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Título del libro: Photocatalytic Semiconductors: Synthesis, Characterization, And Environmental Applications
Título del capítulo: Physicochemical characterization of photocatalytic materials

Autores UNAM:
MONSERRAT BIZARRO SORDO; SANDRA ELIZABETH RODIL POSADA;

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Autores externos:

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Idioma:
Inglés

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Año de publicación:
2015

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Palabras clave:

Characterization; Chemical analysis; Dynamic light scattering; Electron energy loss spectroscopy; Electron microscopy; Electron spectroscopy; Electronic properties; Electrons; Emission spectroscopy; Energy dissipation; Fourier transform infrared spectroscopy; Gas adsorption; High resolution transmission electron microscopy; Optical emission spectroscopy; Optical properties; Particle size; Particle size analysis; Photocatalysis; Photoluminescence spectroscopy; Porosity; Raman spectroscopy; Rutherford backscattering spectroscopy; Scanning electron microscopy; Spectroscopic ellipsometry; Transmission electron microscopy; X ray diffraction; X ray photoelectron spectroscopy; Characterization techniques; Diffuse reflectance spectroscopy; Heterogeneous photocatalysis; Photocatalytic activities; Photocatalytic materials; Physico-chemical characterization; Surface characteristics; X ray emission spectroscopy; Auger electron spectroscopy

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Resumen:

A wide range of analytical techniques has been employed to obtain the physical?chemical properties of photocatalytic semiconductors prepared as powders or thin films. The photocatalytic activity of a semiconductor material depends on both surface and structural properties. For bulk materials, the composition, crystalline structure, and electronic properties of the materials are intrinsically correlated; however, surface characteristic such as surface area, particle size distribution, and porosity can be independently modified. On the other hand, for nanomaterials, the size becomes an important feature affecting the physical properties, such as the optical band gap. Moreover, the particle size is of primary importance in heterogeneous photocatalysis, because it is directly related to the efficiency of a catalyst through the enhancement of its specific surface area. The techniques described in this chapter were divided into five major topics: elemental composition, structure and topography, surface area and porosity, and vibrational and optical properties. The most common techniques are briefly described giving some examples about their use for the analysis of a photocatalytic material. © Springer International Publishing Switzerland 2015.

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Entidades citadas de la UNAM:

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Fuente:


ISBN:
9783319109992
Editorial:
Springer International Publishing Nombre de la publicación:
Physicochemical characterization of photocatalytic materials
Página inicial:
103
Página final:
153

Tipo de producto:
Capítulo de un Libro

DOI:
10.1007/978-3-319-10999-2_4