采用静电纺丝法制得 La2CoFeO6竹节状中空纳米纤维光催化材料。La2CoFeO6纳米纤维具有稳定的一维结构,由菱形晶型的La2CoFeO6纳米颗粒相互连接组成,并存在明显的竹节状中空结构,其比表面积可达98.7 m2/g。La2CoFeO6纳米纤维对自然光具有较高的利用率,其禁带宽度为1.6 eV。在甲基橙溶液浓度为10 mg/L, pH为2,催化剂用量为1.5 g/L条件下,自然光光照2 h后, La2CoFeO6纳米纤维对甲基橙的降解率可达96.9%。
La2CoFeO6 bamboo-like hollow nanofibers photocatalytic material was successfully prepared by elec-trostatic spinning. La2CoFeO6 nanofibers, which were connected to each other by rhombic La2CoFeO6 nanoparticles, had stable one-dimensional structure and clear bamboo-like hollow structure. The specific surface area of as-prepared inorganic nanofibers reached 98.7 m2/g. La2CoFeO6 nanofibers had a high utilization for natural light and its band gap was 1.6 eV. When concentration of methyl orange was 10 mg/Lwith pH of 2 and the dosage of La2CoFeO6 nanofibers was 1.5 g/L, methyl orange was degraded by La2CoFeO6 nanofibers within 2 h under natural light at 96.9%.
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