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Structural Characterization of a Glass Ceramic Developed from TiO_2 and a Novel Material-Silica Xerogel Converted From Sago Waste Ash

机译:TiO_2研制的玻璃陶瓷和西米废灰转化的新型材料-二氧化硅干凝胶的结构表征

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摘要

In this paper, we present the synthesis procedure and the results of an investigation of a novel silica xerogel (SX) glass ceramic developed from an amorphous SX derived from sago waste ash that incorporates TiO_2 as an additive. The studied compositions have been prepared by adding of either 20% or 80 wt% of TiO_2 into SX, respectively. The samples have been dry pressed and sintered in the temperature range between 900℃ and 1500℃. Their properties have been characterized on the basis of the experimental data obtained using X-ray diffraction (XRD), Fourier transform infrared (FTIR), and ultraviolet-visible (UV-Vis) spectroscopy. It has been found that an increase of the content of SX in the composition leads to an increase of the shift of the bandgap energy of TiO_2. The analysis based on the interpretation of both XRD patterns and FTIR spectrum allows one to explain the shift in the bandgap energy by an enlargement of the crystallite size of TiO_2 and by forming of more Si-O-Ti bonds in the samples with a smaller loading of TiO_2.
机译:在本文中,我们介绍了由无定形SX衍生的新型二氧化硅干凝胶(SX)玻璃陶瓷的合成方法和研究结果,该无定形SX是由西米废灰结合TiO_2作为添加剂制成的。通过分别向SX中添加20重量%或80重量%的TiO 2来制备所研究的组合物。将样品在900℃至1500℃的温度范围内进行干压和烧结。根据使用X射线衍射(XRD),傅立叶变换红外(FTIR)和紫外可见(UV-Vis)光谱获得的实验数据对它们的性能进行了表征。已经发现,组合物中SX含量的增加导致TiO_2的带隙能的移动增加。基于对XRD谱图和FTIR光谱的解释的分析,可以解释通过增加TiO_2的微晶尺寸和通过在较小载荷的样品中形成更多的Si-O-Ti键来解释带隙能量的变化。 TiO_2。

著录项

  • 来源
    《Materials science forum》 |2016年第2016期|81-86|共6页
  • 作者单位

    Faculty of Learning Teacher and Education Science, Siliwangi University, Tasikmalaya, Indonesia,Department of Electrical Engineering, Faculty of Engineering, Siliwangi University, Tasikmalaya, Indonesia;

    Research Center for Development of Far-Infrared Region (FIR Center), University of Fukui, Fukui, Japan;

    Department of Physics, Faculty of Mathematics and Natural Sciences, University of Haluoleo, Kendari, Indonesia;

    Department of Electrical Engineering, Faculty of Engineering, Siliwangi University, Tasikmalaya, Indonesia;

    Department of Physics Engineering, Faculty of Industrial Engineering, Bandung Institute of Technology, Bandung, Indonesia;

    Lab. Plasma Physics and Engineering, Institute of Electronics of the Bulgarian Academy of Sciences, Bulgaria;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bandgap energy; crystallite size; glass ceramic; silica xerogel; sintering temperature; TiO_2;

    机译:带隙能量微晶尺寸玻璃陶瓷二氧化硅干凝胶烧结温度TiO_2;

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