Nano Express

Nanoscale Research Letters

, Volume 4, Issue 7, pp 724-731

Open Access This content is freely available online to anyone, anywhere at any time.

Hydrothermal Formation of the Head-to-Head Coalesced Szaibelyite MgBO2(OH) Nanowires

  • Wancheng ZhuAffiliated withDepartment of Chemical Engineering, Tsinghua UniversityDepartment of Chemical Engineering, Qufu Normal University Email author 
  • , Xueyi ZhangAffiliated withDepartment of Chemical Engineering, Tsinghua University
  • , Lan XiangAffiliated withDepartment of Chemical Engineering, Tsinghua University Email author 
  • , Shenlin ZhuAffiliated withDepartment of Chemical Engineering, Tsinghua University

Abstract

The significant effect of the feeding mode on the morphology and size distribution of the hydrothermal synthesized MgBO2(OH) is investigated, which indicates that, slow dropping rate (0.5 drop s−1) and small droplet size (0.02 mL d−1) of the dropwise added NaOH solution are favorable for promoting the one-dimensional (1D) preferential growth and thus enlarging the aspect ratio of the 1D MgBO2(OH) nanostructures. The joint effect of the low concentration of the reactants and feeding mode on the hydrothermal product results in the head-to-head coalesced MgBO2(OH) nanowires with a length of 0.5–9.0 μm, a diameter of 20–70 nm, and an aspect ratio of 20–300 in absence of any capping reagents/surfactants or seeds.

Keywords

Nanowires Szaibelyite Magnesium borate hydroxide Mixing Hydrothermal