LIUZhi-sheng,WANGJian-hui,YANGHai-peng,et al.Preparation of C/ZnO/BiOI and Its Photocatalytic Property for Ceftazidime[J].China Water & Wastewater,2023,39(23):75-82.
Preparation of C/ZnO/BiOI and Its Photocatalytic Property for Ceftazidime
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第39卷
Number:
第23期
Page:
75-82
Column:
Date of publication:
2023-12-01
- Keywords:
- photocatalysis; zinc oxide; carbon; iodine bismuth oxide; ceftazidime
- Abstract:
- Nano-ZnO was prepared by hydrothermal method with zinc acetate and sodium hydroxide as raw materials, and then nano-C/ZnO was prepared with glucose as carbon source. The prepared BiOI was compounded with C/ZnO by ultrasonic method to obtain ternary composite C/ZnO/BiOI. The C/ZnO/BiOI samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), ultraviolet visible diffuse reflectance spectroscopy (UV-Vis) and photoluminescence (PL). The ternary composite catalyst C/ZnO/BiOI had good crystallinity and high purity. The interlaced lattice fringes showed that there were heterojunctions between ZnO and BiOI. The heterojunction delayed the binding of electrons and holes, and the good charge conductivity of C accelerated the carrier transport efficiency and greatly improved the photocatalytic activity. Under the simulated sunlight created by mercury lamp, C/ZnO/BiOI demonstrated degradation rate of 98.52% for ceftazidime within 180 min, which was 51.07% higher than that of ZnO.
Last Update:
2023-12-01