department [KJ2017A030, KJ2018A0038]
- Anhui Province Institute of High Performance Rubber Materials and Products
- 211 Project of Anhui University
Graphene oxide (GO) modified with anthraquinone-2-sodium sulfonate (AQS) through a non-covalent procedure was applied as a highly efficient photo-induced nano-antibacterial agent for inactivating Escherichia coli (E. coli) in this work. The structure properties, morphologies and optical properties of the GO and AQS-GO were confirmed by various characteristic techniques. The photo-induced antibacterial effect of nano-antibacterial materials were assessed by checking the inhibition ability to E. coli under visible light (3 W) irradiation. The results exhibited that the photo-induced antibacterial effect of AQS-GO composite could reach 99% after 160 min of light exposure. The mechanism of enhanced disinfection activity was due to the synergistic effect of AQS and GO, which increased photo-generated reactive oxygen species (ROS). Scavengers of different reactive species and ESR technique revealed that center dot OH played a major role rather than others during photo-induced antibacterial process. It was a promising solar-driven material for avoiding pathogenic infection in practice.
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