Synthesis of ZnO-CuO flower-like hetero-nanostructures as volatile organic compounds (VOCs) sensor at room temperature

• Autorzy: Sabry R. S. , Alkareem R. A. S. A.

Identyfikatory

DOI

10.2478/msp-2018-0055

• Języki publikacji: EN

Abstrakty

EN

ZnO-CuO flower-like hetero-nanostructures were successfully prepared by combining hydrothermal and dip coating methods. Flower-like hetero-nanostructures of ZnO-CuO were examined by X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), and UV-Vis. The sensing properties of ZnO-CuO flower-like hetero-nanostructures to volatile organic compounds (VOCs) were evaluated in a chamber containing acetone or isopropanol gas at room temperature. The sensitivity of ZnO-CuO flower-like hetero-nanostructures to VOCs was enhanced compared to that of pure leafage-like ZnO nanostructures. Response and recovery times were about 5 s and 6 s to 50 ppm acetone, and 10 s and 8 s to 50 ppm isopropanol, respectively. The sensing performance of ZnO-CuO flower-like hetero-nanostructures was attributed to the addition of CuO that led to formation of p-n junctions at the interface between the CuO and ZnO. In addition, the sensing mechanism was briefly discussed.

Słowa kluczowe

EN

hydrothermal process; dip coating; hetero-nanostructures; volatile organic compounds; VOCs

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2018
• Tom: Vol. 36, No. 3
• Strony: 452--459
• Opis fizyczny: Bibliogr. 19 poz., rys., tab.

Twórcy

autor

Sabry R. S.

• Department of Physics, College of Science, Al-Mustansiriyah University, Iraq

autor

Alkareem R. A. S. A.

• Department of Physics, College of Science, Al-Mustansiriyah University, Iraq

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