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Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Bài báo - Tạp chí
3 (2017) Trang: 108-112
Tạp chí: International Journal of Scientific Engineering and Technology

In this work, SiO2/TiO2 nanocomposites have been successfully synthesized hydrothermal with rapid reaction time under supporting of microwave at power of 150 W, for 1 h using SiO2 from rice husk ash (RHA) as silica source in Vietnam. The SiO2/TiO2 nanocomposites were characterized by UV–vis spectroscopy, scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), fourier transforminfrared spectroscopy (FTIR), and X-ray diffraction (XRD). It was also demonstrated that the SiO2/TiO2 nanocomposites were extremely good catalytic activity and high stability. Our results show that SiO2/TiO2 nanocomposites were obtained with particle sizes in range from 10-30 nm and highly pure formed in 1 h. Moreover, the SiO2/TiO2 nanocomposites’ stability increased to more than 24 h for investigating their catalytic activity in the saltwater medium with highly treatment efficiency respective about 66.4% and 75.2% under the lighting conditions of the sunlight and the UV-light in 3 h for comparisons.

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