用于NO传感器的CuO修饰还原氧化石墨烯的合成
Synthesis of CuO-Modified Reduced Graphene Oxide for NO Sensors.
作者信息
Huang Manman, Wang Yanyan, Ying Shuyang, Wu Zhekun, Liu Weixiao, Chen Da, Peng Changsi
机构信息
School of Optoelectronic Science and Engineering & Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, Suzhou 215006, China.
Key Lab of Advanced Optical Manufacturing Technologies of Jiangsu Province & Key Lab of Modern Optical Technologies of Education Ministry of China, Soochow University, Suzhou 215006, China.
出版信息
Sensors (Basel). 2021 Mar 11;21(6):1958. doi: 10.3390/s21061958.
Nowadays, metal oxide semiconductors (MOS)-reduced graphene oxide (rGO) nanocomposites have attracted significant research attention for gas sensing applications. Herein, a novel composite material is synthesized by combining two p-type semiconductors, i.e., CuO and rGO, and a p-p-type gas sensor is assembled for NO detection. Briefly, polypyrrole-coated cuprous oxide nanowires (PPy/CuO) are prepared via hydrothermal method and combined with graphene oxide (GO). Then, the nanocomposite (rGO/PPy/CuO) is obtained by using high-temperature thermal reduction under Ar atmosphere. The results reveal that the as-prepared rGO/PPy/CuO nanocomposite exhibits a maximum NO response of 42.5% and is capable of detecting NO at a low concentration of 200 ppb. Overall, the as-prepared rGO/PPy/CuO nanocomposite demonstrates excellent sensitivity, reversibility, repeatability, and selectivity for NO sensing applications.
如今，金属氧化物半导体（MOS）-还原氧化石墨烯（rGO）纳米复合材料在气体传感应用方面已引起了广泛的研究关注。在此，通过结合两种p型半导体，即氧化铜（CuO）和rGO，合成了一种新型复合材料，并组装了一种用于检测NO的p-p型气体传感器。简要地说，通过水热法制备聚吡咯包覆的氧化亚铜纳米线（PPy/CuO），并将其与氧化石墨烯（GO）相结合。然后，在氩气气氛下通过高温热还原获得纳米复合材料（rGO/PPy/CuO）。结果表明，所制备的rGO/PPy/CuO纳米复合材料对NO的最大响应为42.5%，并且能够检测低至200 ppb浓度的NO。总体而言，所制备的rGO/PPy/CuO纳米复合材料在NO传感应用中表现出优异的灵敏度、可逆性、重复性和选择性。
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