Antibacterial and photocatalytic properties of Cu2O/ZnO composite film synthesized by electrodeposition

作者：Hong, Wei; Meng, Mianwu^*; Liu, Qingye; Gao, Dingding; Kang, Caiyan; Huang, Siyu; Zhou, Zhenming; Chen, Chunqiang

来源：Research on Chemical Intermediates, 2017, 43(4): 2517-2528.

DOI：10.1007/s11164-016-2777-3

• Electrodeposition method
• Cu2O/ZnO composite film
• Photocatalytic
• Antibacterial property
• Formaldehyde degradation

The high antibacterial and photocatalytic activities of Cu2O/ZnO composite films were synthesized through the electrodeposition method. The crystalline phase and microstructure of the film samples were analyzed based on X-ray diffraction and scanning electron microscopy. The Cu2O/ZnO composite film-50 min has uniform and compact film structure with a large surface area. Compared with neat Cu2O film, the spectral response range of Cu2O/ZnO composite film was clearly enlarged to 265-560 nm, indicating that it had stronger spectral response ability in both UV and visible light. Among all the photocatalytic film samples, the Cu2O/ZnO composite film-50 min showed a better antibacterial activity against Escherichia coli (90.23 %) and Staphylococcus aureus (88.78 %) under fluorescent light. In addition, the Cu2O/ZnO composite film-50 min also exhibited the optimal photocatalytic property for the degradation of formaldehyde (80.33 %) under LED light irradiation. Moreover, the high photocatalytic and antibacterial stability in the cycle experiment indicate that Cu2O/ZnO composite film-50 min could be an excellent semiconductor photocatalytic material with high usability in practical applications.

• 出版日期2017-4
• 单位广西师范大学