公开(公告)号：KR100836771B1

公开(公告)日：2008-06-10

申请号：KR1020070013986

申请日：2007-02-09

Applicant: 한국교통대학교산학협력단

Inventor： 임정혁 ,  김성룡 ,  김경민 ,  김영관 ,  윤성훈

IPC: B82B3/00 ,  B82Y40/00

CPC classification number: C01G23/047 ,  B01J19/123 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2004/64

Abstract: A method for producing titanium dioxide nanostructure by UV irradiation is provided to need no membrane or additive for forming a nanostructure by virtue of self-assemblage of rod-like or hexahedral titanium dioxide three-dimensional nanostructure. A method for producing titanium dioxide nanostructure by UV irradiation comprises the steps of: (1) dispersing titanium dioxide into an ethanol solution having a pH controlled to 1-4 to obtain titanium dioxide nanoparticle colloid, followed by drying to obtain powder; (2) redispersing the powdered titanium dioxide nanoparticles into an aqueous acid solution having a pH controlled to 1-3 and applying ultrasonic waves thereto to obtain colloid in which nanoparticles are dispersed; (3) irradiating UV rays to the colloid in which nanoparticles are dispersed to activate the surface of the titanium dioxide nanoparticles; and (4) applying the colloid in which surface-activated titanium dioxide nanoparticles are dispersed onto a substrate, followed by drying.

Abstract translation: 通过紫外线照射制备二氧化钛纳米结构体的方法，不需要通过棒状或六面体二氧化钛三维纳米结构的自组装形成纳米结构的膜或添加剂。 通过UV照射制造二氧化钛纳米结构的方法包括以下步骤：（1）将二氧化钛分散在pH控制在1-4的乙醇溶液中，得到二氧化钛纳米粒子胶体，然后干燥得到粉末; （2）将粉末状二氧化钛纳米颗粒再分散至pH控制在1-3的酸性水溶液中并向其施加超声波以获得其中分散有纳米颗粒的胶体; （3）向其中分散有纳米颗粒的胶体照射紫外线以激活二氧化钛纳米颗粒的表面; 和（4）将表面活化的二氧化钛纳米颗粒分散在基质上的胶体，然后干燥。