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水熱法制備石墨烯-鎵酸鋅復(fù)合物及其氣敏性能的研究
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作者單位:

1.安徽工業(yè)大學(xué)化學(xué)與化工學(xué)院;2.臨沂大學(xué)材料科學(xué)與工程學(xué)院

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基金項目:

國家自然科學(xué)基金項目（面上項目，重點項目，重大項目）


Gas sensing properties of graphene-ZnGa2O4composites prepared by hydrothermal method
Author:
Affiliation:

1.School of Chemistry and Chemical Engineering, Anhui University of Technology;2.School of Materials Science and Engineering, Linyi University

Fund Project:

National Science Foundation of China

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    摘要:

    通過水熱法制備了一系列的石墨烯-鎵酸鋅復(fù)合物。所制備的材料用XRD，SEM，TEM，拉曼和XPS進行表征。同時，探究了復(fù)合物的氣敏性能。結(jié)果表明，石墨烯的含量對復(fù)合材料的氣敏響應(yīng)值和選擇性有著很大的影響，并且當(dāng)石墨烯的含量在0.1%時，復(fù)合材料的性能最好。當(dāng)操作溫度在203攝氏度時，0.1%石墨烯-鎵酸鋅復(fù)合材料對1000ppm的甲醛的響應(yīng)值達32.2倍，最低檢測限度為1ppm。同時，該材料的選擇性也比較優(yōu)越，對1000ppm甲醛和1000ppm丙酮的響應(yīng)值的比值為26.8。該材料對1000ppm甲醛的響應(yīng)和恢復(fù)時間分別為11秒和5秒，對1ppm甲醛的響應(yīng)和恢復(fù)時間分別為6秒和5秒.

    Abstract:

    A series of Graphene-ZnGa2O4composites (G-ZnGa2O4) were synthesized by hydrothermal method. The prepared materials were characterized by means of XRD, SEM, TEM, Raman and XPS, respectively. The gas sensing properties of G-ZnGa2O4 composites were investigated. The results indicated that the graphene content has a great influence on the response and the gas sensing selectivity, the optimal composition of G-ZnGa2O4 gas sensing material was 0.1%G- ZnGa2O4. The sensor based on 0.1% G-ZnGa2O4 exhibited high response to 1000 ppm formaldehyde when operated at 203oC and the response reached 32.2; the detection limit for formaldehyde was as low as 1ppm; the gas sensing selectivity to formaldehyde was also good, the ratio of S1000 ppm formaldehyde and S1000 ppm acetone reached 26.8. The response time and recovery time for 1000 ppm formaldehyde were 11 s and 5 s, the response time and recovery time for 1 ppm formaldehyde were 6 s and 5 s, respectively.

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引用本文

李學(xué),張俊,梁士明,儲向峰,白林山,董永平.水熱法制備石墨烯-鎵酸鋅復(fù)合物及其氣敏性能的研究[J].稀有金屬材料與工程,2019,48(9):2815~2820.[Li Xue, Zhang Jun, Shiming Liang, Xiangfeng Chu, Linshan Bai, Yongping Dong. Gas sensing properties of graphene-ZnGa2O4composites prepared by hydrothermal method[J]. Rare Metal Materials and Engineering,2019,48(9):2815~2820.]
DOI：10.12442/j. issn.1002-185X.20180349

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  • 收稿日期:2018-04-09
  • 最后修改日期:2018-07-15
  • 錄用日期:2018-07-27
  • 在線發(fā)布日期: 2019-10-09
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