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

被引：12
作者：
Husin, Husni [1 ,2 ]
Pontas, Komala [1 ,2 ]
Sy, Yuliana [1 ]
Syawaliah [1 ]
Saisa [2 ]
机构：
[1] Syiah Kuala Univ, Dept Chem Engn, Jalan Tgk Syeh Abdurrauh 7, Banda Aceh 23111, Indonesia
[2] Syiah Kuala Univ, Grad Study Chem Engn, Banda Aceh 23111, Indonesia
来源：
JOURNAL OF ENGINEERING AND TECHNOLOGICAL SCIENCES | 2014年 / 46卷 / 03期
关键词：
green energy; hydrogen; La-doped NaTaO3; photocatalyst; sol-gel;
D O I：
10.5614/j.eng.technol.sci.2014.46.3.6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
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).6H(2)O) 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-NaTaO3 were 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 900 degrees C. The La-NaTaO3 sample calcined at 900 degrees C showed the highest photocatalytic activity compared to the samples calcined at the other temperatures. The rate of hydrogen production reached a value of 6.16 mmol h(-1) g(-1) catalyst.
引用
收藏
页码：318 / 327
页数：10
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