Sr doped LaMnO3 nanoparticles prepared by microwave combustion method: A recyclable visible light photocatalyst

Results in Physics

Thi Huong Phi¹  Viet Tuyen Nguyen²  Van Quan Le²  Quoc Khoa Doan³  Trong Tam Nguyen³  Thi Ha Tran⁴  Nguyen Hai Pham⁵  Canh Viet Nguyen⁵  Khac Hieu Ho⁵  Hoang Nam Nguyen⁵ 

[1] Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam;The Faculty of Natural Sciences, Duy Tan University, Danang 550000, Vietnam;Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam;Laboratory of Advanced Materials Chemistry, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Vietnam;University of Science, Vietnam National University, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam;

关键词: Microwave combustion;    Sr doped LaMnO3;    Nanoparticles;    Photocatalyst;    Visible light;   

DOI  :  

来源: DOAJ

【 摘 要 】

Lanthanium manganite (LaMnO3) is an interesting perovskite material with many practical applications in various fields. In the present work, LaxSr1-xMnO3 (x = 0.2–0.4) nanopowder was prepared by a single step microwave combustion process without any post annealing requirements. The as-prepared nanoproducts were characterized with different measurements such as X-ray diffraction, scanning electron microscopy, diffuse reflectance, Raman scattering and magneto vibrating sample. The nanoproducts of high crystal quality showed small bandgap of about 2.2 eV, which is very useful for visible photocatalytic activity. The obtained nanoparticles also possess excellent photocatalyst activity in visible light, which is demonstrated by ability to degrade up to 96% of methylene blue 10 ppm after 120 min of irradiation with visible light. Sr doped LaMnO3 nanoparticles also exhibit superparamagnetic property with high magnetization of 57 emu/g, which opens recyclable ability in water treatment application of the synthesized nanopowder.

【 授权许可】

Unknown