通过使用对液相法合成的前驱体进行煅烧的方法成功的制备了具有单晶多孔结构的 ZnO 纳米片。通过X射线衍射仪(XRD)、环境扫描电子显微镜(FESEM)、高分辨透射电子显微镜(TEM)对单晶多孔ZnO 纳米片进行了结构以及形貌的表征和分析。以其为敏感膜，制作气体传感器，对室内空气污染物，包括苯和甲醛，进行检测。结果显示单晶多孔 ZnO 纳米片对苯和甲醛都有着良好的响应，且响应和恢复时间都非常迅速。对敏感机理以及材料的结构对响应时间的影响也进行了较深入的探讨。
Porous single crystalline ZnO nanoplates were successfully synthesized through a hydrothermal process followed by annealing of the zinc carbonate hydroxide hydrate precursors.The as-prepared products were characterized by X-ray diffraction,scanning electron microscopy,and high revolution transmission electron mi-croscopy.Furthermore,the ZnO gas sensor was fabricated for the detection of indoor air pollutants containing benzene and formaldehyde.The results demonstrate that the porous single crystalline ZnO nanoplates exhibited both sensitive and stable performance towards indoor air pollutants.The response and recovery time of the as-prepared products also reduced compared with commercial ZnO powders.The sensing mechanism and the influ-ence of porous and single-crystalline structures on sensing properties were discussed.
参考文献
| [1] | Jackson R J .Environment meets health[J].SCIENCE,2007,315:1337-1337. |
| [2] | Ken Sexton;John L.Adgate;Gregory C.Pratt;Gurumurthy Ramachandran;Thomas H.Stock;Maria T.Morandi .Evaluating Differences between Measured Personal Exposures to Volatile Organic Compounds and Concentrations in Outdoor and Indoor Air[J].Environmental Science & Technology: ES&T,2004(9):2593-2602. |
| [3] | Jiaxi PengW;Shudong Wang .Correlation between Microstructure and Performance of Pt/TiO2 Catalysts for Formaldehyde Catalytic Oxidation at Ambient Temperature: Effects of Hydrogen Pretreatment[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(27):9897-9904. |
| [4] | 谢成屏,李勇,蓝敏剑.热脱附-气相色谱质谱分析热环境下汽车沙发释放的挥发性有机物[J].分析化学,2011(02):265-268. |
| [5] | 刘超,王树林,蹇敦亮,朱钰方,赵立峰,杨全富.室温Zn粉直接制备ZnO纳米颗粒薄膜及其机理研究[J].功能材料,2013(11):1629-1634. |
| [6] | Maneerat Ongwandee;Rathakheth Moonrinta;Sirima Panyametheekul;Chalongkwan Tangbanluekal;Glenn Morrison .Investigation of volatile organic compounds in office buildings in Bangkok, Thailand: Concentrations, sources, and occupant symptoms[J].Building and environment,2011(7):1512-1522. |
| [7] | Bon, D.M.;Ulbrich, I.M.;De Gouw, J.A.;Warneke, C.;Kuster, W.C.;Alexander, M.L.;Baker, A.;Beyersdorf, A.J.;Blake, D.;Fall, R.;Jimenez, J.L.;Herndon, S.C.;Huey, L.G.;Knighton, W.B.;Ortega, J.;Springston, S.;Vargas, O. .Measurements of volatile organic compounds at a suburban ground site (T1) in Mexico City during the MILAGRO 2006 campaign: Measurement comparison, emission ratios, and source attribution[J].Atmospheric chemistry and physics,2011(6):2399-2421. |
| [8] | MASAHIRO KADOSAKI;YUICHI SAKAI;IKUO TAMURA;ICHIRO MATSUBARA;TOSHIO ITOH .Development of an Oxide Semiconductor Thick Film Gas Sensor for the Detection of Total Volatile Organic Compounds[J].Electronics and Communications in Japan,2010(10):34-41. |
| [9] | Liwei Wang;Shurong Wang;Mijuan Xu .A Au-functionalized ZnO nanowire gas sensor for detection of benzene and toluene[J].Physical chemistry chemical physics: PCCP,2013(40):17179-17186. |
| [10] | 刘桂香,谢明,徐光亮,罗庆平,赖振宇,马寒冰.微波水热法制备纳米ZnO粉体的研究[J].功能材料,2013(02):161-165. |
| [11] | Lexi Zhang;Jianghong Zhao;Jianfeng Zheng;Li Li;Zhenping Zhu .Shuttle-like ZnO nano/microrods: Facile synthesis, optical characterization and high formaldehyde sensing properties[J].Applied Surface Science,2011(2):711-718. |
| [12] | 郑必举,胡文.ZnO/CdO复合薄膜的制备及其性能研究[J].功能材料,2013(07):996-1000. |
| [13] | Wenzhong Wang;Baoqing Zeng;Jian Yang;Bed Poudel;Jianyu Huang;Michael J. Naughton;Zhifeng Ren .Aligned Ultralong ZnO Nanobelts and Their Enhanced Field Emission[J].Advanced Materials,2006(24):3275-3278. |
| [14] | Junko Yahiro;Yuya Oaki;Hiroaki Imai .Biomimetic Synthesis of Wurtzite ZnO Nanowires Possessing a Mosaic Structure[J].Small,2006(10):1183-1187. |
| [15] | Bingqiang Cao;Xuemei Teng;Sung Hwan Heo;Yue Li;Sung Oh Cho;Guanghai Li;Weiping Cai .Different ZnO Nanostructures Fabricated by a Seed-Layer Assisted Electrochemical Route and Their Photoluminescence and Field Emission Properties[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2007(6):2470-2476. |
| [16] | Bai, SL;Chen, LY;Li, DQ;Yang, WS;Yang, PC;Liu, ZY;Chen, AF;Chung, CL .Different morphologies of ZnO nanorods and their sensing property[J].Sensors and Actuators, B. Chemical,2010(1):129-137. |
| [17] | Hsueh TJ;Hsu CL .Fabrication of gas sensing devices with ZnO nanostructure by the low-temperature oxidation of zinc particles[J].Sensors and Actuators, B. Chemical,2008(2):572-576. |
| [18] | Harrison P G;Willett M J .The mechanism of operation of tin(Ⅳ)oxide carbon-monoxide sensors[J].NATURE,1988,332:337-339. |
| [19] | Wan Yude;Chen Jingbo;Wu Xinghui .Preparation and gas-sensing properties of perovskite-type SrFeO3 oxide[J].Materials Letters,2001,49:361-364. |
| [20] | Veldsink J W;Versteeg G F;Van-Swaaij W P M et al.The use of the dusty-gas model for the description of mass transport with chemical reaction in porous media[J].CHEMICAL ENGINEERING,1995,57:115-125. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%