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    • 4. 发明申请
    • ANATASE TYPE TiO2 NANORODS AND ITS PREPARATION METHOD
    • 分析型TiO2纳米粒及其制备方法
    • US20090291044A1
    • 2009-11-26
    • US12471854
    • 2009-05-26
    • Sang Il SeokIn Chan BaekJeong Ah Chang
    • Sang Il SeokIn Chan BaekJeong Ah Chang
    • C01G23/053C01G23/04
    • C01G23/0536B82Y30/00C01G23/04C01P2002/72C01P2004/04C01P2004/16H01G9/2031H01L31/0352Y02E10/542Y10S977/762
    • Provided is a process which includes slowly adding dropwise chilled distilled water to titanium tetrachloride to prepare solution of titanium oxychloride; adding basic solution thereto to maintain pH of the titanium oxychloride solution within a range from 3.5 to 4, thereby providing a suspension of titanium oxyhydroxide precipitate; adding basic solution thereto to adjust the suspension of titanium oxyhydroxide precipitate to be weakly basic, and heating and stirring the mixture at 80 to 100° C.; isolating and collecting dihydroxy-oxotitanium from the heated and stirred suspension of titanium oxyhydroxide precipitate, and washing it with weakly basic aqueous solution; and adding distilled water and 20 to 500 folds of hydrogen peroxide on the basis of 1 mole of Ti4+ in titanium oxyhydroxide to the washed titanium oxyhydroxide, and heat-treating the mixture at a temperature of 90 to 100° C. for 1 to 7 days to prepare titania nanorods having the mean length of 100 nm to 300 nm.
    • 提供了一种方法,其包括向四氯化钛中缓慢加入冷冻蒸馏水以制备氯氧化钛溶液; 向其中加入碱性溶液以将氯氧化钛溶液的pH保持在3.5至4的范围内,从而提供羟基氧化钛沉淀物的悬浮液; 加入碱性溶液以调节羟基氧化钛沉淀物的悬浮液为弱碱性,并在80至100℃下加热和搅拌该混合物。 从加热和搅拌的氢氧化正钛悬浮液中分离并收集二羟基 - 氧代钛,沉淀出来,用弱碱性水溶液洗涤; 并加入蒸馏水和20-500倍的过氧化氢,其基于1摩尔羟基氧化钛中的Ti 4+与洗涤过的羟基氢氧化钠,并在90至100℃的温度下热处理该混合物1至7天 制备平均长度为100nm至300nm的二氧化钛纳米棒。
    • 5. 发明授权
    • Anatase type TiO2 nanorods and their preparation method
    • 锐钛矿型TiO2纳米棒及其制备方法
    • US07887780B2
    • 2011-02-15
    • US12471854
    • 2009-05-26
    • Sang Il SeokIn Chan BaekJeong Ah Chang
    • Sang Il SeokIn Chan BaekJeong Ah Chang
    • C01G23/047H01L31/00
    • C01G23/0536B82Y30/00C01G23/04C01P2002/72C01P2004/04C01P2004/16H01G9/2031H01L31/0352Y02E10/542Y10S977/762
    • Provided is a process which includes slowly adding dropwise chilled distilled water to titanium tetrachloride to prepare solution of titanium oxychloride; adding basic solution thereto to maintain pH of the titanium oxychloride solution within a range from 3.5 to 4, thereby providing a suspension of titanium oxyhydroxide precipitate; adding basic solution thereto to adjust the suspension of titanium oxyhydroxide precipitate to be weakly basic, and heating and stirring the mixture at 80 to 100° C.; isolating and collecting dihydroxy-oxotitanium from the heated and stirred suspension of titanium oxyhydroxide precipitate, and washing it with weakly basic aqueous solution; and adding distilled water and 20 to 500 folds of hydrogen peroxide on the basis of 1 mole of Ti4+ in titanium oxyhydroxide to the washed titanium oxyhydroxide, and heat-treating the mixture at a temperature of 90 to 100° C. for 1 to 7 days to prepare titania nanorods having the mean length of 100 nm to 300 nm.
    • 提供了一种方法,其包括向四氯化钛中缓慢加入冷冻蒸馏水以制备氯氧化钛溶液; 向其中加入碱性溶液以将氯氧化钛溶液的pH保持在3.5至4的范围内,从而提供羟基氧化钛沉淀物的悬浮液; 加入碱性溶液以调节羟基氧化钛沉淀物的悬浮液为弱碱性,并在80至100℃下加热和搅拌该混合物。 从加热和搅拌的羟基氢氧化钛悬浮液中分离并收集二羟基 - 氧代钛,沉淀出来,用弱碱性水溶液洗涤; 并加入蒸馏水和20-500倍的过氧化氢,基于1摩尔羟基氧化钛中的Ti 4+与洗涤过的氢氧化羟基氢氧化钠,并在90至100℃的温度下热处理该混合物1至7天 制备平均长度为100nm至300nm的二氧化钛纳米棒。
    • 7. 发明授权
    • Process for preparing silica microcapsules
    • 制备二氧化硅微胶囊的方法
    • US06855335B2
    • 2005-02-15
    • US10679434
    • 2003-10-07
    • Sang Il SeokBok Yeop Ahn
    • Sang Il SeokBok Yeop Ahn
    • C08J3/12A61K9/32B01J13/02B32B5/16
    • B01J13/02Y10T428/2985Y10T428/2989Y10T428/2991Y10T428/2998
    • The present invention relates to a process for preparing silica microcapsules and more particularly, to a process for preparing silica microcapsules comprising the steps of dissolving tetraethyl orthosilicate (TEOS) into an aqueous solution containing a hydrolysis catalyst to control a degree of hydrolysis and contribute hydrophilicity or lipophilicity, adding a core material and an appropriate amount of aminopropyltrialkoxysilane(APS) as a gelling agent into the solution, and emulsifying and dispersing the resulting solution to a solution having a polarity opposite to that of the core material to microcapsulate by coating the core material with silica shell via a sol-gel reaction. The process for preparing microcapsules of the present invention reduces environmental pollution compared to conventional processes using an alkali gelling agent such as an ammonia solution, and are suitable for both organic or inorganic core materials having hydrophilic or lipophilic property.
    • 本发明涉及一种制备二氧化硅微胶囊的方法,更具体地说,涉及一种制备二氧化硅微胶囊的方法,包括以下步骤:将原硅酸四乙酯(TEOS)溶解在含有水解催化剂的水溶液中以控制水解度并提供亲水性,或 亲核性,将核心材料和适量的氨基丙基三烷氧基硅烷(APS)作为胶凝剂加入到溶液中,并将所得溶液乳化并分散到具有极性与芯材料极性相反的溶液中以通过涂覆芯材料进行微胶囊化 与硅胶壳通过溶胶 - 凝胶反应。 与使用氨溶液等碱性胶凝剂的常规方法相比,本发明的制备微胶囊的方法减少了环境污染,并且适用于具有亲水性或亲油性的有机或无机芯材。