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      Permanent link:
      https://www.ias.ac.in/article/fulltext/boms/039/06/1483-1492

    • Keywords

       

      ZSM-5 zeolite; composites; XRD; FTIR; ethanol sensing.

    • Abstract

       

      Nano-ZSM-5 is synthesized without organic template via microwave-assisted hydrothermal technique. The synthesized nano-ZSM-5 zeolite is blended with metal oxides (ZnO and TiO$_2$) to have novel composites as ethanol sensors. The composites are characterized by X-ray diffraction (XRD) and Fourier transform infrared (FTIR) techniques. A study on ethanol sensing behaviour of metal oxide blended composite screen-printed thick films is carried out and the effect of metal oxide concentration on various ethanol sensing features, specifically operating temperature, response/recovery time and active region of the sensor, are investigated. XRD and FTIR confirm the blending of metal oxides in ZSM-5 matrix. Both, ZnO and TiO$_2$ blended, composite films are sensitive to ethanol. It can be concluded that metal oxide blending improves the preformance of sensor for ethanol detection. The response/recovery time and active sensing regions depend upon the concentration of metal oxide in host zeolite. The ZnO/ZSM-5 and TiO$_2$/ZSM-5 composite films are the excellent ethanol sensors.

    • Author Affiliations

       

      MADHURI LAKHANE1 2 RAJENDRA KHAIRNAR1 MEGHA MAHABOLE1

      1. School of Physical Sciences, Swami Ramanand Teerth Marathwada University, Nanded (MS) 431606, India
      2. Faculty of Mechanical Engineering, University of Maribor, Maribor 2000, Slovenia
    • Dates

       

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