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采用模板法与溶胶-凝胶法结合,以脱脂棉为模板制备了掺杂Fe3+的TiO2微米带光催化材料.并利用红外光谱(FTIR)、扫描电镜(SEM)、透射电镜(TEM)、X射线衍射(XRD)对掺杂不同比例Fe3+产物的表面形貌及晶型进行了表征.以甲基橙的脱色降解为模式反应,考察了样品的光催化性能.结果表明:以脱脂棉为模板在酸性条件下制备出了宽度5～8μm,厚度约100～500nm的TiO2带状体,此条件下生成的纳米TiO2晶体晶粒直径大小10～30nm,长度100～500nm,呈棒状.且得出当Fe3+掺杂量为0.04%时光催化效果最优,20min对甲基橙的催化效率为91%.
The Fe3 + -doped TiO 2 microstrip photocatalytic materials were prepared by using the template method and the sol-gel method with the help of cotton wool as a template. FTIR, SEM, TEM, The morphology and crystal structure of Fe3 + -doped products with different proportions were characterized by X-ray diffraction (XRD). The photocatalytic properties of the sample were investigated by decoloration and degradation of methyl orange. The results showed that with the absorbent cotton as a template, Under the conditions of preparation of a width of 5 ~ 8μm, a thickness of about 100 ~ 500nm TiO2 ribbons, under the conditions of the resulting nano-TiO2 crystal grain size of 10 ~ 30nm, a length of 100 ~ 500nm, was rod- The best photocatalytic activity was obtained at 0.04% doping level, and the catalytic efficiency of methyl orange at 20 min was 91%.