| 溶剂热法制备石墨烯/SnO2及其气敏性 | |
| Preparation and Gas Sensing Properties of Graphene/SnO2 by Solvothermal Method | |
| 摘要: 采用溶剂热法制备了石墨烯/SnO2（G/SnO2）纳米材料，利用扫描电子显微镜（SEM）、X射线衍射（XRD）、拉曼光谱（Raman）等对G/SnO2进行了表征，研究了石墨烯的量和溶剂热温度对该纳米材料气敏性能的影响。实验结果表明，石墨烯可以调节SnO2晶体的生长：当石墨烯上清液的量为1 mL、热处理温度为160℃时，制备的G/SnO2纳米材料在室温下对氨气具有较好的气敏选择性和较高的灵敏度；且当气体体积浓度为1 000 μL·L-1时，对NH3的灵敏度为266.4，检出限达到了0.01 μL·L-1。 | |
| 关键词: 石墨烯 SnO2 氨气 溶剂热法 气敏性能 | |
| 基金项目: 国家自然科学基金（No.61671019）资助项目 | |
| Abstract: Graphene/SnO2 (G/SnO2) composites were prepared by solvothermal method and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Raman spectroscopy, etc. The effect of the amount of graphene and the solvothermal temperature on the gas sensing properties of G/SnO2 composites was investigated. The results showed that graphene supernatant can regulate the growth of SnO2 crystals. The G/SnO2 nanomaterial obtained with 1 mL supernatant and heat treatment at 160℃ for 10 h had good response and selectivity to ammonia at room temperature. The response to 1 000 μL·L-1 ammonia gas reached 266.4 and the detection limit reached 0.01 μL·L-1. | |
| Keywords: graphene SnO2 ammonia solvothermal method gas sensing properties | |
| 投稿时间：2019-01-10 修订日期：2019-04-09 | |
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| 蒋余芳,吴海燕,储向峰,梁士明,张俊,高奇,汪艳.溶剂热法制备石墨烯/SnO2及其气敏性[J].无机化学学报,2019,35(7):1163-1168. | |
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