WANG Yang (1995-), male, Master candidate. E-mail: 1527336980@qq.com
A zirconia nanopowder was prepared by a sol-gel method using ZrOCl2·8H2O as zirconium source and polyethylene oxide-polypropylene oxide-polyethylene oxide (P123) as a dispersant. In the preparation, carbon nanoparticles generated via carbonization of P123 have an effect on the dispersion of zirconia particles, thus obtaining zirconia nanopowder without impurity ions via water washing/alcohol washing. The results show that zirconia nanopowder with a narrow particle size distribution and a median size (D50) of 158 nm can be obtained at a mass ratio of P123 to zirconia of 80% and calcination temperature of 1 100 ℃. This method could be used as an environmentally friendly and efficient approach for the preparation of the nanopowder
| 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 |