A MOF-derived ZIF-8@Zn1-xNixO photocatalyst with enhanced photocatalytic activity

作者：Jing, Yanqiu; Wang, Jianan; Yu, Baohua; Lun, Jin; Cheng, Yuyuan; Xiong, Bin; Lei, Qiang; Yang, Yongfeng; Chen, Liangyuan; Zhao, Mingqin^*

来源：RSC Advances, 2017, 7(67): 42030-42035.

DOI：10.1039/c7ra08763b

• DEGRADATION
• ZIF-8
• NANOCOMPOSITE
• HETEROSTRUCTURES
• TRANSFORMATION
• FABRICATION
• NANORODS
• CARBON
• CO2

Today, metal doped ZnO exhibits good performances and attracts worldwide attention. In this paper, a ZIF-8@Zn1-xNixO photocatalyst was successfully prepared using MOF as precursor and AgNO3 as catalyst. We explored the influence of Ni content on the photocatalytic activity of ZIF-8@Zn1-xNixO. The structure and properties of ZIF-8@Zn1-xNixO were characterized by XRD, SEM, FT-IR, BET, UV-vis diffuse reflectance spectroscopy and so on. The results show that Ni is well loaded in ZIF-8 and part of ZIF-8 is oxidized to form Zn1-xNixO composites. The photocatalytic performance of ZIF-8@Zn1-xNixO was evaluated by degradation of rhodamine B (RhB) solution under UV light. It was found that ZIF8@Zn0.95Ni0.05O exhibited the highest photocatalytic degradation efficiency and can degrade 99.19% rhodamine B solution after 20 min under UV light. Furthermore, ZIF-8@Zn0.95Ni0.05O exhibits high stability. After five repeated cycles, its photocatalytic activity remains at 97.43%.

• 出版日期2017
• 单位河南农业大学