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HIGH PHOTOCATALYTIC ACITIVITY OF MESOPOROUS TiO2 AND VISIBLE LINGT PHOTOCATALYST WITH HYDROTHERAMAL TREATMENT AND METHODE OF MANUFACTURING THEREOF
HIGH PHOTOCATALYTIC ACITIVITY OF MESOPOROUS TiO2 AND VISIBLE LINGT PHOTOCATALYST WITH HYDROTHERAMAL TREATMENT AND METHODE OF MANUFACTURING THEREOF
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机译：经水热处理的介孔TiO2和可见光催化剂的高光催化活性及其制备方法
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摘要
A method is provided to mass-produce materials with excellent thermal stabilities even at high temperatures due to their superior crystallinities through a hydrothermal reaction in an inexpensive and environmentally friendly manner after preparing mesoporous TiO2 in a solid form using pure water as a solvent, and materials having high optical activities in ultraviolet region as well as visible light region by doping pores with transition metals such as Cr, Fe, V, Ag and the like are provided. A method of preparing mesoporous TiO2 comprises: a surfactant dissolving step of injecting 3 to 5 weight parts of Pluronic P123 that is a neutral surfactant represented by the formula (PEO)20(PPO)70(PEO)20 into 100 weight parts of water to dissolve the surfactant into water; a sulfuric acid adding step of adding 1 to 2 weight parts of sulfuric acid into a solution prepared by the surfactant dissolving step with respect to 100 weight parts of water; and a titanium precursor stirring step of stirring a precursor titanium isopropoxide represented by the formula Ti(OCH(CH3)CH2CH3)4 and 2,4-pentanedione represented by the formula CH3COCH2COCH3 with the solution prepared by the surfactant dissolving step, wherein the Pluronic P123 that is a neutral surfactant represented by the formula (PEO)20(PPO)70(PEO)20 and the precursor titanium isopropoxide represented by the formula Ti(OCH(CH3)CH2CH3)4 are added in a mole ratio of 1:40 to 80, and the precursor titanium isopropoxide represented by the formula Ti(OCH(CH3)CH2CH3)4 and the 2,4-pentanedione represented by the formula CH3COCH2COCH3 are added in a mole ratio of 1:1 to 10.
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