2017
DOI: 10.1111/jace.14667
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Bi2O3 nanoparticles incorporated porous TiO2 films as an effective pn junction with enhanced photocatalytic activity

Abstract: Porous TiO 2 films decorated with Bi 2 O 3 nanoparticles are fabricated via alkalihydrothermal of titanium (Ti) plate by varying the reaction time. The amorphous TiO 2 is transformed into anatase after annealing the films at 500°C in air. The p-type Bi 2 O 3 nanoparticles are successfully assembled on the surface of porous n-type TiO 2 films through the ultrasonic-assisted successive ionic layer adsorption and reaction (SILAR) technique to form Bi 2 O 3 /TiO 2 nanostructure by the two cycles. The obtained Bi 2… Show more

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Cited by 42 publications
(25 citation statements)
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“…The higher the concentration of Bi 2 O 3 precursor, the larger the red-shift extent, indicating the corresponding higher content of final formed Bi 2 O 3 nanoparticles in the Bi 2 O 3 sensitized TiO 2 sample. This also indicates the successful sensitization of TiO 2 by Bi 2 O 3 [25]. …”
Section: Resultsmentioning
confidence: 93%
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“…The higher the concentration of Bi 2 O 3 precursor, the larger the red-shift extent, indicating the corresponding higher content of final formed Bi 2 O 3 nanoparticles in the Bi 2 O 3 sensitized TiO 2 sample. This also indicates the successful sensitization of TiO 2 by Bi 2 O 3 [25]. …”
Section: Resultsmentioning
confidence: 93%
“…Two peaks at 529.7 and 531.4 eV can be noticed by Gaussian fitting. The former can be indexed to the O of TiO 2 ; the latter most likely results from Bi 2 O 3 , which may also be correlated to OH species from chemical absorption or absorbed water [25]. The lower binding energy of Bi–O is owing to the less negative changes of the covalent O of Bi 2 O 3 as compared to that of the O of Ti–O [33].…”
Section: Resultsmentioning
confidence: 99%
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“…Therefore, titanium is widely used in the fields of aerospace, chemical industries, biomaterials, civil engineering, and eyeglass frames. [8][9][10][11][12] It is because titanium thermodynamically forms only octahedral-rutile-TiO 2 on the surface by a simple oxidation in air according to the changes in the Gibb's free energy of oxidation in the entire temperature region, while chemical synthesis using precursors can easily produce tetrahedral-anatase-TiO 2 at 600°C or less ( Figure 1). [1][2][3][4][5][6][7] This is because of its advantage compared to anatase TiO 2 particles.…”
Section: Introductionmentioning
confidence: 99%
“…Bismuth‐based semiconductor materials are widely recognized as visible‐light‐driven photocatalysts due to their good photochemical response to visible light . Among them, the bismuth molybdate family, including several phases in the Bi–Mo–O system, have been evaluated for environmental purification and remediation .…”
Section: Introductionmentioning
confidence: 99%