Hydrothermal Synthesis Of Titanate Nanostructures As A High Surface Area Adsorbent

Mohd Hasmizam Razali*, Nur Arifah Ismail, Khairul Anuar Mat Amin

Advanced Nanomaterials Research Group, Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, 21030 Kuala Nerus, Terengganu, (MALAYSIA)

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ABSTRACT – DOI : https://dx.doi.org/10.47204/EMSR.1.1.2020.030-038

In this research, titanate nanostructures were prepared via a simply hydrothermal method with different hydrothermal temperature which are 100, 150, 200, 250 °C for 24 hours. Commercial TiO₂ powder (merck) was used as a precursor and the synthesized samples were characterized using FT-IR, XRD, FESEM, nitrogen gas adsorption and TG analyses. The results revealed that the structure, texture and morphology of samples strongly depend on the temperature of hydrothermal treatment. Hydrogen trititanate nanofibrous was produced at 150 °C, meanwhile, sodium trititanate nanorods were obtained at 200 and 250 °C. At low hydrothermal treatment (100 °C), no reaction was happening. The diameter of nanofibrous and nanorods were found to be (25-30) nm and (250-300) nm, respectively. Hydrogen trititanate nanofibrous possessed the highest surface area due to their small elongated fiber structures thus offers a great potential as adsorbent.