Photocatalytic degradation of methylene blue with TiO2 nanoparticles prepared by a thermal decomposition process

Chemical Vapor Synthesis and Physico‐chemical Properties of V2O5 Nanoparticles

“…In particular, the synthesis temperature is an important factor determining the resulting particle size, crystallinity, and phase. [15] Figures 2 a to e present transmission electron microscopy (TEM) images of the V 2 O 5 samples produced by CVC at various synthesis temperatures. Figures 2a and b indicate that the samples prepared at 500 and 700 8C have an amorphous structure.…”

“…The particle morphology, crystalline phase, and surface chemistry of thermally decomposed particles can be controlled by regulating the precursor composition, reaction temperature, pressure, solvent property, and aging time. [15,16] In a typical CVC process, the precursor solution is atomized into an aerosol reactor (electric furnace) where droplets undergo solvent evaporation and solute precipitation within the droplets, which are then dried. In a typical thermal decomposition process, the precursor solution was atomized into an aerosol reactor, where droplets underwent solvent evaporation and solute precipitation within the droplets, which were then dried, followed by thermolysis of the precipitates at higher temperatures, and finally sintering to form the final particles.…”

“…[15,17] In this study, V 2 O 5 nanoparticles were obtained by the thermal decomposition of a vanadium oxytriethoxide (VOTE) solution. The detailed microstructural characteristics of the thermally decomposed nanoparticles were examined as a function of the synthesis temperatures (500-1300 8C).…”

“…In a typical thermal decomposition process, the precursor solution was atomized into an aerosol reactor, where droplets underwent solvent evaporation and solute precipitation within the droplets, which were then dried, followed by thermolysis of the precipitates at higher temperatures, and finally sintering to form the final particles. [15] In the CVC process, the synthesis temperature is one of the most important factors for determining the particle morphology, such as the crystal phase, size, specific surface area, surface composition, and chemical state. [15,17] In this study, V 2 O 5 nanoparticles were obtained by the thermal decomposition of a vanadium oxytriethoxide (VOTE) solution.…”

Quantitative Evaluation on Photocatalytic Activity of Anatase TiO2Nanocrystals in Aqueous Solution

“…TiO 2 is a chemically stable oxide material under ambient condition with a bandgap of about 3 eV which can absorb UV light and induce fascinating photocatalytic processes [1][2][3][4] such as photooxidation of organic dyes [5][6][7][8][9] and water splitting [10][11][12][13][14] via photoexcited charge carriers [12,15,16]. This has initiated numerous researches on size and shapecontrolled TiO 2 nanocrystals [17][18][19][20][21][22][23][24][25][26][27] and nanostructures [28][29][30][31][32][33][34].…”