Nanostructured Photocatalysts: Advanced Functional Materials by Hiromi Yamashita, Hexing Li

By Hiromi Yamashita, Hexing Li

While books on semiconductor TiO2 photocatalysis are legion, nanostructured managed photocatalysts are appealing past regular semiconductors, and this e-book is dedicated to the numerous novel makes use of of complex TiO2 and MOF-based photocatalysts. info on synthesis, characterization, and response purposes of nanostructured photocatalysts are summarized. different new fabrics mentioned during this ebook are Bi- W- oxides, steel complexes, and certain porous fabrics. This publication includes equipment of practise and characterization of designated nanostructured photocatalysts, and information about their catalytic motion. individuals to this quantity are major Asian researchers in Photocatalysis. it's going to attract researchers wishing to grasp the best way to layout new forms of photocatalysts with managed nanostructures.

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58] with permission of John Wiley & Sons, Inc. (b) Schematic diagram of the procedures for the preparation of Gn-TiO2/MCM-41. Reprinted with permission from Ref. [60]. 3 Sol–gel Method Sol–gel is an advanced technology, which usually employs the compounds with high activity as the precursors. These raw materials are mixed in the liquid phase, and then the hydrolysis, and condensation reaction are occurring in the solution to form a stable system of transparent sol. After aging, colloidal particles in the sol aggregate slowly and form a three-dimensional network structure of the gel.

3. , sodium dodecyl sulfate) was dispersed on the graphene sheets and the titanium sources and solvents were mixed with the solution to obtain a sol after the stirring. And then the nucleation and condensation procedure resulted into the in situ crystallization of metal oxide precursors to produce the desired oxide phase and morphology. Lambert et al. [63] reported the TiO2-GO materials prepared via the hydrolysis of TiF4 at 60 °C for 24 h in the presence of an aqueous dispersion of GO. The reaction proceeded to yield an insoluble material that was composed of TiO2 and GO.

Size = 36 (± 27) nm 0 50 100 150 200 Size (nm) Fig. 7 Tapping-mode AFM images (top) and the height cross-sectional profiles (middle) of (a) LGO, (b) NGO-100, (c) NGO-200, and (d) NGO-300. The size distribution histograms (bottom) were obtained by counting (frequency) from the AFM images. The average sizes of LGO, NGO100, NGO-200, and NGO-300 are 520 (±480), 164 (±128), 59 (±47), and 36 (±27) nm, respectively Reprinted with permission from Ref. [66]. 2 Characterization for the Reduction of Graphene Oxides Graphene is acknowledged as an ideal conductor which determines the transfer of photogenerated electrons from semiconductors to the graphene.

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