摘要
Phase-pure t-NdVO_4 nanocrystals with different shapes have been synthesized by facile and repeatable hydrothermal methods. The as-synthesized t-NdVO_4 nanoparticles were characterized by various techniques of X-ray diffraction（XRD）. scanning electron microscope（SEM） and transmission electron microscope（TEM）. The growth process and assembly behavior of t-NdVO_4 nanorod arrays were investigated. The results show that the morphology of t-NdV04 nanocrystals is greatly related to the pH value of precursor solution and that strong basic solution is not in favor of the formation of t-NdVO_4 nanoparticles. Due to the strong adhesive action and stabilization of OH^-ions to some crystal faces of NdVO_4, neodymium vanadate crystallite grows into oriented short nanorods and then into nanorod arrays. The shape, crystalline and dimension of NdVO_4 nanocrystals can be effectively governed in our work.
Phase-pure t-NdVO_4 nanocrystals with different shapes have been synthesized by facile and repeatable hydrothermal methods. The as-synthesized t-NdVO_4 nanoparticles were characterized by various techniques of X-ray diffraction（XRD）. scanning electron microscope（SEM） and transmission electron microscope（TEM）. The growth process and assembly behavior of t-NdVO_4 nanorod arrays were investigated. The results show that the morphology of t-NdV04 nanocrystals is greatly related to the pH value of precursor solution and that strong basic solution is not in favor of the formation of t-NdVO_4 nanoparticles. Due to the strong adhesive action and stabilization of OH^-ions to some crystal faces of NdVO_4, neodymium vanadate crystallite grows into oriented short nanorods and then into nanorod arrays. The shape, crystalline and dimension of NdVO_4 nanocrystals can be effectively governed in our work.
基金
Project supported by the National Natural Science Foundation(NSF)of China(51202066)
the New Century Excellent Talents supported by the China Education Ministry(NCET-13-0784)
the Hunan Province graduate Research and Innovation Project(grants CX2016B540)
the Undergraduate Research and Innovation Program of Hunan University of Science and Technology(SYZ2016050)
the Scientific Research Fund of Hunan Provincial Education Department(12A047)
the Research Project of Science and Technology Department of Hunan Province(2013SK3162)
the State Key Laboratory Program of Rare Earth Resource Utilization of China(RERU2013019)
the State Key Laboratory Programs of Inorganic Synthesis and Preparative Chemistry of China(2013-26)
the Key Laboratory Program of Ecological Impacts of Hydraulic-projects and Restoration of Aquatic Ecosystem in Ministry of Water Resources of China(2013001)
