Synthesis and characterization of TiO<sub>2</sub> photocatalyst doped by transition metal ions (Fe<sup>3+</sup>, Cr<sup>3+</sup> and V<sup>5+</sup>)
Tuan Vu, Anh; Tuan Nguyen, Quoc; Linh Bui, Thi Hai; Cuong Tran, Manh; Phuong Dang, Tuyet; Hoa Tran, Thi Kim; Tuan Vu, Anh; Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam; Tuan Nguyen, Quoc; University of Da Lat, 01 Phu Dong Thien Vuong, Da Lat, Lam Dong, Vietnam; Linh Bui, Thi Hai; Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam; Cuong Tran, Manh; Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam; Phuong Dang, Tuyet; Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam; Hoa Tran, Thi Kim; Institute of Chemistry, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet Road, Cau Giay District, Hanoi, Vietnam
Журнал:
Advances in Natural Sciences: Nanoscience and Nanotechnology
Дата:
2010-03-01
Аннотация:
Nano TiO<sub>2</sub> was synthesized by the hydrothermal method. The sample was doped with transition metal ions (V, Cr and Fe) and non-metal (N). Doped TiO<sub>2</sub> samples were characterized by x-ray diffraction (XRD), field-emission scanning electron microscopy (FE-SEM) and UV-Vis diffuse reflectance spectroscopy (UV-Vis). Photocatalytic activity in the mineralization of xylene (vapor phase), methylene blue and active dyer PR (liquid phase) was tested. In comparison with non-doped TiO<sub>2</sub>, V-, Cr-, Fe-doped TiO<sub>2</sub> and N-doped TiO<sub>2</sub> samples exhibited much higher photocatalytic activity using visible light instead of UV.
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