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Preparation and Characterization of Titanium-Based Photocatalysts

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Photo-catalytic Control Technologies of Flue Gas Pollutants

Part of the book series: Energy and Environment Research in China ((EERC))

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Abstract

We prepared a series of mole percentage of modified titanium dioxide materials. The crystalline phases of as-prepared nanocomposites were characterized by using the X-ray diffraction (XRD) of Cu Kα radiation (BRUKER D8 ADVANCE Diffractometer, Germany), in which the scanning angle range begins from 10° to 90° (the scanning rate is 2°min−1). In order to further identify the element composition, the AIK alpha X ray (HM = 1486.6 eV) radiation operated under 250 W (PHI5300, USA) was used to carry out the X ray photoelectron spectroscopy (XPS) analysis. In order to observe the surface structure and morphology , scanning electron microscope (SEM, Phillips XL-30 FEG/NEW) was used. Transmission electron microscopy (TEM, Philips Model CM200) confirmed the shape and microstructure. The crystal structures of the prepared samples were characterized by high resolution TEM (HRTEM) . Energy dispersive X ray spectroscopy (EDS) was used to confirm the composition of the samples. According to the Brunauer-Emmett-Teller (BET) method (Micromeritics ASAP 2020), the error line of the specific surface area of the sample prepared from the N2 adsorption/desorption data is 1% of the measurement result. Fourier transform infrared (FTIR) spectra were obtained by using Nicolet Nexus spectrometer in the range of 4000–400 cm−1 using potassium bromide. The optical absorption properties of the samples prepared in 350–800 nm range were collected on UV-vis DRS (SHIMADZU UV-3600 Plus). BaSO4 is used as the reflectivity standard in UV-vis DRS experiment. Photoluminescence (PL) measurements of samples were carried out on SHIMADZU RF5301 (Japan), and data recorded in the range of 350–600 nm were recorded. The prepared samples were excited at 310 nm.

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Wu, J., Ren, J., Pan, W., Lu, P., Qi, Y. (2019). Preparation and Characterization of Titanium-Based Photocatalysts. In: Photo-catalytic Control Technologies of Flue Gas Pollutants. Energy and Environment Research in China. Springer, Singapore. https://doi.org/10.1007/978-981-10-8750-9_2

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  • DOI: https://doi.org/10.1007/978-981-10-8750-9_2

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