Full
HAN Lei (1987-), male, Ph.D.. E-mail: hlad0422@163.com
Outline
Diatomite porous ceramics prepared by a foam-gelcasting route were used as a matrix, and SiO2 microspheres in-situ formed by a solvothermal method were used to modify the surface roughness of diatomite porous ceramics. Capstone FS-50 (CS-50) was used as a modifier to prepare SiO2 microspheres and CS-50 co-modified superhydrophilic-superoleophobic diatomite porous ceramics (SSMDPC) for the use of continuous separation of oil/water emulsions. The effects of TEOS/NH3·H2O addition and CS-50 concentration on the microstructure and wettability of the obtained samples as well as the oil/water separation continuous performance and extreme environmental stability were investigated. The results show that the maximum oil contact angles in air and water of the prepared SSMDPC are 153° and 158° respectively at TEOS/NH3·H2O addition of 5%/2% and CS-50 addition of 5% respectively. The continuous separation flux and separation efficiency of SSMDPC for edible oil/water mixture and edible oil-in-water emulsion with a surfactant (5/95, mass ratio) are 162.3 kg·min-1·m-2 and 98.3%, 93.7 kg·min-1·m-2 and 91.3%, respectively. Moreover, SMDPC can still maintain stable hydrophilic and hydrophobic properties under corrosion conditions (i.e., pH value of 1, pH value of 14 and 1 M NaCl), even at -196 ℃ and 200 ℃, which has broad application prospects in oil-in-water emulsion.
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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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