Synthesis method of a rutile phase titanium dioxide photocatalyst containing bound electron oxygen vacancies
A rutile phase, titanium dioxide technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes and other directions, can solve the problems of high equipment cost and production cost, complex preparation process, constraints, etc., to achieve uniform size, Simple preparation process, good crystallinity effect
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Embodiment 1
[0026] Dissolve 0.2 g of polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer P123 and 2.3 g of titanium tetraisopropoxide TTIP in 0.7 mL of concentrated hydrochloric acid, 2.35 mL of isopropanol, and 0.15 mL of deionized After the mixed solution was evaporated in an evaporating dish at room temperature for 12 hours, it was transferred to a hydrothermal reaction kettle and crystallized at 180°C for 12 hours. After the reaction was completed, the crystallized product was suction-filtered and dried naturally to obtain the target product.
[0027] According to attached figure 1 In the X-ray (XRD) spectrum of titanium dioxide photocatalyst, it can be seen that the diffraction peaks belong to the crystal structure of rutile phase titanium dioxide (JCPDS card number: 21-1276).
Embodiment 2
[0029] Dissolve 0.2 g of polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer P123 and 2.3 g of titanium tetraisopropoxide TTIP in 0.7 mL of concentrated hydrochloric acid, 2.35 mL of isopropanol, and 0.15 mL of deionized Then the mixed solution was evaporated in an evaporating dish at room temperature for 24 hours, then transferred to a hydrothermal reaction kettle for crystallization at 180°C for 24 hours, after the reaction was completed, the crystallized product was suction filtered and dried naturally to obtain the target product.
[0030] According to attached figure 2 The scanning electron microscope (SEM) of the titanium dioxide photocatalyst shows that the morphology of the prepared sample is very regular nanorods, about 200-250nm in length.
Embodiment 3
[0032] Dissolve 0.2 g of polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer P123 and 2.3 g of titanium tetraisopropoxide TTIP in 0.7 mL of concentrated hydrochloric acid, 2.35 mL of isopropanol, and 0.15 mL of deionized After the mixed solution was evaporated in an evaporating dish at room temperature for 24 hours, it was transferred to a hydrothermal reaction kettle and crystallized at 180°C for 48 hours. After the reaction was completed, the crystallized product was suction-filtered and dried naturally to obtain the target product. product.
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