Self-assembly synthesis of LAPO4 hierarchical hollow spheres with enhanced photocatalytic

Self-assembly synthesis of LAPO4 hierarchical hollow spheres with enhanced photocatalytic CO2-reduction performance

Bao Pan;Yangen Zhou;Wenyue Su;Xuxu Wang

【期刊名称】《纳米研究（英文版）》 【年(卷),期】2017(010)002

【摘要】Urchin-like LaPO4 hollow spheres were successfully synthesized by a facile solution route using citric acid (CA) as a structure-directing agent.The size of the three-dimensional (3D) hollow spheres was tuned by changing the concentration of CA.The formation mechanism of the 3D LaPO4 hollow spheres was revealed by studying the time-dependent morphology

evolution

process.Importantly,compared

with

monodispersed one-dimensional (1D) LaPO4 nanorods,the 3D LaPO4 hollow spheres self-assembled from nanorods showed a 6.8-fold enhancement in photocatalytic activity for CO2 reduction,which is attributed to the synergistic effect of their hierarchical hollow structure,higher

light-harvesting

capacity,and

faster

electron

transfer.Our findings provide not only a simple,facile method for the synthesis of hierarchical hollow micro/nanoarchitectures but also an efficient route for enhancing the photocatalytic performance. 【总页数】12页(534-545) 【关键词】