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| Structural Characterization and Its Antibacterial and Antifouling Properties of AgBr/Ag2MoO4@AgVO3 Photocatalyst |
| Received:February 04, 2019 Revised:May 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.05.000 |
| KeyWord:photocatalysis degradation sterilization antifouling |
| Author | Institution |
| XU Hui-hui |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China; 2. Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao , China; 3. University of Chinese Academy of Sciences, Beijing , China; 4. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao , China |
| ZHANG Jie |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China; 2. Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao , China; 4. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao , China |
| LYU Xian-zi |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China; 2. Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao , China; 4. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao , China |
| NIU Tian-jie |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China |
| ZENG Yu-xiang, |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China |
| DUAN Ji-zhou |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China; 2. Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao , China; 4. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao , China |
| HOU Bao-rong |
1. Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences, Qingdao , China; 2. Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology, Qingdao , China; 4. Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao , China |
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| Abstract: |
| Objective To prepare novel photocatalytic composite material and improve its photocatalytic performance. Methods AgBr / Ag2MoO4 @ AgVO3 photocatalysts with different molar ratios were prepared with hydrothermal process and in situ growth method. The morphology and structure of AgBr/Ag2MoO4@AgVO3 nanocomposites were revealed by X-ray powder diffraction (XRD), scanning electron microscopy (SEM) and high resolution transmission electron microscopy (HRTEM). The organic pollutant rhodamine B (RhB) was taken as the degradation target to carry out photocatalytic activity tests to investigate effects of photocatalytic performance with composite materials of different molar ratios under visible light irradiation. At the same time, P. aeruginosa, S. aureus and E. coli were used as model bacteria to carry out antibacterial tests to investigate the bactericidal properties of the photocatalysts. Results The composites were tightly connected by the (501) lattice plane of AgVO3, the (311) plane of Ag2MoO4, and the (200) lattice plane of AgBr. The photodegradation rate for Rhodamine B (RhB) reached 94.9% within 12 min after the composite was added, but 7.8% of the RhB was degraded when pure AgVO3 was used, which showed that the photocatalytic performance of the composite material was obviously improved. In addition, in the photocatalysis sterilization test, more than 99.99% of E. coli, S. aureus, and P. aeruginosa cells were killed within 90 minutes. Conclusion The AgBr/Ag2MoO4 @ AgVO3 photocatalyst has excellent photocatalytic degradation performance, bactericidal performance and stability, which can play a certain role in treatment of environmental pollution and marine sterilization and antifouling treatment. |
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