Zhang Jie, Wang Jia, Xu Huihui, Lv Xianzi, Zeng YuXiang, Duan Jizhou, Hou Baorong
Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Chinese Academy of Sciences 7 Nanhai Road Qingdao 266071 China
Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology Qingdao 266237 China.
RSC Adv. 2019 Nov 13;9(63):37109-37118. doi: 10.1039/c9ra06810d. eCollection 2019 Nov 11.
With the discharge of large amount of organic pollutants and antibiotics into the water environment, the water cycle has been seriously polluted, and at the same time, various drug-resistant bacteria have emerged in succession, which poses a serious threat to human health. In recent years, photocatalytic nanomaterials have become a research hotspot in the antimicrobial area. In this study, AgBr/AgVO photocatalysts were prepared by a hydrothermal process and an growth method. The composites were tightly connected by the (501) plane of AgVO and the (200) lattice plane of AgBr. The photocatalytic activity was tested by degrading Rhodamine B (RhB) solution under visible-light, and the result indicated that the photodegradation rate for RhB solution was 92.3% by the photocatalysis with 0.5AgBr/AgVO and the photocatalytic performance of 0.5AgBr/AgVO was improved compared to pure AgVO and AgBr. In addition, more than 99.997% of , , and cells were killed by the photocatalysis with 0.5AgBr/AgVO within 30 min. These results demonstrated that the 0.5AgBr/AgVO heterojunction photocatalyst could be widely used in the treatment of environmental pollution and in the antibacterial field.
随着大量有机污染物和抗生素排入水环境，水循环受到严重污染，与此同时，各种耐药菌相继出现，对人类健康构成严重威胁。近年来，光催化纳米材料成为抗菌领域的研究热点。在本研究中，通过水热法和一种生长方法制备了AgBr/AgVO光催化剂。复合材料通过AgVO的(501)面和AgBr的(200)晶格面紧密连接。通过在可见光下降解罗丹明B（RhB）溶液测试光催化活性，结果表明，0.5AgBr/AgVO光催化作用下RhB溶液的光降解率为92.3%，且0.5AgBr/AgVO的光催化性能相较于纯AgVO和AgBr有所提高。此外，0.5AgBr/AgVO光催化作用在30分钟内可杀死超过99.997%的 、 和 细胞。这些结果表明，0.5AgBr/AgVO异质结光催化剂可广泛应用于环境污染治理和抗菌领域。
