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• W3172351104 endingPage "124796" @default.
• W3172351104 startingPage "124796" @default.
• W3172351104 abstract "In the catalytic process of semiconductor, the rapid recombination of electron-holes greatly reduces the catalytic activity of the semiconductor catalyst. In this study, a low-defect reduced hydroxylated graphene (RGOH) was used as a carrier material to prepare TiO 2 /reduced hydroxylated graphene (T/RGOH) nanocomposite photocatalyst by one-step hydrothermal method. The nanocomposite photocatalysts were used to degrade methylene blue (MB). The degradation efficiency of MB catalyzed by T/RGOH nanocomposite photocatalyst was about 48.5% higher than that of the pure TiO 2 , and about 19.7% higher than that of the TiO 2 /reduced graphene oxide (T/RGO) nanocomposite photocatalyst. This was because the electrical conductivity of RGOH was much higher than that of RGO, which greatly improved the separation and migration efficiency of photogenerated electron-holes. At the same time, there might exist the Ti– O –C bond in the T/RGOH, which was advantageous to transfer photogenerated electrons through this bond to the RGOH flakes and prevented rapid recombination of photogenerated electron-holes. This study indicated that the preparation of catalyst nanocomposites using RGOH as carrier was an effective method to improve the catalytic performance of semiconductor catalysts. • The low-defect reduced hydroxylated graphene, whose conductivity was about 1000 times that of reduced graphene oxide. • The degradation efficiency of T/RGOH nanocomposite photocatalyst for MB is about 48.5% higher than that of pure TiO 2 . • The degradation efficiency of T/RGOH nanocomposite photocatalyst for MB is about 19.7% higher than that of pure T/RGO." @default.
• W3172351104 created "2021-06-22" @default.
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• W3172351104 date "2021-06-01" @default.
• W3172351104 modified "2023-10-02" @default.
• W3172351104 title "TiO2/reduced hydroxylated graphene nanocomposite photocatalysts: Improved electron–hole separation and migration" @default.
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• W3172351104 doi "https://doi.org/10.1016/j.matchemphys.2021.124796" @default.
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