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3C-SiC was synthesized via the sol-gel carbothermal reduction method, and BiVO4/SiC composites were prepared using a hydrothermal approach. The Vis+BiVO4/SiC+PMS system was constructed for the degradation of CIP. Under optimized conditions, 1.0-BiVO4/SiC was added with a dosage of 300mg/L, PMS concentration of 2mmol/L, and initial pH of the reaction of 7—the system achieved a 93.63% CIP degradation rate within 40minutes, with the k of 0.05456min-1. These values represented 3.34 times and 3.27 times enhancement compared to BiVO4 and SiC, respectively. The catalyst was characterized by SEM, XRD, XPS, UV-Vis DRS and electrochemical workstation. The excellent photocatalytic performance of BiVO4/SiC was attributed to the formation of a Z-scheme heterojunction, which could promote the separation of electron-hole pairs while maintaining the high redox activity of the catalyst. Therefore, the Z-Scheme heterojunction formed by BiVO4/SiC could effectively promote the activation of PMS and generate more active species, thus accelerating the degradation process of CIP. The active species in the system were identified as h+、1O2、·O2-、·OH、SO4·--- through the free radical quenching experiment. The efficient degradation of CIP was realized through the interaction of free radicals and non-free radicals. Notably, the catalyst exhibited excellent stability, retaining 89.49% of its initial degradation efficiency after five consecutive cycles. This study not only presents a novel strategy for PMS activation using photocatalysts but also demonstrates its successful application in antibiotic degradation, offering a promising approach for the remediation of organic pollutants in aquatic environments.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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