Hollow microsphere BiOBr photocatalyst was synthesized using hydrothermal method. BiOBr photocatalyst doped with different content of Fe were prepared by regulating Fe3+/Bi3+molar ratio. The crystal structure, morphology, optical and electrochemical properties of Fe-doped BiOBr photocatalyst were characterized respectively. With organic dye Congo red (CR) as the pollutant, its photocatalysis was evaluated by testing the degradation effect of the photocatalyst on the pollutant under visible light irradiation. The results showed that the photocatalytic material with 7% Fe doping exhibited the optimal photocatalytic performance. The degradation efficiency of CR within 180 min of irradiation with 5 W light-emitting diode (LED) was 89.66%, which was much higher than that of undoped BiOBr (62.82%). It is found that the enhanced photocatalytic performance of Fe-doped BiOBr is attributed to the enhanced light absorption and the efficient transfer and separation of photogenerated carriers.
| 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 |