2018
DOI: 10.3390/nano8050276
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Enhanced Photocatalytic Activity of {110}-Faceted TiO2 Rutile Nanorods in the Photodegradation of Hazardous Pharmaceuticals

Abstract: Rutile TiO2 with highly active facets has attracted much attention owing to its enhanced activity during the photocatalytic degradation of pollutants such as pharmaceuticals in wastewater. However, it is difficult to obtain by controlling the synthetic conditions. This paper reports a simple hydrothermal synthesis of rutile TiO2 nanorods with highly exposed {110} facets. The obtained rutile was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), high-resolution transmission electron m… Show more

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Cited by 29 publications
(12 citation statements)
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References 43 publications
(46 reference statements)
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“…A nanorod with a diameter of about 300 nm is shown in Figure 11 d and it has a complete rectangular structure, which is in good agreement with the SEM images. Regular lattice fringes can be seen clearly in the HRTEM image ( Figure 11 e) and the d -spacing of the crystallographic planes is 0.319 nm, which is consistent with (110) [ 32 ] crystallographic planes of TiO 2 ( Figure 11 d). The lattice fringes are parallel to the axial direction of the nanorods, indicating that the nanorods grew along the (110) plane, which is promoted by strong acid conditions and selective adsorption of Cl − .…”
Section: Resultssupporting
confidence: 76%
“…A nanorod with a diameter of about 300 nm is shown in Figure 11 d and it has a complete rectangular structure, which is in good agreement with the SEM images. Regular lattice fringes can be seen clearly in the HRTEM image ( Figure 11 e) and the d -spacing of the crystallographic planes is 0.319 nm, which is consistent with (110) [ 32 ] crystallographic planes of TiO 2 ( Figure 11 d). The lattice fringes are parallel to the axial direction of the nanorods, indicating that the nanorods grew along the (110) plane, which is promoted by strong acid conditions and selective adsorption of Cl − .…”
Section: Resultssupporting
confidence: 76%
“…[39] The hydroxyl group density (OH nm À 2 ) based on thermogravimetric analysis (TGA) weight loss ( Figure S4, Supporting Information) of SGH-TiO 2 and P25 is calculated to be 9 and 7 OH nm À 2 , respectively. The results obtained are comparable with the literature-reported OH group density of P25 (8 OH nm À 2 , [40] 5.3 OH nm À 2 [41] ) and sol-gelprepared titania (10.2 OH nm À 2 , [42] 8.7 OH nm À 2 , [43] and 11.9 OH nm À 2 [44] ).…”
Section: Characterizationsupporting
confidence: 90%
“…TiO 2 nanorods can be synthesized through various physical and chemical methods. Hydrothermal crystal growth is preferred for synthesizing free-standing TiO 2 nanorod arrays because this method enables large-area crystal growth, facile process parameter control, and the use of flexible substrate materials [ 7 , 8 , 9 ]. ZnO crystals, such as nanosheets or nanoplates, are promising components for photoexcited nanodevices [ 10 , 11 , 12 ].…”
Section: Introductionmentioning
confidence: 99%