Synthesis of Nanocrystalline LaFeO3 by precipitation and its Visible-Light Photocatalytic Activity

摘要：

　　The LaFeO3 nanoparticle was synthesized using Fe(NO3)3 and ta(NO3)3 as starting materials by homogeneous precipitation method.The as-prepared LaFeO3 product was characterized by powder X-ray diffraction (XRD),scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy (DRS).XRD and SEM demonstrate the successful synthesis of single phase perovskite LaFeO3 and with 60-80 nm particle size.It was found that the as-prepared LaFeO3 shows strong visible-light absorption with absorption onset of 532 nm,indicating a narrow optical band gap of 2.33 eV.Furthermore,the as-prepared LaFeO3 shows high visible-light photocatalytic activity for decomposition of methylene blue in comparison with the commercial Degussa P25.

关键词： LaFeO3 photocatalysis nanomaterials precipitation

作者: Peisong Tang Mengbi Fu Haifeng Chen Feng Cao

作者单位: Department of Chemistry,Huzhou Teachers College,Huzhou 313000,P.R.China Department of Metallurgy,Kunming University of Science and Technology,Kunming 650093,P.R.China

会议类型: 国际会议

会议名称: the international conference on Frontier of Nanoscience and Technology (2011纳米科学与技术国际会议(ICFNST 2011))

会议地点: 大理

会议语种:英文

页码: 150-154

在线出版日期: 2011-08-18（万方平台首次上网日期，不代表论文的发表时间）