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采用溶胶-凝胶法常温制备掺铁纳米TiO2溶胶,分析掺铁纳米TiO2溶胶的光催化特性,并采用该溶胶对竹炭进行复合改性,阐明掺铁溶胶改性对竹炭的光催化特性及结构特征的影响机制。结果表明:掺铁纳米TiO2溶胶平均粒度在20nm,为锐钛矿晶型,具有优越的紫外光催化性能及可见光响应能力;掺铁溶胶改性竹炭后,TiO2颗粒主要富集在竹炭表面,赋予竹炭光催化性能,为竹炭长效去除污染、净化空气等功能的开发奠定基础。
The sol-gel method was used to prepare the iron-doped nano-TiO2 sol at room temperature. The photocatalytic properties of the iron-doped nano-TiO2 sol were analyzed. The photocatalytic properties and structure of the bamboo charcoal Characteristics of the mechanism of influence. The results show that the average particle size of the iron-doped nano-TiO2 sol is 20 nm and anatase crystal form, which has excellent ultraviolet photocatalytic performance and visible light response ability. After iron-doped sol modified carbon, the TiO2 particles are mainly concentrated on the surface of the charcoal, The photocatalytic performance of bamboo charcoal lays the foundation for the long-term decontamination of bamboo charcoal and the purification of air.