In this study, the main antibacterial agent employed was nano-ZnO/Cu 2 O composite powder. The nano-ZnO/Cu 2 O composite powder was thoroughly dispersed within the gel precursor and subsequently utilized as a carrier for the preparation of porous SiO 2 via sol–gel method. Finally, porous SiO 2 /ZnO/Cu 2 O composites were obtained. Through the characterization of the phase and structure of the composites, it can be found that nano-ZnO/Cu 2 O is physically embedded in the porous SiO 2 skeleton and fully combined with the porous SiO 2 . Finally, porous SiO 2 /ZnO/Cu 2 O composites were successfully synthesized. The phase and structure of the composites were thoroughly characterized, revealing that nano-ZnO/Cu 2 O was physically embedded within the porous SiO 2 framework and exhibits excellent integration with the porous SiO 2 matrix. Compared to single-component nano-ZnO/Cu 2 O, the composite exhibits significantly enhanced specific surface area and improved pore properties, thereby leading to an enhancement in photocatalytic performance. Furthermore, the antibacterial performance test of the composites clearly demonstrates a remarkable 100% antibacterial rate. Porous SiO 2 /ZnO/Cu 2 O composites offer a novel avenue for enhancing the antibacterial properties of ZnO and Cu 2 O.
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Li et al. (2024) studied this question.
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