Synthesis of Nanocrystalline of Lanthanum Doped NaTaO3 and Photocatalytic Activity for Hydrogen Production


  • Husni Husin Department of Chemical Engineering, Syiah Kuala University
  • Komala Pontas Graduate Study of Chemical Engineering, Syiah Kuala University
  • Yuliana Sy Department of Chemical Engineering, Syiah Kuala University
  • S. Syawaliah Department of Chemical Engineering, Syiah Kuala University
  • S. Saisa Graduate Study of Chemical Engineering, Syiah Kuala University



Sodium tantalum oxide doping lanthanum (La-NaTaO3) compounds were successfully synthesized by a sol-gel method and calcined at different temperatures. Tantalum chloride (TaCl5) was used as starting material and lanthanum nitrate (La(NO3)3.6H2O) as lanthanum source. X-ray diffraction (XRD) revealed that the calcination temperature strongly influenced the crystallinity of the prepared samples.The crystallite sizes of the resultant La-NaTaO3were in the range of 27-46 nm. The photocatalytic activities of the samples were examined for hydrogen production from an aqueous methanol solution under UV light irradiation. It was found that the photocatalytic activity of the La-NaTaO3 depended strongly on the calcination temperature. The range of calcination temperatures were 500, 700, and 900C. The La-NaTaO3 sample calcined at 900C showed the highest photocatalytic activity compared to the samplescalcined at the other temperatures. The rate of hydrogen production reached a value of 6.16 mmol h-1 g-1 catalyst.


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How to Cite

Husin, H., Pontas, K., Sy, Y., Syawaliah, S., & Saisa, S. (2014). Synthesis of Nanocrystalline of Lanthanum Doped NaTaO3 and Photocatalytic Activity for Hydrogen Production. Journal of Engineering and Technological Sciences, 46(3), 318-327.




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