Mesoporous Ag/ZnO hybrid cages derived from ZIF-8 for enhanced photocatalytic and antibacterial activities

被引：50
作者：
Cui, Junwei [1 ]
Wu, Dapeng [2 ]
Li, Zhenyun [1 ]
Zhao, Guoan [1 ]
Wang, Jinshui [3 ]
Wang, Le [3 ]
Niu, Bingxuan [1 ]
机构：
[1] Xinxiang Med Univ, Affiliated Hosp 1, Dept TB 1, Coll Pharm, Xinxiang 453003, Henan, Peoples R China
[2] Henan Normal Univ, Sch Environm, Xinxiang, Henan, Peoples R China
[3] Henan Univ Technol, Sch Biol Engn, Xinxiang, Henan, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2021年 / 47卷 / 11期
关键词：
ZnO; Ag; Nanoparticles; Photocatalysis; Antibacterial effects; METAL-ORGANIC FRAMEWORK; DOPED ZNO; ANATASE TIO2; ZINC-OXIDE; 001; FACETS; E; COLI; PERFORMANCE; AG; NANOPARTICLES; DEGRADATION;
D O I：
10.1016/j.ceramint.2021.02.148
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Ag/ZnO hybrid cages with well-preserved polyhedron shape and rich mesoporous structures were prepared thorough in situ pyrolysis of AgNO3 impregnated ZIF-8 precursor. Due to the bi-template function of ZIF-8, the asprepared cages show well-defined hollow chamber inherited from the precursor and uniformly embedded Ag nanoparticles (NPs). The as-introduced Ag NPs could enhance the light absorption and promote charge separation, which finally improve the antibacterial performances. Therefore, compared with pure ZnO, the Ag/ZnO hybrid cages demonstrate prominent photocatalytic degradation of different organic dyes, such as Methylene Blue, Methylene Orange, Eosin and Rhodamine B under simulated sunlight. In addition, the hybrid Ag/ZnO cages exhibit outstanding inhibition performances against Escherichia coli, Staphylococcus aureus, and the highly infective Mycobacterium-tuberculosis. The photocatalytic and antibacterial mechanism of the hybrid Ag/ZnO cages were also studied in detail by means of optical/electrochemical dynamic tests and Ag+ and Zn2+ release measurements.
引用
收藏
页码：15759 / 15770
页数：12
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