The novel PAN/PVDF-HFP/TiO2 nanofibrous membranes with a high performance in PM2.5 removal and high-temperature filtration were developed in this study under co-electrospinning-electrospray strategy, with PVDF-HFP/TiO2 as the functional layer and polyacrylonitrile (PAN) as the base membrane. According to the results, the PHT20nanofibrous membrane achieved an efficiency of 99.8% in capturing particulate matters, a low pressure drop of 67Pa, excellent air permeability, and high thermal stability (to 200℃). Moreover, the results of self-cleaning tests showed that the superhydrophobic surfaces of the PAN/PVDF-HFP/TiO2 nanofibrous membranes were resistant to dust particle contamination. To sum up, the multifunctional PPHT20 nanofibrous membrane developed in this study is an effective solution to dust removal at high temperatures.
| 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 |