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Photocatalytic Activity of Synthetic N‐doped TiO 2 /Reduced Graphene Oxide Crystalline Composites
Author(s) -
Chen Jianxin,
Wang Xinxin,
Li Yinhui,
Zhang Na,
Su Min,
Han Jian
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600671
Subject(s) - photocatalysis , graphene , materials science , oxide , composite material , hydrothermal circulation , doping , degradation (telecommunications) , irradiation , chemical engineering , catalysis , nanotechnology , chemistry , organic chemistry , metallurgy , telecommunications , physics , optoelectronics , computer science , nuclear physics , engineering
N‐doped TiO 2 /reduced graphene oxide (N‐TiO 2 /RGO) composites were prepared by a hydrothermal method. Characterization and photocatalytic tests showed that the N‐TiO 2 /RGO composites were more efficient for degrading effluents in comparison with the pure TiO 2 powders and the N‐doped TiO 2 powders. The photocatalytic performance of the composites was enhanced with the increase of the reduced graphene oxides' content, whose degradation rate constant was higher than that of N‐TiO 2 under simulated sunlight irradiation. After five successive cycles, 50 % N‐TiO 2 /RGO still exhibited high activity, which indicates that the composites are stable under irradiation. An innovative strategy for the exploration of advanced photocatalysts in wastewater treatment is provided.