SONG Yueying (1996-), female, Master candidate. E-mail: 2461827725@qq.com
TiO2 and attapulgite (AT) were used to construct micro-/nano-structures, and polydimethylsiloxane (PDMS) was used as a low surface energy material to prepare the superhydrophobic photocatalytic coating (AT/TiO2@PDMS). The effect of AT amount on the wettability and photocatalytic performance of the coatings was investigated. The results show that the wetting angle of AT/TiO2@PDMS coating is more than 150° and the contact angle can reach 165° when AT content is 75% (in mass fraction). After exposure to mercury lamp for 11 h, the degradation rate of rhodamine by 25% AT is 94%, and the superhydrophobicity of the coating almost unchanges, indicating that the coating has good photocatalytic activity and anti UV linearity. In addition, the coating has a substrate applicability, which can be applied to various substrates. The wettability on the surface of the coating with some common droplets and acid/alkaline solutions was examined, showing that the coating has a protective effect on these droplets and solutions. The results by Tafel test show that the coating has a good corrosion resistance. Based on the results by self-cleaning and antifouling tests, the coating has a certain cleaning effect and an antifouling performance. In addition, the coating also shows superior flame retardancy and superhydrophobicity after combustion.
| 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 |