Br-PADAP掺杂醋酸纤维素纳米纤维在可视化检测铀酰离子中的应用
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- 英文论文题名：Br-PADAP Embedded in Cellulose Acetate Electrospun Nanofibers: Colorimetric Sensor Strips for Visual Uranyl Recognition
- 论文作者：胡霖 ; 颜学武 ; 单丹
- 英文论文作者：Lin Hu ; Xue-wu Yan ; Dan Shan ; School of Environmental and Biological Engineering ; Nanjing University of Science and Technology
- 年：2016
- 作者机构：南京理工大学环境与生物工程学院;
- 论文关键词：铀酰离子 ; 可视化检测 ; 纳米纤维
- 会议召开时间：2016-11-18
- 会议录名称：中国第四届静电纺丝大会（CICE 2016）摘要集
- 语种：中文
- 分类号：TQ341.2
- 学会代码：ZGNM
- 会议名称：中国第四届静电纺丝大会(CICE 2016)
- 会议地点：中国北京
- 主办单位：中国复合材料学会超细纤维材料分会（筹）
- 学会名称：中关村科创纳米技术创新研究会
- 页数：1
- 文件大小：646k
- 原文格式：D
- 会议级别：全国
摘要
在本工作中,我们成功制备出Br-PADAP掺杂的醋酸纤维素纳米纤维,利用Br-PADAP与铀酰离子的络合显色反应,可视化检测水中的铀酰离子,并通过静电纺丝技术,制备出固态纳米纤维膜,方便检测与分离。掺杂后的Br-PADAP依然对铀酰离子具有良好的显色性能,在p H值为7的条件下,对铀酰离子的检测限可达50ppb。同时,我们通过图像处理技术,将显色后的纳米纤维膜的颜色转换为色度系数,从而更精确的定量检测铀酰离子浓度。最后,我们还研究了该纤维膜的抗干扰性能,其在海水中依然保持良好的显色性能。
In this work, a new visual colorimetric strip based on cellulose acetate(CA) nanofiber mats modified by 2-(5-Bromo-2-pyridylazo)-5-(diethylamino) phenol(Br-PADAP) was successfully prepared via electrospinning technology. The prepared colorimetric strip showed high sensitivity towards UO_2~(2+) with the yellow-to-purple color change signal. Upon the optimal conditions of solution p H at 7 and response time for 80 min, the detection limit for UO_2~(2+)can reach 50 ppb. Moreover, the strip also exhibited excellent anti-interference ability in the presence of other metal ions. In order to achieve the quantitative detection for UO_2~(2+), a color-differentiation map was established, which was prepared from converted H values. Finally, the strip was also used to detect UO_2~(2+) in the seawater and showed high sensitivity.
In this work, a new visual colorimetric strip based on cellulose acetate(CA) nanofiber mats modified by 2-(5-Bromo-2-pyridylazo)-5-(diethylamino) phenol(Br-PADAP) was successfully prepared via electrospinning technology. The prepared colorimetric strip showed high sensitivity towards UO_2~(2+) with the yellow-to-purple color change signal. Upon the optimal conditions of solution p H at 7 and response time for 80 min, the detection limit for UO_2~(2+)can reach 50 ppb. Moreover, the strip also exhibited excellent anti-interference ability in the presence of other metal ions. In order to achieve the quantitative detection for UO_2~(2+), a color-differentiation map was established, which was prepared from converted H values. Finally, the strip was also used to detect UO_2~(2+) in the seawater and showed high sensitivity.
引文
[1]Dingyuan Zhang.;Zhuo Chen.;Haneen Omar.;et al.ACS Appl.Mater.Interfaces.2015,7,4589-4594.
[2]Yuning Guo.;Nan Huang.;Bing Yang.;et al.Sensors and Actuators B.2016.231.194-202.
[2]Yuning Guo.;Nan Huang.;Bing Yang.;et al.Sensors and Actuators B.2016.231.194-202.