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采用乙醇作为诱导剂,利用简单的低温水热合成法在木材表面原位生长无机WO_3纳米片,探讨WO_3/木材的光响应功能。使用扫描电镜(SEM)、X射线衍射(XRD)、紫外-可见光(UV-vis)、色差仪和热重分析(TG)分别表征了此复合材料形貌、相结构、紫外光吸收、光响应和热稳定性能,并进一步探讨了此复合材料的疏水功能。SEM表明WO_3纳米片均匀的生长在木材表面;XRD表明WO_3具有六方晶相结构;UV-vis表明WO_3处理后的木材与素材相比,其最大吸收波长出现蓝移;光响应测试表明,WO_3/木材在紫外光照射下具有明显的变色功能;TG表明WO_3涂层对木材成分降解起到一定的抑制作用。此外,经过十八烷基三氯硅烷改良后,此复合材料具有超疏水功能。
Ethanol was used as an inducer, and inorganic WO_3 nanosheets were in situ grown on the surface of wood by simple low temperature hydrothermal synthesis, and the light response function of WO_3 / wood was discussed. The morphology, phase structure, UV absorption and photoresponse of the composites were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), UV-vis, And thermal stability, and further explore the hydrophobic function of the composite. SEM showed that WO_3 nanosheets grew uniformly on the surface of wood; XRD showed that WO_3 had a hexagonal phase structure; UV-vis showed that the maximum absorption wavelength of WO_3 treated wood was blue shifted compared with the material; Wood under UV irradiation has obvious discoloration function; TG shows that WO_3 coating on the degradation of wood components play a role in inhibition. In addition, after the octadecyl trichlorosilane modified, the composite has superhydrophobic function.