| 331 | 1 | 53 |
| 下载次数 | 被引频次 | 阅读次数 |
通过Au—S键的自组装作用,制备了不同功能单体修饰的金纳米颗粒(AuNP),采用扫描电子显微镜(SEM)对制备材料的微观形貌进行了表征,并使用滴铸法制成了电阻式气体传感器,对其气敏性能进行了测试。实验结果表明,基于11-巯基-1-十一醇(MUD)功能化的AuNP化学电阻传感器的气敏性能最佳,在室温条件下,对1×10-6异丙醇(IPA)蒸气响应值可达5.0%,是未功能化AuNP化学电阻传感器响应值的4.7倍。MUD功能化的AuNP化学电阻传感器线性范围为1×10-6～1×10-5,相关系数R2=0.993,检出限(LOD)为7.6×10-7。同时,该传感器表现出优异的IPA选择性,且具有良好的恢复性和重复性。该传感器操作简单、成本低廉,在IPA气体检测方面有重要的应用价值。
Abstract：Gold nanoparticles(AuNPs) modified with different functional monomers were prepared through Au—S bonds self-assembly. The micro morphology of the prepared materials was characterized by scanning electron microscope(SEM). The resistive gas sensor was prepared by drop casting method, and its gas sensing properties were tested. The experimental results indicate that the AuNP chemical resistance sensor functionalized with 11-mercapto-1-undecol(MUD) has the best gas sensing property, and the response value to 1×10-6 isopropanol(IPA) vapor reaches 5.0% at room temperature, which is 4.7 times that of the unfunctionalized AuNP chemical resistance sensor. The linear range of the MUD functionalized chemical resistance sensor is 1×10-6 to 1×10-5, correlation coefficient R2 is 0.993, and the limit of detection(LOD) is 7.6×10-7. Meanwhile, the sensor exhibits excellent IPA selectivity, good recovery and repeatability. The sensor is of simple operation and low cost, and has important application value in IPA gas detection.
[1] KAMAL M S,RAZZAK S A,HOSSAIN M M.Catalytic oxidation of volatile organic compounds (VOCs) —a review[J].Atmospheric Environment,2016,140:117-134.
[2] NGO Y H,BROTHERS M,MARTIN J A,et al.Chemically enhanced polymer-coated carbon nanotube electronic gas sensor for isopropyl alcohol detection[J].ACS Omega,2018,3(6):6230-6236.
[3] SHAO Y,CHEN H H,LI Y B,et al.Fabrication of novel porous carbon membrane/sintered metal fibers composite for isopropanol adsorption[J].Chemical Engineering Journal,2015,276:51-58.
[4] SUN X H,SHAO K,WANG T.Detection of volatile organic compounds (VOCs) from exhaled breath as noninvasive methods for cancer diagnosis[J].Analytical and Bioanalytical Chemistry,2016,408(11):2759-2780.
[5] GALLEGO E,ROCA F,PERALES J F,et al.Characte-rization and determination of the odorous charge in the indoor air of a waste treatment facility through the evaluation of volatile organic compounds (VOCs) using TD-GC/MS[J].Waste Management,2012,32(12):2469-2481.
[6] KAMARULZAMAN N H,LE-MINH N,STUETZ R M.Identification of VOCs from natural rubber by different headspace techniques coupled using GC-MS[J].Talanta,2019,191:535-544.
[7] FRANCIOSO L,FORLEO A,TAURINO A M,et al.Linear temperature microhotplate gas sensor array for automotive cabin air quality monitoring[J].Sensors and Actuators:B,2008,134(2):660-665.
[8] HYODO T,GOTO T,TAKAMORI M,et al.Effects of Pt loading onto SnO2 electrodes on CO-sensing properties and mechanism of potentiometric gas sensors utilizing an anion-conducting polymer electrolyte[J].Sensors and Actuators:B,2019,300:127041-1-127041-10.
[9] BEHERA B,CHANDRA S,ELECTRONICS C F A I,et al.Synthesis and characterization of ZnO nanowires and ZnO-CuO nanoflakes from sputter-deposited brass(Cu0.65-Zn0.35) film and their application in gas sensing[J].Journal of Materials Science & Technology,2015,31(11):1069-1078.
[10] KIM N H,CHOI S J,KIM S J,et al.Highly sensitive and selective acetone sensing performance of WO3 nanofibers functionalized by Rh2O3 nanoparticles[J].Sensors and Actuators:B,2016,224:185-192.
[11] 深圳普恩科技有限公司.技术参数MQ-135气体传感器[K].2021.
[12] Sensirion.Datasheet SGP30 Sensirion gas platform[K].2017:1-15.
[13] WOHLTJEN H,SNOW A W.Colloidal metal-insulator-metal ensemble chemiresistor sensor[J].Analytical Chemistry,1998,70(14):2856-2859.
[14] JOSEPH Y,BESNARD I,ROSENBERGER M,et al.Self-assembled gold nanoparticle/alkanedithiol films:preparation,electron microscopy,XPS-analysis,charge transport,and vapor-sensing properties[J].Journal of Physical Chemistry:B,2003,107(30):7406-7413.
[15] SU L,MAO L Q.Gold nanoparticle/alkanedithiol conductive films self-assembled onto gold electrode:electrochemistry and electroanalytical application for voltammetric determination of trace amount of catechol[J].Talanta,2006,70(1):68-74.
[16] ADAMS O,HAKIM M,SHEHADA N,et al.Diagnosing lung cancer in exhaled breath using gold nanoparticles.[J].Nature Nanotechnology,2009,4(10):669-673.
[17] GAO T,WANG Y C,ZHANG C W,et al.Classification of tea aromas using multi-nanoparticle based chemiresistor arrays[J].Sensors,2019,19(11):2547-1-2547-12.
[18] XIE Z Z,RAJU M V R,STEWART A C,et al.Imparting sensitivity and selectivity to a gold nanoparticle chemiresistor through thiol monolayer functionalization for sensing acetone[J].RSC Advances,2018,8:35618-35624.
[19] XIE Z Z,RAJU M V R,ADHIHETTY P K,et al.Effect of thiol molecular structure on the sensitivity of gold nanoparticle-based chemiresistors toward carbonyl compounds[J].Sensors,2020,20(24):7024-1-7024-11.
[20] GRATE J W,NELSON D A,SKAGGS R.Sorptive behavior of monolayer-protected gold nanoparticle films:implications for chemical vapor sensing[J].Analytical Che-mistry,2003,75(8):1868-1879.
[21] 胡瑞省，刘善堂，朱涛，等.金纳米粒子通过形成Au—S键的组装[J].物理化学学报，1999,15(11):961-965.
[22] NEUGEBAUER C A,WEBB M B.Electrical conduction mechanism in ultrathin,evaporated metal films[J].Journal of Applied Physics,1962,33(1):74-82.
[23] KOLLMAN P A,ALLEN L C.The theory of the hydrogen bond[J].Chemical Reviews,1972,72(3):283-303.
[24] ALI S B,GHATAK B,GUPTA S D,et al.Detection of 3-carene in mango using a quartz crystal microbalance sensor[J].Sensors and Actuators:B,2016,230:791-800.
[25] 郭建丽.单分子层包裹的金纳米粒子的色谱提纯与传感机理研究[D].长沙：湖南大学，2006.
[26] CHIEN P J,SUZUKI T,TSUJII M,et al.Bio-sniffer (gas-phase biosensor) with secondary alcohol dehydrogenase (SADH) for determination of isopropanol in exhaled air as a potential volatile biomarker[J].Biosensors and Bioelectronics,2017,91:341-346.
[27] WANG Y,LIU C Y,WANG Z,et al.Sputtered SnO2∶NiO thin films on self-assembled Au nanoparticle arrays for MEMS compatible NO2 gas sensors[J].Sensors and Actuators:B,2018,278:28-38.
基本信息:
DOI：10.13250/j.cnki.wndz.2021.07.007
中图分类号:TB383.1;TP212
引用信息:
[1]唐嫒尧,李明虓,程洁,等.基于自组装金纳米颗粒的化学电阻传感器[J].微纳电子技术,2021,58(07):604-611+626.DOI:10.13250/j.cnki.wndz.2021.07.007.
基金信息:
国家重点研发计划资助项目(2020YFC2004503); 北京市科技新星计划资助项目(Z20110000682083)
2021-06-16
2021-06-16