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Ag-TiO(B)/g-CN ternary heterojunctions photocatalysts are fabricated by hydrothermal-calcination, photo-deposition procedure, and followed by in-situ solid-state chemical reduction procedure. As-obtained photocatalysts are consisted with heterojunctions between 2D g-CN sheets and 1D TiO(B) single-crystalline nanorods. The band gap of Ag-TiO(B)/g-CN ternary heterojunctions photocatalysts is reduced to ∼2.23 eV due to plasma Ag and surface engineering. Under visible light irradiation, it has an optimal photocatalytic property for the reduction of Cr (95%) and degradation of NH (93%). The apparent reaction rate constants (k) of ternary heterojunctions photocatalysts for NH and Cr are 25 and 12 folds higher than that of original TiO(B). Furthermore, Ag-TiO(B)/g-CN also has excellent hydrogen production efficiency, which is up to 410 µmol h g. This enhancement can be attributed to the unique heterojunction formed by 1D single-crystalline TiO(B) nanorods and 2D g-CN sheets, surface plasma resonance effect of plasma Ag nanoparticle, and surface engineering. A possible photocatalytic mechanism is also proposed by analysizing the XPS valence-band spectra and the Mott-Schottky.
This article was published in the following journal.
Name: Journal of colloid and interface science
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The carbohydrate-rich zone on the cell surface. This zone can be visualized by a variety of stains as well as by its affinity for lectins. Although most of the carbohydrate is attached to intrinsic plasma membrane molecules, the glycocalyx usually also contains both glycoproteins and proteoglycans that have been secreted into the extracellular space and then adsorbed onto the cell surface. (Alberts et al., Molecular Biology of the Cell, 3d ed, p502)
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