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溶胶-凝胶制备TiO_2/SiO_2复合薄膜的FT-IR表征 被引量:22

Study of the FT IR for Sol gel Coating TiO 2/SiO 2 Composite Thin Films
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摘要 FT-IR吸收谱用来研究具有多孔结构的TiO2/SiO2复合薄膜;薄膜在1200cm-1有一较强的肩峰,其强度与峰位随热处理温度而产生变化。在955cm-1的吸收峰是由于Si-O-Ti和Si-OH的结果,并随着热处理温度的提高其吸收峰完全是Si-O-Ti振动所引起的,其峰位随着TiO2含量的增加,向低频区域移动。TiO2锐钛矿结构的析出是从非晶富Ti的氧化物区域分凝出来的,并不减少Si-O-Ti振动强度。 Fourier transform infrared absorption spectroscopy had been utilized to study the structure of porous silica titania thin film. At 1200cm 1 , the film had broad bands arose from asymmetric stretching vibration of Si O Ti bridging sequences. As the temperature increased, these bands were shifted to higher frequencies and broadened to high frequency side. This changes were attributed to densification of the film. The band at 955cm 1 was attributed to Si O Ti and Si OH vibrational mode. As the TiO 2 content was increased, this band shifted to lower frequencies. amorphous TiO 2 rich regions were formed in the network. These Amorphous TiO 2 rich regions were to crystallize during continue thermal treatment.
出处 《功能材料》 EI CAS CSCD 北大核心 1997年第5期490-491,共2页 Journal of Functional Materials
关键词 溶胶-凝胶 二氮化钛 薄膜 红外谱 二氧化硅 sol gel, thin film, FT IR phase segregation
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参考文献2

  • 1翟继卫,ISE9,1996年
  • 2Liu Zhufang,J Phys Chem,1994年,98卷,1253页

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