咔唑-硫脲席夫碱荧光探针对Hg2+和Ag+的可视化识别

殷芳芳; 朱维菊; 方敏; 徐颖; 李村

doi:10.3788/fgxb20153610.1137

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咔唑-硫脲席夫碱荧光探针对Hg²⁺和Ag⁺的可视化识别

材料合成及性能 | 更新时间：2020-08-12

- 咔唑-硫脲席夫碱荧光探针对Hg²⁺和Ag⁺的可视化识别
- Visual Recognition for Hg²⁺ and Ag⁺ of Carbazole-thiourea Schiff Base Fluorescence Probe
- 发光学报 2015年36卷第10期页码：1137-1144
- 作者机构：
  
  安徽大学化学化工学院安徽省绿色高分子材料重点实验室, 安徽合肥 230601
- 作者简介：
- 基金信息：
  
  国家自然科学基金(21404001)();安徽高校省级自然科学研究重点项目(KJ2013A013)();安徽大学博士基金(33190105)资助项目()
- DOI：10.3788/fgxb20153610.1137
  中图分类号： O625.64
- 纸质出版日期：2015-10-10，
  
  收稿日期：2015-6-12，
  
  修回日期：2015-7-29，
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殷芳芳, 朱维菊, 方敏等. 咔唑-硫脲席夫碱荧光探针对Hg2+和Ag+的可视化识别[J]. 发光学报, 2015,36(10): 1137-1144

YIN Fang-fang, ZHU Wei-ju, FANG Min etc. Visual Recognition for Hg2+ and Ag+ of Carbazole-thiourea Schiff Base Fluorescence Probe[J]. Chinese Journal of Luminescence, 2015,36(10): 1137-1144
殷芳芳, 朱维菊, 方敏等. 咔唑-硫脲席夫碱荧光探针对Hg2+和Ag+的可视化识别[J]. 发光学报, 2015,36(10): 1137-1144 DOI： 10.3788/fgxb20153610.1137.

YIN Fang-fang, ZHU Wei-ju, FANG Min etc. Visual Recognition for Hg2+ and Ag+ of Carbazole-thiourea Schiff Base Fluorescence Probe[J]. Chinese Journal of Luminescence, 2015,36(10): 1137-1144 DOI： 10.3788/fgxb20153610.1137.

摘要

以3-溴代-N-丁基咔唑和4-苯基-3-氨基硫脲为原料

合成了一种新型含咔唑基的硫脲席夫碱

使用紫外-可见光谱、荧光光谱、核磁氢谱以及质谱等对其成分结构、离子识别性能、识别模式进行了研究。结果表明:

对Hg

和Ag

具有快速响应的可视化选择性识别。当Hg

或Ag

加入后

溶液的颜色由无色立刻变为黄色;同时

溶液中加入Hg

和Ag

后

荧光光谱有不同变化

且其他离子的存在并不干扰

对Hg

和Ag

的选择性识别。研究还发现

对Hg

和Ag

的荧光识别模式不同:加入Ag

后

与Ag

生成了配合物

发生荧光猝灭;加入Hg

后

先与Hg

络合发生荧光猝灭

然后脱去HgS。

Abstract

A thiourea Schiff base (

) containing carbazole was synthesized from carbazole derivative and 4-phenyl-3-amino thiourea as reagents. The structure of compound

was characterized by

H NMR and MS. The recognition performance and the binding mode of

and metal ions were investigated by UV-Vis and fluorescence spectroscopies. The results show that

has a quick visual selective recognition response to Hg

and Ag

. The addition of metal ions caused the color of

changed from colorless to yellow

and it can be identified by the naked eyes. The fluorescence spectrum of

has different changes with the adding of Hg

or Ag

to the solution. The presence of other ions does not interfere with the selective recognition of

for Hg

and Ag

. It is also found that the binding model of

and Hg

/Ag

for fluorescent recognition is different:

coordinates with Ag

to form complex which causes fluorescence quenching effect;

coordinates with Hg

to form complex which causes fluorescence quenching effect

then the complex removes HgS to produce a new compound.

关键词

咔唑硫脲席夫碱离子识别

Keywords

carbazolethioureaSchiff baseions recognition

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