分别以聚乙烯吡咯烷酮（PVP）和溴酚蓝（BPB）掺杂的PVP溶液作为敏感材料，用旋转甩涂法制备薄膜固定在K＋交换玻璃光波导表面，研制出 PVP 薄膜／K＋交换玻璃光波导敏感元件和 BPB?PVP 复合薄膜／K＋交换玻璃光波导敏感元件并研究其气敏性．选择最佳条件制备的PVP薄膜／K＋交换玻璃光波导敏感元件对二甲苯气体的响应较大（1×10－3—1×10－6（v0／v））；PVP 中掺杂不同浓度的溴酚蓝，确定其最佳浓度制备的BPB?PVP复合薄膜／K＋交换玻璃光波导敏感元件，能检测体积比浓度为1×10－8（S／N＝2．9）的二甲苯气体，且体积比浓度在1×10－3—1×10－8（v0／v）范围内输出光强度的变化与二甲苯气体浓度之间有良好的线性关系（ R2＝0．98）．
Pure polyvinylpyrrolidone (PVP) and bromophenol blue (BPB) embedded PVP were prepared and used as sensing materials. Glass optical waveguide ( OWG ) xylene gas sensor was fabricated by coating a thin film of PVP and BPB?PVP on the surface of ion?exchang glass OWG by spin coating method with different rotational speeds. Experimental results showed that the PVP film/K+ exchange OWG sensor exhibited a linear response to xylene gas in the range of 1×10-3—1× 10-6( V0/V);The BPB?PVP composite film/K+ exchange OWG sensor has a higher sensitivity and repeatability to 1 × 10-8 volume fraction of xylene gas. And the sensor exhibited a good linear relationship between output light intensity and gas concentration in the range of 1 × 10-3—1 × 10-8 ( volume ratio) .
参考文献
| [1] | Jones AP .Indoor air quality and health[J].Atmospheric environment,1999(28):4535-4564. |
| [2] | TYE E. BARBER;WALTER G. FISHER;ERIC A. WACHTER .On-Line Monitoring of Aromatic Hydrocarbons Using a Near-Ultraviolet Fiber-Optic Absorption Sensor[J].Environmental Science & Technology: ES&T,1995(6):1576-1580. |
| [3] | 任爱玲∗∗,符凤英,曲一凡,张静,郭斌.改性污泥活性炭对苯乙烯的吸附?[J].环境化学,2013(05):833-838. |
| [4] | Seifert B.[A].Ottawa,Canada,1990:36-49. |
| [5] | D. Gorlo;L. Wolska;B. Zygmunt;J. Namiesnik .Calibration procedure for solid phase microextraction—gas chromatographic analysis of organic vapours in air[J].Talanta: The International Journal of Pure and Applied Analytical Chemistry,1997(9):1543-1550. |
| [6] | 钱志荣,吴建兵,王惠芳,朱曼洁,王勇为.DSQ Ⅱ气相色谱质谱联用仪检测室内空气中苯、甲苯、二甲苯、乙苯和苯乙烯等7种有害物质[J].环境化学,2010(05):995-996. |
| [7] | Smock P L;Orofino T A;Wooten G W et al.Vapor Phase determination of blood ammonia by an optical waveguide technique[J].Analytical Chemistry,1979,51:505. |
| [8] | Guiliani J F;Wohltjen H;Jarvis N L .Reversible optical waveguide sensor for ammonia vapors[J].Optics Letters,1983,8:54-57. |
| [9] | Tiefenthaler K;Lukosz W .Integrated optical switches and gas sensors[J].Optics Letters,1984,10(4):137-139. |
| [10] | Stamm C;lukosz W .Integrated optical difference interfereometer as immunsensor[J].Sens Actuators B:Chemical,1996,31(3):203-207. |
| [11] | Ramaswamy R.V.;Srivastava R. .Ion-exchanged glass waveguides: a review[J].Journal of Lightwave Technology: A Joint IEEE/OSA Publication,1988(6):984-1000. |
| [12] | Abliz Yimit;Kiminori Itoh;Masayuki Murabayshi .A Highly Sensitive Composite Optical Waveguide Applied to the Ammonia Sensor[J].Electrochemistry communications,2001(11):863-865. |
| [13] | Kadir R;Abliz Yimit A;Ablat H et al.Optical waveguide BTX gas sensor based on polyacrylate resin thin film[J].Environmental Science and Technology,2009,43(13):5113-5116. |
| [14] | 沙代提古丽·买合苏提,热扎克·卡地尔,阿布力孜·米提.SnO2薄膜光波导传感元件检测二甲苯蒸气[J].环境化学,2010(04):726-728. |
| [15] | 张责镇;李学金 .光波导气体传感器[J].仪表技术与传感器,1990,5:17-19. |
| [16] | 周公度;段连运.结构化学基础[M].北京:北京大学出版社,2002:133-134. |
| [17] | 近藤精;石川达雄;安部郁夫.吸附科学[M].北京:化学工业出版社,2006:154. |
| [18] | 姑丽各娜·买买提依明,海日沙·阿不来提,阿布力孜·伊米提.In2O3薄膜/锡掺杂玻璃光波导元件及其气敏性研究[J].光电工程,2011(01):107-111,126. |
| [19] | Hayrensa Ablat;Abliz Yimit;Mamtimin Mahmut;Kiminori Itoh .Nafion Film/K~(+)-Exchanged Glass Optical Waveguide sensor for BTX Detection[J].Analytical chemistry,2008(20):7678-7683. |
| [20] | Yimit A;Rossberg AG;Amemiya T;Itoh K .Thin film composite optical waveguides for sensor applications: a review[J].Talanta: The International Journal of Pure and Applied Analytical Chemistry,2005(5):1102-1109. |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%