CAJ | 학술논문

采用溶胶-凝胶法合成纳米 TiO2粉体，通过正交实验优化了纳米 TiO2的合成工艺条件，用透射电镜及 X-射线衍射技术对纳米 TiO2样品进行表征；进而采用涂膜法制备纳米 TiO2/Pt 修饰电极，通过循环伏安法研究其在葡萄糖体系中的电化学催化性能。结果表明：在钛酸丁酯与乙醇体积比为2∶3、烘干温度为80℃、焙烧温度为500℃时，合成的纳米 TiO2具有最佳电化学催化性能；合成的纳米 TiO2为锐钛矿型，颗粒粒径分布在5～20 nm 之间；纳米 TiO2/Pt修饰电极对葡萄糖具有显著的电化学催化活性。
채용용효-응효법합성납미 TiO2분체，통과정교실험우화료납미 TiO2적합성공예조건，용투사전경급 X-사선연사기술대납미 TiO2양품진행표정；진이채용도막법제비납미 TiO2/Pt 수식전겁，통과순배복안법연구기재포도당체계중적전화학최화성능。결과표명：재태산정지여을순체적비위2∶3、홍간온도위80℃、배소온도위500℃시，합성적납미 TiO2구유최가전화학최화성능；합성적납미 TiO2위예태광형，과립립경분포재5～20 nm 지간；납미 TiO2/Pt수식전겁대포도당구유현저적전화학최화활성。
Nano-TiO2 samples were synthesized by the sol-gel method,characterized by TEM and XRD.The synthetic technique of nano-TiO2 was studied by orthogonal experiment.The electrochemical catalytic perform-ance of nano-TiO2-modified Pt electrode in glucose solution was investigated by cyclic voltammetry(CV).The optimal synthetic conditions were obtained as follows:the volume ratio of TBOT and EtOH was 2∶3,the dr-ying temperature was 80 ℃,the calcination temperature was 500 ℃.The nano-TiO2 samples prepared were ana-tase-type crystals with the size of 5 ~ 20 nm.The nano-TiO2-modified Pt electrode possessed higher electro-chemical catalytic activity.