Synthesis and Raman properties of magnesium borate micro/nanorods

With cetyltrimethylammonium bromide (CTAB) as a soft template, magnesium borate (Mg2B2O5) one-dimensional micro/nanorods were synthesized. The products prepared in the absence of CTAB were Mg2B2O5 nanoparticals and needles. However, using CTAB as a soft template the products were Mg2B2O5 whiskers (diameter: 200 ± 10 nm, length: 1–2 μm). The formation mechanism was discussed. In addition, the experimental and theoretical Raman spectra of Mg2B2O5 were reported for the first time, and the possible vibrations modes of Mg2B2O5 crystals were assigned based on the calculation results.

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► With CTAB as a soft template Mg2B2O5 micro/nanorods are successfully synthesized.
► The concentration of CTAB and NaBH4 greatly affect the size of the final products.
► The Raman properties of the Mg2B2O5 crystalline are studied for the first time.
► The possible vibrations modes in Mg2B2O5 are assigned based on the calculation results.