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Synthesis of TiO 2 on different substrates by chemical vapor deposition for photocatalytic reduction of Cr(VI) in water
Author(s) -
Le Minh Thang,
Nguyen Hong Lien,
Vu AnhTuan,
Nguyen Van Chuc,
Wu Jeffrey C. S.
Publication year - 2019
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.201800492
Subject(s) - photocatalysis , x ray photoelectron spectroscopy , catalysis , chemistry , scanning electron microscope , chemical vapor deposition , carbon fibers , chemical engineering , fiber , nuclear chemistry , materials science , composite material , organic chemistry , composite number , engineering
TiO 2 loaded on several substrates such as carbon fiber, aluminum plate, silica plate, and glass plate was prepared using the chemical vapor deposition (CVD) method for the photocatalytic reduction of Cr(VI) in water with the presence of ethanol under Ultraviolet (UV) illumination. As‐prepared samples were characterized by X‐Ray Diffraction (XRD), X‐ray photoelectron spectroscopy (XPS), Brunauer–Emmett–Teller (BET), and scanning electron microscopy (SEM). The catalyst with TiO 2 loaded on carbon fiber possessed an extremely large surface area (1,463,91 m 2 /g), while the other catalysts possessed small surface areas (0.05–0.21 m 2 /g). The photocatalytic activity of TiO 2 loaded on carbon fiber, which was determined by the conversion of Cr(VI) and the degradation of chemical oxygen demand (COD), was much higher than that of other catalysts. The reusability of TiO 2 loaded on carbon fiber catalyst exhibited almost the same activity as the fresh catalyst. The results indicated that TiO 2 loaded on carbon fiber is feasible for practical application.