Jump to main content
Jump to site search


Screw-Dislocation-Driven t-Ba2V2O7 Helical Meso/Nanosquares: SDBS-Assisted Microwave Irradiation Fabrication and Their Unique Magnetic Properties

Abstract

Triclinic (t-) Ba2V2O7 helical-like meso/nanosquares assembled from self-spiraling nanosheets have been controllabely synthesized by a high-efficiency microwave radiation-assisted surfactant process. The microstructure and morphologies of the as-prepared t-Ba2V2O7 products were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). The results show that the spirals of stacked nanosheets grow along the z-axis of microsquares, leading to the formation of the helical shape. Based on parallel experiments and theoretical analysis of t-Ba2V2O7 helical mesosquares at different reaction stages, the formation mechanism has been proposed to be a“self-assembly–dissolution-recrystallization–Ostwald-ripening” mechanism. The helical structures with uniform morphology and size may find promising applications in a variety of fields. The SDBS-assisted microwave irradiation method gives an easy path to the controllable fabrication of helical Ba2V2O7 meso/nanomaterials, which can be readily extended to the development of functional structures of other alkaline earth vanadates. Moreover, it is found that unique magnetic property can be obtained for the material at specific particle size and reaction time, which is directly corresponding to the growth mechanism.

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 20 Jan 2017, accepted on 11 May 2017 and first published on 12 May 2017


Article type: Paper
DOI: 10.1039/C7TC00330G
Citation: J. Mater. Chem. C, 2017, Accepted Manuscript
  •   Request permissions

    Screw-Dislocation-Driven t-Ba2V2O7 Helical Meso/Nanosquares: SDBS-Assisted Microwave Irradiation Fabrication and Their Unique Magnetic Properties

    Y. Sun, M. Chen, Z. Hu, C. Li, J. Wang and S. Chou, J. Mater. Chem. C, 2017, Accepted Manuscript , DOI: 10.1039/C7TC00330G

Search articles by author