溶胶-凝胶法制备TiO_2-C纳米复合材料的研究  

Preparation of TiO_2-C Nano-composite Materials by Sol-Gel Method

作　　者：邵霞[1,2] 张睿[2] 陆文聪[1] 卢春[2] Shao, Xia[1,2]; Zhang, Rui[2]; Lu, Wen-Cong[1]; Lu, Chun[2]

机构地区：[1]上海大学材料科学与工程学院,上海200072 [2]上海应用技术学院材料科学与工程学院,上海201418

出　　处：《人工晶体学报》2013年第2期305-309,315,共6页Journal of Synthetic Crystals

基　　金：上海市教委重点学科项目(J51504);国家自然科学基金(50872033);上海市科委地方高校能力建设重点项目(12160503600)

摘　　要：采用溶胶-凝胶法制备了TiO2-C纳米复合材料,利用XRD、SEM和TEM等方法对样品进行分析表征。实验结果表明:网络诱导剂的加入有利于样品在室温下静置后更快凝胶,经600℃焙烧3 h后样品中二氧化钛晶粒有不同程度长大,其特征峰更加明显,且其中二氧化钛晶粒为锐钛矿型;乙酰乙酸乙酯的加入有利于溶胶-凝胶的形成,且随着乙酰乙酸乙酯加入量的增加,TiO2-C纳米复合材料的孔容和孔径均增加。Ti02-C nanoeomposite materials were prepared by using sol-gel process, which were characterized by XRD, SEM and TEM. Results showed that the precursors of TiO2 and carbon could be co-gelated soon at room temperature by adding propylene oxide as gelation initiator. Ti02 grain grows up after it is heated at 600 ℃ for 3 h, and its characteristic peak is more clear. The crystal structure of TiO2 is anatase. Ethyl acetoacetate as a complexing agent is beneficial for the formation of the gels. The pore volume and the pore diameter in the TiO2-C nanocomposite materials increase with the increasing amount of the ethyl acetoacetate.

关 键 词：溶胶-凝胶法 TiO2-C 纳米复合材料 

分 类 号：O782[理学—晶体学]