Template-free synthesis of BiVO4 nanostructures: I. Nanotubes with hexagonal cross sections by oriented attachment and their photocatalytic property for water splitting under visible light
National Natural Science Foundation of China [90510012]; National Basic Research Program of China [2009CB939704]; Program of Introducing Talents of Discipline to Universities [B08033]
机构署名：
本校为第一且通讯机构
院系归属：
物理科学与技术学院
化学学院
摘要：
Monoclinic structured BiVO4 nanotubes have been selectively prepared by a template-free and surfactant-free solvothermal process in an ethanol-H2O mixed solvent. Interestingly, the nanotubes obtained at Vethanol:Vwater = 3:1 have hexagonal cross sections with long lengths of approx. 1.2 νm, side lengths of approx. 200 nm and wall thicknesses of approx. 30 nm. A possible oriented attachment growth mechanism has been proposed based on the results of time-dependent experiments. Nanoplates were firstly formed by aggregation of primary nanocrystallites and then self-assembly converted to hexagon...
