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以磷钼酸铁为活性组分,茶花花粉为生物模板剂,采用生物模板法和溶胶-凝胶技术制备了具有微椭球结构的FePMo_(12)/SiO_2复合材料。采用SEM、XRD、N_2物理吸附等手段表征了FePMo_(12)/SiO_2的微观形貌和结构。结果表明:制备的FePMo_(12)/SiO_2复合材料保持了模板剂的微结构,且孔径分布较宽,使其具有较大的比表面积115.95 m~2/g。在模拟太阳光照射下,FePMo_(12)/SiO_2可以有效的应用于水中酸性大红3R(AR3R)的降解。在AR3R初始浓度为100 mg/L,溶液pH为3.0,催化剂的用量为0.3 g/L,反应75 min后,AR3R的降解率达到88.6%。FePMo_(12)/SiO_2光催化剂可重复使用,稳定性较好。
FePMo 12 / SiO 2 composites with micro-ellipsoid structure were prepared by bio-template method and sol-gel technique using ferrous phosphomolybdate as active component and camellia pollen as biological template. The microstructure and morphology of FePMo 12 / SiO 2 were characterized by SEM, XRD and N 2 physical adsorption. The results show that the prepared FePMo 12 / SiO 2 composite maintains the microstructure of the template and has a wide pore size distribution with a large specific surface area of 115.95 m 2 / g. Under simulated solar irradiation, FePMo 12 / SiO 2 can be effectively applied to the degradation of acid red 3R (AR3R) in water. The AR3R degradation rate reached 88.6% after the initial concentration of AR3R was 100 mg / L, the pH of the solution was 3.0 and the amount of catalyst was 0.3 g / L. FePMo_ (12) / SiO_2 photocatalyst can be reused, the stability is better.