W18O49/SiO2复合材料的制备及其光催化固氮性能研究
Preparation of W18O49/SiO2 composite materials and performance in photocatalytic nitrogen fixation
To enhance the visible light photocatalytic activity of W18O49,SiO2 with a high-purity is produced via the precipitation method,and then a simple solvothermal synthesis is employed to composite SiO2 with W18O49.The performance advantages of the composite materials are explained through using X-ray diffraction (XRD),Fourier transform infrared spectroscopy (FT-IR),scanning electron microscopy (SEM),and X-ray photoelectron spectroscopy (XPS).The results indicate that SiO2 and W18O49 coexist in the composite materials,generating a synergistic effect.Given the high adsorption groups and silanol groups,SiO2 as a carrier,actually as a solid dispersant,fixes W18O49 microspheres uniformly on its surface to prevent them from aggregation,ensuring that more active sites of W18O49 are exposed,promoting charge separation.W18O49/SiO2 composite materials exhibit excellent adsorption and photocatalytic activities,delivering a
SiO2 / nitrogen fixation / photocatalysis / W18O49
| [1] |
|
| [2] |
|
| [3] |
|
| [4] |
|
| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
张菁源. W18O49@ZnIn2S4复合光热催化剂产氢性能及机理的研究[D]. 上海: 上海师范大学, 2024. |
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
山西省科技合作交流专项项目(202304041101040)
山西省基础研究计划资助项(202203021221058)
/
| 〈 |
|
〉 |