WANG Yan (1994-), female, Master candidate. E-mail: wy-199406@163.com
A seriesof g-C3N4-ZnO composites were synthesized by a hydrothermal method, and the structural and morphological properties of as-prepared composites were using characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR) and X-ray photoelectron spectroscopy (XPS). The gas sensing properties of g-C3N4-ZnO composites were investigated. The results indicate that the content of g-C3N4 in the composite has an effect on the gas sensing performances of the materials. 9% g-C3N4-ZnO composite exhibits the optimized gas sensing properties at 300 ℃. The response to 1×10-6 acetic acid vapor reaches 1.8, and the response/recovery time at different concentrations of acetic acid vapor (i.e., 10-6-10-3) is shorter than 36 s.
| 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 |