Effect of magnetic field on the synthesis of well-aligned TiO2-5CB by sol-gel method

Authors

  • Nur Izzati Abu Bakar Universiti Teknologi Malaysia
  • Sheela Chandren Universiti Teknologi Malaysia
  • Nursyafreena Attan Universiti Teknologi Malaysia
  • Leaw Wai Loon Universiti Teknologi Malaysia
  • Hadi Nur Universiti Teknologi Malaysia

DOI:

https://doi.org/10.11113/mjfas.v13n4.889

Keywords:

magnetic field, well-aligned, titania, sol-gel, slow hydrolysis

Abstract

This paper describes the approach by using a magnetic field as a technique in order to synthesize well-aligned materials. The magnetic field technique could be a potential method because it has advantage that all of the materials could be aligned by magnetic field as long as they have magnetic anisotropy. The aim of this research is to explore the effects of magnetic field and magnetic line in the synthesis of well-aligned material, namely titania (TiO2).  The synthesis of well-aligned titania with liquid crystal as the structure-aligning agent is demonstrated under magnetic field in the presence of liquid crystal, 4′-pentyl-4-biphenylcarbonitrile (5CB), tetra-n-butyl orthotitanate (TBOT), 2-propanol and water. The mixture underwent slow hydrolysis and drying process under magnetic field (0.3 T) in ambient condition. The use of magnetic field and 5CB liquid crystal as the structure aligning agent has led to the successful formation of well-aligned TiO2-5CB via sol-gel method. When no magnetic field was applied, the TiO2-5CB obtained was spherical in shape and no alignment can be observed. This study demonstrated that magnetic field can play an important role in the synthesis of well-aligned TiO2-5CB.

Author Biographies

Nur Izzati Abu Bakar, Universiti Teknologi Malaysia

Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research

Sheela Chandren, Universiti Teknologi Malaysia

Department of Chemistry, Faculty of Science

Nursyafreena Attan, Universiti Teknologi Malaysia

Department of Chemistry, Faculty of Science

Leaw Wai Loon, Universiti Teknologi Malaysia

Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research

Hadi Nur, Universiti Teknologi Malaysia

Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research

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Published

26-12-2017