Full
DI Yonghao (1987-), male, Doctoral candidate. E-mail: 15801765406@163.com
Outline
Acid leaching, alkali leaching and alkali leaching combined with hydrothermal process were used to control the pore structure of stellerite, while the pore structure characteristics, phase composition, micro morphology, chemical composition and humidity controlling performance of stellerite samples were systematically evaluated. The acid treatment led to an increase in the number of micropores and mesopores of 2-10 nm, while the alkali treatment resulted in an increment in the number of mesopores of 2-50 nm. The combined process of alkali leaching and hydrothermal allowed the pore structure regulation of stellerite at lower alkali concentrations. The moisture absorption capacity of the stellerite was increased as the number of micropores was increased, while the moisture release behavior was enhanced if the number of the 10-50 nm mesopore and macropore was raised. In the relative humidity range of 33-75%, the balance of moisture absorption and desorption of the alkali treated samples was better than that of those the acid treated ones. After leaching with 3 mol/L hydrochloric acid solution, 5 mol/L sodium hydroxide solution and 0.6 mol/L sodium hydroxide solution hydrothermal reaction, the 12 h moisture control capacities reached 4.44%, 5.41% and 3.72% respectively, which were 4.62 times, 5.84 times and 3.71 times respectively higher than that of the untreated stellerite.
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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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